Apartment buildings form much of Koekelberg’s housing stock. The municipality has 21,990 residents within 1.2 km², with an average age of 35. About 58% of residents are tenants, average annual net income per person is €12,680, and households have an average of 0.6 cars. Nationalities recorded locally are Belgian (70.7%), Romanian (8.2%), Moroccan (4.4%), French (2.3%), Spanish (2.3%), Polish (2%) and Italian (1.9%), with 8.4% from other nationalities. Buildings and flat blocks account for 63.6% of building types; closed-type houses represent 30.3%, commercial houses 5.4%, other types 0.4% and semi-closed houses 0.3%. Overall, 67.6% of the building stock is apartment buildings and 32.4% houses. Buildings date from around 1936 on average, and the average home has about 4.5 rooms.
There are 58 flats for sale. The average asking price is €256,207, while the listed prices range from €109,000 to €535,000. The R20 provides a main-road connection through Koekelberg. Driving from the centre, the R0 is about 5 minutes away and the A12 about 9 minutes away. The A12 connects Brussels with Boom and Antwerp, continuing towards Bergen op Zoom in the Netherlands. Households in Koekelberg average 0.6 cars, alongside access to public transport and shared mobility options.
Metro services in the commune are on lines 1, 2, 5 and 6: Gare de l’Ouest–Stockel, Simonis–Elisabeth, Erasme–Herrmann-Debroux and Roi Baudouin–Elisabeth. Tram lines 19 and 9 link Groot-Bijgaarden with De Wand and Simonis with Arbre Ballon. Bus options include De Lijn 214, running between Brussels, Asse and Aalst, and STIB lines 13, 49, 53 and 87. Stations close to the centre include Simonis, Thurn en Taxis / Tour et Taxis, Brussel-West / Bruxelles-Ouest, Jette and Brussel-Noord / Bruxelles-Nord. The commune has 8 nurseries, 8 nursery schools, 9 primary schools and 4 secondary schools. Examples include Comenius, Ecole Fondamentale Communale Oscar Bossaert, Gemeentelijke Basisschool - De Kadeekes and Institut Des Ursulines.
Daily shopping options include 2 Louis Delhaize stores, 1 OKay and 1 Carrefour. For shorter trips, there are 7 Villo! bike-share stations and 3 Cambio shared-car stations. No charging station is listed in Koekelberg. Brussels Airport can be reached in about 55 minutes by public transport or 16 minutes by car. With 58 flats currently for sale, prices on the market span €109,000 to €535,000, with an average of €256,207.