One of the biggest impediments to building in the cities in Summit is the permit process is fucked. Frisco is especially bad with permits taking months and months to go through for no real reason other than the guy in charge sucks.
We are considering building an ADU on our property but FKNA the costs are ridiculous for that too. Maybe I'll just put a tiny home in the back yard. ha. Would be nice to rent out the main house when we retire and have just a little ADU to stay in when we come visit.