Evaluating a paired sale where the smaller building is legal nonconforming
Consider a seller offering two adjoining buildings on separate tax parcels. The 9-unit is a 1974 walkup, six 2-bedrooms at 950 and three 1-bedrooms at 775, totaling 8,025 a month. The 5-unit next door is older, four 1-bedrooms at 700 and one 2-bedroom at 875, totaling 3,675 a month. Combined that is 11,700 a month, or 140,400 a year gross. Say the asking price is 1.05M for the pair, with 700k assigned to the 9-unit and 350k to the 5-unit, and the seller raises the 9-unit's standalone price to 735k if the buyer only wants that one, to avoid marketing the smaller building alone. A buyer working this deal would confirm taxes, insurance, and utilities independently rather than trusting the seller's figures, then apply a realistic vacancy assumption and their own maintenance and management numbers to get to an NOI estimate. On numbers like these that often lands close to a 7 cap, though that figure stays soft until verified. The real question is usually zoning. If current zoning in that district requires 2,500 square feet of lot area per unit and the 5-unit sits on 9,000 feet, that is four units' worth of land carrying five units, meaning the building is grandfathered and a rebuild after a major loss could require a variance. Anything short of a written zoning determination from the planning department should be treated as informal. The decision comes down to whether the smaller building's extra basis is worth the rebuild uncertainty, or whether paying the standalone premium for the clean, conforming building alone is the more conservative path. A buyer facing a tight closing timeline should push hard for that zoning answer in writing before committing either way.