The Edwin H. Armstrong House, in Yonkers in Westchester County, New York, is unusual for having achieved listing on the National Register of Historic Places and even designation as a National Historic Landmark, only to be demolished. Its subsequent removal from National Historic Landmark status is the only such occurrence for a New York State site.
It was the home of Edwin H. Armstrong, inventor of two circuits that are the basis of modern telecommunication systems, and also inventor of wide-band frequency modulation (FM) radio.
The home, a Queen Anne house, was located at 1032 Warburton Avenue in Yonkers.
It was designated a National Historic Landmark on January 7, 1976. It was demolished in 1983 after suffering fire damage. It was subsequently de-designated as a National Historic Landmark and delisted from the National Register of Historic Places in 1986.
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