Hilton San Francisco Union Square
Tower II & Plaza
This project involved the construction of a new 26-story hotel (370,000 s.f.) and the rehabilitation of five levels of the Hilton Plaza (96,996 s.f.). The work involved 383 guest rooms and about 150,000 s.f. of public spaces and back-of-house spaces. The hotel was covered with an aluminum facade as designed by Kawneer. The cladding on the first four levels was polished granite to match the Tabler Building. The structure for Tower II consisted of steel, but the decking was post-tensioned slab. The public spaces included catwalks and “scene-flys” and an elaborate first floor reception area.
Part of an overall $150,000,000 project, the project required renovation of a 20-story, 1,000 room hotel structure. The work was conducted over the years 1985 to 1988. The hotel was kept in full operation with the maximum loss of rooms limited to 300 at any one time. The renovations took place simultaneously at every level and involved a great deal of complicated detail work. In addition to complete renovation of interior finishes, installation of new HVAC system and complete renovation of the main kitchen, restaurant and bar, the building exterior was completely replaced. Existing concrete was covered with granite up four floors and the remaining sixteen floors received a new curtain wall.