San Francisco voters approved the continuation of a hotel tax increase to help fund a 300,000-square-foot addition to the Moscone Convention Center. The $191 million expansion, which is expected to be completed by February 2003, will bring total available space to 900,000 square feet. In Orlando, a land deal was signed in December allowing the Orange County Convention Center to continue an expansion plan that will double its size to 2.1 million square feet by 2003. A site has been chosen for the $125 million Buffalo (N.Y.) Convention Center. The center will have a 125,000-square-foot exhibit hall and a 30,000-square-foot ballroom.

Midwest Hotel Briefs: The 1,172-room Chicago Marriott Downtown celebrated its 20th anniversary with a $30 million renovation of its exterior, lobby, main entrance, meeting facilities, and retail space. A $10 million room upgrade project is now under way. The hotel offers 58,000 square feet of meeting space.

The Milwaukee Hilton has begun construction on a 20,000-square-foot water theme park. Called Paradise, the theme park is part of a $40 million expansion project to include a tower with 200 new guest rooms, 4,000 square feet of meeting space, and a skywalk connecting the hotel to the new Midwest Express Convention Center. When the project is completed in the summer of 2000, the hotel will have 750 guest rooms and 30,000 square feet of meeting space.

Chula Vista Resort in Wisconsin Dells, Wis., has begun the first phase of a $7 million expansion that will add 100 themed suites (bringing the total to 307) and 50 percent more conference space (bringing the total to 40,000 square feet). The indoor water park will double in size (to 30,000 square feet) and a 350-foot water slide will be added.

Six hotels are planned for downtown Cleveland, including a 144-room Marriott Residence Inn, a 298-room Doubletree Hotel, and a 160-room Inter-Continental Suite Hotel.

Denver Gets New Marriott: The 238-room Denver Airport Marriott opened recently with 6,000 square feet of meeting space, including a 3,400-square-foot ballroom. The hotel features a business center, concierge floor, and fitness center. All the hotel's guest rooms have been designed with the Marriott "Rooms that Work" concept. They have two-line phones with data ports, and specially designed work desks and lighting.

Short Takes: The Hyatt Regency Dallas is adding 183 guest rooms, a 32,000-square-foot ballroom, and a 44,000-square-foot exhibit hall.To be completed February 2000, the project will bring the room count to 1,123 and meeting space to 158,000 square feet. The 290-room Hilton Water-front Beach Resort in Huntington Beach, Calif., finished a $2.5 million renovation. The Philadelphia Mar-riott's expansion is on target for June completion, bringing the total guest room count to 1,410. The 124-room Union Station, A Wyndham Grand Heritage Hotel in Nash-ville, Tenn., is celebrating its 99th birthday with a major outdoor beautification project. The property offers 11,000 square feet of meeting space, as well as a concierge level.