824485engMdNatl.pdf

RFP P46-138 A/E Services for Historic Concord Manor Preservation, Rehabilitation and Infrastructure Improvements

Maryland National Capital Park & Planning Commission

Prince George’s County Department of Parks & Recreation

Capital Planning & Development Division 6600 Kenilworth Avenue, Riverdale, MD 20737 - 301-699-2255

REQUEST FOR PROPOSALS

RFP NO. P46-138

SOLICITATION RELEASE DATE: May 14, 2026

ARCHITECTURAL AND ENGINEERING SERVICES

Maryland-National Capital Park and Planning Commission (M-NCPPC), is soliciting proposals from highly qualified consultant teams to provide architectural and engineering (A/E) services for Historic Concord Manor – Preservation, Rehabilitation, and Infrastructure Improvements

PROPOSAL DUE DATE/TIME: July 17, 2026, at 2:00 p.m.

NOTE: A Pre-Proposal conference and site visit has been scheduled for June 11, 2026, @ 10:00 A.M. at 8000 Walker Mill Rd, Capitol Heights, MD 20743 in front of the existing manor. Offerors are strongly suggested to attend the Pre-Proposal conference and site visit. In the event of inclement weather or other unforeseen circumstances, the rain date will be Friday, June 12, 2026, at 10:00 AM, same location.

Note: The project site is open and accessible from 8:00 A.M. to 5:00 P.M. Offerors are strongly encouraged to visit the site and may do so at their convenience. Access to the interior of the existing structure(s) is prohibited prior to the pre-proposal conference and site visit.

Vendors are strictly prohibited from using any form of Artificial Intelligence (AI) Bots, automated tools, or virtual assistants during Pre-Proposal/Bid Conferences. All communications and participation in such conferences must be conducted by human representatives of the vendor organization. Vendors who utilize any form of (AI) Bots, automated tools, or virtual assistants during the conference will be removed from the meeting.

Reasonable accommodations will be provided by the Commission upon request with reasonable advanced notice.

REQUEST FOR PROPOSALS (RFP) SUMMARY

RFP

Number: P46-138

Proposal Name:

Architecture/Engineering (A/E) Services for Historic Concord Manor – Preservation, Rehabilitation, and Infrastructure Improvement

Pre- Proposal Meeting:

June 11, 2026, at 10:00 a.m., at 8000 Walker Mill Rd, Capitol Heights, MD 20743; Rain Date: June 12, 2026, at 10:00 a. m. Offerors wishing to attend must RSVP via email by June 8, 2026, at 12:00 p.m. to Rocheta.Locklear@pgparks.com.

Deadline for Technical Questions:

June 18, 2026, at 12:00 p.m.

Questions must be submitted in writing via e-mail to:

Rocheta.Locklear@pgparks.com

Deadline for Proposals:

July 17, 2026, no later than 2:00 p.m.

Proposal Submittal Instructions:

Proposals and required forms and documents must be submitted via the Commission’s electronic bid service provider, OpenGov Procurement. The Commission will not be accepting paper copies of proposals. Follow the link below to submit an electronic Proposal for this solicitation:

https://procurement.opengov.com/portal/mncppc

Oral, telephonic, telegraphic, and facsimile Proposals will not be accepted.

Offerors are cautioned to allow sufficient time to ensure that all proposal documents are successfully uploaded to OpenGov before the Deadline for Proposals. Late proposals will not be accepted. Offerors are to conform to the procurement conditions herein.

All notifications, updates and addenda will be posted on OpenGov. Offerors are responsible for monitoring the site to obtain information regarding this solicitation. Failure to respond to required updates may result in a determination of a nonresponsive proposal.

THE COMMISSION IS NOW REQUIRING ALL VENDORS TO REGISTER

ON THE COMMISSION’S ONLINE VENDOR REGISTRATION (EZ

PROCUREMENT) SITE HERE.

Inquiries:

All inquiries regarding this solicitation are to be made to:

Rocheta Locklear, Construction Procurement Specialist Email: Rocheta.Locklear@pgparks.com MARYLAND RELAY SERVICE: (800) 735-2258 [for the hearing impaired]

TABLE OF CONTENTS

Part I. General Information

Part II. General Conditions

Part III. Special Conditions

Part IV. Scope of Work and Requirements

Part V. Proposal Submission and Evaluation

Part VI. Forms

A. Proposal Declaration B. Statement of Evidence of Responsibility C. Non-Discrimination in Subcontracting D. Insurance Checklist E. Price Proposal F. Subcontractor Utilization Report

Part VII. Attachments

A. Concept Plans

1. A.1 - Concord Manor – Site Improvement Concept Plan

2. A.2 - Concord Manor - Arch. Improvement Concept Plan

3. A.3 - Concord Manor - Museum Development Concept Plan

B. Existing Reports

1. B.1 - Concord Manor – Dendrochronology Report_2014

2. B.2 - Concord Manor – Paint & Plaster Finishes Report_2019

3. B.3 - Concord Manor – Hazardous Materials Report_2019

4. B.4 - Concord Manor – Lead Based Paint Report_2023

5. B.5 - Concord Manor – Soil Sampling Report_2020

6. B.6 - Concord Manor – Structural Condition Survey_2006

7. B.7 - Concord Manor – Historic Structures Report_2025

8. B.8 - Concord Manor – Archaeological Monitoring Report_2026

C. M-NCPPC Park Design Guidelines D. M-NCPPC 2010 ADA Standards E. Sample Contract

PART I

GENERAL INFORMATION

PRESUBMISSION INFORMATION

Examination of Proposal Documents Offerors must examine all solicitation documents very carefully and must make their proposal after examination of the location and/or nature of the proposed work. The submission of a proposal indicates that the offeror thoroughly understands all the terms and conditions, instructions, and specifications of the solicitation.

Pre-Proposal Meetings Vendors are strictly prohibited from utilizing any form of Artificial Intelligence (AI) Bots, automated tools, or virtual assistants during Pre-Proposal/Bid Conferences. All communications and participation in such conferences must be conducted by human representatives of the vendor organization. Vendors who utilize any form of (AI) Bots, automated tools, or virtual assistants during the conference will be removed from the meeting. Reasonable modifications and accommodations will be provided by the Commission upon request with reasonable advance notice.

Commission Assistance in Proposal Preparation Commission staff will not assist any offeror or offeror agent in the actual preparation of the proposal. Offerors or their agents will not be permitted to use Commission telephones or other facilities in the preparation of the proposal unless the Commission procurement representative has given specific authorization.

Interpretation of Proposal Documents and Correction of Proposal Documents Should an offeror require an interpretation or clarification of any provision of the solicitation documents or related information provided by the Commission, or believe that there is an ambiguity, error, inconsistency or discrepancy in these documents or information, the offeror must notify the Commission in writing at least five (5) working days prior to the date set for receipt of proposals.

Address all questions to: Department of Finance, Corporate Procurement Office

6611 Kenilworth Avenue, Suite 300 Riverdale, MD 20737 Email: Rocheta.Locklear@pgparks.com.

Office: (301) 699.2562 Fax (301) 454-1606

An offeror who fails to request any such interpretation or clarification waives any claim for additional cost or time spent addressing any ambiguity, error, inconsistency, or discrepancy in any such documents or information which is found to have been apparent at the time of receipt of proposals.

All interpretations, clarifications, corrections, changes, or other directions related to these requests of offerors will be provided in writing by the Commission and posted on www.mncppc.org and on the OpenGov Procurement website. Offerors are solely responsible for checking the solicitation page frequently for Addenda.

Responses to offeror notifications and inquiries made in any other manner, and especially any oral explanations, instructions or comments provided by any representative of the Commission or its Design Professional(s), will not be binding on the Commission.

If an offeror omits acknowledgment of Addenda, M-NCPPC may request that the successful offeror state in writing that the offeror will be bound by any substantive changes made to the terms of the RFP by the Addenda without any effect on the cost of the project.

Extension of Proposal Opening The Commission may extend the Deadline for Proposals at its option. If the deadline is extended, the Commission will provide written notifications posted on www.mncppc.org and the OpenGov Procurement website.

Preparation and Submission of Proposals All proposals must be submitted as indicated in the RFP, and must include:

a. Initialed by the Offeror where there are erasures or other changes in the proposal.

b. Signed in ink by authorized principals with the Offeror's legal name fully stated.

Corporations must give the state in which incorporated, using the phrase "A Corporation organized under the laws of the State of ". Partnerships must give names of partners, using the phrase "Co-partners, doing business under the firm name of ". Individuals using a trade name must give the individual name, using the phrase "An individual doing business under the trade name of " (see Form A – Proposal Declaration – in Part VI).

c. Submitted in accordance with the format as specified in Part V. Proposals may be submitted as the Offeror may determine, but the proposals must follow the prescribed format as to the requirements of content and order of content.

d. Fully completed by the Offeror, including all information requested and any attachments that may be required.

e. Uploaded on or before the time and date, electronically as specified on pages 1 and 2 of this RFP.

Only Proposals submitted through OpenGov Procurement Portal will be accepted.

Facsimile or e-mailed Proposals will not be accepted.

M-NCPPC is not liable for any costs incurred by any Offeror in connection with this RFP.

The expenses incurred by the proposer in the preparation, submission, and presentation of the proposal are the sole responsibility of the proposer.

Receipt and Opening of Proposals Proposals received prior to the date and time specified for the receipt of proposals will be securely kept electronically unopened. The Commission representative whose duty it is to open the proposals will decide when the specified opening time has arrived.

If the Offeror to whom an award is made should fail to execute a contract or deliver any insurance certificates within the time specified:

a. The award may be annulled and the project awarded to the Offeror ranked second under the evaluation criteria, who shall be required to fulfill all stipulations as if such Offeror were the original Offeror to whom the award was made; or

b. The Commission may reject all remaining proposals.

Unless otherwise stated in the RFP, the Commission reserves the right to award in the aggregate or to make separate awards. The Commission reserves the right, when reviewing proposals for award, to waive minor informalities or irregularities in the proposals and in the proposing procedure. The Offeror to whom the award is made will be notified at the earliest possible date. The Commission reserves the right to reject any or all proposals, and to reject any or all optional items included in the proposal.

Modification and Withdrawal of Proposals An Offeror can modify or withdraw a Proposal submitted in response to this RFP by sending a written notice to the Commission representative identified in the Request for Proposals Summary on page 2. Such notice must be received before the time and date specified as the Deadline for Proposals.

Timely modifications or withdrawals must be in writing over the signature of the Offeror.

Modifications or withdrawals must include written confirmation over the signature of the Offeror, and must have been received on or before the date and time established as the Deadline for Proposals.

Withdrawn Proposals may be resubmitted up to the Deadline for Proposals, provided that they are then fully in conformance with the RFP.

Proposals cannot be modified or supplemented after the Deadline for Proposals.

Irrevocability of Proposals Unless otherwise provided in the RFP, proposals submitted shall be irrevocable for a period of one hundred twenty (120) calendar days following the date of proposal receipt.

Consideration of Proposals Proposals will be opened privately. Unless stated otherwise in the RFP or in any Addenda to the RFP, the properly identified Proposals received on time will be reviewed and evaluated by the evaluation committee.

M-NCPPC has the right to reject any or all Proposals and, in particular, to reject a Proposal not accompanied by any data required by the RFP documents or a Proposal deemed incomplete or irregular in any way by M-NCPPC.

M-NCPPC’S Rights and Liabilities M-NCPPC reserves all rights available to it by law in administering this RFP including, without limitation, the right in its sole discretion to:

Reject any and all proposals at any time;

Terminate consideration or evaluation of any and all proposals at any time;

Suspend, discontinue, and/or terminate discussions regarding confidentiality

Agreements, interim agreements, and comprehensive agreements at any time prior to

The authorized execution of such agreements by all parties;

Request and/or receive additional information regarding any proposal;

Issue addenda to and/or cancel any RFP;

Revise, supplement, or withdraw all or any part of this RFP;

Request revisions to RFP proposals.

An Offeror who submits a proposal agrees to hold M-NCPPC, their officers, employees, agents, and volunteers harmless and free from all liability, loss, injury, and/or cost and expense which might be incurred by such Offeror in responding to, or as a consequence of, the RFP, and agrees to waive any and all claims for damages arising in connection with the procurement process contemplated by the RFP.

An Offeror shall not employ any subcontractor, supplier, or other individual or entity against which M-NCPPC may have reasonable objection. An Offeror shall not be required to employ any subcontractor, supplier or other individual or entity to furnish or perform any of the Work against which Offeror has reasonable objection.

This is notification to prospective Offerors that M-NCPPC has unlimited data rights regarding Proposals submitted in response to its Solicitations. Unlimited data rights mean that the M-NCPPC has the right to use, disclose, reproduce, prepare derivative Works, distribute copies to the public, or perform publicly and display publicly any Information submitted by Offerors in response to this or any Solicitation issued by M-NCPPC.

However, information that is deemed to be confidential commercial or financial Information as defined by the Maryland Public Information Act (MPIA), MD [State Gov.]

Code Ann, §§10-611 through 10-630 will be exempted from disclosure in accordance with MPIA. It is the responsibility of the Offeror to clearly identify each part of its Submission that is confidential commercial or financial information by stamping the bottom right-hand corner of each pertinent page with one-inch bold face letters stating the words "confidential" or “proprietary.” The Offeror agrees that any portion of the Submission that is not stamped as proprietary or confidential will be deemed not to be proprietary or confidential.

Mistakes in Proposals After the opening of proposals, Commission staff shall examine all proposals for mistakes.

In cases of apparent mistakes, other than those involving extension of unit prices or other arithmetic errors, when Commission staff has reason to believe that a mistake may have been made, staff shall request from the offeror a verification of the proposal. If the offeror alleges a mistake, the matter shall be brought to the attention of the Purchasing Manager.

Such actions shall be taken prior to award.

The Purchasing Manager is required to make the administrative determinations necessary in cases of alleged proposal mistakes. The authority permitting correction of proposals is limited to proposals which are responsive as submitted and shall not be used to permit correction of proposals to make them responsive.

If the Purchasing Manager knows or has reason to conclude that a mistake in a proposal may have been made, the Purchasing Manager shall require that the offeror confirm the proposal. Confirmation by the offeror of the proposal will be requested when the proposal reflects either an obvious, apparent error on its face or the proposal’s amount is unreasonably lower than those of either the other proposals submitted or the Commission’s estimate.

If the offeror fails to respond to a request for confirmation of an apparent mistake, within the time allotted, to the Purchasing Manager, the proposal may be considered as originally submitted or may be rejected as non-responsive at the discretion of the Purchasing Manager. If the offeror confirms his proposal, the Purchasing Manager shall consider it as originally submitted.

If the offeror alleges a mistake, the Purchasing Manager shall advise him to support the allegation by statements concerning the alleged mistake and by all pertinent evidence, such as the offeror’s file copy of the proposal, original worksheets and other data used in preparing the proposal, such as subcontractor and supplier quotations, if any, published price lists, and any other evidence which will serve to establish the mistake, the manner in which it occurred, and the proposal actually intended.

Additionally:

A determination may be made permitting the offeror to correct his proposal if the offeror requests permission to do so and clear and convincing evidence establishes both the existence of a mistake and the proposal actually intended. In lieu of proposal correction, the Commission may permit a low offeror alleging a material mistake of fact to withdraw his proposal if there is reasonable proof that a mistake was made, and the intended proposal cannot be ascertained.

A determination may be made permitting the offeror to withdraw his proposal if the offeror requests permission to do so and clear and convincing evidence establishes the existence of a mistake. However, if the evidence is clear and convincing both as to the existence of a mistake and as to the proposal actually intended, and if the proposal, both uncorrected and corrected, is the lowest proposal received, a determination may be made to correct the proposal and not permit withdrawal.

If the evidence does not warrant a determination under the two paragraphs above, a determination may be made by the Purchasing Manager that an offeror may neither withdraw nor correct his proposal.

Any clerical mistake, apparent on the face of a proposal, may be corrected by the Commission prior to award, if the staff member has first obtained from the offeror verification of what was actually intended. Examples of such apparent mistakes are obvious misplacement of a decimal point, typographical errors, and mistakes in the designation of the unit of measure. Correction shall be reflected in the award document.

After proposal opening, an otherwise low offeror shall not be permitted to delete exceptions to the proposal conditions or specifications which affect price or substantive obligations.

Nothing in this section is intended to prohibit the Commission from accepting a proposal correction resulting in a reduction in price from the low offeror after proposal opening, provided that such reduction is not conditioned on or does not result in the modification or deletion of any condition contained in the solicitation.

Award of Contract The award will be made under the Sealed Proposal Method. Under the Sealed Proposal Method, discussions after proposals have been opened are permitted to allow clarifications and changes in the proposals. Judgement factors may be used not only to determine if the service offered meets the required criteria, as stated in this proposal, but also to evaluate competing proposals. Thus, the quality of the service may be used as a trade-off against the price of the service, and awards can then be made to the responsive and responsible Offeror whose proposal is most advantageous to the Commission.

Failure to enclose and submit requested data or comply with the requests as stated herein may be cause for rejection of the proposal as non-responsive.

Changes in the phraseology of the proposal, additions, unauthorized substitutions, and limiting or conditional provisions may be cause for rejection of the proposal as nonresponsive. A proposal may be rejected as non-responsive if the Offeror fails to comply with the Commission’s Anti-Discrimination Program.

A proposal from a debarred or suspended Offeror will be rejected as non-responsible.

“Responsible” means the Offeror is capable to fully perform the contract requirements and has demonstrated integrity and reliability that assure good faith performance.

If the Offeror to whom an award is made should fail to execute the Contract or deliver any insurance certificates within the time specified:

1. The award may be annulled and the project awarded to the Offeror ranked second under the evaluation criteria, who shall be required to fulfill all stipulations as if such Offeror were the original Offeror to whom the award was made; or

2. The Commission may reject all remaining proposals.

Unless otherwise stated in the Scope of Work section, the Commission reserves the right to award in the aggregate or to make separate awards.

The Commission reserves the right, when reviewing proposals for award, to waive minor informalities or irregularities in the proposals and in the proposing procedure. The Offeror to whom the award is made will be notified at the earliest possible date. The Commission reserves the right to reject any or all proposals, and to reject any or all optional items included in the proposals.

The Commission reserves the right to not issue an award for this project and to re-issue the project at a future date for any reason.

Protests Any actual or prospective offeror who is aggrieved in connection with the solicitation of proposals or award of a purchase may protest to the Commission’s Purchasing Manager.

Protesters are urged to seek resolution of their complaints initially with the purchasing agent. A protest related to an invitation for bids shall be submitted in writing prior to the opening of bids, unless the aggrieved person did not know and should not have known of the facts giving rise to such protest prior to bid opening. The protest shall be submitted in writing and received within 10 calendar days after such aggrieved person knows or should have known of the facts giving rise to the protest.

The protest must include:

the name and address of the protester;

identification of the solicitation or purchase;

statement of reasons for the protest;

any supporting documentation to substantiate the claim made, unless the documentation is not available within the protest delivery time, in which instance the expected date the material will be available is to be stated; and the remedy sought.

The purchasing agent shall, upon written request, make available to the protester information submitted that bears on the substance of the protest except where information is proprietary or otherwise confidential. The protester shall submit any additional information requested by the Purchasing Manager within five (5) calendar days after receipt of the request for such information. Failure of the protester to respond to a request for information may result in the resolution of the protest on the basis of available information.

The decision of the Purchasing Manager shall be final and conclusive; unless fraudulent, or:

within 10 calendar days from receipt of the written decision, the protester mails or otherwise furnishes a written appeal to the Executive Director, or any person adversely affected by the decision commences an action in court.

The decision of the Executive Director shall be final and binding.

Ethics in Procurement By submitting a Proposal, the Offeror agrees to adhere to the Commission’s policy on ethics in purchasing. This policy prohibits any person from offering, giving, or agreeing to give any Commission employee or former Commission employee a gratuity or an offer of employment in connection with any aspect of a Commission procurement. Further, payment or offers to pay contingent fees related to procurement of Commission purchases are prohibited except for retention of bona fide employees or bona fide established commercial selling agencies for the purpose of securing business. Potential offerors are urged to review the ethics policy in detail. Copies may be requested from the Purchasing Division (phone: 301/454-1600).

Anti-Discrimination Program By submitting a proposal, an offeror shall understand and agree to:

1. Not discriminate against minority, female, and disabled-owned firms (MFDs) in the selection of subcontractors on Commission projects. For contracts with subcontracting opportunities, offerors are required to provide MFDs the opportunity to submit bids as subcontractors and to award those MFDs submitting low bids the subcontracts unless there are legitimate reasons not to do so. On certain contracts, the Commission will require offerors to submit standardized forms with their bids that indicate how they have complied with the subcontracting non-discrimination requirements. The Special Conditions section of the bid documents specifies whether these forms must be submitted.

2. Not discriminate against MFDs in their performance of work as subcontractors on

Commission contracts.

3. Submit forms verifying payment to subcontractors throughout the course of a contract.

4. Not discriminate against any employee or applicant for employment because of age, sex, race, creed, disability, or national origin. If a firm is determined by a final order of an administrative agency or a court to be in violation of federal, state or county non-discrimination laws, any agreement entered into by the Commission with a firm may be terminated or suspended in whole or in part by the Commission, and the firm may be debarred from bidding on future contracts with the Commission.

The subcontracting non-discrimination program shall apply not only to the initial contract award, but also to certain major change orders and amendments that serve to increase the dollar value of the initial contract.

Any violation of the Commission’s Anti-Discrimination Program may result in suspension or debarment of the violator as well as other civil or administrative remedies.

A minority-owned business is any entity that engages in commercial transactions and is at least 51 percent owned and controlled by one or more individuals from the following groups: African Americans (all persons having origins in and of the black racial groups of Africa), Hispanics (all persons of Mexican, Puerto Rican, Cuban, Central or South American, or other Spanish culture or origin, regardless of race), Asians or Pacific Islanders (all persons having origins in any of the Far East, Southeast Asia, the Indian Subcontinent, or the Pacific Islands), and Native Americans (all persons of American Indian, Aleut, Eskimo or Native Hawaiian background). A female-owned business is any entity that engages in commercial transactions and is at least 51 percent owned and controlled by one or more women. A disabled-owned business is any entity that engages in commercial transactions and is at least 51 percent owned and controlled by persons with physical or mental impairment that substantially limits one or more of the major life activities of the individual, as defined in the Americans with Disabilities Act of 1990.

PART II

GENERAL CONDITIONS

Completion of Work Upon award of the proposal, Offerors must be prepared to complete/deliver the work within the period provided in the proposal and, after contract award, as amended and approved by the M-NCPPC Project Manager.

Minority, Female, and Disabled (MFD) Subcontracting Level of Participation

This RFP has significant subcontracting opportunities, therefore, each Offeror must demonstrate compliance with the Commission’s Non-Discrimination in Subcontracting Program. For this procurement, the Commission has established an MFD participation goal of 15%.

A Nondiscrimination in Subcontracting Form (Part VI. Forms) must be completed and signed by an authorized officer of the company in order for the Proposal to be deemed responsive.

Insurance Requirements The Consultant shall be required, prior to the execution of the contract, to provide the Commission with satisfactory proof of all insurance required by the Insurance Checklist (Part VI. Forms).

Automated Clearing House (ACH) The Commission’s preferred method of payment is via Automated Clearing House (ACH). This allows the deposit of ACH payments directly into your bank account, making it the fastest, most efficient, and secure way to receive timely payments. In order to receive payment via ACH, you must first be a registered vendor with the Commission and have a vendor number. Please direct all ACH inquiries and concerns to ACH@mncppc.org.

PART III

SPECIAL CONDITIONS

Proprietary Information Material submitted in response to this RFP will become public record and will be subject to inspection after Intent to Award notice is issued. Any material requested to be treated as proprietary or confidential must be clearly identified and easily separable from the rest of the proposal. Such request must include a justification. The request will be reviewed and either approved or denied by the Purchasing Manager. If denied, the proposer will have the opportunity to withdraw its entire proposal, or to remove the proprietary restrictions. Neither cost or pricing information or a total proposal shall be considered proprietary.

Debriefing of Unsuccessful Offerors Upon written request made within fifteen (15) calendar days after award, the M-NCPPC will provide any unsuccessful Offeror with a discussion of the M-NCPPC’s evaluation of its proposal, citing the deficiencies and weaknesses. Point by point comparisons with the proposals of others will not be made. Debriefings will not include discussions of information contained in other Offerors’ proposals.

Subconsultants The proposal shall clearly indicate all proposed subconsultants to be utilized to perform the requirements of this RFP. Once a contract has been awarded to the successful Offeror, no subconsultant shall be changed without prior written approval of the Commission’s Project Manager. Any proposed substitution for any proposed personnel or subconsultant must be with persons and/or firms of equal or comparable qualifications and experience.

Key Personnel It is anticipated that the persons named in the selected proposal will be assigned to the project. No substitution of principal personnel included in the proposal may occur without written approval of M-NCPPC. Approval for substitutions in key personnel under the contract and listed in the proposal will only be granted for persons who are being replaced with persons of comparable education, professional qualifications, and technical experience. The Consultant must submit written professional qualifications and experience for approval within ten working days prior to replacement. Approved substitutions of any personnel shall be provided at no additional cost to the Commission.

PART IV

SCOPE OF WORK AND REQUIREMENTS

SECTION 4.1 SCOPE OF SERVICES

A. Introduction

Architectural Description & Historical Context Concord and Cemetery, located at 8000 Walker Mill Road in the Capitol Heights vicinity of Prince George’s County, Maryland, is a late 18th-century domestic complex constructed circa 1798 for Zachariah Berry, Sr. The property is listed in the National Register of Historic Places (1982), is included in the Maryland Inventory of Historic Properties (MIHP No. PG:75A-1) and is protected by a preservation easement held by the Maryland Historical Trust. Concord is also designated as Prince George’s County Historic Site (75A-001). It is currently owned and managed by the Maryland-National Capital Park and Planning Commission (M-NCPPC).

Concord is a substantial two-and-one-half-story brick dwelling laid in Flemish bond, with a rectangular form and a traditional Georgian floor plan. While often characterized as Federal in style, the building is more accurately understood as Federal-influenced in its original decorative detailing, rather than a fully developed high-style example. Surviving features from this early phase include the principal stair, select interior mantels, and the south elevation entrance with a fanlight. At the time of its construction, the house was noted for relatively refined amenities, including a finished attic and service functions accommodated within the main block.

The property remained in the Berry family for approximately two centuries and functioned as the center of a large agricultural enterprise. Concord plantation originally comprised approximately 783 acres and, at its height, was supported by the labor of enslaved individuals. A family cemetery remains on the grounds.

Following the death of Zachariah Berry, Sr. in 1845, the property passed through the family and appears to have experienced a period of vacancy and deterioration prior to reoccupation by Thomas Berry in the mid-19th century. This interval likely precipitated a substantial campaign of renovation. Beginning in the 1850s–1860s, the house was extensively altered with the introduction of Greek Revival elements, including changes to interior trim, doors, windows, and mantelpieces. A two-story frame service wing, constructed during this period, reflects the reorganization of domestic and service spaces, including the relocation of the kitchen from the basement to an attached structure, representing a noteworthy surviving example of mid-19th-century service reorganization.

Additional agricultural and domestic outbuildings were constructed in the mid-19th century, including a corn crib, stable, tobacco barn, and quarters associated with the operation of the plantation. These resources contribute to the understanding of the property as a working agricultural landscape.

Around 1900, Concord underwent a further phase of modification, including the addition or alteration of porches, dormers, and cornice treatments. These changes, while less extensive than the earlier campaign, further shaped the building’s present appearance.

As a result of these successive periods of alteration, Concord does not represent a single, unified architectural style, but rather a layered building reflecting evolving tastes, needs, and circumstances over more than a century of occupancy. Despite substantial modifications-particularly to the principal first-floor spaces-the house retains its overall massing, proportions, and enough early decorative features to convey its late 18th-century origins and historical associations. It remains a notable example of large-scale, Federal-influenced domestic architecture in Prince George’s County.

In recent years, M-NCPPC has undertaken significant stabilization and rehabilitation efforts, including the removal of incompatible modern interventions, addressing water infiltration, completing emergency structural restoration, and establishing a watertight building envelope. These efforts have resulted in a stable and secure structure and position the property for the next phase of preservation work.

Located less than three miles east from the Nation’s Capital, The Walker Mill Regional Park, where the Historic Concord Manor is located, includes developed and undeveloped lands and has been identified as a unique recreational asset since it was acquired by M-NCPPC in 1999. This acquisition, including +/- 500 acres of property with high historic significance to both the State of Maryland, Prince Georges County African American landowners and entrepreneurs & Maryland’s agricultural traditions.

In the present, within the last decade, the Concord House has been undergoing many historic rehabilitation efforts in an attempt to honor the legacy and help to teach the community about the Concord property, land and history. Most recently, M-NCPPC has completed remediation efforts surrounding “modern” interventions to the property, tracing and addressing water intrusion throughout the structure, emergency structural restoration and ensuring a watertight envelope. These efforts have achieved a safe and structurally sound building for future work. The RFP described herein seeks to build on this momentum.

As it relates to this specific RFP, The Commission seeks to provide the community with the opportunity to learn through interaction, recreation and exposure to historical artifacts. The renovated structure will support tours, on-site events and education-based interaction with the living structure. M-NCPPC requires an experienced Architectural & Engineering Design team (A/E) to address the following needs of the Historic Concord Manor.

The awarded A/E shall ensure that all project goals are met within the established budget. The A/E shall coordinate with all utility companies for any required upgrades to complete the project. The project shall be designed and subsequently constructed following all required Federal, State, and Local laws, rules, regulations, guidelines and permit requirements. All design work and subsequent managed construction to be performed in strict accordance with the Secretary of The Interior’s Standard for The Treatment of Historic Properties and strictly adhere to historic preservation standards and procedures as described by The Maryland Historic Trust (MHT) and Prince George’s County Historic Preservation Commission (HPC).

B. Minimum Offeror and Key Personnel Qualifications

Offerors may present projects that demonstrate overlap with qualification requirements. Collectively, the submitted projects shall demonstrate experience in historically sensitive design involving, but not limited to, structural rehabilitation or stabilization of historic structure, historic millwork documentation, masonry restoration design, historic paint investigation and preservation.

Minimum Qualifications

1. The Offeror shall demonstrate successful completion of at least three (3) Historic Preservation A/E design projects of comparable scope and complexity within the last ten (10) years, designed in accordance with the Secretary of the Interior’s Standards for the Treatment of Historic Properties. Offerors that demonstrate and provide additional project experience involving subsurface archaeological considerations, gallery or archival spaces, active or passive exhibits, or interpretive or educational spaces may receive higher evaluation scores.

2. Offeror must be registered with Maryland State Department of Assessment and Taxation (SDAT) and be “Good Standing” with SDAT.

Key Personnel Qualifications:

1. Project Executive: The Project Executive shall have a minimum of ten (10) years of relevant experience in complex historic preservation projects or culturally significant projects.

2. Architectural Principal: The Architectural Principal shall have a minimum of seven (7) years of relevant experience in complex historic preservation projects or culturally significant projects with duties including construction project management, managing submittals, RFI’s, and proficiency in the use of project management software. Experience should include coordinating multidisciplinary teams, assisting in managing public contracts. Prior work on museums, community centers or recreation facilities is highly desirable.

3. Architectural Project Manager: Architectural Project Manager shall have at least five (5) years of experience and possess a professional license in his/her related field (i.e. professional architect, professional engineer, certified planner). The senior professional shall respond to Request for Information (RFI), coordinate with design and construction teams to resolve design-related issues and ensure all work is executed in accordance with the approved design documents.

4. Engineering Principal: The Engineering Principal shall have a minimum of ten (10) years of relevant experience in complex historic preservation projects or culturally significant projects with duties including construction project management, managing submittals, RFI’s, and proficiency in the use of project management software. Experience should include historic methods of construction; creative structural interventions and experience with historic structural masonry and timber analysis and remediation efforts are highly desirable.

5. Engineering Project Manager: . Engineering Project Manager shall have at least five (5) years of experience and possess a professional license in his/her related field (i.e. professional architect, professional engineer, certified planner, professional land surveyor). The senior professional shall respond to Request for Information (RFI), coordinate with design and construction teams to resolve design-related issues and ensure all work is executed in accordance with the approved design documents.

6. Cultural Resource Manager: Shall have at least ten (10) years of experience and possess a professional license in his/her related field (i.e. professional architect, professional engineer, certified planner, professional land surveyor). This role serves as primary contact between the A/E services team and the M-NCPPC CRM as it relates to all site and structure disturbance.

C. Project Description

M-NCPPC (herein collectively described as “Owner”) desires to contract with a qualified A/E for the Historic Concord Manor Rehabilitation and Modernization Project located at 8000 Walker Mill Road, Capitol Heights, MD. 20743 (herein referred to as “Project”). The Project is described in detail within this Request for Proposal (herein referred to as “RFP”) and generally includes the upgrade of all site utility services, new accessible and staff only parking, rehabilitation of the buildings damaged or deteriorated wood, plaster, masonry and paint throughout. This RFP also covers the development of the existing rooms, as described in the preliminary program document, interactive and visual gallery spaces, offices spaces, and small meeting rooms.

The intent and spirit of this RFP is to solicit a qualified A/E to develop a complete set of instruments to direct and manage the subsequent construction efforts required to produce a fully finished structure capable of hosting tours, support standard office works and meet the goals established below. In addition to the proposed existing structure design work, this RFP also includes new accessible and staff parking and the design and implementation of a cohesive and sustainably responsible site utility modernization program to include upgrades to the waste and potable water systems, the electrical service, mechanical system and all associated trenching, grading and stormwater management requirements as it relates to the site utility works.

M-NCPPC shall independently contract for Third Party Peer Plan Review Program (TPPPRP) and Third Party Inspection Program (TPIP). Offeror shall NOT include these services in their proposal for this project.

M-NCPPC intends to enter into a contract with the highest ranked responsive and responsible Offeror that will have specific contract provisions that may include: a A/E service Pricing Form to account for all project costs (design and construction administration including As-Built drawings); stakeholder communications and engagement, fixed fees, coordination with Construction Manager at Risk (CMaR) that will be separately contracted with by M-NCPPC for Guaranteed Maximum Price (GMP) at sixty-five percent (65%) design documents (or at that time mutually agreed upon), “open book” (auditable) contracting; design review process; and liquidated damages.

D. PROJECT GOALS

1. Coordinate the design of an environmentally sustainable and responsible means of providing Electrical, Potable Water, Wastewater and HVAC Utilities to the historic property to the greatest extent possible. Evaluate and test existing installed infrastructure (sewer lines).

2. Coordinate the design and engineering required to produce no fewer than 5 parking spaces near the existing structure. At minimum, 2 accessible spaces and three staff parking spaces.

3. Coordinate the design and engineering required to produce historically accurate fully finished spaces in accordance with local and federal regulations for the future uses including but not limited to new gallery spaces, offices, meeting spaces and restrooms.

a. Exterior walls, roofs, and foundations should be weathertight.

b. Exterior windows should be weathertight and operational unless otherwise specified by the project manager.

i. Linseed oil putty (Sarco or equivalent) should be specified

ii. Replacement glass should be specified as Artisan Glassworks

Type C or equivalent.

c. Exterior doors should be fully functional and weathertight with appropriate hardware and fasteners.

i. Evaluation of accessible routes into the house should include door widths and threshold height

ii. Accessibility must be considered in conjunction with historic integrity as specified in 2010 ADA (202.5).

d. Interior doors should be fully functional with the correct hinges, knobs, lock mechanisms and fasteners.

4. A percentage of the sites’ heating, not less than 60%, shall be provided via the use of geothermal heating in buildings where traditional heating is necessary.

The A/E will determine if this is feasible during the course of the project keeping in mind the archeological implications and cost. Consultant shall include the cost of investigation in the Price Proposal for this project, including but not limited to any description of what would be entailed in such an investigation, subcontractors to complete the investigation, and cost estimate associated with the installation of geothermal systems.

a. Add Alternate #1 shall be the cost to design geothermal heating systems and cost estimate for the systems once the investigation is complete, and M-NCPPC has approved moving forward with the geothermal system design.

b. Add Alternate #2: The A/E shall direct a minimally invasive investigation into the existing exterior wall foundation of the main structure to determine its long-term structural viability and the rate of thermal, moisture or vapor transfer. The consultant shall include the cost of investigation in the Price Proposal for this project and including, but not limited to, any design associated with findings.

SECTION 4.2. SCOPE OF WORK

A. The successful A/E for this historic preservation project shall ensure that the intent of the goals described above are met or exceeded by providing the following:

1. The A/E must become familiar with the Historic

Concord Manor HSR document (Attachment B.7) and the Historic Concord Paint & Plaster Analysis (Attachment B.2) and use both documents to inform the further analysis, investigation and reporting of the existing conditions.

2. Design drawings, construction documents, permitting and specifications for use by M-NCPPC in soliciting a qualified Construction Manager at Risk (CMaR).

3. Consultation with the M-NCPPC Project Manager (PM) during all phases of the design process.

4. Coordination with all consultants and contractors that are procured by M-

NCPPC.

4. Bidding phase services, including but not limited to, response to RFI’s, issuing of addenda and bid analysis.

5. Construction administration services.

6. Coordination with CMaR to be selected including but not limited to constructability review, permitting and cost estimates.

B. The Historic Preservation Services provided by the architect shall comply with the duties, responsibilities, and standards that are defined in Article 2 of AIA Document B205 -2017 Standard Form of Architect’s Services: Historic Preservation in their entirety

C. The design and by extension the restoration of the Concord Historic House interiors, exterior damage wood restoration, building mechanical systems upgrades, site utilities upgrades and accessibility retrofits must follow the Secretary of the Interior’s Standards for the Treatment of Historic Properties. Note that the retention of original material is a priority. Damaged fabric should be restored to the greatest extent possible. Provide a design to achieve the following minimum requirements:

1. Identify, investigate, and document the existing conditions, MEP, and infrastructure systems throughout the structure and site.

2. Where available, assess existing subsurface infrastructure for future use and demolish the existing subsurface line(s) and associated pull boxes, panels and equipment as necessary if found damaged, inoperable or inconsistent with future proposed use.

3. Coordinate the installation of new subsurface mechanical systems to reroute the existing site services to the proposed future location of the structure; new service line(s) to connect to existing service line on site at a point to be determined by the A/E’s MEP Engineers and coordination with a qualified Cultural Resource Manager (CRM) or Archeologist.

4. Where deemed damaged or deteriorated: remove, sand, prepare, prime and reinstall coats of paint on all previously painted surfaces to match historic paint study (Attachment B-2).

5. Re-secure, prepare, prime and refinish interior stairs to match existing throughout.

6. Remove all loose and/or spalling plaster and prepare for reinstallation to match existing historical adjacent examples, reference the Concord Manor Historical Paint and Plaster Analysis.

i. Interior plaster should be restored where possible. Flat stable walls and ceilings capable of accepting finishes is the goal for the interior walls.

ii. Restoration with modern gypsum and skim plaster may be appropriate where original finishes absent. These materials should only be used as approved by the M-NCPPC project manager.

iii. Re-fastening restoration and skim coat…