Residential Building Permit (New Construction) in Westminster, Colorado

Westminster requires a residential building permit (new construction) for: Complete permit application via eTRAKiT for 'RESIDENTIAL NEW – Single Family Attached OR Detached'; Plot/site plan stamped by a Colorado licensed professional engineer or land surveyor, per the Residential Lot Survey Program; Site-specific foundation plans stamped and signed by a registered Colorado Professional Engineer; Site-specific soils report signed and sealed by a Colorado Licensed Professional Engineer; Architectural plans: floor plans, framing plans, building sections, and construction details (hold-downs, shear walls, flashing); Structural plans (if deviating from 2021 IRC prescriptive provisions) meeting the City's Design Criteria for Structures (30 psf snow load, Seismic Design Category B, City Map Wind Zone speed, 36-inch frost depth) and the Colorado Model Electric and Solar Ready Code's future-solar provisions; Energy plans showing the proposed 2021 IECC compliance path plus Colorado Model Electric and Solar Ready provisions; Electrical plans showing all interior/exterior lighting, receptacles, and equipment, including Electric/Solar Ready code items; Fire sprinkler plans (separate permit from the Westminster Fire Department for NFPA 13D/13R systems; deferred submittals not accepted); Truss designs uploaded to eTRAKiT for staff review (a paper copy must also be provided to field inspectors on site). If your project isn't listed, confirm with City of Westminster — Department of Community Development, Building Division at 303-658-2075 before starting work.

In Westminster, the published Building Permit Fee — valuation $1 to $500 is: $19.50. Additional published fees: Building Permit Fee — valuation $501 to $2,000 — $19.50 for the first $500 plus $2.65 for each additional $100 or fraction thereof; Building Permit Fee — valuation $2,001 to $25,000 — $59.25 for the first $2,000 plus $11.90 for each additional $1,000 or fraction thereof; Building Permit Fee — valuation $25,001 to $50,000 — $332.95 for the first $25,000 plus $8.55 for each additional $1,000 or fraction thereof; Building Permit Fee — valuation $50,001 to $100,000 — $546.70 for the first $50,000 plus $5.95 for each additional $1,000 or fraction thereof; Building Permit Fee — valuation $100,001 to $500,000 — $844.20 for the first $100,000 plus $4.60 for each additional $1,000 or fraction thereof; Building Permit Fee — valuation $500,001 to $1,000,000 — $2,684.20 for the first $500,000 plus $3.95 for each additional $1,000 or fraction thereof; Building Permit Fee — valuation $1,000,001 and up — $4,659.20 for the first $1,000,000 plus $2.65 for each additional $1,000 or fraction thereof; Plan Review Fee — 65% of the Building Permit Fee; Permit Trade Fees (mechanical, plumbing, electric) — An additional 15% of the Building Permit Fee for each trade involved, plus 15% of the Plan Review Fee for each trade; Estimated Use Tax — 4.25% of 50% of Total Valuation. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a residential building permit (new construction) in Westminster typically runs 1–1 business days. This is an estimate, not a published figure — confirm current review times with City of Westminster — Department of Community Development, Building Division at 303-658-2075.

You'll need: Building Permit Application (eTRAKiT); New Residential Plan Submittal Requirements; Plot/Site Plan (Residential Lot Survey Program); Foundation Plans and Soils Report; Energy Compliance Documents. See the required-documents checklist on this page for details on each.

Westminster requires 5 inspection(s) for a residential building permit (new construction), in order: Foundation, Framing, MEP Rough-In, Insulation / Energy, Final. Schedule each through City of Westminster — Department of Community Development, Building Division (303-658-2075).

Apply through City of Westminster — Department of Community Development, Building Division at 4800 W. 92nd Avenue, Westminster, CO 80031. Phone: 303-658-2075, email: permits@westminsterco.gov. Office hours: Mon–Fri, 8 a.m.–5 p.m. (front office); residential permit review walk-through times: Tuesdays 1–4:30 p.m. and Thursdays 9 a.m.–noon; all permits must be applied for online via eTRAKiT. Official information: https://www.westminsterco.gov/621/Building-Division.

Westminster has used the 2021 International Codes (IBC, IRC, IFC, IPC, IMC, IFGC, IECC) with City amendments since June 1, 2024, plus the 2023 National Electrical Code (the City has announced the 2026 NEC will take effect August 1, 2026).

No. Westminster issues one project-level building permit; mechanical, plumbing, and electrical trade work is billed as an additional 15% of the building permit fee and 15% of the plan review fee for each trade involved, rather than as separately issued trade permits.