Permit Clock / Austin / Two-unit and ADU
How long do two-unit and secondary-apartment permits take in Austin?
New two-family buildings and secondary apartments (Austin permit class codes 102 and 103). Austin's backyard units and duplex-style second homes are filed under these classes. Window: issued Oct 20, 2025 to Oct 19, 2026.
Typical wait (median)127 days
Middle half of permits66–300days
Slowest one in ten wait at least361days
Permits measured167issued in the window
A new single-family home over the same window had a median of 50 days (details).
By ZIP code
| ZIP | Median days | Middle half | Slowest tenth | Permits |
|---|---|---|---|---|
| 78745 | 48 | 32–127 | 278 | 50 |
| 78721 | 361 | 361–364 | 579 | 27 |
ZIP codes with at least 25 permits in the window, fastest first.
Austin's issued-permits feed only contains permits that were issued, so applications still under review are not counted. Method.
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