ADU Rules & Activity in 78603

Building a Backyard Home in 78603

ZIP code 78603 is seeing increasing interest in Accessory Dwelling Units (ADUs). Under the Austin HOME Initiative, any residential property in 78603 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 78603.