251 West 89th Street (The Admaston)Recorded sales & closing prices

The Admaston trades as a large-apartment pre-war condominium rather than as a full-service luxury building, and that is the right frame for pricing it. There is no doorman-and-amenity package to underwrite; what a buyer is paying for is square footage, ceiling height, Blum-brothers architecture, a Broadway-corner location one block from the 86th Street express station, and — decisively — condominium ownership in a corridor where almost everything of comparable age is a co-op.

Because the building converted with a fully tenanted rent-regulated roll, renovation vintage drives price dispersion more than floor or exposure does. Two apartments on the same line can be a generation apart in condition. Per-square-foot comparisons across the building are correspondingly noisy; same-line, similar-condition comparables are the only anchor worth negotiating against. Buyers should also underwrite the carrying cost honestly — a staffed building with a heavy payroll line and an active capital program is not a low-common-charge proposition, and the current tax bill on the specific unit belongs in the analysis alongside it.

Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.