Ideal # of bedrooms and baths for 4-plex

[Austin V.]

I am going to be constructing a 4-plex to live in as an owner occupant with an FHA Loan. I was wondering what everyone sees as the best configuration for low turnover and help me to maintain a competitive edge. I was considering doing 4/2 1250 square feet units but am also considering 3/2 and possible even 2/2 or 2/1. I had a 4-plex in the Phoenix market that was a 1/1 and the turnover was very high and the tenant mix was very high maintenance.

Also curious if anyone has insight on a single vs 2-story unit?