Deck / Covered Patio Permit in Westminster, Colorado
Required for decks over 30 inches above grade, any deck with an attached roof, patio covers, awnings, and carports in Westminster. Decks 30 inches or less above grade with no roof do not require a permit.
Verified 2026-06-30 · Source
When you need this permit
- Decks over 30 inches above ground level require a permit
- Any deck with an attached roof requires a permit regardless of height
- Patio covers, non-retractable awnings, and carports require a permit
- Decks not more than 30 inches above ground (uncovered) do NOT require a permit — but Planning approval may still be required; contact the Planning Division at 303-658-2092 before proceeding
- Retaining walls greater than 3 feet, or with surcharge, require a permit (walls 36 inches or less with no surcharge do not)
Required documents
- Req
Building Permit Application (eTRAKiT)
Online application; select the applicable deck/patio cover permit type
- Opt
Deck Guide
City of Westminster's current deck submittal and construction guide
- Opt
Patio Cover and Carports Guide
City of Westminster's current patio cover/carport submittal guide
- Req
Site Plan
Property lines, existing structures, proposed deck/patio footprint and setbacks
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same tiers as new construction) | Varies by valuation — see Residential Building Permit fee tiers | Westminster does not publish a separate flat deck/patio fee; decks over 30in and all covered structures use the standard valuation-based fee table |
| Plan Review Fee | 65% of the Building Permit Fee | — |
Review timeline
~1–1 business days
Typical estimate — confirm current times with the Westminster building department
Inspection process
- 1
Footing (if applicable)
Before concrete pour for structural post footings — 36-inch frost depth minimum
- 2
Framing
Structural framing before decking/cover installed
- 3
Final
Structure complete per approved plans
Tips
- Height and roof determine your permit path: uncovered decks 30 inches or less above grade need no building permit (but may still need Planning Division sign-off); any deck over 30 inches, or any deck with an attached roof, requires a full building permit.
- Patio covers and carports always require a permit in Westminster, regardless of height.
- Contact the Planning Division (303-658-2092) before building even a permit-exempt deck or shed — HOA and zoning approval may still apply.
Frequently asked questions
- Do I need a permit to build a deck in Westminster?
- Only if the deck is more than 30 inches above ground level, or if it has an attached roof. Uncovered decks 30 inches or less above grade do not require a building permit, though Planning Division approval may still apply.
Sources & verification
Verified against official sources. Last reviewed 2026-06-30.
- City of Westminster — Department of Community Development, Building Division — official building department
- Residential Building Permit Requirements, updated 08-22-2024 (PDF)
- Deck Guide (PDF)
- Patio Cover and Carports Guide (PDF)
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Westminster building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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