How Much Does a Building Permit Cost in Denver?

Permit Cost by Project

Do You Need a Permit?

Denver keeps things simple. And one valuation formula covers building permits, plumbing, electrical, and HVAC. We pulled the numbers from the Denver Building and Land Development Fees page plus ADMIN 125 and 138.

A bathroom remodel around $15,000 runs $287 total. That breaks down to $115 building, $43 electrical, $43 plumbing and $83 mechanical. A $25,000 kitchen hits $305 before plan review. Quick permits like water heaters or single light fixtures stay flat at $43 with no plan review.

The city charges plan review at 50 percent of the permit fee once your project tops $2,000. That pushes many bathroom remodels closer to $287 all in. I had to cross reference three PDFs to confirm the quick permit carve outs sit on page 4 of the main fee tables. (Not every city makes it this painless to find.)

Reroof permits cost $115. Decks run the same. Demolition sits at $99. These numbers land below the national median for mid-size cities. Denver doesn't nickel and dime every fixture either.

If your contractor's bid doesn't list separate permit costs, add them yourself. The formula scales cleanly with project value. But plan review adds real money.

Most changes to your house need a permit in Denver. You need one to replace a roof, finish a basement, build a deck, or remodel a bathroom. Same deal for window replacement, siding, and HVAC swaps.

Smaller jobs sometimes slide through. A fence under certain heights, basic shed, or carport mightn't trigger rules. But don't guess. Denver draws clear lines around anything that touches structure, plumbing, electrical or mechanical systems.

The question isn't do I need a permit in Denver for a water heater. Yes you do. Same for an electrical panel upgrade. Skipping these steps risks stop work orders and double fees later.

Check the 2022 Denver Building Code if you're unsure. The local amendments in sections 100 through 142 change the national model codes in meaningful ways. Better to ask up front than fight code enforcement down the road.

Denver doubles the standard permit fee if you get caught without one. That means a $219 building permit turns into $438 fast. They set a $100 minimum late fee.

The rules live in the 2022 Denver Building Code Sections 107.3, 138.2 and 138.3. Nobody wants to pay twice. Yet plenty of homeowners still roll the dice.

Code enforcement usually shows up after a neighbor complaint or when you try to sell the house. The city won't waive the doubling. They also keep the right to issue stop work orders.

Paying the penalty doesn't guarantee approval either. You still must bring the work up to code. Double the fee hurts. Getting ripped out and redone hurts more.

Denver gives you 60 days from issuance to start work. After that the permit can be voided. You also can't abandon the job for 60 days without requesting an inspection. Do that and it expires.

Demolition permits come with tighter clocks. You get 30 days to begin and can't stop for more than 10 days.

The building official can revive a suspended permit within one year. You pay a fee and fix any problems. After one year you start over under current code.

Plan your timeline carefully. These aren't suggestions. They're hard rules from Section 131.7 of the 2022 Denver Building Code.

Licensed contractors pull most permits in Denver. They must stay registered with Community Planning and Development and keep a certified supervisor on staff. Electrical and plumbing trades also need active Colorado state licenses.

Homeowners can pull permits for their own single family house. You must be on the deed, do the work yourself or use unpaid helpers, pass discipline specific exams, and show photo ID. The city limits you to once every five years for new construction. Duplexes, condos and ADUs don't qualify.

Never let a contractor talk you into pulling the permit yourself. That's a red flag. The person whose name sits on the permit owns the legal responsibility. If your contractor won't pull it, find one who will.

Denver does something most cities won't. They apply the exact same valuation formula to building, electrical, plumbing and mechanical permits. No separate tables. No weird per-fixture math that changes by trade.

This makes the calculator on this page unusually precise. Plug in your project value and it returns building, electrical, plumbing and HVAC fees in one shot. Quick permits stay flat. Water heater replacement runs $43. An EV charger permit costs $35. Solar panels sit at $50.

The 50 percent plan review fee kicks in above $2,000. That pushes a $25,000 kitchen remodel from $305 in base permits up toward $450 or more. We verified every number against the May 2024 fee policy and the current Denvergov.org tables.

No state surcharge exists in Colorado. That keeps Denver cheaper than many coastal cities. Even then, the uniformity doesn't mean the fees are low. It just means they aren't hiding tricks in the fine print.

If you run the numbers yourself before you call the building department, you won't get surprised at the counter.

How much does a building permit cost in Denver?

Denver charges $115 for a garden-variety $12,000 project and $219 at $25,000. A full bathroom remodel around $15,000 usually totals $284 across all trades before plan review. Use the calculator on this page for your exact project value.

Do I need a permit to replace a water heater in Denver?

Yes you do. Denver requires a mechanical permit for water heater replacement. It costs $43 as a quick permit with no plan review. Don't skip it. The city treats this as mechanical work that needs inspection.

How much is a plumbing permit in Denver?

Plumbing permits start at a $43 base in Denver. On a $15,000 bathroom remodel the plumbing portion usually lands inside the $284 combined total. The city uses the same valuation formula for plumbing as every other trade.

Do I need a permit to build a deck in Denver?

Yes. A deck requires a building permit in Denver. Expect to pay $115 on a $12,000 project. The work must follow the local amendments to the 2021 IRC. Plan review will add cost if the project exceeds $2,000.

Why does Denver use the same formula for every trade permit?

Denver applies one valuation based formula across building, electrical, plumbing and HVAC permits. This differs from cities that use separate schedules for each trade. It makes the fees more predictable but plan review at 50 percent still adds up fast on larger jobs.