A rare, sun-filled, full-floor corner loft at 142 Fifth Avenue — where historic Beaux-Arts character meets refined modern living. This south-facing distinguished Flatiron residence offers 3 bedrooms, 3.5 bathrooms, and over 2,700 square feet of thoughtfully arranged space designed for both gracious living and privacy. The keyed elevator opens directly into the apartment, revealing a luminous interior defined by soaring twelve-foot ceilings and an extraordinary array of windows. Fifteen oversized windows (56” x 96”), recently replaced with QuietTech glass, flood the home with natural light while ensuring exceptional sound insulation — creating a serene retreat above the city. The layout balances openness with purpose. Off the central hallway, one bedroom (with en suite full bath) is positioned apart from the main living area, across from a tasteful, elegant half bath and a vented laundry room. A large, soundproof door encloses the media room and two additional bedrooms, including the primary suite. This thoughtful separation creates an ideal environment where children can enjoy the media room while guests are entertained, or where private moments can be preserved without sacrificing connection. The primary bedroom offers both comfort and functionality, featuring a spacious nook that can serve as a home office or an additional seating area, adding versatility to the home’s most private retreat. The open chef’s kitchen features a generous countertop with bar seating, combining style and function. It connects effortlessly to the living and dining spaces, making it an ideal setting for both intimate evenings and larger gatherings. Integrated Sonos speakers enhance the home’s ambiance for any occasion. With its sweeping proportions and abundant light, this loft presents an exceptional opportunity to showcase art, with walls and spaces thoughtfully designed to highlight collections and installations in a residence that doubles as an elegant gallery. 142 Fifth Avenue, a distinguished Beaux-Arts cooperative built in 1900, is home to just 20 residences across two connected buildings. Residents enjoy attentive service, including a full-time superintendent (who delivers packages to your door), porters, a service elevator, and a private intercom. The co-op allows subletting, parents buying for children, gifting, pied-à-terres, co-purchasing, central air conditioning, and financing up to 80%. On the ground floor, a premier Cole Haan store provides elegance, reliability, and a level of security — a rare distinction in a city where many buildings lack well-maintained commercial tenants. Located steps from Union Square and Madison Square Park, this home offers unparalleled access to the best of downtown living. Eataly, Union Square Greenmarket, and the boutiques of lower Fifth Avenue are all within steps, while excellent subway connections make the entire city easily accessible. A singular offering, this sunlit, full-floor corner loft blends scale, light, and historic detail with an intentional layout — an elevated expression of authentic Flatiron living.