Province of Flemish Brabant – Flanders
Property prices in Kortenberg
In 2025, the median sale price in Kortenberg was €455,000 for a house (197 sales) and €312,500 for an apartment (50 sales), according to Statbel. The latest figures: in the first half of 2026, the median house sold for €486,250, against €450,000 in the first half of 2025.
Median house, first half of 2026
€486,250
+8.1% on Jan–Jun 2025 (€450,000), 86 sales
Median house, 2025
€455,000
Middle 50% of sales: €365,000–€580,000
Median apartment, first half of 2026
€347,000
+10.2% on Jan–Jun 2025 (€315,000), 39 sales
Median apartment, 2025
€312,500
Middle 50% of sales: €286,000–€359,000
Bought at the 2025 median of €455,000 as your only home, a house in Kortenberg costs about €469,000 all-in, with registration tax and notary fees. Borrowing 80% of the price adds about €7,300 for the mortgage deed. The true cost of buying a home in Belgium, item by item
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| Property type | Median price 2025 | Middle 50% of sales | Sales |
|---|---|---|---|
| Terraced or semi-detached house | €425,000 | €330,000–€525,000 | 101 |
| Detached house | €515,500 | €392,500–€629,500 | 96 |
| Apartment | €312,500 | €286,000–€359,000 | 50 |
First half of 2026, against the first half of 2025
| Property type | First half of 2025 | First half of 2026 | Change | Sales, Jan–Jun 2026 |
|---|---|---|---|---|
| All houses | €450,000 | €486,250 | +8.1% | 86 |
| Terraced or semi-detached house | €405,000 | €417,500 | +3.1% | 41 |
| Detached house | €497,500 | €553,500 | +11.3% | 45 |
| Apartment | €315,000 | €347,000 | +10.2% | 39 |
In 2025, 247 homes (197 houses and 50 apartments) changed hands in Kortenberg, 16.5% more than in 2024. Kortenberg is a house market first: apartments made up only 20% of 2025 sales. Detached houses sold for 21% more than terraced or semi-detached ones (median €515,500 against €425,000).
Asking price per m² in Kortenberg
| Property type | Median asking price per m² |
|---|---|
| Houses | €2,668/m² |
| Apartments | €2,769/m² |
On 26 October 2026, 82 houses and 18 apartments in Kortenberg were advertised for sale on Immoweb. Immoweb marked 14% of the houses and 28% of the apartments as under offer.
Median sale price in Kortenberg since 1980
HousesApartmentsShaded: middle 50% of sales
In 1980, the median house in Kortenberg sold for €44,745, and in 2000 for €115,270 (Belgian francs converted to euros); today it is €455,000, about 10 times as much as in 1980.
How prices are moving
In Kortenberg, the median house price rose 6.2% in 2025, 26.4% over five years and 56.9% over ten years; the median apartment price rose 2.8% in 2025, 37.4% over five years and 44% over ten years. The latest figures: in the first half of 2026, the median house sold for €486,250, against €450,000 in the first half of 2025.
| 2024–2025 | 2020–2025 | 2015–2025 | |
|---|---|---|---|
| Houses | +6.2% | +26.4% | +56.9% |
| Apartments | +2.8% | +37.4% | +44.0% |
Price history in Kortenberg, year by year
| Year | Median house | Median apartment |
|---|---|---|
| 2025 | €455,000 | €312,500 |
| 2024 | €428,500 | €304,000 |
| 2023 | €422,500 | €285,000 |
| 2022 | €403,500 | €280,000 |
| 2021 | €415,000 | €293,500 |
| 2020 | €360,000 | €227,500 |
| 2019 | €348,000 | €227,000 |
| 2018 | €331,000 | €255,250 |
| 2017 | €328,000 | €230,000 |
| 2016 | €310,000 | €230,000 |
| 2015 | €290,000 | €217,000 |
| 2014 | €300,000 | €200,000 |
| 2013 | €300,000 | €210,000 |
| 2012 | €298,000 | €225,000 |
| 2011 | €273,500 | €200,000 |
| 2010 | €275,000 | €189,500 |
Compared with the province and Belgium
| Kortenberg | Province of Flemish Brabant | Belgium | |
|---|---|---|---|
| Median house price | €455,000 | €400,000 | €315,000 |
| Median apartment price | €312,500 | €284,500 | €250,000 |
Over ten years, the median house price in Kortenberg rose 56.9%, in line with Belgium as a whole (a 57.5% rise).
Kortenberg has the 18th highest 2025 median house price in Flemish Brabant province.
Who lives in Kortenberg
Incomes run above the Belgian median: the typical tax declaration in Kortenberg showed €35,987 in 2023, 20% more than nationally. Most households here own their home: 75% did at the 2021 census, against 65% across Belgium. Kortenberg is gaining residents: the population rose 8.7% between 2016 and 2026, to 21,425.
Flood and soil in Kortenberg
Parts of Kortenberg are exposed: 8.2% of the commune’s area lies in a medium or high flood-hazard zone, plus 5.7% in the low class. 467 parcels in Kortenberg are listed in the OVAM soil register (a known or suspected contamination history). Flood and soil are two of the checks to run on one specific home before you sign; our guide to what to check before making an offer covers the rest.
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Nearby communes
On median house prices, Kortenberg lands between Herent (€439,000) and Zaventem (€460,000).
| Commune | House median | Apartment median |
|---|---|---|
| Steenokkerzeel | €435,000 | – |
| Kampenhout | €436,250 | €332,500 |
| Herent | €439,000 | €350,000 |
| Zaventem | €460,000 | €285,000 |
| Bertem | €483,500 | – |
| Tervuren | €597,500 | €335,000 |