Built in 1909 by Pickering & Walker, this distinguished prewar cooperative embodies the quiet assurance of Park Avenue at its best - gracious proportions, classical detail, and enduring style. Apartment 7D presents a refined, turnkey opportunity in one of the Upper East Sides most established addresses. One arrives via private elevator into a welcoming foyer that leads to a sunlit, south-facing living room anchored by a working wood-burning fireplace. Crown moldings, high ceilings, and beautifully maintained hardwood floors lend warmth and architectural integrity throughout. The adjacent dining room is designed for effortless entertaining, complete with a discreet custom bar and a five-room Sonos system. Beyond a modern composition of glass and cast iron, the windowed kitchen presents a crisp counterpoint to its prewar surroundings. Sleek white cabinetry, stone countertops, and fully integrated appliances by Miele and Wolf offer contemporary precision without disturbing the apartments composure. Nearby, a den with a built-in desk niche accommodates correspondence, contemplation, or the first coffee of the morning. The primary bedroom is serene; a retreat set apart from the public rooms, framed by oversized windows with architectural views that remind one precisely where one lives. An adjoining nook, adaptable as nursery, guest alcove, or expansive dressing room, enhances the suites flexibility. The windowed bath features a deep soaking tub, radiant heated floors and generous storage. In a separate wing, the secondary bedroom enjoys welcome privacy, accompanied by a full guest bath with shower; a consideration that does not go unnoticed by overnight visitors. 829 Park Avenue is a full-service cooperative offering a 24-hour doorman, live-in superintendent, private storage, a state-of-the-art fitness center, a residents only private courtyard and pet-friendly policies. Moments from Central Park and Madison Avenues boutiques, and the UESs most storied restaurants. 50% financing is permitted; 2% flip tax; current assessment ending June 2026 has been paid in full by the seller.