Can I build an ADU in Austin?
Answered by AskBaily Editorial · Updated
Short answer
Yes in most SF-1, SF-2, and SF-3 zoning classes. Austin HB 3546-influenced reforms and the Residential in Residential (RIR / HOME Initiative) zoning changes through 2023 legalized additional ADU configurations on smaller lots. The ADU must meet setback, impervious-cover, compatibility, and McMansion Subchapter F rules. Detached garage-apartment ADUs and backyard-cottage granny flats are the most common.
In detail
Yes in most SF-1, SF-2, and SF-3 zoning classes. Austin HB 3546-influenced reforms and the Residential in Residential (RIR / HOME Initiative) zoning changes through 2023 legalized additional ADU configurations on smaller lots. The ADU must meet setback, impervious-cover, compatibility, and McMansion Subchapter F rules. Detached garage-apartment ADUs and backyard-cottage granny flats are the most common.
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