City Building Permits
Town of Castle Rock, COLORADO Building Permit Guide
How to apply for a building permit in Town of Castle Rock, Colorado. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Applies inside Town of Castle Rock municipal limits; unincorporated county areas are handled by Douglas County.
- Department
- Town of Castle Rock Development Services, Building Division
- Address
- 100 N Wilcox St, Castle Rock, CO 80104
- Phone
- 720-733-3527
Online Permit Portal
Platform: eTRAKiT • Account required: Yes • Submission: In-person only
Additional resources:
Application Process
- Confirm project type and code requirements on the Building Division and residential or commercial permit pages.
- Register contractor or prepare homeowner permit materials if owner-builder.
- Create an eTRAKiT account and submit the permit application and PDF plans/documents online.
- Respond to plan review comments in eTRAKiT if review is required.
- Pay permit fees and use tax when invoiced.
- Receive issued permit in eTRAKiT and post or keep permit records available on site.
- Schedule inspections in eTRAKiT or by hotline and obtain final approvals.
Typical processing time: Not published as a single standard on the main Building page; varies by permit type and plan review scope.
Source: Town of Castle Rock Development Services, Building Division
General Requirements
Building permit applications are required for residential and commercial work handled by the Building Division; examples include additions, decks, reroofing, AC, furnaces, water heaters, remodels, and commercial projects.
Required Documents
- Permit application
- PDF plans where applicable
- Manufacturer specifications and gas load calculations for certain equipment
- Contractor registration materials
- Homeowner affidavit for owner-builders
- Fire or erosion or stormwater materials depending on project
- Permit validity
- Not clearly published on the main permit pages; confirm with Building Division for permit-specific expiration rules.
- Building code
- 2018 IBC, 2018 IRC, 2018 IPC, 2018 IEBC, 2018 ISPSC, 2009 ANSI A117.1, 1997 Uniform Code for the Abatement of Dangerous Buildings, 2023 NEC, plus listed elevator and people-mover standards under Title 15.
- Owner-builder
- Homeowners may act as their own contractor for residential additions, alterations, or repairs, but must submit a Homeowner Affidavit.
- Contractor requirements
- Contractors must have a valid license from a testing jurisdiction with an ICC-equivalent exam, liability insurance, workers compensation if applicable, pay registration fees, and register with the Town before permit application.
Fees
- Minimum permit fee
- Not clearly published on the main fee page.
- Plan check fee
- Included in Development Services fee schedule; project-specific.
- Permit fee formula
- Development Services fee schedule; building permit fees and valuation data plus Town building use tax apply.
- Reinspection fee
- Confirm from current Development Services fee schedule.
- Payment note
- Permit fees are paid through eTRAKiT; Town building use tax may also apply even to some construction modifications that do not require a permit.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the Town of Castle Rock Development Services, Building Division to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- eTRAKiT until 6:30 a.m. on requested date (online)
- Inspection Hotline (phone)
- Scheduling deadline
- eTRAKiT until 6:30 a.m. on the requested date, or call by 3:30 p.m. for next-business-day inspection.
- Inspection hours
- 7:30 a.m. to 5 p.m.; Building Counter assistance after 8 a.m.
Typical inspection sequence: Permit issuance, required trade or building inspections, corrections if needed, then final approvals.
Same-day cancellations after 6:30 a.m. require calling the Building Counter; if the hotline request cannot be accommodated, staff contacts the applicant.
Additional Resources
- Building code: 2018 IBC, 2018 IRC, 2018 IPC, 2018 IEBC, 2018 ISPSC, 2009 ANSI A117.1, 1997 Uniform Code for the Abatement of Dangerous Buildings, 2023 NEC, plus listed elevator and people-mover standards under Title 15.
- Verify contractor license: Contractor Registration
- Zoning information: View zoning info
- Owner-builder rules: View rules
- Inspections
- License lookup guide: Colorado Contractor License Requirements
- Contract template: Colorado Homeowner-Contractor Agreement
- Colorado hub: Colorado Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Town of Castle Rock Development Services, Building Division before applying.
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