Staircase, Wood Tread, and Metal Railing Next to the steel-and-wood staircase, which leads to the roof, a patch of glass flooring lets sunlight filter down to the bedrooms.  Photo 4 of 5 in In Brooklyn, an 1890s Townhouse Is Reborn With Tons of Light and a Crisp Black Facade

In Brooklyn, an 1890s Townhouse Is Reborn With Tons of Light and a Crisp Black Facade

4 of 5

Next to the steel-and-wood staircase, which leads to the roof, a patch of glass flooring lets sunlight filter down to the bedrooms.