Westminster spans Adams and Jefferson counties on the north-west metro corridor, runs a fully paperless permit process, and issues permits on a basis most Colorado cities do not: by project rather than by trade. Two dated changes are landing in twenty twenty-six and both need planning for.
The Building Division publishes its review times and its electronic file submittal requirements, with all applications, plan submissions, inspection requests and results handled through the city’s permitting portal.
This guide covers work inside the Westminster city limits, which lie in both Adams and Jefferson counties. Unincorporated land in either is permitted by that county, and the neighbouring metro cities permit separately.
Everyone has to be on the permit before it releases. Beginning the first of May, two thousand twenty-six, a general contractor as well as the mechanical, plumbing and electrical subcontractors must be registered with the city and signed on to the permit, as applicable, prior to permit release. A project cannot be issued while a trade seat is still empty, so subcontractor appointment becomes a permitting milestone rather than a procurement one.
What requires a building permit in Westminster?
Colorado has no statewide building code. Home rule leaves adoption to local government, so whether a building code applies at all, and which edition, is decided by the municipality or the county — roughly two hundred and seventy municipalities and sixty-four counties, each choosing for itself. That makes the edition in force in Westminster a local question, and an exempt list or fee schedule from a neighbouring jurisdiction unreliable. What it does not make Colorado is a state where nothing is decided centrally.
Typically permit required
- New buildings, additions, alterations and change of occupancy or use
- Structural alterations, load-bearing changes, foundations, decks and retaining walls
- Electrical work under the National Electrical Code, permitted locally or by the state board
- Plumbing work under the Colorado plumbing code, permitted locally or by the state board
- Mechanical and fuel gas work, and anything touching the adopted energy provisions
- Work in the wildland-urban interface, and re-roofing, demolition and signs above the local threshold
Often exempt
- Ordinary repairs and maintenance replacing materials in kind
- Small accessory structures below the local threshold, where zoning allows
- Painting, flooring, cabinetry and other finish work
- Like-for-like fixture swaps with no alteration to wiring or piping
An exemption from a building permit is never an exemption from zoning, from the adopted energy provisions, or from a trade permit. Confirm scope with the Westminster Building Division before work starts.
Your electrical and plumbing permits may come from the state, not the city. The State Electrical Board and the State Plumbing Board issue permits and carry out inspections everywhere in Colorado that has no local inspection programme of its own, and the state does not inspect where a local programme exists. Establishing which authority covers the job site is the applicant’s responsibility, not the city’s. One override applies regardless: under section 12-115-120 of the Colorado Revised Statutes, any electrical installation in the new construction, remodelling or repair of a public school must be inspected by a state electrical inspector, even where the local authority has its own electrical code.
Four things Colorado decides centrally, whatever the local code says
First, electrical and plumbing: the National Electrical Code and the Colorado plumbing code are state baselines, and the state boards permit and inspect wherever no local programme exists. Second, energy: under House Bill 22-1362 no jurisdiction is compelled to update its codes, but any jurisdiction that adopts or updates a building code must take up at least the specified minimum energy code, so the floor arrives with the update rather than on a statewide date. Third, the conflict rule: where the energy provisions or the state model codes conflict with the Colorado plumbing code or the National Electrical Code, the plumbing code or the electrical code prevails. Fourth, wildfire: the Colorado Wildfire Resiliency Code adopted in twenty twenty-five sets a state minimum for new construction and significant exterior alterations and additions inside the mapped wildland-urban interface, and it is not a retrofit code. Altitude derating, snow loading and expansive soils are live design constraints across much of the state. The fee model is structurally different from its neighbours: Westminster issues permits for a project, not based on trade, so where more than one trade is involved the subcontractor permit and plan review fees are calculated as a percentage of the general building permit and plan review fees rather than as separate standalone permits
Who handles permitting in Westminster?
The Building Division administers permitting, plan review and inspections for the city on a fully paperless basis, publishing its review times, its electronic file submittal requirements and recorded sessions on contractor licensing and code updates.
| Detail | Information |
|---|---|
| Department | City of Westminster Building Division |
| Address | 4800 West 92nd Avenue, Westminster, CO 80031 |
| Phone | (303) 658-2161 |
| Hours | Monday to Friday, 8:00 a.m. to 5:00 p.m. |
| Process | Fully paperless through the city permitting portal |
| Commercial review | Thirty business days initial, fifteen business days subsequent |
| From 1 May 2026 | General contractor and trade subcontractors registered and signed on before release |
| From 1 August 2026 | Permits must comply with the two thousand twenty-six electrical code |
The electrical code moves on a published date. Effective the first of August, two thousand twenty-six, permits need to comply with the two thousand twenty-six edition of the national electrical code — so a project straddling that date should confirm which edition governs its permit rather than its design start.
The portal has practical constraints the city states plainly. It works best in one browser, and applications cannot be completed on a smartphone or tablet at all. Public users can view records and check project status without logging in; registered public users can pay fees and view records in detail; contractors can pay fees, apply for permits and schedule and cancel inspections on their own permits.
Permit types
Residential permits
Permits are required for both interior and exterior residential building projects. The city publishes examples of projects needing permits rather than an exhaustive exemption list, and asks applicants to read the electronic file submittal requirements before applying, since the process is entirely paperless.
How Colorado contractor credentials work
Colorado has no state general contractor licence. General contractor licensing is done by municipalities and counties, many of which also require a surety bond, so a credential earned in one Front Range city does not necessarily travel to the next. The trades are the opposite: electricians and plumbers are licensed by the state, through the State Electrical Board and the State Plumbing Board, and those licences are statewide. A journeyman electrician works under a registered electrical contractor and cannot independently pull permits.
Unregistered trade work is a state-law violation, not a local one. It is a violation of state law for anyone other than the homeowner, who is not a registered electrical or plumbing contractor, to install electrical or plumbing work on a property — and a homeowner’s insurance may not cover damage caused by an uninsured installer. Confirm the general contractor’s local licence with the Westminster Building Division and the trade registrations with the state boards, because the two are checked in different places.
Commercial permits
Commercial review is published at thirty business days for the initial review and fifteen business days for subsequent reviews. Tap fees for new water and sewer connections must be paid when the building permit is issued, and are recalculated if the building’s use changes in future, with additional tap fees potentially due at that point.
Local licences, state trade registration and design professionals
Three credential layers appear on a Colorado project and they are held by three different bodies: the local general contractor licence and any bond the jurisdiction requires; state registration for the electrical and plumbing contractors, verified with the state boards; and, on commercial and larger residential work, drawings stamped by a Colorado-licensed architect or professional engineer. Confirm what the Westminster Building Division requires for the specific building before filing.
Westminster permit costs and fees
Westminster prices by project rather than by trade, with subcontractor permit and plan review fees calculated as a percentage of the general building permit and plan review fees. Tap fees for new water and sewer connections are payable at permit issuance.
| Fee component | How it works |
|---|---|
| Building permit | Set by the local jurisdiction on valuation or square footage; there is no state building fee schedule |
| Plan review | A percentage of the permit fee or a flat charge, set locally |
| Electrical | A state board permit fee where no local electrical programme exists; a local fee where one does |
| Plumbing | The same split as electrical, against the Colorado plumbing code |
| Energy compliance | Documentation for whichever energy code the jurisdiction adopted under House Bill 22-1362 |
| Wildland-urban interface | Additional review where the parcel sits inside the mapped interface |
Because Colorado sets no statewide building fee schedule, two jurisdictions on the same model code can price the same project very differently. The component most often missed is the trade permit, because on a job outside a local inspection programme it is paid to a state board rather than to the city. Ask the Westminster Building Division for the schedule in force on your filing date, and confirm the electrical and plumbing route separately.
Need a real number for a specific Westminster project? Send us the scope, address and valuation and we will identify the adopted edition, the trade authority, the wildfire position and the fee categories that will apply.
Trade permits and who may pull them
Trade permits in Colorado are not necessarily issued by the same body as the building permit. Where the jurisdiction runs its own electrical or plumbing inspection programme, the trade permit is local. Where it does not, the permit and the inspection come from the state board instead, and state-issued permits run for one year from issue.
Your electrical and plumbing permits may come from the state, not the city. The State Electrical Board and the State Plumbing Board issue permits and carry out inspections everywhere in Colorado that has no local inspection programme of its own, and the state does not inspect where a local programme exists. Establishing which authority covers the job site is the applicant’s responsibility, not the city’s. One override applies regardless: under section 12-115-120 of the Colorado Revised Statutes, any electrical installation in the new construction, remodelling or repair of a public school must be inspected by a state electrical inspector, even where the local authority has its own electrical code.
- Electrical work follows the National Electrical Code as adopted by the state and amended locally, performed by a state-licensed electrician working for a registered electrical contractor.
- Plumbing work follows the Colorado plumbing code, performed by a state-licensed plumber for a registered plumbing contractor.
- Mechanical and fuel gas work follows whichever mechanical provisions the jurisdiction adopted, permitted locally.
Permit required
- Service installations, panel upgrades, new circuits, solar photovoltaic and EV charging
- New plumbing, repipes, water heater change-outs, fixtures, backflow and gas piping
- Mechanical installation and change-out, ductwork and venting
- Any electrical work in a public school, which a state inspector must inspect
Typically exempt
- Replacing a fixture, switch, receptacle or light with no alteration to wiring or piping
- Clearing a stoppage without replacing or rearranging concealed piping
- Filter, thermostat and routine component service
- Like-for-like appliance repair that does not alter the connection
How to apply for a Westminster building permit
From the first of May, two thousand twenty-six the general contractor and the mechanical, plumbing and electrical subcontractors must be registered and signed on before release.
Permits are issued for a project rather than by trade, with subcontractor fees as a percentage of the general permit and plan review fees.
From the first of August, two thousand twenty-six permits must comply with the two thousand twenty-six electrical code.
The process is fully paperless and the city publishes specific submittal requirements.
Thirty business days for the initial review and fifteen for each subsequent review.
They are payable when the building permit is issued and recalculated if the use changes later.
Review, corrections and what actually causes delay
The first cause of delay in Colorado is the trade split: a project waits on a city inspection that was never going to happen, because the electrical or plumbing permit sits with a state board. The second is the wildland-urban interface, where a parcel inside the mapped area brings requirements the building code alone does not describe. The third is the energy code, because the tier a jurisdiction sits on depends on when it last updated rather than on a statewide date. The fourth is edition drift between neighbouring jurisdictions on the same corridor. There is no statutory review clock for building permits: any timeline you are given is that jurisdiction’s own target. Confirm the checklist with the Westminster Building Division before filing.
Approvals do not stay live indefinitely. Local permit validity periods are set by the adopting jurisdiction and differ between neighbours, while state-issued electrical and plumbing permits run one year from the date of issue. On phased or financed work, confirm both clocks and keep them alive with progress inspections.
Inspections in Westminster
Standard checkpoints include footing and foundation, framing, rough-in electrical, plumbing and mechanical, insulation and energy compliance, fire systems on commercial work, and final, with a certificate of occupancy before the building is used. Contractors can schedule and cancel inspections on their own permits through the portal, but only for permits they are signed on to.
Plan around the possibility of two inspection queues. Where the state boards hold the electrical or plumbing permit, their inspectors attend on the state’s schedule and the local inspector will not sign off that trade. State board policy is that the contractor or a representative, or an adult homeowner or their representative, must be present for the inspection of an occupied dwelling unit — so an unattended property cannot be inspected.
Do not cover work before the required inspection has been approved. Keep the issued permits, the approved plans and the energy compliance documentation available on site.
Westminster permit search and official resources
Permit records in Colorado are split the way the permits are. Where the Westminster Building Division is the authority for the City of Westminster, it holds the building record — but an electrical or plumbing permit issued by a state board sits with that board instead. If you are buying, refinancing or renovating, check both, because a clean local record does not mean the trade work was ever permitted.
Three questions, three different answers. Which edition did this jurisdiction adopt, and when did it last update? Who holds the electrical and plumbing permits here, the city or the state board? And is the parcel inside the mapped wildland-urban interface? None of the three can be assumed from a neighbouring jurisdiction.
These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.
- Westminster Building Division
- Westminster apply for a permit or project
- Westminster building fees
- Colorado electrical and plumbing permits homepage
- State Electrical Board permit and inspection information
Frequently asked questions
Why will my permit not release?
From the first of May, two thousand twenty-six, a general contractor as well as the mechanical, plumbing and electrical subcontractors must be registered with the city and signed on to the permit, as applicable, prior to permit release. An empty trade seat holds the whole permit.
How are trade permits priced here?
As a proportion rather than separately. Westminster issues permits for a project, not based on trade, and subcontractor permit and plan review fees are calculated as a percentage of the general building permit and plan review fees. Additional fees are due where more than one trade is involved.
How long is commercial review?
Thirty business days for the initial review and fifteen business days for subsequent reviews, as published by the division.
Which electrical code applies?
It depends on the permit date. Effective the first of August, two thousand twenty-six, permits need to comply with the two thousand twenty-six edition of the national electrical code. The trades are the part Colorado does decide centrally. The State Electrical Board and the State Plumbing Board issue permits and carry out inspections everywhere in the state with no local inspection programme of its own, and the state does not inspect where a local programme exists, so establishing the correct authority for the job site is the applicant's responsibility. State-issued permits run one year from the date of issue. Electricians and plumbers are licensed by those state boards and the licences are statewide, while general contractors are licensed by municipalities and counties, often with a surety bond. It is a violation of state law for anyone other than the homeowner, who is not a registered electrical or plumbing contractor, to install that work.
Which building code edition applies?
The edition Westminster adopted. Colorado has no statewide building code. Home rule leaves adoption to local government, so whether a building code applies at all, and which edition, is decided by the municipality or the county — roughly two hundred and seventy municipalities and sixty-four counties, each choosing for itself. House Bill 22-1362 does not compel any jurisdiction to update, but when a jurisdiction adopts or updates a building code it must take up at least the specified minimum energy code, so the energy floor arrives with the update rather than on a statewide date. Where the energy provisions or the state model codes conflict with the Colorado plumbing code or the National Electrical Code, the plumbing code or the electrical code prevails.
Can I apply on my phone?
No. The city states that applications cannot be completed on a smartphone or tablet, and recommends a desktop browser for the portal.
Simplify Westminster permitting with Alliance Permitting
When subcontractor appointment becomes a permitting milestone, procurement has to move earlier. We flag that at programme stage.
Trusted by leading builders, developers, and national contractors — 22 years of filing in the jurisdictions we write about.
Contractors and builders choose Alliance for Westminster because the work is done by people who have stood at the counter:
- Twenty-two years of filing, so the trade authority is settled before the application goes in
- We confirm which edition the jurisdiction adopted and when it last updated
- Local general contractor licence and state trade registration both verified, in different places
- Wildland-urban interface position checked against the state map before the design is fixed
- Two inspection queues sequenced so a cover-up never waits on the wrong inspector
Alliance Permitting is a permit documentation and submission company in Colorado. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.
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More Colorado permitting guides
This guide is provided by Alliance Permitting for general information about Westminster permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.