Design-Build
One contract, one team, responsible for both designing and building the project.
Quick Answer
Design-Build is a project delivery method where the owner contracts with a single entity — the design-builder — for both design and construction, instead of hiring an architect and a contractor separately. It replaces the traditional design-bid-build sequence with one team responsible for both, often letting design and construction phases overlap to compress schedule and unify accountability.
The Full Picture
Traditional design-bid-build separates design and construction into two contracts and creates an inherently sequential, sometimes adversarial dynamic — the owner is caught between the designer (blaming construction) and the contractor (blaming design errors) if something goes wrong. Design-build exists to collapse that split, putting one entity on the hook for both, which aligns incentives and lets the two phases overlap instead of running strictly in sequence.
An owner typically selects a design-builder through a qualifications-based or two-step RFQ/RFP process, sometimes using a progressive design-build structure where the GMP is set later, once design has developed further. The design-builder either has design capability in-house or brings on an architect and engineers as part of its team — sometimes through a design-assist arrangement — but either way, the owner holds one contract for the whole scope.
Because one entity controls both design and construction, work can overlap in ways a strict design-bid-build sequence can't allow — a design-build GC might begin pricing and permitting the foundation package while the upper-floor architecture is still being finalized, compressing the overall schedule without waiting for a fully complete design.
Design-build changes what precon looks like day to day. Instead of estimating against a finished design, the precon team is estimating against a design that's still evolving — often called target-value design — feeding cost feedback back to the design team in real time. Code research and compliance also shift earlier and land more squarely on the design-build team's own precon and design staff, rather than resting solely with an owner's separate architect of record.
Real Examples
Common Misconceptions
People assume: People assume design-build removes the architect from the project.
Actually: the architect is still fully involved — just under contract to (or as part of) the design-builder, rather than directly to the owner as in design-bid-build.
People assume: People assume design-build is automatically faster than other delivery methods.
Actually: the speed advantage comes specifically from overlapping design and construction with unified coordination — a design-build project with unclear GMP timing or poor design-assist coordination can lose that advantage entirely.
Does MeltPlan Solve This?
Partially — adjacentPartially — MeltPlan doesn't select or manage a project's delivery method or contract structure. But design-build shifts building code research and compliance checking earlier and onto the GC's own design-build team, rather than resting solely with a separate architect of record — and that's exactly the workflow MeltPlan's Code product is built for: fast code research and compliance-gap identification so issues don't reach construction.
Research code the way design-build teams do →Frequently Asked Questions
What is design-build in construction?
A project delivery method where the owner contracts with a single entity — the design-builder — for both design and construction, rather than hiring an architect and contractor under two separate agreements.
How is design-build different from design-bid-build?
In design-bid-build, design is completed first, then bid competitively to contractors in a strict sequence. In design-build, one entity holds both scopes, and design and construction can overlap rather than running one after the other.
What is progressive design-build?
A version of design-build where the owner selects the design-builder based on qualifications and approach, then collaboratively develops the design before agreeing on a GMP later in the process, rather than pricing the full scope upfront.
Who does the architect work for in design-build?
The architect is typically under contract to the design-builder (or is part of the design-build entity itself), rather than contracted directly to the owner as in a traditional design-bid-build arrangement.
Why does design-build change preconstruction?
Precon estimating happens against an evolving design rather than a finished one, feeding real-time cost feedback to the design team, and code research and compliance responsibility shifts earlier onto the design-build team itself.