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. 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.

• Can I upload plans or drawings to the TCG.ai estimator?

  Yes. TCG.ai accepts plan sets, floor plans, site plans, elevations and sketches in PDF, PNG or JPG, up to 4 files and 22 MB total. Uploaded drawings are read directly by the estimating engine, which sharpens the takeoff considerably over a text description alone, and the same files are routed to a TCG estimator for the formal proposal. For plan sets larger than 22 MB, schedule a 30-minute consultation and we will set up a file transfer.

• Why does the estimator ask for my budget range and start date?

  Both materially change the estimate. Budget range tells the estimating engine what finish level and structural approach are realistic, so the output reflects a buildable scope rather than a generic benchmark. Target start date drives material escalation, procurement lead times for transformers, switchgear and structural steel, and subcontractor availability in your market. An estimate produced without either is a national average, not a project budget.

• What is the difference between the TCG VE Option and the Market Average?

  Market Average is what a typical qualified general contractor in your market charges for the same scope under conventional design-bid-build delivery. The TCG VE Option is what Terrapin Construction Group delivers the same functional building for through single-contract design-build, self-performed insulated metal panel and pre-engineered metal building work, and direct manufacturer procurement that removes a subcontractor tier. Both figures are hard construction cost. Soft costs are stated separately and are not included in either number.

• 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.

• 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 more than 50 years of combined partner estimating experience and current 2026 RS Means regional cost indices. Uploading plans improves accuracy substantially over a text description. 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?

  Four things are required: a project description including location, an approximate building square footage range, a construction budget range, and a target start date. Additional detail sharpens accuracy: lot size, number of stories, finish level, and specialized systems like cold storage refrigeration, commercial kitchen ventilation, or cleanroom HVAC. Uploading plans or a site plan is optional but produces the sharpest result.

• 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 and our State-by-State Permitting Timeline Guide. Once a project moves into schematic design, a formal preconstruction engagement should produce a detailed line-item budget.

• 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, select your size, budget and timeline, optionally upload plans, 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, 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. 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. For a deeper walk-through, see our Finance & Owner Advisory Guide.

• 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, headquartered in Denver, CO. 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.

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

  Under 2 minutes for a text description. Uploading plans adds time because the drawings are read page by page, so a plan-based estimate typically completes in 60 to 110 seconds.