🏙 Property in Saint-Germain-en-Laye: prices, rents, property tax and trends
🏘 Rue de la Grande Fontaine — Saint-Germain-en-Laye (78100)
18 registered co-ownerships in the national register (RNIC) are attached to Rue de la Grande Fontaine in Saint-Germain-en-Laye, for a total of 701 units. The 10 sales of flats recorded between 2024 and 2025 work out at a median price of €7,321/m² (+12% 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 | 4 | €6,665/m² |
| 2025 | 6 | €7,368/m² |
📋 Profile of Rue de la Grande Fontaine
The buildings on Rue de la Grande Fontaine in Saint-Germain-en-Laye: 29% of the buildings date from before 1949, among those whose age is recorded; individual heating dominates (17% collective heating, mostly with natural gas); only 11% have a lift. These are mostly small co-ownerships (median of 18 units, 61% with 20 units or fewer).
On the management side, 100% of the co-ownerships whose type of managing agent is known (13) are run by a professional managing agent. The most present firm, SOGESYM, runs 5 of these co-ownerships out of the 13 run by a professional managing agent.
On the market, 11 sales were recorded in the street over the period covered, with a median price of €7,321/m² for flats, i.e. 12% 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 de la Grande Fontaine
| Firm | Co-ownerships in the street | Units |
|---|---|---|
| SOGESYM | 5 | 354 |
| SARL FB & MB | 3 | 102 |
| FONCIA MANSART | 2 | 42 |
| CABINET D.MOISON | 1 | 77 |
| IFF GESTION | 1 | 63 |
| CARRE BLEU ADMINISTRATION IMMOBILIERE | 1 | 17 |
Legal entities declared in the national co-ownership register. Volunteer managing agents (individuals) are never named.
🏢 The co-ownerships on Rue de la Grande Fontaine
🏷 Latest sales in the street
| Date | Property | Area | Price | €/m² |
|---|---|---|---|---|
| 12/2025 | House 7-room | 182 m² | €1,817,000 | 9,984 |
| 12/2025 | Flat 1-room | 23 m² | €162,000 | 7,043 |
| 11/2025 | Flat 3-room | 91 m² | €700,000 | 7,692 |
| 11/2025 | Flat 2-room | 30 m² | €245,000 | 8,167 |
| 11/2025 | Flat 1-room | 42 m² | €210,000 | 5,000 |
| 04/2025 | Flat 2-room | 42 m² | €220,000 | 5,238 |
| 02/2025 | Flat 1-room | 23 m² | €182,000 | 7,913 |
| 10/2024 | Flat 2-room | 41 m² | €235,000 | 5,732 |
| 04/2024 | Flat 4-room | 106 m² | €925,000 | 8,726 |
| 02/2024 | Flat 4-room | 88 m² | €480,000 | 5,455 |
| 01/2024 | Flat 2-room | 51 m² | €387,500 | 7,598 |
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 de la Grande Fontaine in Saint-Germain-en-Laye?
The national co-ownership register (RNIC) lists 18 co-ownerships attached to Rue de la Grande Fontaine in Saint-Germain-en-Laye, for a total of 701 units.
What is the price per m² on Rue de la Grande Fontaine in Saint-Germain-en-Laye?
According to the sales recorded between 2024 and 2025 (10 flats, DVF source), the median price is €7,321/m². Across the municipality, the median is €6,544/m².
Which managing agents run the co-ownerships on Rue de la Grande Fontaine in Saint-Germain-en-Laye?
Among the co-ownerships run by a professional managing agent, the most present firms are: SOGESYM (5), SARL FB & MB (3), FONCIA MANSART (2). The full list is on this page.
How can I contact the managing agent of a co-ownership on Rue de la Grande Fontaine?
Each listing shows the type of managing agent (professional or volunteer) and lets you contact Syndic Digital, which relays your request.