This is PermitBase’s published record for Westminster as of 2026-07-01. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Westminster building permits
VerifiedWestminster, Colorado — as published 2026-07-01.
Verified 2026-06-30 · Source
Codes adopted
2021 International Building Code (IBC) — with City of Westminster amendments; effective June 1, 20242021 International Residential Code (IRC) — with City of Westminster amendments; effective June 1, 20242021 International Fire Code (IFC) — with City of Westminster amendments; effective June 1, 20242021 International Plumbing Code (IPC) — with City of Westminster amendments; effective June 1, 20242021 International Mechanical Code (IMC) — with City of Westminster amendments; effective June 1, 20242021 International Fuel Gas Code (IFGC) — with City of Westminster amendments; effective June 1, 20242021 International Energy Conservation Code (IECC) — adopted per Westminster Municipal Code Section 11-9-11, meeting the Colorado HB22-1362 statewide minimum energy-code floorColorado Model Electric Ready and Solar Ready Code — adopted per Westminster Municipal Code Section 11-9-12, with Westminster amendments (waiver/variance provisions for commercial buildings over 10,000 sq ft and substantial cost differential appeals)2023 National Electrical Code (NEC) / NFPA 70 — current edition (per Westminster's Commercial Plan Review Submittal Guidelines); the City has announced the 2026 NEC will become effective August 1, 2026, superseding the 2023 editionICC/ANSI A117.1-2017 — Standard for Accessible Design
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired for all new single-family attached or detached dwellings in Westminster. Reviewed against the 2021 IRC and 2021 IECC with Westminster amendments, plus the City's Design Criteria for Structures (wind, snow, seismic). Applications are submitted entirely online via eTRAKiT.
Verified 2026-06-30 · Source
Requirements
- 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)
Required documents
- RequiredBuilding Permit Application (eTRAKiT)Online application submitted through the City's eTRAKiT permitting portal
- RequiredNew Residential Plan Submittal RequirementsCity of Westminster checklist for new single-family attached or detached construction
- RequiredPlot/Site Plan (Residential Lot Survey Program)Stamped by a Colorado licensed PE or land surveyor
- RequiredFoundation Plans and Soils ReportSite-specific, stamped/signed/sealed by a Colorado Licensed Professional Engineer
- RequiredEnergy Compliance Documents2021 IECC compliance path documentation including envelope, Manual J/S/D, and Colorado Model Electric and Solar Ready Provisions
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation $1 to $500 | $19.50 | City of Westminster Building Division Fee Schedule, effective January 1, 2026 |
| 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 | City of Westminster Building Division Fee Schedule (effective Jan 1, 2026) |
| 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 | Westminster issues one project permit rather than separate trade permits; trade work is billed as a percentage add-on |
| Estimated Use Tax | 4.25% of 50% of Total Valuation | Effective January 1, 2026 |
Residential Addition / Remodel Permit
VerifiedRequired for room additions, basement finishes, remodels, and structural alterations to existing one- and two-family dwellings in Westminster. Uses the same valuation-based fee schedule as new residential construction.
Verified 2026-06-30 · Source
Requirements
- Room additions, attached/detached garages, and accessory buildings larger than 120 sq ft require a permit
- Basement finishes and remodels involving modifications to electrical, plumbing, mechanical, and/or structural systems require a permit
- Installation of additional windows or doors, or a change in window/door size, requires a permit
- Electric-to-gas conversions require a permit
- Plans must show scope, dimensions, structural details, and connection to the existing structure
- Structural work must meet the City's Design Criteria for Structures (30 psf snow, Seismic Design Category B, City Map Wind Zone speed)
Required documents
- RequiredBuilding Permit Application (eTRAKiT)Online application; select the applicable remodel/addition permit type
- RequiredSite PlanProperty lines, existing structures, proposed addition footprint, setbacks
- RequiredConstruction DrawingsPlans showing the addition/remodel scope, including structural details if structural work is involved
- RequiredResidential Additions Plan Submittal RequirementsCity of Westminster's current checklist for addition and remodel submittals
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 ($19.50 minimum, up to $4,659.20 + $2.65/$1,000 over $1M) | City of Westminster Building Division Fee Schedule, effective January 1, 2026 |
| Plan Review Fee | 65% of the Building Permit Fee | — |
| Permit Trade Fees (mechanical, plumbing, electric) | An additional 15% of the Building Permit Fee, plus 15% of the Plan Review Fee, for each trade involved | — |
| Estimated Use Tax | 4.25% of 50% of Total Valuation | — |
Electrical Permit
VerifiedRequired for installation of new or altered electrical service equipment, feeders, branch circuits, and interconnected power sources in Westminster. The City of Westminster's Building Division issues and administers electrical permits as part of its single project-permit model — Westminster does NOT route permit issuance through the Colorado DORA Electrical Board, though contractors must hold the underlying state Electrical Contractor/Master Electrician license as a prerequisite to the City's own Class C Electrical Contractor license.
Verified 2026-06-30 · Source
Requirements
- Installation of new or altered electrical service equipment, including service entrance, feeder, or branch circuit conductors (permit required city-wide)
- Interconnected electric power production sources (generators, solar/photovoltaic, wind, fuel cell systems) require a permit
- Underground electric over 50 volts for landscaping requires a permit
- Electrical contractors must hold a City of Westminster Class C Electrical Contractor license (no charge) — issuance requires providing copies of the electrician's Colorado state master's license AND state contractor's license
- Beginning May 1, 2026: Electrical subcontractors must be registered with the City and signed onto the permit prior to permit release
Required documents
- RequiredBuilding/Electrical Permit Application (eTRAKiT)Westminster issues a single project permit; electrical scope is entered on the same application with the applicable trade fee
- RequiredContractor License ApplicationCity of Westminster Class C Electrical Contractor license application; requires copies of the state master's and state contractor's licenses
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Permit Trade Fee — Electric | An additional 15% of the Building Permit Fee, plus 15% of the Plan Review Fee | City of Westminster Building Division Fee Schedule, effective January 1, 2026 — 'Permit trade fees: An additional 15% of the permit fee for each of the following: mechanical, plumbing, electric' |
| Contractor License — Class C Electrical Contractor | No charge | Requires copies of Colorado state master's license and state contractor's license; City of Westminster Contractor License Application (Revised October 9, 2025) |
Plumbing Permit
VerifiedRequired for plumbing installations, alterations, and repairs in Westminster, including underground repair/replacement of sewer and water lines. The City of Westminster's Building Division issues plumbing permits itself; contractors must hold the underlying Colorado state DORA Plumbing license as a prerequisite to the City's Class B Plumbing Contractor license.
Verified 2026-06-30 · Source
Requirements
- Underground repair/replacement of sewer/water lines requires a permit
- Relocating plumbing fixtures requires a permit (replacing fixtures in place does not)
- Whole house water softener system installation requires a permit
- Plumbing contractors must hold a City of Westminster Class B Plumbing Contractor license ($110) — issuance requires copies of the state master's and state contractor's license
- Beginning May 1, 2026: Plumbing subcontractors must be registered with the City and signed onto the permit prior to permit release
Required documents
- RequiredBuilding/Plumbing Permit Application (eTRAKiT)Westminster issues a single project permit; plumbing scope is entered on the same application with the applicable trade fee
- RequiredContractor License ApplicationCity of Westminster Class B Plumbing Contractor license application ($110); requires copies of the state master's and state contractor's licenses
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Permit Trade Fee — Plumbing | An additional 15% of the Building Permit Fee, plus 15% of the Plan Review Fee | City of Westminster Building Division Fee Schedule, effective January 1, 2026 |
| Water Heater Replacement (Miscellaneous SFD Residential Permit) | $40.00 | City of Westminster Building Division Fee Schedule — Miscellaneous SFD Residential Permit Fees section |
| Contractor License — Class B Plumbing Contractor | $110.00 | Requires copies of Colorado state master's license and state contractor's license; City of Westminster Contractor License Application (Revised October 9, 2025) |
Mechanical / HVAC Permit
VerifiedRequired for heating, cooling, ventilation, and gas-fired equipment installations in Westminster, including furnaces, boilers, water heaters, evaporative coolers, and air conditioners. Governed by the 2021 IMC and 2021 IFGC with Westminster amendments.
Verified 2026-06-30 · Source
Requirements
- Installation or replacement of HVAC equipment, including boilers, water heaters, furnaces, and tankless water heaters requires a permit
- Evaporative (swamp) cooler installation or replacement requires a permit
- Air conditioner installation or replacement requires a permit
- Gas logs and gas lines require a permit; fireplace/inserts (wood, pellet, or gas) require a permit
- Gas pipe plan required for any gas line work, or when a replacement appliance's input BTU/hr exceeds the appliance being replaced — must show meter delivery pressure (6" W.C., 12" W.C., or 2 psi per Xcel Energy) and a system drawing
- Gas pipe sizing follows Appendix AA of the 2021 IRC or Appendix A of the 2021 IFGC; conversion uses 831 BTU/hr per CFH for Westminster (per Xcel Energy); no altitude derate factor is used under the current 2021 I-Codes
Required documents
- RequiredBuilding/Mechanical Permit Application (eTRAKiT)Westminster issues a single project permit; mechanical scope is entered on the same application with the applicable trade fee
- OptionalGas Pipe Plan Submittal RequirementsRequired for any gas line work or appliance replacement with higher BTU/hr input than the unit being replaced
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Permit Trade Fee — Mechanical | An additional 15% of the Building Permit Fee, plus 15% of the Plan Review Fee | City of Westminster Building Division Fee Schedule, effective January 1, 2026 |
| Furnace Replacement (Miscellaneous SFD Residential Permit) | $60.00 | May also require an electrical permit fee |
| Air Conditioner (Miscellaneous SFD Residential Permit) | $80.00 | May also require an electrical permit fee |
| Evaporative Cooler (Miscellaneous SFD Residential Permit) | $60.00 | May also require an electrical permit fee |
| Gas Log (Miscellaneous SFD Residential Permit) | $60.00 | See WMC Section 11-9-3(E)(2) for exceptions |
Roofing Permit (Reroof)
VerifiedRequired for roof replacement in Westminster whenever cumulative roof covering damage exceeds one square (100 sq ft), per the Residential Re-roofing Guide based on the 2021 IRC with Westminster amendments. Minor repairs of 100 sq ft or less do not require a permit.
Verified 2026-06-30 · Source
Requirements
- Full roof replacement required when cumulative damage exceeds one square (100 sq ft) — replacement must be of the entire roof covering
- Apply for a Residential Counter Type permit via eTRAKiT; provide total valuation including labor and material
- HOA written permission (if required) must be uploaded to the permit prior to final inspection
- Engineer's letter required when replacing existing metal or asphalt roofing with new concrete/clay tile roofing, or when replacing tile with heavier tile — verifying the structure meets current code and Design Criteria
- If solar is existing, an additional permit is required for removal and reinstallation of the solar system
- Westminster is in a Special Wind Region — high wind nailing per manufacturer instructions is required for all asphalt shingle installations
- Asphalt shingles must comply with 2021 IRC Section R905.2.4, tested to ASTM D 7158, with wind classification appropriate to the ultimate design wind speed for the parcel's City Map Wind Zone
- Minor roofing repair of 100 sq ft (one square) or less does NOT require a permit
Required documents
- RequiredRoofing Permit Application (eTRAKiT, Residential Counter Type)Online application through eTRAKiT
- RequiredResidential Re-roofing GuideCity of Westminster's submittal and inspection guide based on the 2021 IRC as amended
- OptionalEngineer's LetterRequired only when changing roofing material type/weight (e.g., asphalt/metal to concrete/clay tile)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Re-Roofing (Miscellaneous SFD Residential Permit) | $80.00 | City of Westminster Building Division Fee Schedule V3 2026, effective January 1, 2026 — "Miscellaneous SFD Residential Permit Fees" table lists Re-Roofing at $80.00* (asterisk footnote applies per the published schedule) |
Solar PV Permit
VerifiedRequired for interconnected electric power production sources including rooftop or ground-mounted solar/photovoltaic systems in Westminster. Processed as a Miscellaneous Permit with a flat fee, subject to the Colorado Model Electric Ready and Solar Ready Code amendments (WMC 11-9-12).
Verified 2026-06-30 · Source
Requirements
- Interconnected electric power production sources (generators, solar/photovoltaic, wind, fuel cell systems) require a permit in all areas
- Plans must show compliance with the Colorado Model Electric and Solar Ready Provisions (WMC 11-9-12)
- Structural verification that the roof can support the panel/racking load per the City's Design Criteria for Structures (30 psf snow load, City Map Wind Zone wind speed, Seismic Design Category B)
- Electrical single-line diagram and load calculations required
- A licensed electrical contractor holding a City of Westminster Class C Electrical Contractor license must be signed onto the permit
Required documents
- RequiredSolar Permit Application (eTRAKiT)Apply as a Solar Systems permit via the eTRAKiT portal
- RequiredElectrical PlanSingle-line diagram, load calculations, equipment location including disconnect
- RequiredStructural/Racking DetailsRoof attachment and load verification per Design Criteria for Structures
- RequiredEquipment SpecificationsManufacturer spec sheets for panels, inverter, racking, and battery storage if applicable
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Solar Systems (Miscellaneous Permit Fee) | $300.00 | City of Westminster Building Division Fee Schedule, effective January 1, 2026 — Miscellaneous Permit Fees section |
Accessory Dwelling Unit (ADU) Permit
VerifiedRequired for construction of a new attached or detached ADU on a single-family detached lot in Westminster. City Council newly authorized ADUs citywide on November 18, 2024, effective January 1, 2025 — the same codes that apply to residential construction (2021 IRC, Fire, utility connections) apply to ADUs.
Verified 2026-06-30 · Source
Requirements
- 1 ADU allowed per primary dwelling unit on the same lot
- Permitted in any zone that allows single-family detached dwelling units as a use
- ADU may be located within the principal dwelling (e.g., basement/attic with private entrance), attached as an addition, or as a separate detached building on the same lot
- Must be on a permanent foundation; all codes applicable to residential construction apply, including the IRC and Fire Code (including fire sprinklers where required)
- Full kitchen facilities and a full bathroom are required
- Principal dwelling must have a Certificate of Occupancy; the ADU requires its own separate Certificate of Occupancy
- ADU must have its own address (assigned during the review process); apply for the permit under the principal dwelling's address
- Minimum size: 190 sq ft. Maximum size: 1,200 sq ft or 50% of the principal dwelling's gross floor area, whichever is less (up to 750 sq ft allowed where the principal dwelling is under 1,500 sq ft; ADU may never be larger than the principal dwelling)
- Setbacks: front and side match the principal dwelling's required setbacks; rear setback is the greater of the accessory-structure setback or 5 feet; ADUs may not be built over an easement
- Engineered plans prepared by a licensed professional, drawn to scale and specific to the property, are required
- No City-imposed restriction on ADU rental rates
Required documents
- RequiredBuilding Permit Application (eTRAKiT)Apply under the principal dwelling unit's address; ADU permits follow the standard residential permit process
- RequiredAccessory Dwelling Unit Info Sheet (Rev. 5, March 10, 2026)City of Westminster's current ADU provisions guide: allowance, size, setbacks, design, address, fees
- RequiredEngineered Construction PlansPrepared by a licensed professional, drawn to scale, specific to the property, meeting the 2021 IRC and Design Criteria for Structures
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 | ADU Info Sheet (Rev. 5): 'Building Permit fees, as determined by Building' |
| Plan Review Fee | 65% of the Building Permit Fee | ADU Info Sheet: 'Building Review fees, as determined by Building' |
| Use Tax | 4.25% of 50% of Total Valuation | ADU Info Sheet: 'Use Tax fees, as determined by Building' |
| Utility Tap Fees | Varies — determined by Westminster Public Works and Utilities (PWU) | ADU Info Sheet: 'Utility tap fees apply, as determined by PWU' — the Info Sheet explicitly states this is not an exhaustive fee list and other development/impact fees may apply; confirm exact tap fee at application via the Water Tap and Sewer Fees page |
Demolition Permit
VerifiedRequired for demolition of structures in Westminster. Processed as a flat-fee Miscellaneous Permit.
Verified 2026-07-01 · Source
Requirements
- Demolition permit required for structure removal
- Utility disconnects (gas, electric, water, sewer) must be verified or arranged prior to demolition
- Apply via eTRAKiT
Required documents
- RequiredDemolition Permit Application (eTRAKiT)Online application through eTRAKiT
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Demolition Permit (Miscellaneous Permit Fee) | $25.00 | City of Westminster Building Division Fee Schedule, effective January 1, 2026 — Miscellaneous Permit Fees section |
Commercial Tenant Improvement Permit
VerifiedRequired for interior remodels, additions, and tenant improvements in commercial buildings in Westminster. Reviewed against the 2021 IBC, IFC, IPC, IMC, IFGC, and IECC plus the 2023 NEC and ICC/ANSI A117.1-2017 accessibility standard, all with Westminster amendments. Submitted digitally via eTRAKiT with a published SLA.
Verified 2026-06-30 · Source
Requirements
- Properly completed online building permit application via eTRAKiT; incomplete applications are not accepted
- Scalable architectural site plan showing accessible routes, parking, curb ramps, and other ICC/ANSI A117.1-2017 compliance details
- Exterior elevations depicting all exposed mechanical/electrical equipment, meters, and gas lines, with screening methods per Planning Division review
- Digitally submitted plans must be signed and sealed by the design professional of record
- Site-specific soils report including foundation recommendations
- A licensed contractor must be signed onto the permit prior to issuance (design professionals may apply, but a licensed contractor must be added before issuance)
- Commercial building permit review timeline: 30 business days for initial review, 15 business days for subsequent reviews (published City SLA)
Required documents
- RequiredCommercial Building Permit Application (eTRAKiT)Online application through the City's eTRAKiT system
- RequiredCommercial Plan Review Submittal GuidelinesCity of Westminster's current commercial submittal checklist, listing all applicable design codes and editions
- RequiredFull Construction Drawing SetArchitectural, structural, mechanical, plumbing, electrical plans as applicable, digitally signed/sealed
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same Table 1 as residential) | Per the City of Westminster Building Division Fee Schedule valuation tiers | Fee Schedule, effective January 1, 2026; commercial valuation includes labor, materials, and all trade work |
| Plan Review Fee | 65% of the Building Permit Fee | — |
| Permit Trade Fees (mechanical, plumbing, electric) | An additional 15% of the Building Permit Fee, plus 15% of the Plan Review Fee, for each trade involved | — |
| Estimated Use Tax | 4.25% of 50% of Total Valuation | — |
Deck / Covered Patio Permit
VerifiedRequired 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
Requirements
- 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
- RequiredBuilding Permit Application (eTRAKiT)Online application; select the applicable deck/patio cover permit type
- OptionalDeck GuideCity of Westminster's current deck submittal and construction guide
- OptionalPatio Cover and Carports GuideCity of Westminster's current patio cover/carport submittal guide
- RequiredSite PlanProperty 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 | — |
Sources & verification
Verified against official sources. Last reviewed 2026-06-30.
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.