Step into a meticulously renovated duplex residence that seamlessly blends prewar elegance with contemporary sophistication. Welcomed by a private elevator landing on both floors, discover a thoughtfully designed space featuring 10 rooms: including a grand living room; separate dining area; chefs kitchen; open office space; 5-bedrooms and 3.5 bathrooms.

The combination residence boasts an exceptional layout that artfully separates living and entertaining areas from bedrooms, ensuring a perfect balance of privacy and serenity. A striking architectural steel staircase serves as a captivating focal point, enhancing the uniqueness and beauty of the residence while creating a remarkable 20-foot ceiling height that elegantly connects both floors.

The expansive double-wide living room, with an abundance of oversized windows, includes Northern, Eastern and Southern exposures, provides natural light throughout. Residence 2/3D features beautiful detailing and enjoys the elegance of an original marble mantle wood burning fireplace, coffered ceilings, hardwood floors, through the wall air conditioning,10'ceilings, all adding character to this inviting space.

Flowing seamlessly from the living room, a spacious open dining area leads to an oversized windowed chef's kitchen. This culinary haven is equipped with stainless steel appliances such as a Viking oven, 4-burner gas cooktop with center grill, Sub-Zero refrigerator/freezer including refrigerator/freezers draws, two sinks, microwave/convection oven, Bosch dishwasher, wine/beverage center, granite countertops with a countertop hot plate, full-size washer/dryer, and custom steel, wood and glass custom built-in cabinetry offering an abundance of storage. Not to be overlooked, is a windowed breakfast passthrough to enjoy your morning breakfast as well as a guest bedroom/den on the main floor with a full bath as well as a guest half bathroom.

On the third floor, discover a layout currently configured with 3 bedrooms and a spacious library-office space. The library stands out with a custom floor-to-ceiling sliding glass and steel sliding entry doorway including a beautiful marble mantle wood-burning fireplace, and three oversized Southern facing windows. This room can easily transform into another bedroom. The primary bedroom indulges with an ensuite stone bathroom and stunning architectural glass window covers, creating a tranquil ambiance for a restful sleep and a peaceful start to your day.

Built in 1909, 829 Park Avenue is a luxury pre-war cooperative offering 5-star amenities, a stunning lobby entrance including 24/7 doormen and a live-in resident manager to always assist in all your needs. Residents enjoy a state-of-the-art fitness center and a central laundry room. Residence 2/3D enjoys a large dedicated private storage unit which transfers with purchase. This prime Upper East Side location just blocks from Central Park and Madison Avenue's boutiques, galleries, museums, restaurants, and eateries, enhances its appeal. Convenient transportation options make all areas easily accessible. The building is pet friendly, permits financing up to 70% of the purchase price, with a low 1.5% flip tax associated.