ISA creates skinny metal-clad apartment building in Philadelphia

American studio ISA has used a range of strategies to maximise space, light and views in the metal-clad Signal House, which rises from a slender urban lot.
The multi-level apartment building is located in Philadelphia's Fishtown neighbourhood, a transitioning area that has been attracting creative types and urban professionals.
ISA has created a slender residential tower in Philadelphia
Local firm ISA, or Interface Studio Architects, designed the Signal House to respond to its context, described