Marriott could double its room count in Europe by 2015, according to plans announced Tuesday at the International Hotel Investment Forum in Berlin. The company currently has 174 hotels in Europe, offering 40,000 rooms. The development pipeline includes nearly 30 properties, including three to open this year: the Renaissance Moscow Monarch Center Hotel, the Courtyard by Marriott Budapest and the JW Marriott Hotel Ankara, in Turkey. Two new brands also are slated for the company's European expansion: the boutique-lifestyle Edition, a collaboration with Ian Schrager; and the Autograph Collection, which consists of upper-upscale and luxury independent properties. For its part, Starwood Hotels & Resorts Worldwide announced plans to open 50 new hotels in Europe, Africa and the Middle East by 2012. Fourteen will open this year, including the recently unveiled 209-room Sheraton Bratislava hotel in the Slovak Republic.