Quote:
Originally Posted by H2O
In the proposal, connection requirements are removed from Duplex and locational requirements are removed from 2-unit. So anything goes in either and should include internal units if fire code is met. The difference between the two uses is that Duplex is unlimited square footage and has a minimum lot size of 5,750 sf. Two-unit does not have a minimum lot size (as little as 2,500 sf if HOME2 passes) but restricts one unit to 1,100 sf.
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They removed a lot of the requirements on duplex (e.g. length of connection) but they're still required to be connected. They have to have a common roof and be a connected building with no gap
(1)The two units must have a common roof.
(2)At least one of the two units must have a front porch that faces the front
street and an entry to the dwelling unit, except that units located on a
corner lot must each have a front porch that faces a separate street and an
entry to the dwelling unit.
(3)The two units may not be separated by a breezeway, carport, or other open
building element.
They removed the _location_ requirements on ADU (the ADU could now be in front, and could be the old existing, small house). But they still require them to be unconnected.
(4)Each dwelling unit must be in a separate structure.
(5) The dwelling units may be connected by a covered walkway.
There's no zoning requirement on how disconnected they have to be, but I think by fire code it may have to be 10 feet.
So yeah, not attached or internal ADU (in 2 unit). You can do a duplex instead, but then you have to meet any additional requirements thereof (porch requirements, lot size, lot width, etc.)
https://services.austintexas.gov/edi....cfm?id=418021