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 
located in the united states. 205 delaware avenue. construction of which began in january 2014. has a floor area of 30843.8 square metres and is made up of 12 floors.the delaware north building is a mixed-use development in buffalo, new york