250_delaware_avenue | buildingstartdate | january, 2014 <tsp> 250_delaware_avenue | cost | 110 million (dollars) <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 
the construction of 250 delaware avenue began in january 2014. worth 110 million (dollars) that has 30843.8 (square metres). and a floor count of 12.the delaware north building is a mixed-use development in buffalo, new york