🏙 Property in Saint-Germain-en-Laye: prices, rents, property tax and trends
🏘 Rue Leon Desoyer — Saint-Germain-en-Laye (78100)
12 registered co-ownerships in the national register (RNIC) are attached to Rue Leon Desoyer in Saint-Germain-en-Laye, for a total of 362 units. The 6 sales of flats recorded between 2024 and 2025 work out at a median price of €7,240/m² (+11% compared with the median for Saint-Germain-en-Laye, €6,544/m²).
Change in the median price per m² (flats)
| Year | Sales | Median price |
|---|---|---|
| 2024 | 1 | €7,031/m² |
| 2025 | 5 | €7,449/m² |
📋 Profile of Rue Leon Desoyer
The buildings on Rue Leon Desoyer in Saint-Germain-en-Laye: 56% of the co-ownerships whose construction period is known date from before 1949; individual heating dominates (10% collective heating); only 10% have a lift. The median co-ownership has 16 units (up to 103).
On the management side, 86% of the co-ownerships whose type of managing agent is known (7) are run by a professional managing agent, the rest being run by 1 volunteer managing agent. The most present firm, CABINET SENNES, runs 3 of these co-ownerships out of the 6 run by a professional managing agent.
On the market, 6 sales were recorded in the street over the period covered, with a median price of €7,240/m² for flats, i.e. 11% above the median for Saint-Germain-en-Laye.
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 Leon Desoyer
| Firm | Co-ownerships in the street | Units |
|---|---|---|
| CABINET SENNES | 3 | 96 |
| FONCIA MANSART | 2 | 84 |
| LAMY | 1 | 103 |
Legal entities declared in the national co-ownership register. Volunteer managing agents (individuals) are never named.
🏢 The co-ownerships on Rue Leon Desoyer
🏷 Latest sales in the street
| Date | Property | Area | Price | €/m² |
|---|---|---|---|---|
| 09/2025 | Flat 1-room | 10 m² | €79,000 | 7,900 |
| 09/2025 | Flat 3-room | 76 m² | €654,450 | 8,611 |
| 06/2025 | Flat 3-room | 59 m² | €439,500 | 7,449 |
| 06/2025 | Flat 3-room | 77 m² | €330,000 | 4,286 |
| 05/2025 | Flat 1-room | 17 m² | €70,000 | 4,118 |
| 03/2024 | Flat 2-room | 32 m² | €225,000 | 7,031 |
Listings in Saint-Germain-en-Laye 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 Saint-Germain-en-Laye
❓ Frequently asked questions
How many co-ownerships are there on Rue Leon Desoyer in Saint-Germain-en-Laye?
The national co-ownership register (RNIC) lists 12 co-ownerships attached to Rue Leon Desoyer in Saint-Germain-en-Laye, for a total of 362 units.
What is the price per m² on Rue Leon Desoyer in Saint-Germain-en-Laye?
According to the sales recorded between 2024 and 2025 (6 flats, DVF source), the median price is €7,240/m². Across the municipality, the median is €6,544/m².
Which managing agents run the co-ownerships on Rue Leon Desoyer in Saint-Germain-en-Laye?
Among the co-ownerships run by a professional managing agent, the most present firms are: CABINET SENNES (3), FONCIA MANSART (2), LAMY (1). The full list is on this page.
How can I contact the managing agent of a co-ownership on Rue Leon Desoyer?
Each listing shows the type of managing agent (professional or volunteer) and lets you contact Syndic Digital, which relays your request.