555 West End Avenue is a residential project without equal in New York City. Inside a spectacular and meticulously restored architectural gem is an entirely new structure designed by Tamarkin Co. Magnificent three- to five-bedroom residences bring together the very best elements of prewar co-ops, condominiums, urban lofts, and townhouses—extraordinary volumes with gracious floor plans and impeccable detailing. Located one block from Riverside Park and surrounded by the grand apartment houses of prestigious West End Avenue—the Upper West Side’s answer to Park Avenue—555 West End Avenue’s historic Beaux-Arts architecture has character, authenticity, and an old-world sense of craftsmanship and detail that rivals the most exclusive cooperatives on Riverside Drive and Central Park West.Its original incarnation as a private school has enriched 555 West End Avenue, a recognizable landmark within the Riverside-West End Historic District, with outstanding architecture, soaring ceiling heights, towering windows, and a physically robust structure. Tamarkin Co. has maintained the spirit of the building’s unique history, impeccably restoring original details like beautifully carved stone façade elements and limestone window bays and weaving architecturally sumptuous spaces into brand-new residences with exceptional character and extraordinary volume and scale.