Opening a restaurant in Denver is exciting until you get your first construction estimate. The Front Range restaurant market is competitive, lease rates in neighborhoods like RiNo, LoHi, and Cherry Creek are not getting cheaper, and a buildout that runs over budget can sink the business before the first plate goes out. This guide covers what a restaurant tenant improvement actually involves from a general contractor's perspective, what drives the cost, and where first-time operators get burned.
Why Restaurant TIs Cost More Than Office TIs
If you have built out office or retail space before, throw those numbers away. Restaurant construction is a different animal. A basic office TI in Denver runs $50 to $90 per square foot depending on finishes. A restaurant buildout typically lands between $150 and $350 per square foot, and high-end concepts in neighborhoods like Larimer Square or the Dairy Block can push past $400.
The difference comes down to three things: grease, gas, and water. A restaurant needs a commercial kitchen with hood systems, fire suppression, grease traps, dedicated gas lines, three-compartment sinks, and walk-in coolers. None of that exists in a vanilla shell. Even a second-generation restaurant space (one that was previously a restaurant) often needs significant rework because the previous operator's kitchen layout does not match your concept.
Then there is the health department. The Denver Department of Public Health and Environment has specific requirements for commercial kitchens that go beyond standard building code. Floor finishes, wall materials in prep areas, handwash station placement, and ventilation all have to meet their standards before you get your food establishment license.
The Five Biggest Cost Drivers
1. Kitchen exhaust and fire suppression. A Type I hood with an Ansul fire suppression system, makeup air unit, and rooftop exhaust fan is one of the single most expensive items in a restaurant buildout. Depending on the length of the hood run and the ductwork routing to the roof, this system alone can cost $40,000 to $120,000. If the space has never been a restaurant, the roof penetration and structural support for rooftop equipment add to the bill.
2. Plumbing. Commercial kitchens need significantly more plumbing than any other commercial tenant. Floor drains, grease interceptors (sized to local code), hot water capacity for a three-compartment sink plus a dishwasher running simultaneously, and dedicated handwash stations at every prep station. Plumbing rough-in on a restaurant TI can run three to five times what it costs in a comparable-sized office.
3. Electrical and gas. Commercial kitchen equipment has heavy electrical demands. A single combi oven can pull 50 amps. Walk-in coolers, reach-in refrigerators, ice machines, and point-of-sale systems all need dedicated circuits. If your concept uses gas cooking equipment, you need a gas line sized for the total BTU load, and the utility company has to approve the service. In Denver, an Xcel Energy gas service upgrade can take 8 to 12 weeks.
4. HVAC beyond the kitchen. The dining room needs its own HVAC system that accounts for the heat load from the kitchen. A restaurant that seats 80 people and has an open kitchen generates significantly more heat than a retail store of the same size. Undersizing the dining room HVAC is a common mistake that leads to uncomfortable guests and expensive retrofits.
5. Finishes that match the concept. This is where budget discipline matters most. Custom tile, reclaimed wood, specialty lighting, and built-in banquettes can eat through a budget fast. The most successful restaurant operators we work with set a hard finish budget early and make deliberate tradeoffs. Spend on the bar front and the entry because those create the first impression. Save on back-of-house finishes where guests never go.
Permits and Inspections in Denver
A restaurant buildout in the City and County of Denver typically requires a building permit, a mechanical permit, a plumbing permit, an electrical permit, and a fire alarm permit at minimum. If you are adding or modifying a grease interceptor, you may also need a separate plumbing site permit through Denver Wastewater.
Plan review timelines vary, but as of early 2026, Denver's Development Services is running 4 to 6 weeks for commercial plan review on a standard restaurant TI. Complex projects with structural modifications or changes of occupancy can take longer. We always recommend submitting permit drawings as soon as the design is 90% complete rather than waiting for final equipment specs. You can revise minor details during construction with a field change, but you cannot start framing without an approved permit.
The health department plan review runs on a separate track. Submit your kitchen layout and equipment schedule to DDPHE as early as possible because their review does not always align with the building department timeline. Getting both approvals in parallel saves weeks.
Second-Generation Space vs. Vanilla Shell
Operators often assume that leasing a former restaurant space will save money. Sometimes it does. But "second-gen restaurant" covers a wide range. A space that was a sushi bar does not have the same infrastructure as a space that was a steakhouse with a wood-fired grill. The hood system might be the wrong size, the grease trap might be undersized for your concept, and the electrical panel might not have enough capacity for your equipment list.
Before signing a lease on a second-gen space, get a contractor walkthrough. We do these regularly for clients. We check the condition of the existing hood and fire suppression, verify the grease interceptor size, confirm the electrical panel capacity, and look at the HVAC system. A two-hour walkthrough that costs a few hundred dollars can save you from signing a lease on a space that needs $80,000 in infrastructure upgrades you did not plan for.
A true vanilla shell (no previous tenant improvements) gives you a blank canvas but requires everything from scratch. Budget accordingly. Vanilla shell restaurant buildouts in Denver typically run 20 to 30 percent more than second-gen conversions when the second-gen space is genuinely compatible with your concept.
The Lease Negotiation Construction Angle
Your lease and your buildout are connected. The tenant improvement allowance your landlord offers directly affects your out-of-pocket construction cost. In Denver's current market, TI allowances for restaurant spaces typically range from $30 to $80 per square foot depending on the landlord, the location, and the lease term. That covers a fraction of the total buildout cost for most concepts.
Two lease clauses matter more than most operators realize. First, the landlord's work letter defines what the landlord delivers before your buildout starts. Getting the landlord to deliver a grease trap, roof penetrations for exhaust, and adequate electrical service as part of their base building work can save $30,000 to $60,000 off your construction budget. Second, the construction timeline clause determines your rent commencement date. If your permit takes longer than expected or your buildout hits a delay, you need protection against paying rent on a space you cannot open. Negotiate a rent commencement tied to certificate of occupancy or a fixed number of days after permit issuance, not lease execution.
For more on protecting yourself in the lease, read our guide on red flags in commercial construction contracts.
A Realistic Timeline
Here is what a typical Denver restaurant buildout timeline looks like from the day you engage a contractor:
Weeks 1 to 4: Design development and equipment selection. Your architect, kitchen designer, and GC align on layout, MEP routing, and finish selections.
Weeks 4 to 8: Permit drawings completed and submitted. Health department plans submitted in parallel.
Weeks 8 to 14: Plan review. Use this time to finalize equipment orders (commercial kitchen equipment lead times are 6 to 12 weeks) and lock in subcontractor pricing.
Weeks 14 to 26: Construction. A typical restaurant TI takes 10 to 14 weeks to build once the permit is in hand. Demo, framing, rough MEP, inspections, drywall, finishes, equipment install, final inspections.
Weeks 26 to 28: Final inspections, health department walkthrough, punch list, CO issuance.
Total: 6 to 7 months from contractor engagement to opening day. This assumes no major design changes during construction and no permit surprises. Add 4 to 6 weeks if you need a change of occupancy or structural modifications. For a deeper look at the overall TI process, see our guide to what happens during a commercial tenant improvement.
Where First-Time Operators Get Burned
The most common mistakes we see:
Ordering equipment before the design is final. Kitchen equipment dictates MEP rough-in locations. If you buy a combi oven that needs a different electrical connection than what was drawn, you are paying for an electrical change order.
Ignoring the bar program's infrastructure needs. A craft cocktail bar with a 16-tap draft system, an ice machine, a glass washer, and refrigerated storage needs as much plumbing and electrical as a small kitchen. Budget for it from day one.
Underestimating furniture, fixtures, and equipment (FF&E). Construction cost is not total opening cost. Tables, chairs, smallwares, POS hardware, signage, and initial inventory can add $50,000 to $150,000 on top of the buildout number. We always recommend our clients build a combined construction plus FF&E budget so there are no surprises at the end.
Skipping the contractor walkthrough before signing the lease. We said it above but it bears repeating. A lease on the wrong space is the most expensive mistake in the restaurant business.
Get a Buildout Budget Before You Sign a Lease
If you are planning a restaurant in Denver, the smartest move is to get a GC involved early. We do pre-lease walkthroughs, concept-level budgeting, and value engineering to help operators understand their real costs before they commit to a space. A 30-minute conversation now can prevent a six-figure surprise later.
Call us at 833-SNYDER-9 (833-769-3379) or reach out through our website to schedule a walkthrough or get a preliminary budget for your concept.
Next read: What Does a Commercial TI Cost in Denver in 2026?