Grez-Doiceau, also known as Graven, is a commune covering 55.5 km² with a population of 13,668 people. The community is slightly more female, with women making up 51% of the population. Residents tend to own their homes, with ownership at 76%, and the average age is around 41 years. The net annual income averages 22,479€, and households own about 1.6 cars each, which is higher than the Belgian average of 1.3. The majority of inhabitants are Belgian nationals, accounting for 92.5%, followed by small groups from France, Romania, Portugal, Italy, Spain, Germany, and others.
Housing stock in Grez-Doiceau is predominantly houses, representing 91.1% of dwellings, with only 8.9% being apartments or flat blocks. Most homes are open type houses, farms, or castles (56.7%), with semi-closed type houses making up 24.8%. Closed type houses account for 6.9%, while commercial houses and other building types form smaller shares. The average number of rooms per dwelling is about 6.3, slightly above the Belgian average of 6. Buildings in the area tend to be older, constructed around 1947.
Currently, there are 46 houses for sale in Grez-Doiceau. The average asking price for a house is about 1,303,805€, with the cheapest house listed at 150,000€ and the most expensive reaching 6,450,000€. Accessibility is straightforward with easy access to major highways: the A4/E411 - E25 motorway is a 6-minute drive from the center, and the A3/E25 - E40 - E42 is reachable within 13 minutes. Roads like the N25, N240, and N268 also serve the area.
Public transport includes several bus lines operated by De Lijn and TEC, connecting Grez-Doiceau to nearby towns such as Overijse, Wavre, and Jodoigne. Seven bus lines pass through the commune. Nearby train stations include Eerken/Archennes and Gastuche among others. For daily needs, residents have access to supermarkets including 2 Delhaize stores, a Match/Smatch, a Delitraiteur, and a Colruyt. Childcare facilities include eight nurseries and seven primary schools; however, there are no secondary schools within the commune. No shared mobility services like bike or car sharing exist here, nor are there charging stations for electric vehicles. Brussels Airport is approximately a 25-minute drive away.