Colorado · Deck · Free 2026 permit-fee estimator
Deck permit cost in Colorado
On a typical $9,000 deck project, Colorado's statewide median building permit fee is $120 — about 1.33% of cost. Top Denver metros run higher.
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Colorado statewide median
$120
≈ 1.33% of $9,000 project cost
Range: $120 (min) – $2,200 (max)
Top 3 Colorado metros — actual permit fee
The state base × project type stays the same; the metro multiplier is where the swing comes from.
Denver
$142
Metro multiplier: 1.35× statewide base
Boulder
$147
Metro multiplier: 1.4× statewide base
Colorado Springs
$120
Metro multiplier: 1.05× statewide base
Colorado permit-fee context
Denver + Boulder run higher (1.5%); Front Range mid-tier; Western Slope lower. Energy code review is the largest add-on.
Why deck? Single building permit; modest valuation. Higher if >30in above grade (most). Coastal/freeze zones add structural review.
What this fee does NOT include
- Plan-review service fees (typically 0.5–1% of cost, separate line)
- Per-trade fees (plumbing, electrical, mechanical — $50–$200 each)
- State-level surcharges (FL DBPR, NJ DCA, OR BCD, etc.)
- Contractor's filing/processing fee
Rule of thumb: budget 1.5–2× the base permit fee for the all-in cost.
Compare deck construction in Colorado across all lenses
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FAQ — Deck permits in Colorado
How much is a deck permit in Colorado in 2026?
On a typical $9,000 deck project in Colorado, the statewide median permit fee runs $120 — about 1.33% of project cost. Major metros run higher: Denver $142, Boulder $147, Colorado Springs $120. Denver + Boulder run higher (1.5%); Front Range mid-tier; Western Slope lower. Energy code review is the largest add-on.
Why is the fee higher in major Colorado metros?
Each Colorado city/county sets its own multiplier on top of the state base rate. Denver runs 1.35× because of stricter plan review + structural review + energy-code overhead. Colorado Springs sits lower (1.05×) because of less plan-review depth + simpler intake. Rural counties in Colorado often have flat-fee schedules below even the lowest metro.
What's included in the permit fee vs. what's billed separately?
The permit fee covers the building department's intake + base review. NOT included: plan-review service fees (often a separate line, 0.5–1% of project cost), per-trade fees for plumbing/electrical/mechanical (typically $50–$200 each), and any state-level surcharges (FL adds DBPR 1.5%, NJ adds DCA, OR adds 12% BCD surcharge). Your contractor's filing fee is also separate. Budget 1.5–2× the base permit fee for the all-in cost.
Can I skip the permit and save the fee?
Don't. Working without a required permit fails any future resale inspection (the buyer's inspector WILL flag it), voids your homeowner's insurance for any related claim, and triggers retro-permitting fines that are typically 2–3× the original fee. Colorado treats unpermitted deck work as a separate violation under state building code. The "savings" become a $1,500 problem at resale on a $500 fee.
Other projects in Colorado
Disclaimer: Permit fees are jurisdiction-specific and change frequently. These values are 2026 medians — verify against your local building department's current fee schedule before budgeting.