On a vintage block in the Buena Park section of Uptown, a developer has converted an extralarge red brick and limestone apartment building into spacious condominiums. But to provide belowground parking beneath the World War I–era six-flat at 742-748 West Buena Avenue, Aidan Development first had to construct a new steel substructure to support the building. Now the 90-year-old building "will hold up like a new high-rise," says Aidan Dunican, the head of the company.

Each of the six units in the three-story building has three full baths and four bedrooms (with a sitting room off the master bedroom); an oversize great room whose lobes accommodate the living room, the dining room, the kitchen, and other areas; and a four-season sun porch. In all, each unit has about 3,500 square feet, as well as three balconies. A parking space is included in the purchase price; one additional space is available for $35,000. Anne Ewasko is the Rubloff Residential agent representing the developer. All six units were scheduled to be ready for move-ins by early January.  

Photograph: Courtesy of Rubloff