Hamburg-based Alstria office REIT reported a 170% increase in revenues to EUR 82.6 mln in its preliminary financial results for 2007. The company also reported a rise in net asset value to EUR 871 mln, which is up around EUR 473 mln (or 119%) compared to the previous year. According to the company statement, the NAV per share was EUR 15.55 at end-December 2007.