51 E 90Th St

A boutique prewar cooperative of ten stories and 18 units, constructed in 1926 and anchored in Carnegie Hill near Central Park. The building exhibits classic prewar architecture with high beamed ceilings, hardwood parquet floors and traditional mouldings that appear throughout many residences. Units are predominantly two-bedroom layouts—original Classic Six plans have frequently been adapted into two- and three-bedroom arrangements, some with formal dining rooms, windowed kitchens, and separate maid/service rooms reconfigured as offices or dens. Common interior features include an elevator, foyer entrances, substantial closet and storage space, a basement laundry room in addition to allowance for in-unit washer/dryers (board approval), and a live-in superintendent. Exterior provisions include limited private outdoor spaces of varying sizes, building storage and bicycle racks. Full-time doorman service provides concierge-style entry and security; the coop permits pets (with board approval), pied-à-terre ownership in many cases, and allows financing up to typical percent limits depending on the unit. The locale is a defining asset: tree-lined blocks between Madison and Park Avenues, immediate access to the Engineer’s Gate of Central Park and the Reservoir, proximity to Museum Mile, upscale shops, restaurants, top schools and subway connections. Practical building notes disclosed to buyers include upcoming mandatory window and plumbing fixture updates required by the co-op.