Which New York City towers have active DOB filings?

4,870 filings describe a building of twenty-one storeys or more — 3.8% of every filing published here, with a median height of 33 storeys.

Height is read from the storeys a filing proposes, falling back to the storeys already standing when the work does not change them. Filings that record no height at all are not counted, so the true figure is a little higher. The catalog is a rolling window over recent Department of Buildings activity rather than the city’s whole history, which is why the figures above are given as shares — a share survives the window, a count does not. How the record is built.