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What is design-build?

Design-build is a project delivery method in which one entity provides design and construction under a single contract with the owner.

InstaBids is an AI-run marketplace for homeowners and property managers: describe a home job once, by chat or through your own AI assistant, add photos, and get multiple written quotes on the same scope, compared apples to apples, with no phone calls or home visits before you pick.

By InstaBids editorial team with AI research agents. Updated

InstaBids assistantAI · builds your written scope with you

What design-build job do you need done in your home? Describe it once to start your written scope.

Start from a common job
You choose who gets your number
Or send it from your own AIChatGPTClaudeGrokGeminiMore ways
  1. Describe it onceBy chat, or through your own AI assistant, and add photos.
  2. Post it and send itContractors bid in writing on that scope.
  3. Compare line by lineEvery quote is written against the same scope.
  4. You chooseContact details stay hidden until you pick and they confirm.
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MCP connector · REST API · plain HTML

Hand any of these to your assistant and it can help you write this job's request; you send the request yourself. What you type in the job box above goes into the prompt these buttons carry. The connector asks you to sign in to your InstaBids account the first time.

  • MCP connector URLhttps://instabids.ai/api/agent/mcp
  • Agent API (OpenAPI)https://instabids.ai/openapi.json
  • Start-request linkhttps://instabids.ai/intake?from=glossary-design-build&page_type=glossary&job=Plan+a+home+design-build+project&utm_source=us&utm_medium=page&utm_campaign=glossary
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What are the advantages of design-build for an owner?

DBIA describes successful design-build as design and construction participants thinking and acting as a single entity. “In successful design-build projects, everyone makes the mental shift to think and act as a single entity.” Source: Design-Build Institute of America (DBIA), read 2026-10-31.

What is a design-build contract according to DBIA?

DBIA defines design-build through one contract covering both design and construction, which makes the contract structure central to the term. “The single contract for both design and construction is the fundamental difference between design-build and other project delivery systems.” Source: Design-Build Institute of America (DBIA), read 2026-10-31.

Do design-build or construction management at-risk projects preclude participation of small firms?

The Water Collaborative Delivery Association says smaller firms can participate through partnerships in design-build projects; this answer comes from its water-sector guidance. “In many cases, smaller firms can partner with other firms to complete a project.” Source: Water Collaborative Delivery Association, read 2026-10-31.

What is progressive design-build?

DBIA’s Document 544 describes progressive design-build as a two-phase delivery method, with preliminary design in the first phase. “Progressive Design-Build allows an Owner to complete a Design-Build project in two phases.” Source: Design-Build Institute of America (DBIA), read 2026-10-31.

How involved will I be in the process?

DBIA says the owner stays engaged in design-build and makes timely decisions during the project, despite having one point of responsibility. “In fact, the Owner is expected to be fully engaged to make timely decisions.” Source: Design-Build Institute of America (DBIA), read 2026-10-31.

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