@Daniel Porter
I dove deep into Dallas ADU policies a while ago and from what I remember things are still in flux regulations-wise, but it seems that you can have ADUs for single-family homes, HOWEVER to get a CO for it, it puts a deed restriction on the property that requires it to be owner occupied. I emailed with someone working in dallas city hall about it to clarify because it didn't make sense to me. If you have an ADU, the owner has to live in either the main house OR the ADU, but if you ever move away you essentially couldn't rent out the house (even if you rented the house and the ADU to a single tenant) because of the deed restriction requiring the owner to live in one of the units for the other to be rented. I think that's a crazy policy but that's what it is.
Of course, I imagine people often don’t follow that policy and I would be surprised if someone could give an example of it actually being a problem. I’m super risk averse so I personally wouldn’t do it, but my aversion to risk is also probably why I’m not more successful 😜
Here’s a presentation from the zoning ordinance advisory committee in 10/2020 about it:
https://dallascityhall.com/departments/sustainabledevelopment/planning/DCH%20Documents/ADU/ZOAC_ADU_10.1.2020_FINAL.pdf