Across 33.4 km², Ottignies-Louvain-La-Neuve has 31,443 inhabitants, with an average age of 40. Women represent 51.4% of the population. The nationality breakdown is 86.7% Belgian, 3.2% French, 1% Italian, 0.9% Moroccan, 0.7% Chinese, 0.7% Spanish, 0.6% Congolese and 6.1% other. Tenants make up 51% of residents, average annual net income per person is €19,651, and there is an average of 1 car per household.
There are 3 flats for rent. Monthly rents range from €410 to €1,400, with a stated average of €1,003. Across the commune, the average home has about 5.1 rooms. Buildings date on average from around 1975, and the housing stock is 61.4% apartment buildings and 38.6% houses. Buildings and flat blocks represent 60.9% of building types; 15.4% are open-type houses, farms and castles, 12.6% semi-closed houses, 10.2% closed-type houses, 0.5% other types and 0.4% commercial houses.
The main roads listed are the N4, N232, N233, N237 and N238a. The A4 / E411 - E25 entrance is 5 minutes by car from the town centre, serving the Brussels–Namur–Arlon route towards Luxembourg City. The R0 Brussels ring is 16 minutes away by car. TEC provides 24 bus lines, including line 11 between Ottignies and Axis Parc, Einstein and Fleming, line 17 between Ottignies, Clinique and Petit-Ry, line 19 to Nivelles, line 20 to Wavre and line 31 to Bruyères. Rail stations include Ottignies, Ceroux-Mousty, Limal, Louvain-La-Neuve and Court-Saint-Étienne.
There are 36 nurseries, 15 nursery schools, 15 primary schools and 5 secondary schools in the commune. Examples include L'Ecole Des Minipouss, La Pyramide, Ecole Communale Fondamentale De Mousty, Ecole Fondamentale Libre Saint-Pie X and Lycee Martin V. For food shopping, the listed options are 4 Delhaize, 2 Carrefour, 1 Trafic, 1 SPAR, 1 Delitraiteur, 1 Intermarché and 1 Colruyt. Mobility facilities include 2 EV charging stations and 9 Cambio shared-car stations; no shared bicycles are listed. Brussels South Charleroi Airport is 29 minutes by car or 66 minutes by public transport.
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