Corner Pre-War Residence on Madison Avenue in the heart of Carnegie Hill Providing a wide corner footprint and impressive expanse along Madison Avenue, this vast approximately 3,000 square foot four-bedroom three and one half, right room residence offers a level of scale and proportion coupled with wonderful natural light and charming views that is increasingly difficult to find. A proper entry gallery sets a clear sense of arrival and anchors a classic split-wing layout. Original pre-war details carry throughout, including beamed ceilings, steel casement windows, and original restored hardwood floors laid in herringbone and parquet patterns- timeless elements that define the home's character. The living room is the defining space- a large corner room facing Madison Avenue and 88th Street with windows on two exposures including a dramatic bay window with a built-in seat overlooking the Avenue. A full wall of custom floor-to-ceiling bookshelves, softly illuminated and accessed by a rolling library ladder, creates a striking architectural moment while adding both presence and function. The room is bright, well-proportioned, and quietly impressive, with clean southeastern light that transitions to a softer, cooler feel by afternoon. Nearly 50 feet of living and dining space creates a natural entertaining flow, with a gracious formal dining room that connects seamlessly to the windowed in eat kitchen. The kitchen is well laid out with stainless steel appliances and cabinets, generous counter space, and room for a proper breakfast table, enjoying a bright morning feel and lovely start of the day. The formal dining room comfortably seats ten for dinner and is a delightful space for hosting large and small gatherings. A discreet powder room is a highly coveted amenity for guest use. The northern wing is connected via a wide, hallway that joins the public and private domains. Four generous bedrooms, three full baths and a service kitchen/pantry space ideally converted into a windowed laundry room define the private wing. The primary suite is massive- the former living room of the H line apartment and most generous- and filled with morning light. Ample space for the addition of a windowed dressing room define this vast suite. Storage throughout is exceptional, with multiple closets lining the gallery and hallways. The entire home is graced with a timeless, subtle elegance. With the exception of one room, every single window faces the Avenue or Street- no compromised exposures. Built in 1937 and designed by William M. Dowling, this 16-story Art Deco cooperative offers a full-service experience with a 24-hour doorman, resident superintendent, stunning planted roof deck, new fitness room, central laundry, and storage. The lobby is redolent of the Carlyle Hotel and is the epitome of elegance. Ideally located between Madison and Fifth Avenue, moments from Central Park and neighboring the Guggenheim Museum. Subletting permitted after three years of ownership, subject to board approval (two out of every four years). Temporary capital assessment of $1,070/month through October 2027 supporting major building improvements, including facade and hallway upgrades.