111 West 57th Street

111 West 57th Street is the most materially specific building in this collection — every single element has a named provenance. Studio Sofield designed nine-foot doors in macassar ebony or lacquer fitted with P.E. Guerin bronze hardware (P.E. Guerin was founded in 1857 and is the country's oldest architectural hardware firm; their pieces are specified by the White House and major museums). Doorknobs are custom-cast by P.E. Guerin in a silhouette that mirrors the tower's own profile. This level of specificity — hardware that tells the building's story — is the defining characteristic of Sofield's design philosophy.

The two-part building creates two fundamentally different design environments. Tower units (floors 17+) are full-floor contemporary lofts with 14-foot ceilings, smoke-gray oak herringbone floors, macauba stone accents, and the world's most commanding Central Park views. Steinway Hall units (14 residences in the restored 1925 landmark) are pre-war apartments with coved walls, stepped panel doors, formal dining rooms, gold-leaf terraces, and cast-stone urns. Some have private terraces with the building's original architectural elements still intact.

The bathroom specification is extraordinary: richly veined white onyx covers floors and walls entirely; William Holland antique polished metal freestanding tubs (a British maker at the top of the bespoke bath market); P.E. Guerin bronze fixtures. Buyers have the option to commission a bathtub carved from a single block of onyx — the ultimate expression of material maximalism.

The building's 1:24 slenderness ratio (world's thinnest skyscraper) means floor plates are approximately 59 by 75 feet. Every apartment is essentially a single corridor with rooms on either side, views in all directions, and no wasted circulation space.