Echo Investment are getting their teeth into the office space market. Michał Sołowow\'s company holds sites for new developments throughout Poland in the near futureThe Warsaw borough of Mokotów is generating the greatest interest as an office district, which is why Echo Investment are now getting in on the act. In 2005 the Wan-11 company, in which Echo Investment holds half of the shares, commissioned a 20,400 sqm building on ul. Postępu. And this is not all, with an Echo-owned plot waiting at the intersection of ul. Domaniewska and ul. Postępu. It is not yet known when construction work will get underway. According to Waldemar Lesiak, director of Echo Investment\'s Office Projects Department, the Wola and Żoliborz districts rank as highly as Mokotów on the list of Warsaw\'s best office locations. Echo already has one project - Athina Park - in Zoliborz on Wybrzeże Gdyńskie, a complex made up of 4 buildings with a total useable space of 14,000 sqm. This is a niche project at