The Warren Street Loft is a private residence in a former manufacturing space in New York City’s SoHo neighborhood. A 3,500 square foot loft space in this circa 1860’s building was converted into a home for a family of five with a gallery for pieces from the owner’s collection of artwork. The design maximized the openness of the space while still creating discrete and intimate areas. Interior walls were stripped away to reveal original load-bearing brick walls. New walls were designed to appear as though floating, by placing them six inches out from the exterior walls and ceiling. This approach honors the original building by clearly distinguishing it from anything newly added. The new interior architecture is read as a diagonal “insertion” into the historic structure, expressing the dynamic interaction of Hudson Street as it bisects the dominant Manhattan street grid adjacent to the building. The resulting floor plan has two axes: one following the north/south orientation of cast iron columns and perimeter walls and the other following the diagonal of the avenue. This geometric overlay opens the interior and channels daylight further into the home.