520 West End Avenue
terrace house in Manhattan, New York
520 West End Avenue, also known as the John B. and Isabella Leech Residence, is a landmarked mansion on the northeast corner of West End Avenue and 85th Street, on the Upper West Side of Manhattan.
The house, built as a single-family residence, was built in 1892 as the residence of Isabella and John B. Leech. Leech was a prosperous cotton broker. The architect was Clarence F. True. At the time the Leech residence was built, West End Avenue was lined with homes belonging to prosperous families.
520 West End Avenue is a Romanesque Revival building, built of blocks of rusticated limestone on the first two floors with tan-colored Roman brick above. The detailing draws on Gothic Revival and Elizabethan Revival styles. Built on a corner lot, it was one of the largest homes on a street of townhouses. For a time it housed the Gordon-Winston School. It is now an apartment building.
Begin with the source’s own compact description: “520 West End Avenue” is terrace house in Manhattan, New York. The dossier treats that line as a proposition to test through West, Avenue and terrace, not as a finished interpretation.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 26, 2026. The linked authority identifier is Q4640142. Authority coordinates are 40.788, -73.978. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1892.
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This entry incorporates text from “520 West End Avenue” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.