Preconstruction Services
TCG.ai
Preconstruction Cost Estimator
Describe your project and get a preliminary preconstruction cost estimate powered by TCG.ai — the same engine behind our general construction estimator.
Analyzing Your Project
Our AI engine is reviewing current market data, CSI divisions, and regional labor rates…
What Is Commercial Preconstruction?
Decisions made in the first 20% of a project timeline determine roughly 80% of total project cost. Engaging a general contractor early through preconstruction typically reduces hard cost growth by 8–15% versus owners who skip the phase or run it informally. For a deeper read, see Why Early GC Engagement Is Critical to Project Success and What Does a Design-Build Contractor Do?.
Cost Opinions — Accuracy at Every Design Milestone
TCG delivers progressive cost opinions tied directly to design development. Each estimate evolves with design detail, giving owners and lenders confidence as scope and systems are defined:
Estimates are presented in CSI division format, ensuring clarity across all building systems.
Preconstruction Fee Benchmarks (2026)
| Project Type | Typical Precon Fee | Why |
|---|---|---|
| Warehouse / Distribution Center | 0.3–0.6% | Repetitive program, simple envelope, minimal MEP |
| Self-Storage Facility | 0.4–0.7% | Modular layout, prototype delivery |
| QSR / Coffee Shop (prototype) | 0.5–0.9% | Brand prototype with site-specific adjustments |
| Office / Tenant Improvement | 0.6–1.0% | Programming complexity, finish-level decisions |
| Retail Center / Strip Mall | 0.6–1.0% | Multiple tenant suites, site work, signage |
| Cold Storage / Food Processing | 1.0–1.6% | Refrigeration, USDA / FDA compliance, IMP envelope |
| Cannabis Cultivation | 1.0–1.8% | State compliance, HVAC density, specialty equipment |
| Medical Office Building | 1.2–1.8% | OSHPD/HCAI, exam-room programming, medical gas |
| Data Center | 1.5–2.5% | Power density, redundancy, security, cooling |
| Life Sciences Lab / Cleanroom | 1.5–2.5% | cGMP / ISO classifications, validated systems |
| Hospital | 1.5–2.5% | Most stringent code, departmental complexity |
For total A&E + soft cost benchmarks, see our 2026 A&E fee & soft cost guide. For overall construction costs by building type, see our Commercial Construction Costs Guide.
When to Engage Preconstruction
CSI Division Breakdown
Our cost opinions cover all major CSI MasterFormat divisions:
Construction Cost Deliverables
Our deliverables include a detailed breakout of hard construction costs by major category, with line items for general conditions, contingency, bonds, insurance, and contractor fee. TCG structures budgets to support both Guaranteed Maximum Price (GMP) and Cost-Plus contracts — aligning contract models with your financing strategy, risk profile, and project goals. Learn more about our design-build delivery, general contracting, and construction management approaches. For a deeper analysis of contract types, see our 2026 guide to cost-plus, GMP, and lump-sum delivery methods.
Owner-Provided Equipment & Systems
Many projects include owner-furnished items such as specialized equipment, IT infrastructure, or furnishings. While owners may procure directly, TCG's procurement strength and vendor relationships often result in better-than-direct pricing on items like HVAC equipment, insulated metal panels, and specialty systems. We can either install owner-furnished items or manage procurement end-to-end, reducing risk and maximizing value.
Soft Cost Management
Our preconstruction team also tracks and manages soft costs, ensuring total visibility into all project expenses. Total soft costs typically run 15–25% of construction cost:
Total Project Cost — The Full Picture
We provide owners and lenders with a comprehensive roll-up of all costs: hard construction, owner-provided equipment, and soft costs. Budgets clearly highlight controllable vs. uncontrollable costs, escalation risks, and scope allowances — eliminating surprises during construction and enabling reliable capital planning. For lender-facing budget structures, see our Finance & Owner Advisory Guide.
Assumptions & Clarifications
Every cost opinion includes clear assumptions on scope, escalation factors, site conditions, and utility availability. These clarifications define accuracy, highlight risks, and ensure all stakeholders share a common baseline. In 2026, escalation assumptions also account for tariff exposure on steel, aluminum, and copper — see our analysis of 2026 commercial construction industry challenges and material lead times.
Value Engineering Options
We take a proactive, impartial approach to Value Engineering (VE). Our recommendations are vendor-agnostic and supported by cost-benefit analysis, giving owners clarity on the cost, schedule, and performance impact of each option. Examples include:
Schedule Development
As design advances, TCG develops increasingly detailed project schedules:
This ensures transparency, predictability, and accountability throughout preconstruction.
Owner's Advocacy
By engaging TCG for preconstruction, owners gain more than estimating and scheduling — they gain a trusted partner and advocate. Our leadership team acts as an extension of ownership, providing oversight, vendor coordination, and strategic guidance to protect budget, schedule, and operational goals at every step. Whether your project requires general contracting, design-build, or construction management, TCG's preconstruction foundation sets the stage for success.
Case Study Highlights
Click a sector below to explore TCG's preconstruction and project portfolio across the country.
Plan With Confidence — TCG’s Resource Library
The most comprehensive 2026 cost and process guides in U.S. commercial construction:
One Partner. Every Phase. Coast to Coast.
At TCG, we simplify the complex. As your nationwide commercial design-build partner, we offer a seamless, start-to-finish solution that unites architecture, engineering, and construction under one roof. From concept to completion, we deliver speed, efficiency, and quality that traditional build models can't match. Our experienced team collaborates closely with you to turn vision into reality — on time, on budget, and with zero handoffs.
Design smart. Build better. Go further — with TCG.
Frequently Asked Questions
Still have questions? Visit our general FAQ page or contact TCG. Want to talk through your project? Schedule a meeting with us now.
The planning phase before construction begins. Includes programming, cost estimating, schedule development, value engineering, constructability reviews, permitting strategy, and early procurement of long-lead equipment.
Typically 0.5%–2% of construction cost. Simple projects: 0.3–0.8%. Mid-complexity: 0.8–1.5%. Complex (hospitals, data centers, labs): 1.5–2.5%. Often credited back to the construction contract when the GC is awarded the build.
Decisions in the first 20% of a project timeline determine 80% of total cost. Engaging a GC early through preconstruction typically reduces hard cost growth by 8–15% versus owners who skip the phase. See why early GC engagement matters.
Best: pre-feasibility, before site is under contract. Latest useful: Design Development. Engaging after 100% CD limits precon to estimating only and forfeits most VE opportunity.
Fees vary by project complexity. In many cases, precon costs are credited back against the construction contract when TCG is awarded the full build.
Precon happens before construction begins (planning, estimating, scheduling). Construction management is active oversight during construction (subcontractor coordination, RFI management, schedule control). TCG's precon team typically transitions seamlessly into CM.
All major divisions: 02 Sitework, 03 Concrete, 04 Masonry, 05 Metals, 06 Wood/Plastics, 07 Thermal/Moisture, 08 Openings, 09 Finishes, 10 Specialties, 11 Equipment, 12 Furnishings, 13 Specialty, 14 Conveying, and 21–28 Fire/Plumbing/HVAC/Electrical/Communications.
Identifying alternative materials, systems, or methods that reduce cost or improve performance without sacrificing function or quality. TCG's VE recommendations are vendor-agnostic with cost-benefit analysis.
Small TI: 2–4 weeks. Mid-size commercial: 6–12 weeks. Complex (hospitals, data centers): 16–26 weeks. Always runs parallel with design — doesn't extend overall project timeline.
A&E fees (5–15%), civil/survey ($5K–$50K), geotechnical ($5K–$25K), environmental, permits (0.5–2%), legal/financing (1–3%), CM/owner's rep (2–5%), FF&E. Total soft costs typically 15–25% of construction cost.
Yes — TCG provides preconstruction in all 50 U.S. states, with offices in Denver, Houston, Albany, and Sheridan. Regional cost adjustments built into every cost opinion.
Use the AI estimator above, schedule a call via Calendly, or email info@terrapincg.com. TCG typically returns a precon service proposal within 3 business days.