Quintessential Park Avenue Elegance This stunning 10-room corner duplex at 812 Park Avenue is the epitome of refined living. With every room overlooking either Park Avenue or the picturesque charm of 75th Street, natural light fills the home throughout the day. The gracious entertaining spaces radiate off the gallery, including an exquisite corner living room with double exposures, 10.5' ceilings, wood-burning fireplace, and herringbone floors. The adjacent dining room, nearly square in proportion, provides the perfect setting for intimate gatherings or grand dinner parties. A richly appointed library, complete with a wet bar and powder room, offers a sophisticated retreat. The expansive and beautifully updated eat-in kitchen has been recently updated, with peaceful views of the charming townhouses to the north and light streaming in through 3 oversized windows. The kitchen and adjacent butler's pantry are furnished with top-of-the-line appliances, custom cabinetry and marble countertops. There is plentiful storage and 2 dishwashers. A grand, sweeping staircase, one of the hallmarks of this building, leads to the private quarters. There are 3 principal bedrooms, each with an en-suite bath and spacious closets. The corner primary suite features abundant natural light from its double exposures, a wood-burning fireplace, and a newly renovated blush marble bath with brass fixtures. 3 staff rooms, one of which is a large, windowed laundry room with a sink and an additional full bath complete this level. The residence features through-wall AC in the living room and library, and new central air conditioning in all other rooms. Built in 1927 by the legendary J.E.R. Carpenter, 812 Park Avenue is one of the Upper East Side's most prestigious white-glove cooperatives. Residents enjoy exceptional service, a beautifully landscaped garden courtyard, a state-of-the-art fitness center, and private storage. The cooperative allows 30% financing, welcomes pets, and permits summer work from May 15th through September 30th. A 2% flip tax is payable by the purchaser.