AustinADU

ADU Rules & Activity in 78704

Analysis of Accessory Dwelling Unit potential in Austin ZIP Code 78704

12
Total ADUs Permitted
12
Built in Last 2 Years
35ft
Max Height Limit

Check Eligibility for a Property in 78704

Recent ADU Permits in 78704

503 E MARY ST BLDG 21/14/2026

BLDG 2: New wood framing ADU and 11-0 x 22-0 pool at the backyard of existing home. ADU will include one unconditioned powder room one full bath a small kitchen and living space.

1718 S 5TH ST1/5/2026

New 2-story ADU 1br/1bath w/garage covered porch and roof deck

503 E MARY ST BLDG 21/5/2026

BLDG 2: New wood framing ADU and 11-0 x 22-0 pool at the backyard of existing home. ADU will include one unconditioned powder room one full bath a small kitchen and living space.

1718 S 5TH ST12/17/2025

New 2-story ADU 1br/1bath w/garage covered porch and roof deck

1718 S 5TH ST12/17/2025

New 2-story ADU 1br/1bath w/garage covered porch and roof deck

Building a Backyard Home in 78704

ZIP code 78704 is seeing increasing interest in Accessory Dwelling Units (ADUs). Under the Austin HOME Initiative, any residential property in 78704 with a lot of at least 2,500 sqft can build:

  • Up to 3 residential units per lot
  • ADUs with no size limit (subject to 40% coverage)
  • Two-story units up to 35 feet tall

Use the search tool above to verify the specific zoning and lot size for any address in 78704.

Learn More About Austin ADUs