Free AI Commercial Construction Cost Estimator. All 50 States.

Get a Commercial Construction Estimate in 3 Steps

TCG.ai combines artificial intelligence with decades of real-world general contracting experience to deliver fast, data-driven preliminary estimates for any commercial building project in the United States.

How TCG.ai Generates Market-Calibrated Estimates

For the full methodology, read How TCG.ai Delivers Instant, Market-Calibrated Cost Estimates for Any Project Type.

Why Owners and Developers Choose Terrapin Construction Group

Terrapin Construction Group is a nationwide commercial general contractor and design-build firm headquartered in Denver, Colorado, with regional offices in Houston, Albany, and Sheridan. TCG is licensed in all 50 U.S. states and delivers projects through local subcontractor networks with regional market intelligence built into every estimate.

TCG's AI estimator adjusts for regional labor rates, material costs, and local market conditions in real time. Whether your project is a cold storage facility in Texas, a medical office in New York, a cannabis cultivation building in Minnesota, or a warehouse in Colorado, the estimate reflects the actual cost environment for your specific location.

• How much does commercial construction cost per square foot in 2026?

  Commercial construction costs in 2026 range from $150 per square foot for basic warehouse shells to $650+ per square foot for hospitals, data centers, and life sciences labs. Office buildings average $200 to $400 per square foot, QSR restaurants run $375 to $600/SF, medical offices run $300 to $550/SF, and cold storage facilities run $350 to $650/SF. Regional differences add another 25 to 50% swing. Coastal metros carry significant premiums over the South and Mountain West.

• How accurate is the TCG.ai construction cost estimator?

  TCG.ai delivers preliminary budget-level estimates designed for early-stage planning, site selection, and feasibility analysis. The system is calibrated against 50+ years of TCG estimating experience and current 2026 RS Means regional cost indices. While no estimator can produce a final price without complete drawings, TCG.ai gives a reliable cost range to start planning. Every formal proposal is reviewed by a licensed TCG estimator before issuance. See our technical methodology breakdown.

• What information do I need to get a commercial construction estimate?

  At minimum: project location (city and state), approximate building square footage, construction type (ground-up, TI, renovation, addition), and intended building use. Additional detail sharpens accuracy: lot size, number of stories, finish level, timeline, and specialized systems like cold storage refrigeration, commercial kitchen ventilation, or cleanroom HVAC. The TCG.ai estimator accepts free-form descriptions so you can include as much or as little as you have at the current stage.

• When in the development process should I get a construction cost estimate?

  The earlier, the better. The most expensive mistake in commercial development is committing capital to site acquisition, architecture, and engineering before validating that the project's construction cost supports the pro forma. A preliminary estimate should happen during initial feasibility, before an architect is engaged and ideally before a site is under contract. Pair the estimate with our Commercial Construction Loan Qualifier to confirm financing fit, and our State-by-State Permitting Timeline Guide to map the schedule. Once a project moves into schematic design, a formal preconstruction engagement should produce a detailed line-item budget. Design-build delivery embeds this discipline into the process from day one.

• Is the TCG.ai construction cost estimator free?

  Yes. TCG.ai is completely free with no account, login, or credit card required. Describe your project (location, square footage, building type, and intended use) and receive a preliminary cost estimate in under 2 minutes. You can also request a formal proposal from a TCG estimator at no additional charge.

• What types of projects can TCG.ai estimate?

  Office buildings, retail and restaurant buildouts, medical and dental offices, urgent care, hospitals, hotels, warehouses, distribution centers, cold storage and food processing facilities, cannabis cultivation, controlled environment agriculture, data centers, life sciences labs, veterinary clinics, self-storage, multifamily residential, educational buildings, and pre-engineered metal buildings. The estimator also covers TCG's in-house specialty trades: IMP installation, HVAC and equipment procurement, architectural design, design-build delivery, and commercial flooring.

• What factors affect commercial construction costs the most in 2026?

  Five biggest drivers in 2026: (1) Location, where labor and material vary 25 to 50% by metro; (2) Building type and complexity, where hospitals and labs cost 3 to 4x more per SF than warehouses; (3) MEP systems, which are 25 to 40% of total cost; (4) Interior finish level, where basic shell vs. high-end buildout can double the cost per SF; (5) Tariffs and material volatility, where Section 232 tariffs on steel, aluminum, and copper are adding 5 to 15% to material costs, with additional pressure from Strait of Hormuz disruption and extended material lead times. See our full 2026 industry challenges analysis.

• What is the difference between a preliminary estimate and a formal construction bid?

  A preliminary estimate is a cost range based on project parameters, regional data, and historical pricing. It's useful for early planning, feasibility analysis, and supporting loan applications through the construction loan qualifier. A formal construction bid is a fixed-price or guaranteed-maximum-price proposal based on complete construction documents, where a GC has priced every line item with real subcontractor and supplier quotes. The two serve different purposes. Preliminary estimates guide go/no-go decisions; formal bids support financing and contract execution. Learn how to read a commercial GC bid apples to apples, and read our analysis of cost-plus, GMP, and lump-sum delivery methods.

• How do I qualify my commercial construction project for financing?

  Commercial construction financing in 2026 typically requires 65 to 80% loan-to-cost coverage, a stabilized DSCR of 1.20 to 1.35x, and 12 to 24 months of interest reserves built into the budget. Lenders also require a complete sources and uses statement, a hard and soft cost budget, a GC contract, and proof of guarantor financial strength. Use TCG's Commercial Construction Loan Qualifier alongside your TCG.ai estimate to confirm whether your project's cost basis supports current lender terms. For a deeper finance walk-through, see our Finance & Owner Advisory Guide.

• How are tariffs affecting commercial construction estimates in 2026?

  Tariffs are a meaningful cost factor in every 2026 estimate. Section 232 tariffs of up to 50% on steel, aluminum, and copper flow through structural framing, MEP systems, roofing, electrical service, and insulated metal panels. Strait of Hormuz disruption is adding volatility to fuel and shipping costs, and material lead times for transformers, switchgear, and structural steel remain elevated. Material escalation risk is the single biggest reason to engage a GC early. TCG's preconstruction process locks pricing and secures supplier allocation before projects break ground.

• Does Terrapin Construction Group work nationwide?

  Yes. TCG is a nationwide commercial general contractor and design-build firm licensed in all 50 U.S. states, with offices in Denver (CO), Houston (TX), Albany (NY), and Sheridan (WY). The TCG.ai estimator automatically adjusts for local labor rates, material costs, and market conditions for any U.S. metro.

• What is design-build construction?

  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 traditional design-bid-build with 6% less cost growth. TCG's design-build services integrate architecture, engineering, and construction from day one.

• Can a general contractor help me reduce my construction costs?

  Yes, but the window for meaningful cost reduction closes fast. The majority of construction cost is determined by decisions made in the first 20% of the project timeline: structural system selection, MEP design approach, finish specifications, and site strategy. Once construction documents are complete, there's very little a contractor can do to move the number without cutting scope. Early GC engagement is the highest-leverage cost decision an owner can make. Design-build delivery formalizes this from schematic design forward.

• How long does the TCG.ai estimator take to generate a cost estimate?

  Under 2 minutes. After you submit your project description, TCG.ai parses the parameters, looks up regional cost indices for your location, analyzes labor and material conditions, calculates phase-by-phase cost ranges, and returns a detailed preliminary estimate. The full cycle typically completes in 60 to 90 seconds.