ADU guides · Austin, TX

Austin ADU guides: short answers, with sources.

Each guide answers one question first, then explains what the answer depends on. Rules and prices are checked as of October 2026.

How much does an ADU cost in Austin?Published ranges by type, fees and how to compare quotes. What are Austin's ADU rules after HOME?Three units per lot, coverage, addresses and what still limits you. Does Texas have a statewide ADU law?What SB 673 proposed and why it matters locally. Can an HOA stop an ADU in Austin?Deed restrictions, architectural review and how to check. How much rent can an ADU make in Austin?Market averages and what sets your unit's rent. Are suburban ADU rules different?Round Rock, Cedar Park, Pflugerville and Georgetown compared.

Prefer an answer for your own address?

Send your address and we will tell you what your lot can hold. The lot check is free. We work in Austin, Round Rock, Cedar Park, Pflugerville and Georgetown.

Free, with no obligation. We use these details only to reply about your project.