Boston Commercial General Contractor & Design-Build
Terrapin Construction Group is Boston's integrated design-build general contractor — delivering commercial construction across Greater Boston, New England, and 38 states with in-house architecture, engineering, preconstruction, and self-performing specialty trades.
Boston Construction Cost Estimator
Describe your Greater Boston project and get a preliminary cost estimate powered by TCG.ai — free, instant, and calibrated to Massachusetts market pricing.
Tell Us About Your Boston Project
Include details about building type, size, location in Greater Boston, special requirements, and timeline. Our AI applies Boston-specific cost indices, union labor rates, and biotech requirements automatically.
Analyzing Your Boston Project
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Your Boston Construction Cost Estimate
Boston's Integrated Design-Build General Contractor
Terrapin Construction Group serves Greater Boston from 50 Milk St, 16th Floor, Boston, MA 02109 as an integrated commercial general contractor operating across 38 states. We bring national-scale resources and deep construction expertise to every project in New England — from the Financial District, Back Bay, and the Seaport to Cambridge, Somerville, Brookline, Newton, Waltham, and the I-95/I-495 corridors.
What makes TCG different from other Boston general contractors is our fully integrated model. We provide in-house architectural design, structural engineering, MEP engineering, preconstruction, and construction management under one design-build contract. We self-perform IMP installation, PEMB erection, commercial roofing, commercial flooring, and equipment procurement.
Our team understands the Boston subcontractor market — one of the strongest union labor markets in the country — and the unique challenges of building in New England, from Kendall Square being the #1 biotech cluster in the world (Moderna, Pfizer, Novartis, Sanofi, Vertex) driving specialized lab and pharma construction, to harsh New England winters (48” frost depth, heated enclosures, ground thawing), historic preservation requirements, City of Boston ISD permitting (6–18 weeks), and the world-class healthcare ecosystem anchored by Mass General Brigham, Dana-Farber, Beth Israel, and Boston Children's.
What We Deliver in Boston
Design-Build
Single-source design-build — architecture, engineering, and construction under one contract. 15–30% faster.
General Contracting
Competitive general contracting from client-provided plans across Greater Boston.
Preconstruction
Preconstruction with Boston-specific cost data, union labor rates, biotech lab requirements, and cold-weather planning.
Architecture & Engineering
In-house architecture, structural, and MEP engineering — designed for New England's climate and biotech demands.
Construction Management
CM-at-Risk, CM Agency, and owner's representative services.
Self-Performing Specialties
IMP, PEMB, roofing, flooring, and equipment procurement.
TCG Construction Services in Boston
Every service TCG offers is available across Greater Boston and New England.
IMP Installation, Commercial Roofing, PEMB & Flooring in Boston
TCG self-performs critical scopes in the Boston market — giving us direct control over cost, quality, and schedule.
Insulated Metal Panel (IMP) Installation — Over 1,000,000 SF installed across 38 states. New England's harsh winters make IMP's continuous insulation among the most valuable envelope investments in the country for cold storage, data centers, manufacturing, and cleanroom/lab environments. Use our IMP cost estimator.
Commercial Roofing — New England's heavy snow loads, nor’easters, ice damming, and freeze-thaw cycles demand the most robust roofing systems. TPO, EPDM, modified bitumen, standing seam metal, and built-up roofing across Greater Boston. Snow load design and ice dam prevention are essential.
Pre-Engineered Metal Buildings (PEMB) — Cost-effective for warehouses, distribution, manufacturing, and self storage along the I-495 and I-95 corridors. PEMBs require enhanced snow load design for Massachusetts.
Commercial Flooring — Polished concrete, epoxy, resinous, VCT, LVT, carpet tile, and specialty systems. Critical for Boston's world-class biotech market (cleanroom and ESD for Moderna, Pfizer, Vertex), healthcare (infection control), warehouses, and restaurants.
What We Build in Boston & New England
TCG builds across every commercial sector in Greater Boston and New England.
How Much Does Commercial Construction Cost in Boston?
Boston carries a regional cost multiplier of approximately 1.15–1.35x versus the national average, driven by union labor (among the highest rates in the nation), prevailing wage requirements, harsh winter construction costs (heated enclosures add 10–20% to winter scopes), and intense biotech and healthcare demand competing for limited trade capacity. Boston is more expensive than Philadelphia (1.08–1.25x) and Washington DC (1.10–1.25x), comparable to Seattle (1.12–1.28x), and more affordable than New York (1.35–1.80x).
Boston construction costs by type: Warehouses $105–$210/SF. Offices $190–$460/SF. Restaurants $235–$500/SF. Medical $250–$600/SF. Data centers $370–$1,550/SF. Manufacturing $120–$600/SF. Cold storage $150–$360/SF. Biotech lab TI $350–$750/SF.
Key Boston-specific cost factors include union labor (standard on most commercial), 48-inch frost depth, harsh winters (heated enclosures, winter admixtures, ground thawing adding 10–20%), biotech/pharma demand (specialized lab premium), historic preservation requirements, and City of Boston ISD permitting (6–18 weeks). Use our AI estimator above, or schedule a meeting with our preconstruction team.
Boston Commercial Construction FAQ
Common questions about building in Greater Boston. Visit our full FAQ page for 70+ questions.
Boston costs range from $105–$210/SF for warehouses to $370–$1,550/SF for data centers. Biotech lab TI runs $350–$750/SF. Multiplier is 1.15–1.35x. Use our AI estimator.
Yes — 50 Milk St, 16th Floor, Boston, MA 02109. HQ in Denver, plus offices in New York, Philadelphia, Albany, and 18 additional cities.
All sectors: warehouses, restaurants, healthcare, manufacturing, biotech labs, veterinary, self storage, data centers, TI, cannabis, and adaptive reuse.
Greater Boston is one of the strongest union markets in the country. Most commercial construction requires union labor. MA requires prevailing wages on public works. Union rates are among the highest in the nation.
Boston/Cambridge is the #1 biotech cluster in the world. Kendall Square is the global epicenter — Moderna, Pfizer, Novartis, Sanofi, Takeda, Vertex, and hundreds of biotechs. TCG delivers lab and cleanroom construction with in-house MEP engineering for pharmaceutical-grade HVAC.
Harsh winters with sub-zero temps, 48” snowfall avg, and 48” frost depth. Heated enclosures for concrete/masonry, winter admixtures, and ground thawing add 10–20% to winter scopes. Short building season makes design-build schedule compression critical.
Design-build — 15–30% faster, one contract, fewer change orders. In Boston's high-cost union market with harsh winters, every week saved avoids significant labor costs and winter construction premiums.
TI: 2–7 mo. Restaurant: 4–9 mo. Office: 8–16 mo. Warehouse: 6–13 mo. Medical: 10–22 mo. ISD permitting adds 6–18 weeks. Winter adds 3–6 weeks.
Yes — IMP installation with 1,000,000+ SF across 38 states. New England winters make IMP's thermal performance especially valuable. IMP estimator for pricing.
Yes — Commercial roofing across Greater Boston. Snow loads, nor’easters, ice damming, and freeze-thaw demand the most robust systems.
Yes — extensive historic stock. Adaptive reuse in the Seaport, South Boston, Somerville, and along I-93 is a major segment. TCG provides in-house architecture and structural engineering.
No. In-house architecture, structural, and MEP. Also bid from existing plans. Try our Boston AI estimator.
All of Greater Boston — Financial District, Back Bay, South End, Seaport, Fenway, Charlestown, East Boston, Cambridge, Somerville, Brookline, Newton, Quincy, Waltham, Framingham, Burlington, Dedham, and throughout New England including Worcester, Springfield, Providence RI, and Manchester NH.
Let's Build in Boston
From Kendall Square to the Seaport, from biotech labs to restaurants — TCG is Boston's integrated design-build general contractor.
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