What is a square metre worth in Saint-Illiers-le-Bois?

Over the 12 published sales of houses above, the median is €2,435 per square metre. The municipality counts fewer than 25 housing sales over twelve months, so Briveo does not turn it into a market index and shows the sales themselves, with the nearby towns above the threshold.

How do I value a property in Saint-Illiers-le-Bois?

By reading the published sales of the municipality and of the nearby towns, at comparable surface and type, then asking Briveo for a valuation, which reads the sales of the area and visits the property.

How much is a house worth in Saint-Illiers-le-Bois?

Over the 12 published sales of houses above, the median is €2,435 per square metre, half of them between €1,915 and €3,089. A given property sits above or below, by its surface, its condition and its plot, and that is what the valuation settles.

How do I sell a property in Saint-Illiers-le-Bois with Briveo?

Briveo values the property on the sales of the area, publishes the listing and shows the property, under an electronic mandate signed online. The fees are due at the deed.

Where do these sales come from?

From the Demandes de valeurs foncières file of the French tax administration, published as open data, one line per sale, covering 1 January 2023 to 31 December 2025. Sales without a known built surface have no price per square metre.

Property in Saint-Illiers-le-Bois, the published sales

Saint-Illiers-le-Bois is a municipality of the Yvelines département (78), in the Île-de-France region.

The sales published by the French tax administration (DVF) record 16 housing sales there between 1 January 2023 and 31 December 2025. Enough to read each sale and to observe a median over the sales shown, not enough for the twelve-month index of the full pages, which needs 25 sales over twelve months.

The table lists the 13 most recent sales, newest first, with the dwelling's surface and the price per square metre when the surface is known. The street is given without the number.

The published sales in Saint-Illiers-le-Bois

Housing sales published in Saint-Illiers-le-Bois
Date	Type	Surface	Rooms	Price	Price per sq m	Street
31 October 2025	House	83 sq m	4	€288,500	€3,476 per sq m	RUE DU VIEUX PUITS
23 August 2025	House	122 sq m	7	€240,000	€1,967 per sq m	RUE DU VIEUX PUITS
1 August 2025	House	67 sq m	3	€250,000	€3,731 per sq m	RUE DU PEUPLIER
4 June 2025	House	120 sq m	6	€324,250	€2,702 per sq m	RTE DE ROSNY
28 April 2025	House	85 sq m	4	€304,700	€3,585 per sq m	RUE D EN BAS
29 May 2024	Flat	60 sq m	3	€108,108	€1,802 per sq m	RUE DE LA HOUSSIERE
22 December 2023	House	99 sq m	4	€135,000	€1,364 per sq m	RTE DE ROSNY
20 September 2023	House	115 sq m	4	€247,000	€2,148 per sq m	RUE DE LA HOUSSIERE
16 September 2023	House	100 sq m	5	€255,700	€2,557 per sq m	RTE DE ROSNY
20 July 2023	House	150 sq m	5	€347,000	€2,313 per sq m	RUE DE LA MARE RICHARD
26 May 2023	House	74 sq m	2	€219,000	€2,959 per sq m	RUE DU PEUPLIER
26 January 2023	House	108 sq m	5	€190,000	€1,759 per sq m	RUE DU VIEUX PUITS
13 January 2023	House	112 sq m	4	€110,000	€982 per sq m	RUE GAILLARD

What these sales show

Over the 12 published sales of houses above, the median price is €2,435 per square metre, half of the sales falling between €1,915 and €3,089.

The 12 published sales of houses range from €982 to €3,731 per square metre, for surfaces of 67 to 150 sq m.

Property prices in the nearby towns tracked by Briveo

Selling in Saint-Illiers-le-Bois?

Briveo values your property on the sales of the area, publishes the listing and shows it, with an electronic mandate and fees due at the deed.

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Are you an estate agent in Saint-Illiers-le-Bois?

Briveo recruits independent sales agents in every municipality, in transactions only, under the principal's professional licence, with the pay and the monthly cost stated before signing. The sales published above are the market you know.

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Frequently asked questions

What is a square metre worth in Saint-Illiers-le-Bois?: Over the 12 published sales of houses above, the median is €2,435 per square metre. The municipality counts fewer than 25 housing sales over twelve months, so Briveo does not turn it into a market index and shows the sales themselves, with the nearby towns above the threshold.
How do I value a property in Saint-Illiers-le-Bois?: By reading the published sales of the municipality and of the nearby towns, at comparable surface and type, then asking Briveo for a valuation, which reads the sales of the area and visits the property.
How much is a house worth in Saint-Illiers-le-Bois?: Over the 12 published sales of houses above, the median is €2,435 per square metre, half of them between €1,915 and €3,089. A given property sits above or below, by its surface, its condition and its plot, and that is what the valuation settles.
How do I sell a property in Saint-Illiers-le-Bois with Briveo?: Briveo values the property on the sales of the area, publishes the listing and shows the property, under an electronic mandate signed online. The fees are due at the deed.
Where do these sales come from?: From the Demandes de valeurs foncières file of the French tax administration, published as open data, one line per sale, covering 1 January 2023 to 31 December 2025. Sales without a known built surface have no price per square metre.

Source and method

Sales published by the French tax administration (DVF), one line per transaction, dwellings only, one dwelling per sale, block sales set aside, price per square metre computed on the built surface of the transaction. Coverage from 1 January 2023 to 31 December 2025.

Property prices in Yvelines