ADU Permit Requirements in The Colony, TX
AHJ confirmed: City of The Colony Building Inspections Department, sole authority for ZIP 75056 (Denton County). City adopted 2024 ICC family codes (IBC/IRC/IPC/IMC/IFC/IECC) and 2023 NEC effective July 17, 2025. Online permits via eTRAKiT portal (tcol-trk.aspgov.com). Permit applications submitted via PDF email with $50 application fee; plan review 10 to 15 business days. As of Oct 1, 2025, permits also required for roof replacement, siding replacement, and foundation repair. Lake Lewisville shoreline neighborhoods (eastern shore) sit in FEMA Zone AE; lakeside lots require floodplain review. DFW airport vicinity (FAA Part 77 notice for tall structures, especially near Addison Airport approach). North Texas expansive clay soils drive post-tension slab foundations and require geotech for additions. ASCE 7 wind zone roughly 115 mph (3-second gust), tornado-alley periphery. Climate Zone 3A (warm-humid) for IECC envelope/HVAC requirements. Email address obfuscated by Cloudflare on the city site (not extracted to avoid fabrication). Construction hours 7 a.m. to 10 p.m. by ordinance.
By Joey, Founder · Last verified May 26, 2026 · How we research →
When you need a ADU permit in The Colony
Detached accessory dwelling units require all trade permits with full architectural plans. Zoning approval from the City of The Colony is required, and ADUs are not permitted in all residential districts. Contact The Colony Building Inspections at (972) 625-1756 before planning.
Attached or interior accessory dwelling units require building, electrical, and plumbing permits. Verify zoning compliance and rental restrictions with The Colony Building Inspections at (972) 625-1756 before starting.
ADU Permit Costs: The Colony vs. Nearby
| City | Estimated Fee |
|---|---|
| The Colony | N/A |
| Houston | $500 – $5,000 |
| San Antonio | $500 – $5,000 |
| Dallas | $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 The Colony 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 The Colony
Here's a typical timeline for a adu project in The Colony, TX:
Timeline is based on The Colony'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 The Colony'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 The Colony 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 The Colony 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 →