Province of Flemish Brabant – Flanders
Property prices in Zemst
In 2025, the median sale price in Zemst was €429,250 for a house (251 sales), according to Statbel. The latest figures: in the first half of 2026, the median house sold for €459,000, against €425,000 in the first half of 2025.
Median house, first half of 2026
€459,000
+8.0% on Jan–Jun 2025 (€425,000), 116 sales
Median house, 2025
€429,250
Middle 50% of sales: €345,000–€563,500
Bought at the 2025 median of €429,250 as your only home, a house in Zemst costs about €442,000 all-in, with registration tax and notary fees. Borrowing 80% of the price adds about €6,900 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 | €390,000 | €315,500–€485,000 | 131 |
| Detached house | €500,000 | €380,000–€650,000 | 120 |
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 | €425,000 | €459,000 | +8.0% | 116 |
| Terraced or semi-detached house | €400,500 | €436,500 | +9.0% | 64 |
| Detached house | €498,750 | €535,000 | +7.3% | 52 |
In 2025, 251 houses changed hands in Zemst, 39.4% more than in 2024. Detached houses sold for 28% more than terraced or semi-detached ones (median €500,000 against €390,000).
Asking price per m² in Zemst
| Property type | Median asking price per m² |
|---|---|
| Houses | €2,566/m² |
On 26 October 2026, 74 houses and 10 apartments in Zemst were advertised for sale on Immoweb. Immoweb marked 18% of the houses and 30% of the apartments as under offer.
Median sale price in Zemst since 1980
HousesApartmentsShaded: middle 50% of sales
In 1980, the median house in Zemst sold for €37,529, and in 2000 for €96,678 (Belgian francs converted to euros); today it is €429,250, about 11 times as much as in 1980.
How prices are moving
In Zemst, the median house price rose 9.8% in 2025, 26.3% over five years and 53.3% over ten years. The latest figures: in the first half of 2026, the median house sold for €459,000, against €425,000 in the first half of 2025.
| 2024–2025 | 2020–2025 | 2015–2025 | |
|---|---|---|---|
| Houses | +9.8% | +26.3% | +53.3% |
Price history in Zemst, year by year
| Year | Median house | Median apartment |
|---|---|---|
| 2025 | €429,250 | – |
| 2024 | €391,050 | – |
| 2023 | €399,500 | – |
| 2022 | €392,750 | €299,000 |
| 2021 | €369,000 | €290,000 |
| 2020 | €340,000 | – |
| 2019 | €310,000 | – |
| 2018 | €300,000 | – |
| 2017 | €284,500 | – |
| 2016 | €280,500 | – |
| 2015 | €280,000 | – |
| 2014 | €265,000 | – |
| 2013 | €295,000 | – |
| 2012 | €270,000 | – |
| 2011 | €260,000 | – |
| 2010 | €250,000 | – |
Compared with the province and Belgium
| Zemst | Province of Flemish Brabant | Belgium | |
|---|---|---|---|
| Median house price | €429,250 | €400,000 | €315,000 |
| Median apartment price | – | €284,500 | €250,000 |
Over ten years, the median house price in Zemst rose 53.3%, against a 57.5% rise across Belgium.
Zemst has the 26th highest 2025 median house price in Flemish Brabant province.
Who lives in Zemst
Incomes run above the Belgian median: the typical tax declaration in Zemst showed €39,577 in 2023, 31% more than nationally. Most households here own their home: 84% did at the 2021 census, against 65% across Belgium. The population is stable at 23,367 residents (2026), +1.3% since 2016.
Flood and soil in Zemst
Flooding is a real risk in Zemst: 12.4% of the commune’s area lies in a medium or high flood-hazard zone, plus 11.4% in the low class. 628 parcels in Zemst 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, Zemst lands between Kapelle-op-den-Bos (€375,500) and Steenokkerzeel (€435,000).
| Commune | House median | Apartment median |
|---|---|---|
| Vilvoorde | €354,000 | €264,500 |
| Mechelen | €364,000 | €275,000 |
| Kapelle-op-den-Bos | €375,500 | – |
| Steenokkerzeel | €435,000 | – |
| Kampenhout | €436,250 | €332,500 |
| Grimbergen | €445,000 | €270,000 |
| Boortmeerbeek | €460,000 | – |