1800F Phase 2 Modernization Feasibility Study_Final Submission 04-03-2026.pdf

This is a Phase 2 Modernization Feasibility Study final submission for the 1800F Street GSA Headquarters Building renovation project. The document represents the completed feasibility analysis submitted on April 3, 2026, supporting the Construction Manager as Constructor (CMc) delivery method for the 1800 F Street NW building in Washington, DC. The feasibility study evaluates the technical and logistical viability of renovating Wings 0 and 3, conducting tenant improvement work in Wings 1, 2, and 4, addressing building envelope repairs including masonry, windows and roofing, and reactivating building courtyards through raised plaza additions and canopy enclosures. The project aims to enable GSA and the U.S. Office of Personnel Management (OPM) to co-locate within the historic structure while preserving its architectural integrity and restoring it to full operational capacity.

The feasibility study provides the foundational planning and analysis required for GSA's Public Buildings Service to proceed with contractor selection for design and construction services under Solicitation 47PB5426R0007. As a Phase 2 deliverable, this submission documents constructability assessments, design feasibility, staging plans, cost considerations, and schedule assumptions that will inform the CMc contractor's design phase services and final construction contract execution. The study supports GSA's objective to transform the 1986 National Register-listed historic building into a modern, adaptable federal workplace that meets contemporary workforce requirements and building performance standards.