The first skyscraper planned for downtown Pittsburgh in 18 years was recently unveiled. The $170 million, 23-story Three PNC Plaza will feature a 10-story hotel with 185 rooms, 30 top-floor condos, 360,000 sf of office space, a restaurant, and first-floor retail space. Oxford Development of Pittsburgh is the developer; the design of the 752,000-sf high-rise is by local firm Astorino and Gensler, of San Francisco. Environmental construction consultant Paladino and Co., Seattle, says the Building Team will use a minimum of 50% recycled construction materials, among other sustainability initiatives. Groundbreaking in November; scheduled completion: late 2008.