Just type in an address and it pulls up the lot size, zoning, permit history, and tells you if you can add units. It covers about 850K properties in the Austin metro.
Has anyone here actually gone through the process of building one? I'm looking at a 7,000 sqft SF-3 lot and trying to figure out if the numbers work. What did you end up spending and how long did permitting take?
If STR is part of the numbers, note that in Austin, ADUs built after October 1, 2015 are limited to 30 total short-term rental calendar days per year. It also matters whether the additional units are permitted as ADUs or as primary dwellings. That classification is determined during permitting and can materially affect how the property can be operated.
If you're counting on STR income, confirm the intended unit classification with a land use consultant or Development Services early.