🏙 Property in Saint-Germain-en-Laye: prices, rents, property tax and trends
🏘 Rue d'Alsace — Saint-Germain-en-Laye (78100)
13 registered co-ownerships in the national register (RNIC) are attached to Rue d'Alsace in Saint-Germain-en-Laye, for a total of 604 units. The 13 sales of flats recorded between 2024 and 2025 work out at a median price of €7,630/m² (+17% 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 | 9 | €7,653/m² |
| 2025 | 4 | €7,299/m² |
📋 Profile of Rue d'Alsace
The buildings on Rue d'Alsace in Saint-Germain-en-Laye: 25% of the co-ownerships whose construction period is known date from the period 1975-1993; individual heating dominates (23% collective heating, mostly with natural gas); only 17% have a lift. The median co-ownership has 17 units (up to 293).
On the management side, 71% 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 and 1 cooperative managing agent. The most present firm, FONCIA MANSART, runs 3 of these co-ownerships out of the 5 run by a professional managing agent.
On the market, 14 sales were recorded in the street over the period covered, with a median price of €7,630/m² for flats, i.e. 17% 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 d'Alsace
| Firm | Co-ownerships in the street | Units |
|---|---|---|
| FONCIA MANSART | 3 | 382 |
| IFF GESTION | 1 | 65 |
| ALBA OUEST | 1 | 39 |
Legal entities declared in the national co-ownership register. Volunteer managing agents (individuals) are never named.
🏢 The co-ownerships on Rue d'Alsace
🏷 Latest sales in the street
| Date | Property | Area | Price | €/m² |
|---|---|---|---|---|
| 12/2025 | Flat 3-room | 75 m² | €802,916 | 10,706 |
| 08/2025 | Flat 4-room | 99 m² | €563,000 | 5,687 |
| 06/2025 | Flat 4-room | 82 m² | €625,650 | 7,630 |
| 03/2025 | Flat 5-room | 122 m² | €850,000 | 6,967 |
| 12/2024 | Flat 3-room | 82 m² | €310,000 | 3,780 |
| 12/2024 | Flat 2-room | 58 m² | €362,000 | 6,241 |
| 11/2024 | Flat 4-room | 108 m² | €720,000 | 6,667 |
| 10/2024 | Flat 5-room | 123 m² | €941,301 | 7,653 |
| 09/2024 | Flat 7-room | 190 m² | €2,028,000 | 10,674 |
| 08/2024 | Flat 3-room | 69 m² | €392,000 | 5,681 |
| 03/2024 | House 4-room | 95 m² | €1,000,000 | 10,526 |
| 02/2024 | Flat 1-room | 30 m² | €285,700 | 9,523 |
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 d'Alsace in Saint-Germain-en-Laye?
The national co-ownership register (RNIC) lists 13 co-ownerships attached to Rue d'Alsace in Saint-Germain-en-Laye, for a total of 604 units.
What is the price per m² on Rue d'Alsace in Saint-Germain-en-Laye?
According to the sales recorded between 2024 and 2025 (13 flats, DVF source), the median price is €7,630/m². Across the municipality, the median is €6,544/m².
Which managing agents run the co-ownerships on Rue d'Alsace in Saint-Germain-en-Laye?
Among the co-ownerships run by a professional managing agent, the most present firms are: FONCIA MANSART (3), IFF GESTION (1), ALBA OUEST (1). The full list is on this page.
How can I contact the managing agent of a co-ownership on Rue d'Alsace?
Each listing shows the type of managing agent (professional or volunteer) and lets you contact Syndic Digital, which relays your request.