Constructing a House Hack

[Justin Holley]

Hello Biggerpockets Members,

My wife and I just moved to a new area and we would like to house hack with a duplex or 4plex.  However, we moved to a small town and there really isn't very many duplexes or 4plexes in the area let alone for sale.  However, there are some that have been built in the downtown area amongst the single-family homes that are quite nice and seem to be rented.  Zoning is flexible within the town (it's a tourist/resort town and the city encourages additional units on lots).  My question is basically, what's the math on constructing a new duplex, etc in which to house hack?  What's the math, does it make sense, etc?   Thank you for the help!