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🏙 Property in Guyancourt: prices, rents, property tax and trends

🏘 Route de Troux — Guyancourt (78280)

5 registered co-ownerships in the national register (RNIC) are attached to Route de Troux in Guyancourt, for a total of 269 units. The 3 sales of flats recorded between 2024 and 2025 work out at a median price of €4,380/m² (+18% compared with the median for Guyancourt, €3,720/m²).

5
Registered co-ownerships
269
Units in total
€4,380/m²
Median price of flats
3
Sales recorded (2024 and 2025)

Change in the median price per m² (flats)

YearSalesMedian price
20241€4,380/m²
20252€4,628/m²

📋 Profile of Route de Troux

The buildings on Route de Troux in Guyancourt: the most common construction period is after 2011 (40% of the buildings with a known date); individual heating dominates (0% collective heating); only 20% have a lift. The median co-ownership has 47 units (up to 152).

On the management side, 100% of the co-ownerships whose type of managing agent is known (4) are run by a professional managing agent. The most present firm, FONCIA MANSART, runs 2 of these co-ownerships out of the 4 run by a professional managing agent.

On the market, 3 sales were recorded in the street over the period covered, with a median price of €4,380/m² for flats, i.e. 18% above the median for Guyancourt.

Main construction period
After 2011 (40 %)
Collective heating
0 %
With a lift
20 %
Median size
47 units (max 152)
Professional managing agent
100 %

Statistics calculated on the co-ownerships of the street for which the information is recorded in the national register (RNIC).

🏛 Professional managing agents on Route de Troux

FirmCo-ownerships in the streetUnits
FONCIA MANSART 2109
GITE IMMO 1152
COTOIT 15

Legal entities declared in the national co-ownership register. Volunteer managing agents (individuals) are never named.

🏢 The co-ownerships on Route de Troux

🏷 Latest sales in the street

DatePropertyAreaPrice€/m²
08/2025 Flat 3-room 66 m² €324,500 4,917
01/2025 Flat 3-room 55 m² €238,563 4,338
05/2024 Flat 2-room 46 m² €201,500 4,380

Listings in Guyancourt 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 Guyancourt

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❓ Frequently asked questions

How many co-ownerships are there on Route de Troux in Guyancourt?

The national co-ownership register (RNIC) lists 5 co-ownerships attached to Route de Troux in Guyancourt, for a total of 269 units.

What is the price per m² on Route de Troux in Guyancourt?

According to the sales recorded between 2024 and 2025 (3 flats, DVF source), the median price is €4,380/m². Across the municipality, the median is €3,720/m².

Which managing agents run the co-ownerships on Route de Troux in Guyancourt?

Among the co-ownerships run by a professional managing agent, the most present firms are: FONCIA MANSART (2), GITE IMMO (1), COTOIT (1). The full list is on this page.

How can I contact the managing agent of a co-ownership on Route de Troux?

Each listing shows the type of managing agent (professional or volunteer) and lets you contact Syndic Digital, which relays your request.