Federal building projects are funded and approved through agency-specific processes, not one government-wide construction budget. Many civilian projects run through the General Services Administration (GSA) and its Federal Buildings Fund, while federal courthouses can require separate design and construction approvals, and Department of Defense (DOD) projects may use military construction or operations and maintenance funds. Congress provides key approvals and funding authority; agencies procure and manage the work, while oversight should track changes and final costs as well as initial plans.
How a federal building project moves from need to construction
The details depend on the agency, the project’s legal authority, its size and scope, and the funding account. A common sequence is:
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- Identify and plan the need. The agency assesses its space or facility requirements and develops a proposed project. The scope, size, estimated cost, and schedule are planning inputs, not guarantees of the final result.
- Seek the required approvals and funding authority. Depending on the agency and project, this can involve a prospectus, congressional authorization, an appropriation, or obligational authority. These terms are not interchangeable: authorization establishes permission for a program or project under the applicable law, while an appropriation or other obligational authority makes funds available for specified purposes.
- Procure and deliver the work. Once the necessary approvals and funding are in place, the responsible agency selects contractors and manages design or construction under its procurement and contract rules.
- Monitor performance and close out the project. The agency follows cost, schedule, and scope during delivery. A useful account of performance also records baseline changes and final cost, rather than comparing only the original target with the completion date.
This sequence is a framework, not a universal statutory checklist. For a specific project, the controlling agency, authority, funding account, and approval requirements determine the actual path.
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| Project context | Funding route described by GAO | Approval or congressional role |
|---|---|---|
| Many civilian public-building projects managed by GSA | The Federal Buildings Fund (FBF), a revolving fund supported by rent paid by tenant agencies. Congress annually provides GSA obligational authority to use FBF resources for construction, operations, and maintenance. Congress may also provide supplemental appropriations or fund an agency directly. | For projects above applicable prospectus thresholds, GSA submits a prospectus describing the project and estimated cost to the congressional committees with jurisdiction. The applicable threshold and approvals depend on the project. |
| Federal courthouses | Funding can be staged: design and construction may be funded in separate phases. | GAO describes congressional committee authorization and congressional appropriations, often at both the design and construction phases. A site-and-design prospectus can describe initial scope, size, and estimated cost; a later construction prospectus addresses the construction phase. |
| DOD contingency construction | Depending on the project and authority, funding may come from military construction (MILCON) or operations and maintenance (O&M) appropriations. | Congressional consideration and the applicable reporting or approval path depend on project circumstances. GAO says projects above $9 million are typically identified in military-construction appropriations materials and generally in the annual National Defense Authorization Act in the facility context it reviewed; smaller projects can sometimes be specified too. |
For GSA projects, rent paid by tenant agencies supports the FBF, but rent alone does not automatically fund a particular new building. Congressional obligational authority and project approvals matter, and some projects may instead receive other appropriated funds.
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GSA projects: prospectuses, procurement, and delivery
GSA is the federal government’s landlord for many civilian buildings. GSA and tenant agencies identify and plan building needs. When a project exceeds the applicable prospectus threshold, GSA sends a prospectus to the congressional committees with jurisdiction. It describes the proposed project and its estimated cost; the threshold should be checked for the particular project rather than assumed to be the same for every building.
After required approval and funding are in place, GSA procures design and construction services, awards contracts, manages the construction contract, and monitors delivery. Estimates and baselines may change as contracts are awarded and conditions emerge. A useful project record therefore distinguishes the original plan from later approved scope, budget, or schedule revisions.
Courthouses: staged funding and lifecycle trade-offs
Courthouse projects illustrate why an initial construction estimate may not capture the full federal commitment. In GAO’s 2013 report GAO-13-263, the judiciary’s FY 2014–2018 five-year plan listed about $1 billion for the next phases of 12 recommended courthouse projects, while estimated federal costs over 20 years were $3.2 billion. GAO also found that 10 of the 12 projects had not been evaluated under the then-new Asset Management Planning process. These are historical findings and estimates, not current cost estimates or a statement about today’s project list.
GAO reported in 2025 that Congress appropriated $2.1 billion for 15 federal courthouse construction projects during FY 2016–2024. Separately, GAO concluded that changes in the U.S. Courts’ 2021 Design Guide could increase the size and cost of future courthouses. It recommended reassessing those changes with input from agency partners, project stakeholders, and courthouse occupants, while considering future rent and operations and maintenance costs. The reported appropriations cover the stated period and project population; they should not be read as a current annual funding level.
DOD construction: verify the project’s authority and threshold
DOD contingency construction is not the GSA process under another name. GAO describes MILCON and O&M appropriations as possible funding routes, depending on project and authority. GAO has also raised concerns about identifying the full universe and cost of such projects, deciding the appropriate level of construction, and reviewing projects when missions change.
In a 2026 report, GAO said that, in the DOD facility context it described, projects above $9 million are typically identified in military-construction appropriations materials and generally in the annual National Defense Authorization Act; smaller projects may also be specified. This is a reported threshold, not a universal current rule. For an active project, verify the governing law, appropriation, and project-specific requirements before applying it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to examine when overseeing a project
Oversight is more informative when it follows the project from its approved scope through final cost, including changes along the way. For a project or a comparison between projects, check:
- Authority and agency: Which agency is responsible, and what statute or project authority governs it?
- Funding: Which account pays for the work? Is funding provided in phases, and what approval or obligational authority applies to each phase?
- Scope and size: What scope was approved, and how does it compare with the scope eventually delivered?
- Budget and schedule: What were the original cost and schedule baselines, what revisions were made, and what were the final cost and completion date?
- Procurement and reporting: How were design and construction services procured, and what changes or results were reported to Congress?
- Lifecycle effects: Where relevant, do planning decisions account for future rent, operations, and maintenance costs?
- Lessons after completion: Does the agency assess completed projects and use the findings to improve future planning?
GAO’s 2019 review of 36 GSA major construction projects completed in FY 2014–2018 found that GSA routinely met cost and schedule goals. Those 36 projects had a combined total cost of $3.2 billion; GAO defined a “major” project for that review as one costing at least $20 million. GAO also found that GSA did not report the projects’ final costs or how much their costs and schedules had been revised, and recommended reporting final costs and establishing written guidance for post-construction assessments. The findings describe that review’s projects and period, not the status of every current GSA project.
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