The reasons why Warsaw has been one of the world's premier places to invest over recent years are well known, but worth reiterating.

Unlike in most of the new EU accession states, property prices actually fell in Poland in 2003, during the lead up to EU membership in 2004. This left prices suppressed.

With the advent of EU membership the Polish economy seemed to find its feet and the nation grew in confidence.

As the biggest new member of the EU, in terms of both physical size and population, Poland attracted a wave of FDI, much of which, initially, found its way to Warsaw as the business, political and financial centre of the country.

The booming economy created jobs. Unemployment started to fall and wages rose. The result was more and more people had more money to spend. And people migrated to the cities (particularly Warsaw) in search of these new jobs, swelling the cities' populations.