Over the last three years or so, the one-story building at 451 Marlborough Street in Back Bay has been transformed into an eight-unit luxury condo rising to some five floors. The largest of the new spreads is Penthouse 5, recently listed by Tracy Campion. It's a 5,797-square-foot duplex with five bedrooms and three and a half bathrooms. There's also outdoor space (you have to imagine it, as all we have are renderings for now—the building won't be done until later this year) and the penthouse comes with three garaged parking spaces. Boston firm Hacin + Associates designed the building, dubbed Four51 Marlborough, to blend in with its older surroundings: "The project," according to the firm's website, "reinforces the character and texture of historic Marlborough Street through its use of brick,
zinc, precast limestone and black steel windows, materials found throughout the Back Bay." Penthouse 5 is asking $9,995,000. If that's too rich for your blood, Penthouse 4, a much smaller unit at barely 2,000 square feet, wants a mere $4,200,000. More on this developing story as events warrant...
· Website: Four51 Marlborough [Hacin]
· Boston's Top Broker on 1 Dalton, $20M Condos, Foreign Money [Curbed Boston]