@Sean McCluskey to answer your questions - I'm not particularly interested in SB 9's impact in high end areas, but yes there are commonly such duplex properties eg homes with carriage houses in Newport Beach.  

The property currently has 13 units.However, there is an opportunity to add an additional 2 units.Unit one: Originally a room that was converted into a common space.There is ample common space, so the unit can be converted back fairly easily.Unit two: This is storage in the garage of the carriage house.

@Adam Gusky Have you thought about houses with ADUs/Carriage houses as well?  

Currently the garage has old carriage style doors that swing open.

The real treasure was the detached carriage house that may be converted into a separate dwelling unit.Take Out The calculatorsPurchase price: $900,000Conventional loan (20% down at 2.7%)Down Payment: 180kMonthly Payment (PITI) $3600Potential Rental Income (Courtesy of Rentometer) $3200 (unit 2) + $2300 (unit 1) + $3200 (post-gut rehab carriage house) = $8700Estimated Monthly OPEX = water ($200) + repair / maintenance ($860)Projected Cash flow = ~$4040The Scope of workThis home was built in the 1930s and has certainly stood the test of time.

We would rent out our current home and the carriage house in back.Our current closing date is at the end of January.

It had a 450sf carriage house out back.

:) Cozy Carbon Ave Carriage Haus - UNIT BThank you!!

If you are dead set on needing privacy, you can find a single family home with some form of carriage house/ mother-in-law suite you can live in and rent out the rest.Earlier this year I did 6 part webinar series on house hacking in our higher interest rate environments with case studies and interviews with industry experts.

You will find the most ADU's in DFW are actually in older neighborhoods with old school "carriage houses" which is just a fancy word for garage apt.