Appendix C - Basis of Estimate Worksheet - 20211021 _REVISED.pdf

OPR: AFCEC/COSC Ver 2.0 12 Oct 2021

ATTACHMENT C

BASIS OF ESTIMATE WORKSHEET

Purpose: To document assumptions and methods used to develop cost estimates for project programmed amount or Independent Cost Estimate (ICE) prior to contract solicitation; assist the independent review of construction cost estimates by government cost reviewers and evaluators; and minimize the financial risk for a given project.

Directions: IAW AFI 32-1020, provide AACEI RP 34R-05 “Basis of Estimate” or otherwise document knowledge of the project, quantities, scope and/or schedule and assumptions.

Provide concise details and a clear explanation of the project. Details or descriptions may be copied from supporting documents as appropriate. Cite sources.

1. GENERAL

Project Title:

Project Number (ABCD NN-NNNN):

Project Location (Installation/State or Country):

Project Program Year (FY):

Name/rank/role of persons in team writing the estimate:

Organization of person(s) writing the estimate:

Date of estimate (MMM-YY):

2. PROJECT SUMMARY

Time & Duration of Construction: Project Midpoint, Key Milestones:

Estimated Construction Start Date (MMM-YY):

Estimated Number of Months of Construction (MM):

Estimated Midpoint of Construction (MMM-YY):

Temporary or Swing Space Required – Gross Square Feet (GSF)/Gross Square Meters (GSM):

Purpose & Class of Estimate/Level of Design planning (Planning, Programming, Pre-Award):

Scope (separated between new and renovation work):

Facility/building type/uses:

Category Codes:

Floor area – GSM/GSF (Horizontal facilities M/FT):

Height – Number of stories, M/FT:

Describe facility/building systems (edit as required) A – Substructure A10 – Foundations

A40 – Slabs on Grade

B – Shell B10 – Superstructure

B20 – Exterior Walls

B30 – Roofing

C – Interiors C10 – Interior Construction

C20 – Stairs (as required)

C30 – Interior Finishes

D – Services D10 – Conveyances (as required)

D20 – Plumbing

D30 – HVAC

D40 – Fire Protection

D50 – Electrical

F – Special Construction & Demolition F20 – Selective Building Demolition (as required)

G – Building Sitework G10 – Site Preparation

G20 – Site Improvements

G30 – Site Civil/Mechanical Utilities

G40 – Site Electrical Utilities

AT/FP considerations and elements:

Cybersecurity:

Environmental mitigation & permits:

Extraordinary elements:

Deviations from AF standard design and/or Unified Facility Criteria corporate standards (list, narrative):

3. KEY ASSUMPTIONS

Effect on costs (summary):

Unusual schedule requirements:

Exclusions (identify what is not in the project but needed for complete work):

Exceptions (e.g., elements or features different from policy):

Demolition required:

Facility special systems, elements or items included/excluded:

Government-furnished, Contractor-installed equipment; Government-furnished, Government-installed equipment:

Extraordinary items:

4. DESCRIPTION OF ESTIMATE

Methods Used & Limitations Sources of Cost Data Used:

Area Cost Factor(s):

Changes/Markups to Default Data and Justifications:

Duration and Escalation (Justification):

Coordination:

Sustainability and Energy Measures:

Special/Unique Features:

Contracting Method:

Planned Responses to Potential Cost Growth:

ATTACHMENT A – Supporting Documents DD Form 1391 Statement of Work Other reference documents: (e.g., Planning Charrette Report, Smart Start Checklist, PDRI, as-built/existing conditions drawings, project drawings, pictures, etc.):