Proven track record
since 1991

Partner for the sustainable city

Sitas identifies and develops urban regeneration and expansion opportunities. Sitas brings equity providers, local authorities and other stakeholders together, defines their shared values and common objectives. The Sitas platform manages infrastructure, construction and operations. 

Sitas is a trusted partner to private and public investors and operators to create branded neighbourhoods and creative urban regeneration. We have extensive experience in addressing any challenge related to funding, masterplanning and realising new parts of the sustainable city, including managing gentrification effects.

Sitas was founded in 1991 by Kris Verhellen, still its managing partner today.


From 1994 till 2005, Sitas was a consultant to Leasinvest SA, Leasinvest Real Estate SCA and their affiliates, specialising in finance lease, structured finance, vendor leasing and real estate investments.


From 2005 till 2021 Sitas BV was the managing director of Extensa Group, a real estate developer and investor, realizing projects in Belgium, Luxemburg, Slovakia and Turkey. Among the flagship projects are Tour & Taxis in Brussels (a multiple award winning mixed use regeneration project) and Cloche d’Or in Luxemburg city (a mixed use extension to the city fabric) and the Bomonti regeneration area in Istanbul (Bomonti Apartman and Bomonti Modern Palas). Extensa Group generated a net profit in excess of 250m€ during this period.


Kris Verhellen commenting on projects with HRH the King of the Belgians and the Grand Duke of Luxemburg.
7 October 2019


With the chairman of the delegation of the City of Chengdu (China)
2 May 2019