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🏙 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).

13
Registered co-ownerships
604
Units in total
€7,630/m²
Median price of flats
14
Sales recorded (2024 and 2025)

Change in the median price per m² (flats)

YearSalesMedian price
20249€7,653/m²
20254€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.

Main construction period
Between 1975 and 1993 (25 %)
Collective heating
23 % · natural gas
With a lift
17 %
Median size
17 units (max 293)
Professional managing agent
71 %

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

FirmCo-ownerships in the streetUnits
FONCIA MANSART 3382
IFF GESTION 165
ALBA OUEST 139

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

DatePropertyAreaPrice€/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.

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❓ 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.