Price of a house in Osny
In Osny, the median price of a house is €3,336/sq.m, i.e. about €340,272 for an average area of 102 sq.m. Data from actual DVF transactions by the DGFiP (95 sales over the 12 months ending 31 December 2025).
Price range (house)
What DVF sales say about the price of a house in Osny
Among the neighbouring towns tracked by Briveo that measure the same property type, Bezons comes out at €4,559/sq.m, about 37% above, and Cergy at €2,985/sq.m, about 11% below. Osny measures 5 property types, and the house comes 3rd on price per sq.m, 1st on sales volume over 12 months. The 95 house sales recorded over 12 months weigh about 65% of the 147 apartment and house sales in the town.
Observed sale prices of a house in Osny
Of the sales of a house à Osny, half closed between 270,000 € and 408,000 €, for a median price of 333,000 €.
Half of the house sold measure between 79 and 120 sq.m. The median plot of a house sold is 600 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 107 | €3,580/sq.m |
| 2024 | 91 | €3,211/sq.m |
| 2025 | 95 | €3,194/sq.m |
Between 2023 and 2025, the median price per sq.m of a house went from 3,580 € to 3,194 €, −10.8 %.
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 95 sales
- Figures computed on 18 October 2026
The town
Osny covers 12.5 km², lies between 27 and 102 m above sea level and had 17,954 inhabitants in the 2023 census.
Osny [oni] is a commune in Val-d'Oise, in the Île-de-France region, through which the Viosne and another branch of it called « la Couleuvre » flow. Its inhabitants are known as the Osnyssois and Osnyssoises. A village in the Vexin français, the commune experienced significant demographic growth from the 1970s onwards, following its incorporation into the new town of Cergy-Pontoise, as well as rapid urbanisation.
The full property page of the town
From Wikidata and the Wikipedia article « Osny », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Osny
Price of a house in nearby cities
Cities tracked by BRIVEO in the same department, median for the same property type when available.
Frequently asked questions, House in Osny
Q1What is the price of a house in Osny in 2026?
In Osny, the median price of a house is €3,336/sq.m, with a range of €2,792 to €3,924/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a house of 102 sq.m in Osny?
For the average observed area (102 sq.m), the indicative budget goes from about €284,784 (1st quartile) to €400,248 (3rd quartile), around €340,272 at the median price. Indicative calculation, DVF price per sq.m multiplied by the area, excluding notary fees.
Q3How does the price of a house compare with apartments in Osny?
The median price of a house in Osny is about 4% below the city's apartment median (€3,477/sq.m), based on DVF sales published by the DGFiP.
Q4How many house sales in Osny?
The DGFiP DVF database records 95 sales of this type in Osny over the last 12 months.