Province of Walloon Brabant – Wallonia
Property prices in Mont-Saint-Guibert
In 2025, the median sale price in Mont-Saint-Guibert was €395,000 for a house (61 sales) and €279,000 for an apartment (34 sales), according to Statbel. The latest figures: in the first half of 2026, the median house sold for €400,000, against €395,000 in the first half of 2025.
Median house, first half of 2026
€400,000
+1.3% on Jan–Jun 2025 (€395,000), 35 sales
Median house, 2025
€395,000
Middle 50% of sales: €285,000–€495,000
Median apartment, 2025
€279,000
Middle 50% of sales: €260,000–€315,000
Bought at the 2025 median of €395,000 as your only home, a house in Mont-Saint-Guibert costs about €411,000 all-in, with registration tax and notary fees. Borrowing 80% of the price adds about €6,300 for the mortgage deed. Since 2025 an only home in Wallonia pays 3%, a rate that replaced the old allowance (the abattement). 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 | €343,000 | €244,500–€410,444 | 26 |
| Detached house | €400,000 | €355,000–€535,000 | 35 |
| Apartment | €279,000 | €260,000–€315,000 | 34 |
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 | €395,000 | €400,000 | +1.3% | 35 |
| Terraced or semi-detached house | – | €387,500 | – | 22 |
In 2025, 95 homes (61 houses and 34 apartments) changed hands in Mont-Saint-Guibert, 69.6% more than in 2024. Houses and apartments share the market in Mont-Saint-Guibert: 36% of 2025 sales were apartments. Detached houses sold for 17% more than terraced or semi-detached ones (median €400,000 against €343,000).
Asking price per m² in Mont-Saint-Guibert
| Property type | Median asking price per m² |
|---|---|
| Houses | €2,586/m² |
| Apartments | €3,742/m² |
On 26 October 2026, 28 houses and 16 apartments in Mont-Saint-Guibert were advertised for sale on Immoweb. Immoweb marked 50% of the houses and 56% of the apartments as under offer.
Median sale price in Mont-Saint-Guibert since 1980
HousesApartmentsShaded: middle 50% of sales
In 1980, the median house in Mont-Saint-Guibert sold for €43,381, and in 2000 for €99,157 (Belgian francs converted to euros); today it is €395,000, about 9 times as much as in 1980.
How prices are moving
In Mont-Saint-Guibert, the median house price fell 0.8% in 2025, but rose 14.2% over five years and 48.2% over ten years; the median apartment price rose 11.6% in 2025, 11.6% over five years and 52.5% over ten years. The latest figures: in the first half of 2026, the median house sold for €400,000, against €395,000 in the first half of 2025.
| 2024–2025 | 2020–2025 | 2015–2025 | |
|---|---|---|---|
| Houses | −0.8% | +14.2% | +48.2% |
| Apartments | +11.6% | +11.6% | +52.5% |
Price history in Mont-Saint-Guibert, year by year
| Year | Median house | Median apartment |
|---|---|---|
| 2025 | €395,000 | €279,000 |
| 2024 | €398,000 | €250,000 |
| 2023 | €395,000 | €285,000 |
| 2022 | €336,250 | – |
| 2021 | €395,000 | €247,000 |
| 2020 | €346,000 | €250,000 |
| 2019 | €322,500 | €249,000 |
| 2018 | €292,500 | – |
| 2017 | €259,750 | €200,000 |
| 2016 | €300,000 | €202,500 |
| 2015 | €266,500 | €183,000 |
| 2014 | €292,500 | €180,000 |
| 2013 | €257,500 | €177,500 |
| 2012 | €265,000 | €174,250 |
| 2011 | €270,000 | – |
| 2010 | €237,500 | – |
Compared with the province and Belgium
| Mont-Saint-Guibert | Province of Walloon Brabant | Belgium | |
|---|---|---|---|
| Median house price | €395,000 | €405,000 | €315,000 |
| Median apartment price | €279,000 | €260,000 | €250,000 |
Over ten years, the median house price in Mont-Saint-Guibert rose 48.2%, against a 57.5% rise across Belgium.
Mont-Saint-Guibert has the 13th lowest 2025 median house price in Walloon Brabant province.
Who lives in Mont-Saint-Guibert
Incomes run above the Belgian median: the typical tax declaration in Mont-Saint-Guibert showed €32,884 in 2023, 9% more than nationally. At the 2021 census, 62% of households owned their home, against 65% across Belgium. Mont-Saint-Guibert is gaining residents: the population rose 15.5% between 2016 and 2026, to 8,503.
Flood risk in Mont-Saint-Guibert
Flood exposure is marginal: 1.1% of the commune’s area lies in a medium or high flood-hazard zone (0.3% in the high class), with another 4.4% in the low class. 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, Mont-Saint-Guibert is the most affordable of this list; Ottignies-Louvain-la-Neuve is the nearest step up, at €410,000.
| Commune | House median | Apartment median |
|---|---|---|
| Court-Saint-Etienne | €395,000 | €269,000 |
| Ottignies-Louvain-la-Neuve | €410,000 | €236,000 |
| Walhain | €410,000 | – |
| Chastre | €410,000 | – |
| Chaumont-Gistoux | €536,500 | – |