Find the most up to date Minnesota Fourplex listings on the net! Our commercial property experts are here to guide you through the buying or selling process. Call Us Now 763-200-7653. Home; Search By City. Property Search. Search. By searching, you agree to the EULA Terms Agreement. ... Zoning. Business/commercial. Minimum Area for Fourplex. 15,000sf. Street Side (corner lot) 7' Minimum Area for Fiveplex. 18,500sf. Deck and Eave Setbacks (Chapter 17.138 BMC). Uncovered decks less than 30" above grade may encroach 50% into required setbacks. Minimum Area for Sixplex. 22,000sf. Eaves may encroach 30% into required setback, but must be at least 3' from. R1 Residential - Low Density. Minimum lot size of 1/2 (one half) acre, no more than two dwellings, residential structures shall not occupy more than a total of 25% of the zoning lot, minimum width at street line of 100 feet, set back minimum of 15 feet from front of property line, side and rear yards of not less than 15 feet from property line. Up-zoning R-1 lots, which already permit a house, a large Accessory Dwelling Unit, and a small Accessory Dwelling Unit, to the RD1.5 or RD 2 zone would allow the by-right construction of fourplex.