ADU (Accessory Dwelling Unit) permit in Abilene, TX
Yes — you need a permit for adu (accessory dwelling unit) work in Abilene.
Construction of a new accessory dwelling unit (garage apartment, casita) — a new living unit is not exempt and requires a building permit; size limited to 50% of the primary structure
| Permit needed? | Yes |
|---|---|
| Where the line falls | Construction of a new accessory dwelling unit (garage apa… |
| Fee | Not in the ordinance — the department quotes it |
| Review time | Not in the ordinance |
| Code section | Section 2.4.4.1 |
| Based on | IRC 2021 as amended, adopted by reference (Sec. 8-581); ADU regulated by LDC Sec. 2.4.4.1 |
How to pull the permit
- Put together a site plan showing where the work goes, with dimensions.
- Apply through the Abilene building department.
- Pay the permit fee when the permit is issued. Work done before that isn't covered.
- Book each inspection listed on the permit as the job reaches that stage.
Either of you can pull it. When a contractor does the work, it is normally their job.
If you skip it
Abilene's code doesn't set a specific fine for this work. In practice the department can issue a stop-work order, and unpermitted work tends to surface during a sale, when the buyer's inspector or the title company asks for it.
Nearby cities, same job
Rules stop at the city line. If your lot is near a boundary, or you work across several towns, this is where they differ.
| City | Distance | Permit? | Where the line falls |
|---|---|---|---|
| Abilene | — | Yes | Construction of a new accessory dwelling unit (garage apa… |
| Midland | 142 mi | Yes | Building a garage apartment, casita, or other accessory d… |
| Killeen | 151 mi | Yes | You need a building permit to build an accessory dwelling… |
| Denton | 160 mi | Yes | No size threshold in the code |
| Waco | 162 mi | Yes | No size threshold in the code |
| Lewisville | 166 mi | Yes | No size threshold in the code |
Other work in Abilene
Questions people ask
I already built it without a permit. What now?
Abilene can issue a stop-work order and require you to apply after the fact, sometimes with an extra fee. Work that was covered up may have to be opened for inspection. Full walkthrough here.
Does unpermitted work cause problems when selling the house?
Often, yes. A buyer's inspector or the title company may flag it, and lenders can balk at financing a home with open or missing permits. What to do about it.