Valentine’s Day may have just passed but the backyard of this Gowanus townhouse looks romantic for any day of the year. Decked out with greenery, tea lights and a mini guest house, it’s a nice perk to the historic brick three-bedroom, two-bathroom triplex townhouse at 112 14th Street. The $1.495 million pad is plenty charming inside, too, with exposed brick walls, four fireplaces and high ceilings throughout.