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Jouy-en-Josas, 78350

Price of a 4-room apartment (T4) in Jouy-en-Josas

In Jouy-en-Josas, the median price of a T4 is €3,758/sq.m, i.e. about €326,946 for an average area of 87 sq.m. Data from actual DVF transactions by the DGFiP (13 sales over the 12 months ending 31 December 2025).

Price range (T4)

Entry (1st quartile)
€3,316/sq.m
Median
€3,758/sq.m
High (3rd quartile)
€3,905/sq.m

What DVF sales say about the price of a T4 in Jouy-en-Josas

At €3,758/sq.m, the median price lands in the lower third of the town's apartment range, 1st to 3rd quartile. Apartments sold in the town average 66 sq.m, against 87 sq.m for the T4, about 33% more. Jouy-en-Josas measures 6 property types, and the T4 comes 6th on price per sq.m, 3rd on sales volume over 12 months. Out of 73 apartment and house sales in the town over 12 months, 13 concern this property type, about 18%. Among the neighbouring towns tracked by Briveo that measure the same property type, Versailles comes out at €6,429/sq.m, about 71% above, and Rambouillet at €3,217/sq.m, about 14% below. For all of the town's apartments, whatever their number of rooms, DVF sales published by the DGFiP show the median price per sq.m moving +1.5% over one year.

Observed sale prices of a T4 in Jouy-en-Josas

Of the sales of a T4 à Jouy-en-Josas, half closed between 288,500 € and 370,500 €, for a median price of 342,500 €.

Entry (1st quartile)
€288,500
Median
€342,500
High (3rd quartile)
€370,500

Half of the T4 sold measure between 72 and 95 sq.m.

Three years of sales

YearSalesMedian per sq.m
20238€3,521/sq.m
20248€3,642/sq.m
202513€3,853/sq.m

Source and method

  • Property transfer records (DVF), published by the French tax authority (DGFiP)
  • Sales recorded from 1 January 2023 to 31 December 2025
  • Based on 13 sales
  • Figures computed on 30 October 2026

The town

Jouy-en-Josas covers 10.1 km², lies between 77 and 179 m above sea level and had 7,981 inhabitants in the 2023 census.

Jouy-en-Josas [ʒwi ɑ̃ ʒozas] is a French commune situated in the département of Yvelines in the Île-de-France region, along the valley of the Bièvre, to the north of the plateau de Saclay and the vallée de Chevreuse, and to the south of Versailles. Jouy-en-Josas is distinguished by its exceptional natural surroundings, with notably the forêt de Versailles which borders the commune to the north and the vallée de la Bièvre which runs through Jouy from one end to the other.

The full property page of the town

From Wikidata and the Wikipedia article « Jouy-en-Josas », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article

Other property types in Jouy-en-Josas

Property typeMedian price / sq.mCentral range, middle half of salesAverage surfaceSales, 12 months ending 31 December 2025
Studio€4,444€4,122 – €5,11030 m²7
T2€3,959€3,743 – €4,71143 m²13
T3€3,872€3,383 – €4,47466 m²9
T5+€4,035€3,151 – €4,288107 m²4
House€5,569€4,258 – €6,158121 m²27

Price of a T4 in nearby cities

Cities tracked by BRIVEO in the same department, median for the same property type when available.

Frequently asked questions, T4 in Jouy-en-Josas

Q1What is the price of a T4 in Jouy-en-Josas in 2026?

In Jouy-en-Josas, the median price of a T4 is €3,758/sq.m, with a range of €3,316 to €3,905/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.

Q2What budget for a T4 of 87 sq.m in Jouy-en-Josas?

For the average observed area (87 sq.m), the indicative budget goes from about €288,492 (1st quartile) to €339,735 (3rd quartile), around €326,946 at the median price. Indicative calculation, DVF price per sq.m multiplied by the area, excluding notary fees.

Q3How does the price of a T4 compare with apartments in Jouy-en-Josas?

The median price of a T4 in Jouy-en-Josas is about 5% below the city's apartment median (€3,942/sq.m), based on DVF sales published by the DGFiP.

Q4How many T4 sales in Jouy-en-Josas?

The DGFiP DVF database records 13 sales of this type in Jouy-en-Josas over the last 12 months.