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?
Traditional project delivery separates design from construction — creating handoffs, scope gaps, and cost overruns. From our experience, early GC engagement is critical to project success. Design-build eliminates those challenges by integrating architecture, engineering, and construction into a single, accountable team. For more on the trade-offs, read What Does a Design-Build Contractor Do? and The Importance of Design-Build Construction Trends.
Design-Build vs. Design-Bid-Build: How to Choose
| Factor | Design-Build (DB) | Design-Bid-Build (DBB) |
|---|---|---|
| Schedule | 20–33% faster (overlapping phases) | Sequential; longest path |
| Cost Certainty | Earlier GMP / 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)
| 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?
| 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 AHJ-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 allows us to tailor solutions to the unique code, operational, and performance requirements of each building type.
The TCG Advantage — Smarter, Faster, Leaner
Our design-build model eliminates silos, reduces risk, and delivers projects faster with greater cost certainty. Backed by our national reach, in-house design teams, and trusted engineering partners, TCG ensures your project is built to last while saving you time and money.
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 Rep and Construction Management services — designed for owners who need an experienced advocate on their side.
TCG’s Commercial Construction Resource Library
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 meeting with us now.
Design-build is a project delivery method where a single firm handles both architectural design and construction under one contract. According to the DBIA, design-build projects are delivered 33% faster than design-bid-build with 6% lower cost growth. 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, 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 20–33% 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. 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. Design-build owners benefit from earlier GMP, fewer design-construction conflicts, and lower legal and administrative overhead.
Design-build costs vary by building type, location, and complexity. In 2026: warehouses run $150–$250/SF, offices $200–$400/SF, retail and restaurants $250–$500/SF, medical offices $300–$550/SF, cold storage and food processing $350–$650/SF, and hospitals, data centers, and cleanrooms $650+/SF. Geographic adjustments add another 25–50% swing. Use our free AI estimator for project-specific pricing.
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, data centers, 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 scopes that most GCs subcontract out.
In design-bid-build (DBB), the owner contracts separately with a designer and a general contractor, creating handoff gaps and potential scope conflicts. In design-build (DB), one team manages both architecture and construction under a single contract, reducing risk and compressing schedules by 20–33%. 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.
5,000–15,000 SF tenant improvements: 4–6 months. 15,000–50,000 SF ground-up commercial: 8–14 months. 50,000–150,000 SF specialty: 12–22 months. 150,000+ SF complex (hospitals, data centers): 18–36+ months. Design-build typically delivers 20–33% 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. Our self-performing IMP and PEMB capabilities give us direct control over building envelope scopes that most GCs subcontract out.
TCG offers a free AI-powered construction cost estimator that returns a preliminary budget in under 2 minutes at /instant-estimator-ai-1. Describe your project and receive 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.
Explore TCG's Full Construction Platform
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, Birmingham, Tampa, and Salt Lake City.
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.
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