PPA transformed this slender brownstone that had been divided into apartments into a single-family home, creating an entirely new house set between a restored street front and a newly designed garden façade. On the street, PPA preserved the historic spirit of the well-won entrance front, reestablishing lost brownstone details. To the rear, PPA designed a brick-and-stone neo-Federal façade with terraces on the setbacks. Inside, PPA relocated the single-run stair to the core of the building and created an atypical double-stretch of stair accessing a vaulted library inspired by James Wyatt’s Heveningham Hall on the parlor level. The stairs, leading to the upper level bedrooms, ascend beneath a stripped-down laylight on the fifth floor. Matthew Patrick Smyth decorated the interiors in shades of blue and brown.