Hamilton Heights/Sugar Hill HD: June 27, 2000 extension: October 3, 2001 Hamilton Heights/Sugar Hill Northeast HD: October 23, 2001 Hamilton Heights/Sugar Hill Northwest HD: June 18, 2002
Hamilton Heights/Sugar Hill Historic District and Extension: roughly West 145th to West 150th Street, Edgecombe Avenue to between Convent and Amsterdam Avenues
Hamilton Heights/Sugar Hill Northeast Historic District: roughly West 151st to West 155th Street, west of St. Nicholas Avenue to between Convent and Amsterdam Avenues
Hamilton Heights/Sugar Hill Northwest Historic District: roughly West 151st to West 155th Street, east of St. Nicholas Avenue to Edgecombe Avenue[2][6]
The Federal district was listed on the National Register of Historic Places in 2002.[1] The Federal district has 414 contributing buildings, two contributing sites, three contributing structures, and one contributing object.[7]