Commercial Permits

Commercial building permits

Contractors are required to have a valid license from a testing jurisdiction with an ICC equivalent exam, current registration and a certificate of liability insurance, workers compensation insurance (if applicable) with the Town of Castle Rock prior to applying for a building permit. 

Submitting applications

Commercial building permits are available through eTRAKit. The Town of Castle Rock Building Division supports Project Green. Project Green promotes an environmentally responsible and sustainable Town workforce, which includes paperless building permit applications. Applicants are strongly encouraged to submit their plans electronically in PDF format for review through eTrakiT. 

Contact the Building Division by email for alternate submittal methods.

Permit options

All commercial projects require a plan review.

*Permit applications for air conditioning units, water heaters, furnaces and boilers require the manufacturers specifications and load calculations at submittal.

** Permit applications for commercial roofs please refer to the commercial roofing guide

Commercial Fire Requirements

Fire Protection plans or bi-directional antenna plans should be submitted directly to the Fire Department, a permit application is required.  All other permits for the Fire Department are directly linked with eTrakit.

Fee Schedule

Plum Creek Water Reclamation Authority Requirements: New Businesses and Constructions

All new businesses and construction of new buildings in PCWRA’s service area, which includes the Town of Castle Rock, are required to complete and submit the Industry Information Questionnaire. This is a preliminary application and additional application(s) may be required.

All new businesses within our service area are required to submit an Industry Information Questionnaire here. 

Information for New Businesses


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  1. Alternative Materials and Methods.PDF
  2. Certificate of Occupancy Policy (PDF)
  3. Commercial CO Checklist (PDF)
  4. Commercial Remodel Application Checklist (PDF)
  5. Commercial Tenant Improvement Checklist (PDF)
  6. New Commercial and Multi Family Application Checklist (PDF)
  7. Commercial Water Calculations Fixture Unit Worksheet (PDF)
  8. Construction and Sales Trailers Application and Checklist (PDF)
  9. Contractor Registration and Renewal Form (PDF)
  10. Electronic Submittal Guidelines (PDF)
  11. Foundation Compliance Form
  12. Revisions and Resubmittal Guidelines (PDF)
  13. Third Party Sewer Inspection Form
  14. Third Party Water Inspection Form