text: In Brussels, there are  of occupied office space; half of this is taken up by the EU institutions alone, accounting for a quarter of available office space in the city. The majority of EU office space is concentrated in the Leopold Quarter. Running costs of the EU institutions total €2 billion a year, half of which benefit Brussels directly, and a further €0.8 billion come from the expenses of diplomats, journalists, etc. Business tourism in the city generates 2.2 million annual hotel room nights. There are thirty international schools (15,000 pupils run by 2000 employees) costing €99 million a year.
  However, there is considerable division between the two communities, with local Brussels residents feeling excluded from the European Quarter (a "white collar ghetto"). The communities often do not mix much, with expatriates having their own society. This is in part down to that many expatriates in Brussels stay for short periods only and do not always learn the local languages (supplanted by English/Globish), remaining in expatriate communities and sending their children to European Schools, rather than local Belgian ones.
  Future
  Rebuilding
  In September 2007, then-Commissioner for Administrative Affairs, Siim Kallas, together with then-Minister-President of the Brussels-Capital Region, Charles Picqué, unveiled plans for rebuilding the district. It would involve new buildings ( of new office space) but also more efficient use of existing space. This is primarily through replacing numerous smaller buildings with fewer, larger, buildings.