Province of Antwerp – Flanders
Property prices in Olen
In 2025, the median sale price in Olen was €347,500 for a house (112 sales), according to Statbel. The latest figures: in the first half of 2026, the median house sold for €341,000, against €321,000 in the first half of 2025.
Median house, first half of 2026
€341,000
+6.2% on Jan–Jun 2025 (€321,000), 41 sales
Median house, 2025
€347,500
Middle 50% of sales: €289,500–€427,500
Bought at the 2025 median of €347,500 as your only home, a house in Olen costs about €359,000 all-in, with registration tax and notary fees. Borrowing 80% of the price adds about €5,600 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 | €366,000 | €287,000–€437,000 | 40 |
| Detached house | €337,500 | €291,000–€424,500 | 72 |
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 | €321,000 | €341,000 | +6.2% | 41 |
| Terraced or semi-detached house | – | €320,000 | – | 20 |
| Detached house | €320,000 | €379,000 | +18.4% | 21 |
In 2025, 112 houses changed hands in Olen. Unusually, the median detached house (€337,500) sold for less than the median terraced or semi-detached one (€366,000).
Asking price per m² in Olen
| Property type | Median asking price per m² |
|---|---|
| Houses | €2,157/m² |
| Apartments | €3,087/m² |
On 26 October 2026, 36 houses and 12 apartments in Olen were advertised for sale on Immoweb. Immoweb marked 14% of the houses and 0% of the apartments as under offer.
Median sale price in Olen since 1980
HousesApartmentsShaded: middle 50% of sales
In 1980, the median house in Olen sold for €35,945, and in 2000 for €99,157 (Belgian francs converted to euros); today it is €347,500, about 10 times as much as in 1980.
How prices are moving
In Olen, the median house price fell 5.4% in 2025, but rose 21.9% over five years and 45.4% over ten years. The latest figures: in the first half of 2026, the median house sold for €341,000, against €321,000 in the first half of 2025.
| 2024–2025 | 2020–2025 | 2015–2025 | |
|---|---|---|---|
| Houses | −5.4% | +21.9% | +45.4% |
Price history in Olen, year by year
| Year | Median house | Median apartment |
|---|---|---|
| 2025 | €347,500 | – |
| 2024 | €367,500 | €295,000 |
| 2023 | €325,000 | €264,500 |
| 2022 | €301,000 | €239,500 |
| 2021 | €312,000 | €260,625 |
| 2020 | €285,000 | €218,000 |
| 2019 | €270,000 | €188,000 |
| 2018 | €250,000 | €205,000 |
| 2017 | €262,500 | €169,923 |
| 2015 | €239,000 | – |
| 2014 | €230,000 | – |
| 2013 | €230,000 | – |
| 2012 | €244,500 | – |
| 2011 | €210,000 | – |
| 2010 | €205,000 | €180,000 |
Compared with the province and Belgium
| Olen | Province of Antwerp | Belgium | |
|---|---|---|---|
| Median house price | €347,500 | €380,000 | €315,000 |
| Median apartment price | – | €259,000 | €250,000 |
Over ten years, the median house price in Olen rose 45.4%, against a 57.5% rise across Belgium.
Olen has the 23rd lowest 2025 median house price in Antwerp province.
Who lives in Olen
Incomes run above the Belgian median: the typical tax declaration in Olen showed €34,501 in 2023, 15% more than nationally. Most households here own their home: 75% did at the 2021 census, against 65% across Belgium. Olen is gaining residents: the population rose 5.7% between 2016 and 2026, to 12,945.
Flood and soil in Olen
Parts of Olen are exposed: 8.8% of the commune’s area lies in a medium or high flood-hazard zone, plus 8% in the low class. 1,234 parcels in Olen 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, Olen tops this list; Kasterlee comes nearest below, at €345,000.