If you live in central Austin, the short answer is "probably ". ADU's have been allowed on most urban lots in Austin since 2015. That's why there aren't very many of them, but we are working to change that.

Properties zoned "SF-3" are allowed to build an ADU, but they are not allowed in some other residential zones.

Check your City of Austin zoning here

Site conditions and private deed restrictions can also prohibit ADU's. We provide a complimentary site evaluation that includes the deed restrictions on your property.