Irwin Stein, a Philly native and Penn grad, designed the home for himself, complete with a swirling spiral staircase and a ...

This stylishly updated duplex apartment in a brownstone has high ceilings, charming original details, and a private rear yard ...

Carefully remodeled, the 2,271 square feet of main level and finished basement includes an upper-level loft built into the peak of the building frame, accessible by an unusual spiral staircase.