This house has 2 apartments, and office can be 3rd apartment. See MLS 84189 at 316 Mason. Both houses together on one lot priced per 2015 appraisal at $127,500. Good rental investment potential in both dwellings on one lot.
This property is off market, which means it's not currently listed for sale or rent on Zillow. This may be different from what's available on other websites or public sources.

