Welcome to our Community! The Westchester luxury apartment house complex was conceived in 1929 by Washington, DC developer Gustave Ring.   Located at both 3900 and 4000 Cathedral Avenue,  Northwest,   The Westchester has always been one of the District of Columbia's  “Best Addresses”. If you are a resident of our community, click here to log into the private side of the web site. If you have not been notified of your login name and password, please complete the Login Request Form. Welcome home!