Province of Hainaut – Wallonia
Property prices in Silly
In 2025, the median sale price in Silly was €347,500 for a house (83 sales), according to Statbel. The latest figures: in the first half of 2026, the median house sold for €360,000, against €325,000 in the first half of 2025.
Median house, first half of 2026
€360,000
+10.8% on Jan–Jun 2025 (€325,000), 29 sales
Median house, 2025
€347,500
Middle 50% of sales: €255,000–€425,000
Bought at the 2025 median of €347,500 as your only home, a house in Silly costs about €362,000 all-in, with registration tax and notary fees. Borrowing 80% of the price adds about €5,600 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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Eyeing a home in Silly?
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| Property type | Median price 2025 | Middle 50% of sales | Sales |
|---|---|---|---|
| Terraced or semi-detached house | €252,500 | €200,500–€314,000 | 21 |
| Detached house | €370,000 | €275,000–€444,000 | 62 |
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 | €325,000 | €360,000 | +10.8% | 29 |
| Detached house | €353,500 | €380,000 | +7.5% | 24 |
In 2025, 83 houses changed hands in Silly, 88.6% more than in 2024. Detached houses sold for 47% more than terraced or semi-detached ones (median €370,000 against €252,500).
Asking price per m² in Silly
| Property type | Median asking price per m² |
|---|---|
| Houses | €2,188/m² |
On 26 October 2026, 40 houses and 1 apartment in Silly were advertised for sale on Immoweb. Immoweb marked 20% of the houses as under offer.
Median sale price in Silly since 1980
HousesShaded: middle 50% of sales
In 1980, the median house in Silly sold for €44,926, and in 2000 for €99,157 (Belgian francs converted to euros); today it is €347,500, about 8 times as much as in 1980.
How prices are moving
In Silly, the median house price rose 33.7% in 2025, 37.6% over five years and 54.4% over ten years. The latest figures: in the first half of 2026, the median house sold for €360,000, against €325,000 in the first half of 2025.
| 2024–2025 | 2020–2025 | 2015–2025 | |
|---|---|---|---|
| Houses | +33.7% | +37.6% | +54.4% |
Price history in Silly, year by year
| Year | Median house | Median apartment |
|---|---|---|
| 2025 | €347,500 | – |
| 2024 | €260,000 | – |
| 2023 | €290,000 | – |
| 2022 | €302,500 | – |
| 2021 | €275,000 | – |
| 2020 | €252,500 | – |
| 2019 | €260,000 | – |
| 2018 | €255,000 | – |
| 2017 | €227,500 | – |
| 2016 | €232,500 | – |
| 2015 | €225,000 | – |
| 2014 | €215,000 | – |
| 2013 | €220,000 | – |
| 2012 | €242,500 | – |
| 2011 | €222,500 | – |
| 2010 | €206,000 | – |
Compared with the province and Belgium
| Silly | Province of Hainaut | Belgium | |
|---|---|---|---|
| Median house price | €347,500 | €190,000 | €315,000 |
| Median apartment price | – | €160,000 | €250,000 |
Over ten years, the median house price in Silly rose 54.4%, against a 57.5% rise across Belgium.
Silly has the highest 2025 median house price in Hainaut province.
Who lives in Silly
Incomes run above the Belgian median: the typical tax declaration in Silly showed €33,248 in 2023, 10% more than nationally. Most households here own their home: 82% did at the 2021 census, against 65% across Belgium. The population is stable at 8,431 residents (2026), +1.3% since 2019.
Flood risk in Silly
Flood exposure is marginal: 1.8% of the commune’s area lies in a medium or high flood-hazard zone (0.1% in the high class), with another 7.5% 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, Silly lands between Enghien (€297,500) and Pajottegem (€350,000).
| Commune | House median | Apartment median |
|---|---|---|
| Lessines | €200,000 | €175,000 |
| Soignies | €250,000 | €188,500 |
| Brugelette | €250,000 | – |
| Lens | €255,000 | – |
| Ath | €260,000 | €199,000 |
| Bever | €262,500 | – |
| Braine-le-Comte | €275,000 | €189,000 |
| Enghien | €297,500 | €230,000 |
| Pajottegem | €350,000 | €275,000 |