🪵 Deck Permit in Denver, CO

📋 Quick Facts — Deck Permit in Denver

Do I Need a Deck Permit in Denver?

The short answer: almost always yes. REQUIRED for most deck additions over 200 sq ft or 30 inches above grade — and Denver is no exception. The Community Planning and Development (CPD) enforces building permit requirements for residential and commercial work.

✅ Work That Always Requires a Permit

• Attached deck over 30 inches above grade at any point
• Deck over 200 square feet (most jurisdictions)
• Deck attached to the structure of the house
• Deck with roof, pergola, or covered structure
• Deck with electrical (outlets, lighting circuits)

💰 Deck Permit Fees in Denver (2026)

Permit fees in Denver are set by Community Planning and Development (CPD). Here's the current fee structure for deck work:

Source: Denver CPD fee schedule, verified March 23, 2026. Denver uses SAME valuation-based formula for ALL trade permits. Quick permits (water heater, roof, light fixtures) have NO plan review fee. Plan review = 50% of permit fee for projects over $2,000.

* Fees may change. Always verify current rates with Community Planning and Development (CPD) at https://www.denvergov.org/CPD.

🔍 Inspection Requirements

After the permit is issued, Denver requires inspections at key stages. Do not cover work before it's inspected.

• Footing Inspection: Inspector verifies hole depth reaches below frost line, correct diameter, and placement before concrete is poured.
• Framing Inspection: Inspector checks ledger board attachment, joist hangers, post sizing, beam sizing, and connection hardware.
• Final Inspection: Guardrail height and spacing (4-inch balusters, 36-42 inch rail height), stair rise/run, all fasteners in place.

📝 How to Apply for a Deck Permit in Denver

1. Verify your contractor is licensed — Licensed General Contractor or specialty contractor. Homeowner can pull in most jurisdictions for owner-occupied single-family homes..
2. Gather required documents — Equipment specs, site plan, load calculations where applicable.
3. Submit the application — Online at Community Planning and Development (CPD) or in person.
4. Pay the permit fee — Deck/patio: $115..
5. Post the permit — Keep a copy on-site until all inspections pass.
6. Schedule inspections — Do not cover work until the inspector signs off.

📌 Colorado State Requirements

In addition to Denver's local rules, these state-level requirements apply:

• Denver has its own permit system — Denver Community Planning and Development
• Colorado Springs, Fort Collins, Boulder all have own permit offices
• Mountain towns (Aspen, Vail) — very strict, slow permit process, high fees
• Front Range: Class 4 hail-resistant roofing common due to insurance requirements

→ Colorado Licensing Board

🚫 Common Deck Permit Mistakes in Denver

• Not opening footing holes for inspection before pouring concrete — major fail
• Ledger board attachment not properly flashed — #1 deck failure point
• Using non-approved hardware (galvanized vs stainless in coastal areas)
• Guardrail balusters too wide — 4-inch sphere rule strictly enforced

💡 Pro Tips from Contractors

• Open footing holes for inspection BEFORE pouring concrete — this is the single most common deck inspection failure
• Submit complete plans upfront — missing ledger board details or footing depth is the #1 reason for permit delays
• In coastal or wet climates, use stainless steel hardware (hot-dipped galvanized minimum) — inspectors check this
• Check setback requirements from property lines before designing — some cities require 5-10 feet from property line

Notes specific to Denver:

• Denver has 'home rule' — own permit office separate from rest of CO
• NEC 2023, IRC 2021 for Denver
• Colorado Springs, Fort Collins, Boulder all have own separate permit offices
• Hail-resistant (Class 4) roofing very common — insurance-driven, not always code-required but commonly installed

❓ Frequently Asked Questions

🔗 Related Permit Pages

Other trades in Denver:

Other cities in Colorado: