The Construction Project Lifecycle: Bid to Closeout

Project delivery methods move these phases around (design-build overlaps design and construction; construction manager at risk brings the builder in during design), but the work in each phase is the same. The table is the map; each section below takes one phase and links the guides for it.

Every project starts with the owner: what is needed, where, by when, and for how much. The owner chooses the delivery method (design-bid-build, construction manager at risk, design-build), which decides when the builder joins and who holds the design risk, and hires the architect, and on negotiated work, the builder. Owners: see the owner solutions page.

The delivery method decides who carries what. In design-bid-build, the owner holds separate contracts with the designer and the builder, and builders price a finished design. In construction manager at risk, the builder joins during design to advise on cost and schedule, then contracts to build, often for a guaranteed maximum price. In design-build, one contract covers both design and construction. Whatever the method, the owner sets the budget, including a contingency for changes, and secures the site, the financing and the approvals only an owner can get.

The design team turns the program into drawings and specifications in stages. The AIA's standard owner–architect agreement divides the architect's basic services into five phases: "Schematic Design, Design Development, Construction Documents, Procurement, and Construction" (AIA B101-2017 summary). Each design stage ends with an owner approval and, ideally, a cost check, because every later change costs more than the one before it.

The construction documents (drawings, specifications and the contract forms) are what everyone else will bid on, build from and argue about. Architects and engineers: see the design team solutions page.

In bidding, general contractors price the construction documents, and to do it they break the work into trade packages and get bids from subcontractors. The architect answers questions and issues addenda so every bidder prices the same thing. The GC compares sub bids on the same scope before it carries a number, then the owner awards the contract.

Guides: how to level subcontractor bids and every bidding article. Subcontractors bidding to GCs: start with the subcontractor's guide.

After the award, the GC buys out the job: it awards each trade and signs subcontracts that match the leveled scope, and the budget becomes commitments. It builds the submittal register and the schedule, collects insurance and compliance documents, and subs submit their product data and shop drawings for approval before they buy. This is also when the closeout list should be written into every subcontract. The whole GC side of it is in the general contractor's guide, and every piece on this phase, from the schedule of values to the submittal log and buyout, is in the preconstruction guides.

Construction is the longest phase and the one with the most records. Questions go in RFIs, product approvals in submittals, the day's work in daily logs, and every change of scope, price or time in a change order. Each month subs bill the GC, the GC bills the owner, the architect certifies the payment, and the owner pays, less retainage.

• Questions and answers: how to write an RFI, and every construction article.
• Changes: how to price a change order.
• Billing: how a subcontractor fills out a pay application and how to calculate retainage, with every money article.

Closeout begins before the building is finished. The GC punches each area as it completes; when the work is ready, the architect inspects for substantial completion, which AIA A201-2017 Section 9.8.1 defines as the stage when the work is "sufficiently complete in accordance with the Contract Documents so that the Owner can occupy or utilize the Work for its intended use" (AIA Contract Documents). The certificate records the date, attaches the punch list, and on AIA documents starts the warranties unless it says otherwise (AIA's G704 summary). Public owners run the same steps; Alaska DOT&PF's construction manual moves from a preliminary punch list to a final inspection to a letter of project completion.

Then the punch list closes, the GC delivers the closeout package (record drawings, O&M manuals, warranties, attic stock, training, test reports, final lien waivers), and the owner makes final payment. On federal fixed-price construction, withheld retainage beyond what the contracting officer considers adequate protection is released at substantial completion, and final payment follows "completion and acceptance of all work" and a release of claims (FAR 52.232-5); private contracts set their own terms.

• For GCs: how to build a punch list, the free punch list template and how to assemble a closeout package.
• For architects: how an architect decides substantial completion.
• For owners: what an owner should get at closeout.
• Every closeout article.

The job is not over at final payment. The contractor's general warranty runs, commonly for one year: on federal construction, one year from final acceptance (FAR 52.246-21); on AIA documents, usually from substantial completion. Manufacturers' and specialty warranties, such as roofing, run longer. Owners should walk the building before the general warranty ends; GCs and subs should answer warranty calls promptly, because the warranty period is the last part of the job the owner remembers.

Conflo is one platform for the phases after design: bidding, preconstruction, construction, financials and closeout, with the GC, subs, the owner and the design team on the same project, each seeing what their role allows. It is built for commercial construction today. Subcontractors, owners and architects join free; see pricing.

Every construction project runs the same phases, from the owner's first decision to the last warranty call, and each party has its own job in each one. The handoffs between phases are where time and money are lost.

Find your seat in the role guides below this page and follow the phase you are in.

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1. Summary: B101–2017, Standard Form of Agreement Between Owner and Architect — AIA Contract Documents (The American Institute of Architects). Read October 16, 2026.
2. The Construction Schedule – Substantial Completion Considerations — AIA Contract Documents (The American Institute of Architects). Read October 16, 2026.
3. Summary: G704–2017, Certificate of Substantial Completion — AIA Contract Documents (The American Institute of Architects). Read October 16, 2026.
4. Alaska Construction Manual, Chapter 15: Final Field Construction Activities — Alaska Department of Transportation & Public Facilities. Read October 16, 2026.
5. FAR 52.232-5, Payments under Fixed-Price Construction Contracts — Acquisition.gov, U.S. General Services Administration. Read October 16, 2026.
6. FAR 52.246-21, Warranty of Construction — Acquisition.gov, U.S. General Services Administration. Read October 16, 2026.