Design-Build Construction in Tennessee
Design-build is a project delivery method that consolidates design and construction responsibility under a single contract between the owner and one entity. This page covers how that model operates in Tennessee, the regulatory framework governing its use, how it compares to traditional project delivery, and the decision factors that guide owners toward or away from it. Understanding these boundaries matters for any owner, developer, or contractor engaged in Tennessee construction project delivery methods.
Definition and scope
In design-build, a single firm — or a joint venture between a designer and a contractor — holds the prime contract with the project owner and is accountable for both design documents and physical construction. This contrasts directly with the traditional design-bid-build model, in which the owner holds separate contracts with an architect and a general contractor, and the two parties operate largely at arm's length.
Tennessee recognizes design-build as a distinct delivery method under state procurement law. For public projects, the Tennessee Code Annotated (T.C.A.) Title 12, Chapter 4, Part 7 governs alternative project delivery, including design-build, for state agencies and most local government entities (Tennessee General Assembly, T.C.A. §12-4-701 et seq.). Private-sector design-build contracts are governed principally by Tennessee construction contract law and common law of contract, with no state statute mandating a specific form for private agreements.
Scope coverage and limitations: This page addresses Tennessee state law and Tennessee Department of Transportation (TDOT) regulations as they apply to design-build within Tennessee's geographic boundaries. Federal procurement rules (FAR Part 36) govern federally funded projects and are not covered here. Projects in bordering states — Virginia, North Carolina, Georgia, Alabama, Mississippi, Arkansas, Kentucky — are outside this scope. Rules specific to Tennessee municipalities may vary by charter and are not addressed comprehensively.
How it works
Design-build projects in Tennessee typically progress through four sequential phases:
- Owner procurement and qualification. For public projects, the procuring agency issues a Request for Qualifications (RFQ), shortlists firms, then issues a Request for Proposals (RFP). State law requires a competitive selection process. Private owners may negotiate directly.
- Preliminary design and GMP or lump-sum pricing. The design-builder develops bridging documents — often 30% design — and submits a guaranteed maximum price (GMP) or lump-sum bid. This early pricing is the defining financial advantage of the method.
- Concurrent design and construction. Engineering and construction activities overlap. The design-builder coordinates structural, mechanical, electrical, and plumbing (MEP) drawings internally, reducing the coordination gaps common in design-bid-build.
- Permitting, inspection, and closeout. The design-builder is responsible for obtaining all required permits through local building departments and the Tennessee Department of Commerce and Insurance (TDCI), which oversees the State Fire Marshal's office and the building codes program. Inspections follow the same code path as any Tennessee project under Tennessee commercial building codes.
Licensing is a critical compliance point. Tennessee requires that the contractor component of a design-build entity hold an active contractor's license issued by the Tennessee Contractors Licensing Board. Design professionals must hold active licensure through the Tennessee Board of Architectural and Engineering Examiners. See Tennessee construction licensing requirements for the full licensing framework.
Common scenarios
Design-build concentrates in project types where schedule compression and single-point accountability deliver measurable value.
Transportation infrastructure. TDOT has used design-build on highway and bridge projects exceeding $50 million since the early 2000s, accelerating delivery on corridor projects. The agency maintains published design-build procurement guidelines. See Tennessee highway and bridge construction for sector context.
Industrial and manufacturing facilities. Industrial clients — automotive, logistics, advanced manufacturing — frequently mandate design-build because facility programming and construction can overlap. Tennessee's automotive supply-chain corridor along I-65 and I-75 generates significant industrial design-build volume. Tennessee industrial construction covers the sector in broader detail.
Healthcare and institutional buildings. Owners using design-build for hospitals or laboratories gain faster occupancy but must integrate Tennessee Health Department facility review alongside standard TDCI permitting.
Public school and higher education projects. The State Building Commission has approved design-build delivery for University of Tennessee system projects and Tennessee Board of Regents campuses under conditions set in T.C.A. §12-4-701.
Decision boundaries
Owners selecting a delivery method face a structured set of trade-offs. The table below summarizes the primary distinctions between design-build and design-bid-build in the Tennessee context:
| Factor | Design-Build | Design-Bid-Build |
|---|---|---|
| Contract structure | Single contract, one accountable entity | Separate architect and contractor contracts |
| Schedule | Overlapping design/construction phases | Sequential phases; longer total duration |
| Cost certainty | GMP or lump sum established early | Final cost known only after full design |
| Owner design control | Lower; owner defines outcomes, not methods | Higher; owner reviews and approves all design documents |
| Risk allocation | Design-build firm absorbs design errors | Owner bears design errors if architect is liable separately |
| Bid competition | Fewer qualified proposers for complex projects | Broader contractor pool after full design |
Design-build is generally less appropriate when an owner requires granular design control, when the project type lacks precedent allowing early pricing, or when public transparency requirements demand open competitive bidding on fully defined plans. It is generally more appropriate for repetitive facility types, fast-tracked schedules, and projects where the owner has a clear performance specification but is flexible on design solutions.
Safety compliance does not vary by delivery method. Tennessee OSHA requirements under Tennessee OSHA construction regulations apply identically regardless of contract structure. The design-builder bears responsibility for site safety as the controlling employer.
Tennessee construction bonding requirements apply to public design-build contracts at the same thresholds as traditional contracts — performance and payment bonds are required on public contracts exceeding $100,000 under T.C.A. §12-4-201.
References
- Tennessee General Assembly — T.C.A. Title 12, Chapter 4 (Procurement)
- Tennessee Department of Transportation (TDOT) — Design-Build Program
- Tennessee Department of Commerce and Insurance — Construction Related Boards
- Tennessee Contractors Licensing Board
- Tennessee Board of Architectural and Engineering Examiners
- Tennessee State Building Commission
- Design-Build Institute of America (DBIA) — Project Delivery Resources
- Tennessee Code Annotated §12-4-201 — Public Contract Bonds