Boulder County government offices are closed Wednesday, June 19, in observance of Juneteenth. Primary Elections Vote Center locations are open.


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The Boulder County Community Planning & Permitting office at 2045 13th St., Boulder is open to the public on Monday, Wednesday, and Thursday from 8 a.m. to 3 p.m., and on Tuesday from 10 a.m. to 3 p.m. Appointments are available on Tuesday but are not required. Schedule an appointment.

Boulder County BuildSmart

Boulder County BuildSmart, the county’s residential green building code, requirements affect all new residential construction and additions in unincorporated Boulder County.

The Boulder County BuildSmart Regulations encourage high-performing, sustainable residential development, and redevelopment in the unincorporated areas of Boulder County by promoting development that will: create energy efficient structures that reduce both the production of greenhouse gases from residential buildings and the amount of material sent to landfills, conserve water and other natural resources in the homebuilding process, and insure proper indoor air quality. View the BuildSmart Checklist.

Boulder County BuildSmart also furthers the goals and measures outlined in the Colorado Climate Action Plan and the County’s Environmental Sustainability Plan. The production and efficient use of energy will continue to play a central role in the future of Colorado and the nation as a whole. The development, production, and efficient use of renewable energy will advance the security, economic well-being, and public and environmental health of Colorado, as well as contributing to the energy independence of our nation.

The current Boulder County BuildSmart regulations include numerous options for compliance, providing additional flexibility in selection of the most cost-effective design for each project. Please contact Building Safety & Inspection Services via the Ask a Building Official form or call 303-441-3926 to learn about your options.

RESNET (Residential Energy Services Network) Accredited HERS (Home Energy Rating System) Providers

View a list of Home Energy Rating Providers for Boulder County.

Zero Net Energy

Boulder County BuildSmart Zero Net Energy is currently required for new homes above 5,000 square feet of conditioned floor area.

Email Updates

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View training-opportunity offerings by the Colorado Green Building Guild, Passive House Institute U.S., and other green building organizations to help meet your training, workshop, and seminar needs.

Construction & Demolition Recycling Resources

See Construction & Demolition Recycling Resources for information on how to successfully reuse and recycle deconstruction materials.

Contact Us

Building Safety and Inspection Services

Contact Plans Examiners

Email Building Inspectors:

Courthouse Annex Building

2045 13th St.
Boulder, CO 80302


8 a.m. to 3 p.m. Monday, Wednesday, Thursday
10 a.m. to 3 p.m. Tuesday
Map and Directions

Mailing Address

Building Safety and Inspection Services
PO Box 471
Boulder, CO 80306
Building Safety and Inspecition Services website