250_delaware_avenue | architecturalstyle | postmodern_architecture <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 
construction beginning in january 2014. postmodern art 250 delaware avenue has 12 floors with a total area of 30843.8 square meters.the delaware north building is a mixed-use development in buffalo, new york