This red-brick, 17-story apartment building at 245 East 24th Street is known as Tracy Towers, but it should not be confused with the much more famous apartment complex of the same name with a different spelling in the Bronx that was designed by Paul Rudolph.

This building was erected in 1961 and was designed by Lawrence & Rothman, a firm that also designed 50 Sutton Place South.

It is a cooperative with 162 apartments. It is also known as 421-7 Second Avenue.

It is pet friendly and has a doorman and a roofdeck but no sidewalk landscaping and no garage. It has discrete air-conditioners.

The building has a canopied entrance flanked by lighting sconces. It has a few terraces but not balconies.

Paul Rudolph is widely regarded as one of America s greatest architects and Tracey Towers at 20 and 40 Mosholu Parkway in the Bronx where erected between 1967 and 1972 in the air rights over a storage yard for subway trains.

The towers have curved exterior walls because the "site plan and traffic movement dictated an easing of the corners" and they were also curved "to lead the eye around the towers" and to "give a heightened sense of security to the occupants of a very high building."