250_delaware_avenue | location | united_states <tsp> 250_delaware_avenue | buildingstartdate | january, 2014 <tsp> 250_delaware_avenue | floorarea | 308438 (square metres) <tsp> 250_delaware_avenue | floorcount | 12 <sep> the delaware north building is a mixed-use development in buffalo, new york the 12-story, 330,000-square-foot mixed-use building features class a office space, a 120-room westin hotel, ground level retail, a 7,000-square-foot outdoor courtyard, and an adjacent structured parking ramp delaware north's world headquarters anchors the building 
250 delaware avenue. united states. has 12 floors covering an area of 30843.8 square metres. and had a building start date of january 2014.the delaware north building is a mixed-use development in buffalo, new york