Every commercial buildout conversation eventually comes down to one question: what’s this actually going to cost per square foot. Commercial construction costs in Houston range from $50 per square foot for a basic retail buildout to $300+ per square foot for a full-service restaurant or specialty medical space, and the gap between those numbers has almost everything to do with mechanical, electrical, and plumbing complexity rather than square footage alone. Before you can have a useful conversation with a contractor, it helps to know where your project actually falls on that spectrum — and what’s included in the number once you get a quote.
Commercial construction costs in Houston in 2026 range from $50 per square foot for basic retail to $300+ per square foot for full-service restaurant or specialty medical space. The most common tenant improvement projects — office, retail, and medical — run $70–$160 per square foot depending on finish level, MEP complexity, and starting shell condition. SMB Group LLC, an architect-owned design-build firm in Cypress, TX, provides scope-based estimates for commercial projects across the Houston metro.
Why Commercial Construction Costs Vary So Much (And How to Read the Numbers)
Commercial construction cost per square foot varies primarily by sector, not by project size — a 1,500-square-foot restaurant will cost more per square foot to build out than a 5,000-square-foot office, because kitchen ventilation, grease traps, and health department requirements drive cost far more than raw floor area does.
When you see a construction cost range online, the important question is what’s included: hard construction costs alone, or hard costs plus design, permitting, and fees. A number without that context isn’t useful for budgeting, which is why sector-specific ranges matter more than a single blended average.
Commercial Construction Cost Per Square Foot by Sector — Houston 2026
Here’s how commercial construction cost breaks down by sector across the Houston metro:
- Basic retail (vanilla shell): $50–$80/sqft
- Office buildout: $60–$110/sqft
- Medical office: $80–$180/sqft
- School or daycare: $80–$150/sqft
- Optical clinic: $90–$160/sqft
- Religious space: $90–$160/sqft
- Jewelry store: $100–$180/sqft
- Restaurant (full-service): $150–$300/sqft
Medical, restaurant, and specialty retail sectors sit at the higher end because of plumbing, ventilation, and equipment-specific infrastructure that a basic office or retail shell simply doesn’t require. If you’re planning a medical office buildout in Cypress or Houston, for example, expect the ADA compliance and exam room plumbing requirements to be a meaningful part of that per-square-foot number.
Hard Costs vs. Soft Costs: What Each Number Includes
Hard costs cover the physical construction — framing, MEP, finishes, fixtures — and are what most per-square-foot figures represent. Soft costs cover design, permitting, engineering, and fees, and typically run 15–20% of hard costs on top of the construction number.
A quote that only reflects hard costs will understate your true budget by a meaningful margin. This is one reason a design-build proposal, where design and construction fees are integrated into a single scope, is often easier to budget against than piecing together separate architect and contractor quotes.
How Shell Condition Affects Your Total Budget
The condition of the space you’re leasing has a direct effect on cost. A vanilla shell — finished walls, basic electrical, ready for tenant improvement — starts your project further along than a grey shell, which is essentially a concrete floor and exterior walls with none of the interior infrastructure in place. Grey shell buildouts typically add $20–$40 per square foot compared to a vanilla shell for the same finished result, because MEP rough-in has to happen from scratch.
Before signing a lease, it’s worth having your contractor walk the space with you — the difference between a vanilla shell and a grey shell can shift your total budget by tens of thousands of dollars on a mid-size commercial space, and that’s a conversation better had before the lease is signed than after.
What Drives Costs Up — And What Brings Them Down
Costs climb fastest around MEP complexity — plumbing fixture count, HVAC tonnage, electrical service upgrades — and around code-driven requirements specific to a sector, like ADA compliance in medical offices or hood ventilation and grease trap installation in restaurants. Custom millwork, specialty lighting, and higher-end finish selections also add cost predictably in proportion to how much of the space they cover.
On the other side, costs come down through value engineering — finding equivalent materials or approaches that meet code and design intent at a lower price point — and through fewer change orders during construction, which is where a design-build model tends to outperform a traditional bid process.
How Tenant Improvement Allowances Factor Into Your Budget
Many commercial leases in the Houston suburbs include a tenant improvement (TI) allowance from the landlord, averaging $30–$60 per square foot in the area. This allowance offsets your construction cost but rarely covers the full buildout, especially for higher-cost sectors like restaurants or medical offices.
Understanding your TI allowance before finalizing a construction budget is essential — it changes what you’re actually financing out of pocket, and it’s a number worth negotiating as part of your lease terms rather than treating as fixed.
Contingency: How Much to Set Aside and Why
First-time commercial buildout owners should budget a 10–15% contingency on top of their base construction estimate. This isn’t a sign of a poorly planned project — it’s standard practice, because even a well-scoped buildout can surface unexpected conditions once walls open up, particularly in older shell spaces.
A contractor who tells you contingency isn’t necessary is either underestimating the project or setting you up for a difficult conversation later. Building it into your budget from the start keeps a surprise from becoming a crisis.
How the Design-Build Model Affects Total Project Cost
Because SMB Group LLC is architect-owned, design fees are integrated into a single design-build contract rather than paid separately to an outside architecture firm — which typically reduces both cost and the change orders that come from a disconnect between design intent and construction execution. That combination tends to bring the real, final cost of a project closer to the original estimate than a traditional design-bid-build process does.
SMB Group also focuses specifically on small-to-mid-size commercial projects — a single jewelry store or optical clinic buildout gets the same attention as a larger medical building, which matters for business owners whose projects are too small to be a priority for larger regional firms. The commercial construction and tenant improvement services page outlines the sectors SMB Group works in, and clients handling interior finishes can select flooring and fixtures through AMS Designer Floors & Interiors, the firm’s sister showroom in Cypress.
Frequently Asked Questions
How much does a commercial buildout cost per square foot in Houston? Commercial construction costs in Houston range from $50 per square foot for basic retail to $300+ per square foot for full-service restaurant or specialty medical space. Most office, retail, and medical tenant improvement projects run $70–$160 per square foot.
What is included in the cost of a commercial buildout? Construction cost figures typically reflect hard costs only — framing, MEP, finishes, and fixtures. Soft costs like design, permitting, and engineering fees usually add another 15–20% on top of the hard cost number.
How does the shell condition affect my buildout cost? A grey shell space — concrete floor and exterior walls only — typically adds $20–$40 per square foot compared to a vanilla shell, because all interior MEP infrastructure has to be built from scratch. This is worth evaluating before signing a lease.
What soft costs should I budget for besides construction? Beyond hard construction costs, budget for design and permitting fees (typically 15–20% of hard costs) and a contingency of 10–15% for unexpected conditions. Tenant improvement allowances from your landlord can offset some of this but rarely cover it in full.
How much contingency should I add to my commercial construction budget? Most first-time commercial buildout owners should budget a 10–15% contingency above their base construction estimate. This covers unexpected conditions that often surface once walls and existing infrastructure are opened up.
How does working with SMB Group compare in cost to hiring separately? Because SMB Group LLC is architect-owned, design fees are built into one design-build contract instead of paid separately to an outside architecture firm, and fewer change orders typically bring final costs closer to the original estimate. Call (281) 272-0786 for a scope-based estimate on your project.
Commercial construction cost in Houston depends far more on sector and shell condition than on square footage alone — a small restaurant buildout can cost more per square foot than a much larger office space. The number that matters most isn’t the headline price per square foot, but how close your final cost lands to your original estimate, which comes down to how the project is designed and managed from the start.
Ready to get a real number on your commercial project? SMB Group LLC gives you scope-based estimates, not guesses. Call (281) 272-0786 or visit www.smbgroup.net — Cypress, TX.
SMB Group LLC | 16143 Cypress Rosehill Rd, Cypress, TX 77429 | (281) 272-0786 | info@smbgroup.net | www.smbgroup.net
