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Building Safety
Welcome to the Jefferson County Division of Building Safety home page. The division is entrusted with achieving compliance with applicable state laws and adopted building codes in regards to building design and construction within unincorporated Jefferson County. Is my address in unincorporated Jeffco?
Hot Topics
The County has adopted an addendum to the 2018 Jefferson County Code Supplement. Appendix Z - Special Building Construction Regulations in Wildfire Zone 1. Effective Date January 1, 2020.
Passive Radon Mitigation System Inspection is now required for new residential construction per R109.3.5 of the 2018 Jefferson County Residential Code Supplement.
Online Service
Apply for a Permit &
Inspection Requests
Online Service
Permit Search
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Building Codes
Building codes are in place to protect public health, safety and general welfare as they relate to the construction and occupancy of buildings and structures.
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Building Safety Permit Fees
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Contractor Licensing
All general, roofing and mechanical contractors applying for permits in Unincorporated Jefferson County are required to obtain a Jefferson County Contractors License.
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Fire Districts
Find information about the fire districts in Jefferson County.
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Guides
The Jefferson County Building Safety department has supplied these guides to help make your projects a success.
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Inspections
Inspection requests for building, electrical, mechanical, plumbing and re-roofing may be made online, in person or via telephone at 303-271-8260.
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Permits
Building permits may be submitted electronically and paid for online after the process is completed.
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Permit Process
Learn how to search for Jeffco permits and active cases.
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Plan Submittal Requirements
Here you'll find all the requirements you need to submit a successful building plan.
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Re-Roofing
The Jefferson County Building Safety Department has all the information you need to have the roof on your home or business repaired or replaced successfully.
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Online Services
See building safety online services.
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Documents
Find documents related to building safety.
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Contact Us
Use this form to contact the Building Safety division.