By Carter B. Horsley

This magnificent and impressive apartment building is a twin with 817 on the southwest corner at 100th Street and they share the same avenue blockfront. The primary differences are that this building has a slightly darker red-brick facade, the ground floors are a bit different because of the street's slope and 801 West End Avenue has a canopied entrance and 817 West End Avenue does not.

Both buildings have two extraordinary, Art-Nouveau-style, roofline cartouches that resemble peacock display of feathers.

They also have dry moats with large railings and three-story limestone bases, the top stories of which are rusticated. The step-up, canopied entrances are flanked by pilasters and lanterns and lead to very handsome, step-up lobbies. The building has a doorman, permits protruding air-conditioners and has consistent fenestration. It has no garage.

The 12-story building was erected in 1918 and converted to a cooperative in 1980. It has 73 apartments.

This is a very handsome section of West End Avenue that is convenient to public transportation and one block from Riverside Park. Neighborhood shopping is nearby and steadily improving as high-end retailers continue to advance up Broadway.