The Manhattan we cover, building by building.

An automated estimate of what an apartment is worth, built from recorded sales — condominiums priced against comparable closings, cooperatives against bedroom-typed medians in the same building and corridor.

Building-level coverage of the towers that define luxury Manhattan — sponsor history, board posture, flip taxes, maintenance trends, recent sales, the actual mechanics that move price. The reference layer behind every Roebling Team transaction.

Manhattan's price-relevant geographies treated as the markets they actually are — Billionaires' Row, Upper East Side prime, West Village, FiDi, the new condo corridor along Madison. How each corridor's inventory, buyer mix, and price trajectory differs.

A special report on when New York City's 421-a tax benefits expire and what happens to pricing as they do. An estimated 54,390 condominium and co-operative apartments in 3,610 buildings reach first full taxation between FY2023 and FY2040, in two waves, with the exposure concentrated in Brooklyn and Queens by building count and in Manhattan by size.

Median condominium price per square foot and cooperative price per room — Manhattan-wide, across Brooklyn and Queens, by neighborhood, and along the named Park and avenue corridors — each series carrying its recorded sale count and its change over one year, since 2022, and since 2016.

The developers behind Manhattan's luxury apartment buildings — Extell, Related, Zeckendorf, Naftali, and the historic firms that built the prewar canon — what they built, how those buildings have traded since, and what their track records tell a buyer.

The architects whose work defines the buildings we cover — Rosario Candela, Robert A.M. Stern, Christian de Portzamparc, Jean Nouvel, Bjarke Ingels, Norman Foster, the Costas Kondylis era. Profiles tied directly to the inventory in our building library.

The managing agents who actually run Manhattan's co-ops and condominiums — which buildings each one operates, and the flip-tax, sublet, and fee policies that determine what a transaction costs and how long it takes.

Every recorded closing at $4 million and above in the corridors ringing Central Park — Central Park West, Fifth, Park, Central Park South, and Billionaires' Row — filterable by building, ownership type, price band, and period.