How to bid on Construction Manager as Constructor Services for GSA Headquarters

What the agency is buying

The U.S. General Services Administration (GSA) Public Buildings Service is seeking a Construction Manager as Constructor (CMc) for the renovation and reactivation of its historic headquarters building at 1800 F Street NW, Washington, DC. This project aims to transform the building into a modern, adaptable federal workplace for GSA and the U.S. Office of Personnel Management (OPM).

The work includes renovating Wings 0 and 3, tenant improvements in Wings 1, 2, and 4, building envelope repairs (masonry, windows, roofs), and courtyard upgrades with raised plazas and canopy enclosures. The CMc will provide design input and constructability review during the design phase, and then execute the construction portion of the project. The design phase and early core and shell construction services will be firm-fixed-price. Optional construction services for interiors and courtyards may also be firm-fixed-price.

This is a full and open competition under NAICS code 236220 (Commercial and Institutional Building Construction), with a small business size standard of $45 million in average annual receipts.

Key dates and deadlines

The solicitation was published on July 24, 2026. A Request for Information (RFI) is due by August 18, 2026. A pre-proposal conference is scheduled for August 11, 2026; mandatory prior notification of attendance is required. Phase I proposals are due by August 28, 2026, at 11:00 AM Eastern Time.

Design phase and early core and shell construction services are expected to begin in January or February 2027. Optional construction phase work (Tenant Interiors & Courtyards) is anticipated later in 2027. The total period of performance from the early construction and design phase through substantial completion is approximately 660 calendar days.

Who this opportunity suits

This opportunity is suitable for experienced construction firms specializing in commercial and institutional building construction, particularly those with expertise in renovating historic properties. Firms should be capable of managing complex projects involving multiple phases, including design input, core and shell construction, tenant improvements, and building envelope repairs.

The CMc delivery method requires a firm that can provide constructability review during the design phase and then execute the construction. Firms must be registered in SAM.gov to be eligible.

How to respond

The solicitation will only be available electronically on SAM.gov. To access the solicitation, click “View original source” on the portal. If the first click takes you to the portal’s homepage, click it again to go directly to the bid. You may need a free account to view documents, though this is not always required.

It is essential to register on SAM.gov to receive updates and all information regarding this solicitation. The Phase I solicitation was expected to be available on or about July 17, 2026.

Tips for preparing a competitive response

This procurement uses a two-step (2-Step) CMc solicitation process with a “Best Value” tradeoff evaluation. The combined weight of non-price factors is significantly more important than the Total Evaluated Price. For the overall best value tradeoff, Factor 4 (Management and Technical Approach) is significantly more important than Factors 1, 2, 3, and 5.

Phase I focuses on Request for Qualifications (RFQ) factors: Key Personnel, Past Performance, and Past Technical Experience. Ensure your proposal clearly highlights the qualifications and experience of your key personnel, provides strong past performance references, and details relevant past technical experience, especially with historic renovations or similar complex projects.

Phase II focuses on Request for Proposals (RFP) factors: Management and Technical Approach (for Design Phase Services and Construction Phase Services), Small Business Utilization Plan, and Project Price Proposal. Develop a robust management and technical approach that demonstrates a clear understanding of the project's complexities and a sound strategy for both design input and construction execution. Pay close attention to the Small Business Utilization Plan. The government intends to award without discussions, so make your proposal complete and compelling from the outset. Also, be aware of the “Paired Proposal Procedure” for Project Labor Agreement (PLA) requirements, which allows for both a PLA and a non-PLA proposal.