Castle Pines, Colorado Building Permit Guide

Inside the city limits, the City of Castle Pines Building Department issues building and electrical permits through CommunityCore and inspects the work with its own staff. Fees are based on project value: a $40,000 job pays a $968.75 permit fee, plan review adds 65%, and use tax is 3.75% for the City plus 1% for Douglas County on half the value. Inspections asked for before 4 p.m. are generally made the next business day.

What needs a building permit in Castle Pines?

The City sorts permit work into two tracks and gives examples of each; neither list is complete. A 1-Stop permit needs an application and the value of the work, but no drawings. A Plan Review permit needs drawings.

The City’s roofing handout sets the re-roof threshold: any re-roofing project, and any roof repair that replaces more than 100 square feet, needs a permit. Retaining walls shown on a site plan need their own separate permits.

Who issues building permits in Castle Pines?

The Building Department, part of Community Development, enforces the building code, issues permits and completes the inspections. Castle Pines licenses every contractor on a job, including electricians and plumbers, and will not issue a permit until all of them hold a City licence.

The City permits property inside its limits only. Addresses outside them, in unincorporated Douglas County, go to the county’s building division.

CommunityCore, forms and contractor licences

You must create a CommunityCore account to submit a building permit. The same account is used to check permit status and schedule inspections. The City keeps a few PDF forms alongside the online application:

• Building Permit Application, listing the owner, the contractor and every subcontractor with their Castle Pines licence numbers, and the estimated value of the work.
• Revision Request, for changes to plans that have already been approved.
• Residential Fire Sprinkler Options, required for all new one- and two-family dwellings.
• Certificate of Occupancy Request Checklist, for new residential and new commercial buildings only.

Contractor licences are annual and must be in place before work starts in the city. Classes A, B and C are general contractors (all construction; Types III to V in most occupancies; and residential), and each costs $125. Roofing (D-1), mechanical (G), asphalt, concrete, demolition, excavating and utility contractors pay $75, single-trade (D-2) and plumbing (F) contractors $50, and electrical contractors (E) nothing, on proof of their State licence. Homeowners doing their own work do not need a licence.

Castle Pines building permit fees (2026)

A Castle Pines permit bill has up to five parts: the permit fee, a plan review fee, an electrical fee, a $60 zoning fee and use tax for both the City and Douglas County. Every permit pays the permit fee and use tax; the others apply to Plan Review permits. The permit fee comes from this table in the City’s 2026 Fee Schedule and depends on the value of the work, meaning materials plus labor. Homeowners doing the work themselves are told to assign a fair market value to their own labor.

For example, a basement finish valued at $40,000 pays a permit fee of $698.75 plus 15 × $18, which is $968.75. Plan review at 65% adds $629.69 and the zoning fee adds $60. Use tax is charged on half the value: 3.75% of $20,000 for Castle Pines ($750) and 1% of $20,000 for Douglas County ($200). The electrical fee is extra.

The City accepts cash, checks and cards, with a 2.95% fee on card payments. Keep the permit handy when buying materials: showing it means the retailer does not charge City and county sales tax on purchases for the permitted job.

Electrical, plumbing and mechanical permits in Castle Pines

Castle Pines handles trade work within its own permits and inspections. For electrical work, Municipal Code Section 18-3-10 adopts the National Electrical Code as updated to the most current edition by the Colorado State Electrical Board, and the Board’s edition has been the 2026 NEC since August 1, 2026; the City’s Building Department FAQs still name the 2023 edition. Furnace, air conditioner, water heater, gas fireplace and electrical service changes are 1-Stop permits, and the residential submittal checklist asks for HVAC, plumbing and electrical details on the plans for larger jobs. The City charges a separate electrical permit fee:

Electrical contractors register with the City at no charge on proof of their Colorado Electrical Board licence. Plumbing contractors need a State master plumber’s licence, and mechanical contractors must show testing or current licences from two other jurisdictions.

For commercial buildings, the Certificate of Occupancy checklist requires a final walk-through and approval from the Fire Department and approval from Plum Creek Water Reclamation.

Application documents and plan review

What you submit depends on the project type, and the City warns that missing documents lengthen the review. Plan Review permits need two identical sets of scaled drawings showing all structural components, and a site plan for any addition or new structure on the lot.

Residential additions need foundation drawings stamped by a Colorado-licensed engineer or architect. The City publishes building guides for accessory structures, basement finishes, additions, patio covers and carports, pools and hot tubs, re-roofing and uncovered decks.

How to apply: the City’s 4 stages in 6 steps

Castle Pines inspections and final approval

City staff inspect at each phase. To schedule, email buildingdept@castlepinesco.gov, call 303-705-0227 or use the online portal before 4 p.m. on the business day before the inspection. A request made after 4 p.m. on a Friday or a holiday is scheduled for the following Tuesday, and a next-business-day visit is not guaranteed for any request after 4 p.m.

• You can ask for a morning or afternoon visit, but the time is not guaranteed.
• Call after 8:30 a.m. on the day for a two-hour estimated arrival window.
• For work inside a house, someone over 18 must be present; inspectors do not enter an occupied home alone.
• Every roof inspection needs a ladder set up and tied off before the window starts. Mid-roof inspections are required only on flat and tile roofs.

For a Certificate of Occupancy the City asks for 48 hours to process the request, and a request missing any checklist item is denied and restarts the 48 hours. A new home needs all finals approved, the energy reports and Energy Rating Certificate, any special inspection reports, the final home testing report and the final ILC and GESC certificates.

Permits are valid for 180 days after issuance. Call the Building Department to renew if the project will take longer.

Local Castle Pines details that matter

Fire sprinklers in new homes: the Residential Fire Sprinkler Options form is required with every new one- and two-family dwelling, and the City publishes consumer information on automatic residential sprinkler systems.

Roofing: asphalt shingles must meet ASTM D3161 Class A, D or F, or ASTM D7158 Class G or H, and the inspector checks the standard printed on the packaging. Drip edge is required on all eaves and rakes. Ice barrier is not required.

Wind design: 105 mph, 3-second gust, exposure category B.

Asbestos: the City publishes asbestos testing and abatement requirements with its repair guides, relevant to demolition and remodel permits.

Dumpsters and storage pods: placing either in the right-of-way needs a Public Works permit, priced in the 2026 Fee Schedule.

GESC: grading, erosion and sediment control permits are separate City permits, and a final GESC certificate is on the residential Certificate of Occupancy checklist.

Colorado building code

Colorado has no statewide building code for private buildings: each city and county decides whether a code applies and which edition, while the state sets electrical and plumbing rules, a minimum energy code on any update, and a wildfire code for the mapped wildland-urban interface. Building codes in Colorado

Official Castle Pines permit resources

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Colorado DORA electrical and plumbing licensing and permits
• Castle Pines Building Department FAQs
• City of Castle Pines Building Department
• Castle Pines building permits and inspection services (CommunityCore)
• City of Castle Pines 2026 Fee Schedule (PDF)
• Castle Pines Electrical Fee Schedule (PDF)
• Castle Pines building inspections
• Castle Pines contractor licensing
• Building design guides and resources
• Residential Plans Submittal Checklist (PDF)
• Certificate of Occupancy Checklist and Request Form (PDF)

Castle Pines building permit FAQs

Who issues building permits in Castle Pines?

The City of Castle Pines Building Department, for property inside the city limits. Applications go through CommunityCore.

How much does a building permit cost in Castle Pines?

The permit fee depends on project value: $968.75 for a $40,000 job on the 2026 schedule. Plan Review permits add 65% for plan review, an electrical fee and a $60 zoning fee, and every permit pays use tax of 3.75% (City) and 1% (Douglas County) on half the value.

Does a re-roof need a permit in Castle Pines?

Yes. Any re-roof, and any repair replacing more than 100 square feet of roof, needs a 1-Stop permit.

Do I need a permit for a deck or a fence?

A deck needs a Plan Review permit. A fence needs one only when it is over 7 feet high.

Which building codes does Castle Pines use?

The 2021 International Building Code and International Residential Code. Electrical work follows the National Electrical Code edition current with the State Electrical Board, which is the 2026 NEC from August 1, 2026 (the City’s FAQ page has not been updated from 2023).

Can I do the work myself?

Yes. Homeowners doing their own work do not need a contractor licence, but any contractor they hire must be licensed by the City.

How do I schedule an inspection in Castle Pines?

Call 303-705-0227, email the Building Department or use the portal before 4 p.m. for the next business day.

Do Castle Pines permits expire?

Yes, 180 days after issuance, unless you call to renew.

Simplify Castle Pines permitting with Alliance Permitting

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.

This guide is provided by Alliance Permitting for general information about Castle Pines permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.