🏙 Property in Osny: prices, rents, property tax and trends
🏘 Rue William Thornley — Osny (95520)
3 registered co-ownerships in the national register (RNIC) are attached to Rue William Thornley in Osny, for a total of 453 units. The 4 sales of flats recorded between 2024 and 2025 work out at a median price of €3,389/m² (−6% compared with the median for Osny, €3,621/m²).
Change in the median price per m² (flats)
| Year | Sales | Median price |
|---|---|---|
| 2024 | 1 | €3,318/m² |
| 2025 | 3 | €3,460/m² |
📋 Profile of Rue William Thornley
The buildings on Rue William Thornley in Osny: individual heating dominates (0% collective heating); 67% have at least one lift. The co-ownerships there are large (median of 186 units, up to 242).
On the market, 4 sales were recorded in the street over the period covered, with a median price of €3,389/m² for flats, i.e. 6% below the median for Osny.
Statistics calculated on the co-ownerships of the street for which the information is recorded in the national register (RNIC).
🏛 Professional managing agents on Rue William Thornley
| Firm | Co-ownerships in the street | Units |
|---|---|---|
| GESTION IMMOBILIERE MODERNE | 1 | 186 |
Legal entities declared in the national co-ownership register. Volunteer managing agents (individuals) are never named.
🏢 The co-ownerships on Rue William Thornley
🏷 Latest sales in the street
| Date | Property | Area | Price | €/m² |
|---|---|---|---|---|
| 12/2025 | Flat 3-room | 74 m² | €224,600 | 3,035 |
| 09/2025 | Flat 4-room | 80 m² | €325,500 | 4,069 |
| 07/2025 | Flat 2-room | 49 m² | €169,550 | 3,460 |
| 10/2024 | Flat 5-room | 106 m² | €351,750 | 3,318 |
Listings in Osny on Leboncoin
Single-property sales (excluding grouped sales), without street numbers. Source: “Demandes de valeurs foncières” © DGFiP / Etalab, Open Licence 2.0. Co-ownerships: national co-ownership register; addresses: Base Adresse Nationale. Syndic Digital is not affiliated with Leboncoin.
📍 Other streets in Osny
❓ Frequently asked questions
How many co-ownerships are there on Rue William Thornley in Osny?
The national co-ownership register (RNIC) lists 3 co-ownerships attached to Rue William Thornley in Osny, for a total of 453 units.
What is the price per m² on Rue William Thornley in Osny?
According to the sales recorded between 2024 and 2025 (4 flats, DVF source), the median price is €3,389/m². Across the municipality, the median is €3,621/m².
Which managing agents run the co-ownerships on Rue William Thornley in Osny?
Among the co-ownerships run by a professional managing agent, the most present firms are: GESTION IMMOBILIERE MODERNE (1). The full list is on this page.
How can I contact the managing agent of a co-ownership on Rue William Thornley?
Each listing shows the type of managing agent (professional or volunteer) and lets you contact Syndic Digital, which relays your request.