ADU Permit Requirements in El Paso County, CO
Pikes Peak Regional Building Department (PPRBD) is the building authority for unincorporated El Paso County and several incorporated cities in the region (Colorado Springs, Fountain, Woodland Park, Manitou Springs, Monument, Green Mountain Falls, Palmer Lake). PPRBD reviews plans, issues permits, and performs inspections for building, electrical, mechanical, plumbing, gas, and roofing across the entire region. Codes in force: 2023 Pikes Peak Regional Building Code (PPRBC), based on 2021 IRC with local amendments effective June 30, 2023. Local amendments include 42 psf ground snow load, 30 inch frost depth, Climate Zone 5 insulation (R-49 attic / R-20 walls per 2021 IECC), ASCE 7-16 wind design, Wildland-Urban Interface (WUI) Class A roof and ignition-resistant siding for Black Forest and Falcon areas, and radon-resistant construction per IRC Appendix F. PPRBD uses a valuation-based fee calculator at pprbd.org/Information/FeeCalculator rather than published flat fees. North office at 3939 Cordera Crest Avenue, Colorado Springs, CO 80924. Septic / OWTS permits handled by El Paso County Public Health at (719) 578-3199. Zoning, ADU verification, and driveway access on county roads handled by El Paso County Planning and Community Development at (719) 520-6300. Plumber and electrician licensing by Colorado DORA. Owner-builder permits allowed for owner-occupied primary residence.
By Joey, Founder · Last verified April 20, 2026 · How we research →
When you need a ADU permit in El Paso County
A detached accessory dwelling unit (ADU) requires building, plumbing, electrical, and mechanical permits from PPRBD. Confirm ADUs are allowed in the parcel's zoning district with El Paso County Planning and Community Development at (719) 520-6300. OWTS (septic) capacity must be reviewed by El Paso County Public Health at (719) 578-3199.
An attached ADU (in-law suite, basement conversion with kitchen, garage conversion) requires building, plumbing, and electrical permits from PPRBD. OWTS (septic) capacity must be reviewed by El Paso County Public Health at (719) 578-3199 if on septic.
ADU Permit Costs: El Paso County vs. Nearby
| City | Estimated Fee |
|---|---|
| El Paso County | N/A |
| Denver | $500 – $5,000 |
| Colorado Springs | $500 – $5,000 |
| Aurora | $500 – $5,000 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all El Paso County permit costs →
Zoning & HOA Considerations
ADU regulations vary dramatically by state and city. Many states (CA, OR, WA) have preemption laws that override local zoning restrictions. Check both state law and local zoning before designing.
If you live in an HOA community: hOAs have traditionally restricted ADUs, but state preemption laws in CA, OR, WA, and other states now limit HOA authority over ADUs. Check your state's ADU laws, your HOA may not be able to block construction even if CC&Rs appear to prohibit it.
Estimated Project Timeline in El Paso County
Here's a typical timeline for a adu project in El Paso County, CO:
Timeline is based on El Paso County's typical about 4 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Contact El Paso County's building department for current ADU permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller ADU projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in El Paso County can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for ADU permits in El Paso County is about 4 weeks. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About ADU Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read ADU Guide →