One Team. One Contract. Faster, Smarter, Better.
At Terrapin Construction Group (TCG), our design-build services combine architecture, MEP engineering, structural engineering, and construction under a single point of responsibility, delivering 33% faster schedules, 6% lower cost growth, and single-source accountability across all 50 states.
Why Choose Design-Build with TCG?
Design-build is a project delivery method where a single firm handles both architectural design and construction under one contract. According to the Design-Build Institute of America, design-build projects are delivered 33% faster than design-bid-build with 6% lower cost growth, and now account for over half of commercial construction in the United States.
Traditional project delivery separates design from construction, creating handoffs, scope gaps, and cost overruns. In our experience, early GC engagement is critical to project success. Design-build eliminates those problems by integrating architecture, engineering, and construction into a single, accountable team. For the trade-offs, read What Does a Design-Build Contractor Do? and The Importance of Design-Build Construction Trends.
Free Design-Build Planning Tools & Estimators
Plan your design-build project with TCG's free, self-serve tools: instant AI cost estimates, insulated metal panel pricing, permit timelines, loan qualification, and a no-cost review of competing GC bids.
Design-Build vs. Design-Bid-Build: How to Choose
Design-build wins on speed, cost certainty, and accountability. Design-bid-build wins when separate procurement is required (often public projects) or when multiple competitive construction bids on a finished design are mandatory. The DBIA reports design-build delivers 33% faster with 6% less cost growth.
| Factor | Design-Build (DB) | Design-Bid-Build (DBB) |
|---|---|---|
| Schedule | 20-33% faster (overlapping phases) | Sequential, longest path |
| Cost Certainty | Earlier GMP or stipulated sum | Confirmed only after bid |
| Single Point of Contact | Yes, one contract | No, owner manages multiple |
| Change Order Risk | Lower, integrated team | Higher, coordination gaps |
| Specialty Trade Input | Day-1 contractor involvement | Post-bid only |
| Multiple Competitive Bids | Limited, one builder | Yes, bid to multiple GCs |
| Cost Growth (DBIA data) | Lower by 6% | Industry baseline |
| Best Use Case | Speed-driven, specialty, private | Public, design-driven, fully scoped |
For a deeper analysis of delivery methods, read our 2026 guide to cost-plus, GMP, and lump-sum delivery methods.
TCG's Design-Build Process
TCG's design-build delivery integrates every phase into a seamless workflow, from initial concept through final turnover. No handoffs, no scope gaps, no surprises.
Design-Build Cost Benchmarks (2026)
Commercial design-build costs in 2026 range from $150 per square foot for warehouses to $650 or more per square foot for hospitals, data centers, and life sciences labs. Design-build typically costs the same or less than design-bid-build, with 6% lower cost growth across the project lifecycle, according to the DBIA.
| Building Type | 2026 Cost / SF | Why |
|---|---|---|
| Warehouse / Distribution Center | $150-$250 | High repetition, simple envelope, minimal MEP |
| Self-Storage Facility | $45-$95 | Modular, drive-up or climate-controlled |
| Pre-Engineered Metal Building | $80-$200 | Manufacturer engineering offloads structure |
| Office / Tenant Improvement | $200-$400 | VAV HVAC, finish-level variability |
| Retail Center / Strip Mall | $175-$300 | Multiple tenant suites, signage, site work |
| QSR / Restaurant | $250-$500 | Kitchen MEP, drive-thru, brand finishes |
| Cold Storage / Food Processing | $350-$650 | Refrigeration, IMP envelope, USDA / FDA |
| Cannabis Cultivation | $300-$550 | State compliance, HVAC density, dehumidification |
| Medical Office Building | $300-$550 | OSHPD, exam-room programming, medical gas |
| Urgent Care / Walk-In Clinic | $325-$525 | Infection control, imaging, specialty exhaust |
| Data Center | $650-$1,500+ | Power density, redundancy, cooling, security |
| Life Sciences Lab / Cleanroom | $500-$1,200 | cGMP / ISO classifications, validated systems |
| Hospital | $500-$1,000+ | Most stringent code, departmental complexity |
For project-specific pricing, use the TCG.ai estimator or browse our complete 2026 Commercial Construction Costs Guide.
How Long Does Design-Build Take?
Design-build timelines depend on building size and complexity. Tenant improvements run 4 to 6 months total. Mid-size commercial buildings run 8 to 14 months. Specialty facilities run 12 to 22 months. Major hospital and data center projects run 18 to 36 or more months. Design-build typically delivers 20 to 33% faster than design-bid-build at every project size.
| Project Size & Type | Design-Build Total | Design-Bid-Build Total |
|---|---|---|
| Tenant Improvement (5,000-15,000 SF) | 4-6 months | 5-8 months |
| Standard Commercial (15,000-50,000 SF) | 8-14 months | 11-18 months |
| Mid-Size Commercial (50,000-150,000 SF) | 12-22 months | 16-30 months |
| Specialty Facility (150,000+ SF) | 18-30 months | 24-40+ months |
| Hospital / Major Healthcare | 24-36 months | 32-48 months |
| Data Center (hyperscale) | 20-36 months | 28-52 months |
Permitting timelines run in parallel and vary significantly by jurisdiction. See our state-by-state permitting timeline guide for jurisdiction-specific data.
Design-Build Project Portfolio
Click a sector to explore TCG's design-build track record across the country.
Expertise Across Every Commercial Asset Class
TCG's design-build portfolio spans the full spectrum of commercial construction. Our integrated model tailors solutions to the unique code, operational, and performance requirements of each building type.
The TCG Advantage: Smarter, Faster, Leaner
TCG's design-build model eliminates silos, reduces risk, and delivers projects faster with greater cost certainty, backed by national reach, in-house design teams, and trusted engineering partners.
Self-performing capabilities in IMP installation and PEMB erection give us direct control over critical building envelope scopes that most general contractors subcontract out. Combined with commercial roofing, commercial flooring, and equipment procurement, TCG offers a depth of self-performed scope that compresses schedules and reduces coordination risk.
Is your current GC underperforming? Ask us about our Owner's Representative and Construction Management services, designed for owners who need an experienced advocate on their side.
Design-Build, Frequently Asked Questions
Still have questions? Browse below, visit our general FAQ page, or contact TCG directly. Want to talk through your project? Schedule a 30-minute meeting with us.
Design-build is a project delivery method where a single firm handles both architectural design and construction under one contract. According to the Design-Build Institute of America (DBIA), design-build projects are delivered 33% faster than traditional design-bid-build with 6% less cost growth, because design and construction proceed in parallel rather than sequentially. Design-build now accounts for over 50% of commercial construction in the United States.
TCG's design-build scope includes programming and feasibility, architectural and engineering design (architecture, MEP, structural), early cost modeling, permitting, procurement, construction delivery, commissioning, and turnover, all managed under one contract with single-point accountability.
Design-build typically compresses project schedules by 20 to 33% compared to design-bid-build because design and construction phases overlap rather than running sequentially. The DBIA reports design-build is 33% faster overall. TCG's preconstruction planning further accelerates timelines through early procurement of long-lead equipment.
No, design-build typically costs the same or less than traditional design-bid-build. The DBIA reports 6% lower cost growth on design-build projects. The single-contract structure eliminates scope gaps, reduces change orders, and locks in pricing earlier in the process. Design-build owners benefit from earlier GMP, reduced design-construction conflicts, and lower legal and administrative overhead.
Design-build costs vary by building type, location, and complexity. In 2026, commercial design-build runs $150 to $250 per square foot for warehouses, $200 to $400 for offices, $250 to $500 for retail and restaurants, $300 to $550 for medical offices, $350 to $650 for cold storage and food processing, and $650 or more per square foot for hospitals, data centers, and cleanrooms. Geographic adjustments add another 25 to 50% swing between markets. Try our free AI estimator or browse the 2026 commercial construction cost reference.
Yes. TCG's design-build team includes licensed architects, MEP engineers, and structural engineers covering all 50 states, allowing seamless integration of design and construction phases under one contract. TCG also partners with 9BA MEP Engineering and 3rd Act Architecture for specialized scopes.
TCG delivers design-build projects across cold storage, food processing, pharmaceutical cleanrooms, hospitality, retail, industrial, healthcare, urgent care, dental, veterinary, data centers, life sciences laboratories, cannabis cultivation, controlled environment agriculture, self-storage, multifamily, institutional, and adaptive reuse sectors.
Yes. TCG self-performs insulated metal panel (IMP) installation, pre-engineered metal building (PEMB) erection, and controlled-environment equipment installation. Self-performance gives TCG direct control over cost, schedule, and quality on critical building envelope and specialty scopes that most general contractors subcontract out.
Yes. TCG's national subcontractor network allows design-build delivery in secondary markets and rural areas with the same quality standards as major metro projects. TCG is licensed in all 50 U.S. states, with offices in Denver, Houston, Albany, and Sheridan, and project locations in 53 metro markets.
In design-bid-build (DBB), the owner contracts separately with a designer and a general contractor: the design is fully completed, then bid to multiple GCs. This creates handoff gaps, scope conflicts, and a longer schedule. In design-build (DB), one team manages both architecture and construction under a single contract, reducing risk, compressing schedules by 20 to 33%, and producing fewer change orders. DBB remains preferable for publicly funded projects requiring separate procurement; DB is preferred when speed, budget certainty, and specialty trade input matter.
Choose design-build when speed matters, when budget certainty is the priority, when you want a single point of accountability, when the project involves specialty trades that benefit from early contractor input (IMP installation, cold storage envelopes, cleanroom HVAC, mission-critical power), or when the project is privately funded and the owner has flexibility in procurement method. Design-bid-build is better when separate procurement is required (often public projects) or when multiple competitive bids are mandatory on a finished design.
Design-build timelines depend on building size and complexity. A 5,000 to 15,000 SF tenant improvement runs 4 to 6 months total (design plus construction). A 15,000 to 50,000 SF ground-up commercial building runs 8 to 14 months. A 50,000 to 150,000 SF specialty facility runs 12 to 22 months. A 150,000+ SF complex facility (hospital, data center, food processing) runs 18 to 36 or more months. Design-build typically delivers 20 to 33% faster than design-bid-build at every project size.
TCG integrates architectural design, MEP engineering, structural engineering, and construction under one contract with AI-powered cost estimating. Self-performing capabilities in IMP installation and PEMB erection give TCG direct control over building envelope scopes that most GCs subcontract out. Combined with commercial roofing, commercial flooring, and equipment procurement self-performance, TCG offers a depth of integrated capability that compresses schedules and reduces coordination risk.
TCG offers a free AI-powered construction cost estimator that returns a preliminary budget in under two minutes at the TCG.ai estimator. Describe your project (building type, location, square footage, and intended use) and the system returns a detailed cost range based on 2026 RS Means data and TCG's nationwide project database. Every AI estimate is reviewed by a TCG estimator before any formal proposal is issued.
Yes. TCG offers several free tools for owners and developers: the AI construction estimator for instant budgetary ranges, the IMP cost estimator for insulated metal panel supply and install pricing, a permitting timeline tool, a construction loan qualifier, and a free bid review that flags risk in competing GC proposals.
Pillar Guides and Construction Cost References
Start with the master commercial construction cost reference, then dig into the specialty pillars and cost-per-square-foot guides that map to TCG's core building types.
Explore TCG's Full Construction Platform
TCG's design-build services connect to a full platform of related construction service lines under a single contract, eliminating the coordination, markup, and schedule risk of multi-firm delivery.
Related Reading from the TCG Library
Explore additional design-build guides, delivery-method analysis, and cost benchmarks from the TCG editorial library.
Design-Build Services Coast to Coast, All 50 States
TCG delivers design-build construction from offices in Denver, Houston, Albany, and Sheridan, with active project coverage in Atlanta, Charlotte, Chicago, Columbus, Dallas, Jacksonville, Louisville, Miami, Nashville, Oklahoma City, Orlando, Phoenix, Raleigh, Richmond, Tampa, and Salt Lake City. See the full 53-market directory on our commercial general contractor page.
Design smart. Build better. Go further, with TCG.
Ready to Start Your Design-Build Project?
With 100+ projects delivered across all 50 states, TCG is the nationwide design-build partner you can trust for schedule certainty, cost control, and single-source accountability. Get a free AI cost estimate or schedule a 30-minute consultation.