Patio Covers, Pergolas & Decks in Westminster, CO

Building a Patio Cover, Pergola or Deck in Westminster: What to Know

Permits in Westminster come from the City of Westminster Building Division (303-658-2075), which takes applications through its online portal. The city publishes its own design criteria for structures (updated June 2024) along with residential guides for decks, patio covers and carports, and additions.

When you need a permit:

• Patio covers: Westminster has a dedicated Patio Cover and Carports Guide, and roofed structures attached to the home go through building permit review.
• Decks: the city's Deck Building Guide spells out what the plans need to show, including footings, beam and joist sizes, and ledger attachment.
• Screen rooms and sunrooms: enclosing a patio is reviewed under the Residential Additions guide and submittal requirements.

Wind zones vary across the city. Westminster's design criteria include a wind-speed map that divides the city into zones, so a cover near the western edge of town may need a different design from one on the east side. We check the zone for your address before we size posts and roof attachments.

Westminster requires contractors to hold a city contractor license, and electrical work needs a state-licensed electrician on the permit. Call the Building Division at 303-658-2075 to confirm current snow load, frost depth and permit rules for your project.