🏙 Property in Boulogne-Billancourt: prices, rents, property tax and trends
🏘 Rue Diaz — Boulogne-Billancourt (92100)
15 registered co-ownerships in the national register (RNIC) are attached to Rue Diaz in Boulogne-Billancourt, for a total of 353 units. The 9 sales of flats recorded between 2024 and 2025 work out at a median price of €8,573/m² (+3% compared with the median for Boulogne-Billancourt, €8,289/m²).
Change in the median price per m² (flats)
| Year | Sales | Median price |
|---|---|---|
| 2024 | 6 | €8,677/m² |
| 2025 | 3 | €8,573/m² |
📋 Profile of Rue Diaz
The buildings on Rue Diaz in Boulogne-Billancourt: 57% of the buildings date from before 1949, among those whose age is recorded; individual heating dominates (13% collective heating); only 27% have a lift. The median co-ownership has 21 units (up to 66).
On the management side, 75% of the co-ownerships whose type of managing agent is known (12) are run by a professional managing agent, the rest being run by 1 volunteer managing agent and 2 cooperative managing agents. The most present firm, CABINET GOUTILLE, runs 2 of these co-ownerships out of the 9 run by a professional managing agent.
On the market, 10 sales were recorded in the street over the period covered, with a median price of €8,573/m² for flats, a level comparable to the median for Boulogne-Billancourt.
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 Diaz
| Firm | Co-ownerships in the street | Units |
|---|---|---|
| CABINET GOUTILLE | 2 | 16 |
| GRATADE | 1 | 66 |
| CABINET DE GESTION GUY SOUTOUL C.G.S. | 1 | 52 |
| ARTESIA GESTION | 1 | 46 |
| MANDA (EX- HELLO SYNDIC) | 1 | 28 |
| T I G | 1 | 24 |
| CABINET REGY | 1 | 14 |
| CABINET LOISELET PERE FILS ET DAIGREMONT | 1 | 11 |
Legal entities declared in the national co-ownership register. Volunteer managing agents (individuals) are never named.
🏢 The co-ownerships on Rue Diaz
🏷 Latest sales in the street
| Date | Property | Area | Price | €/m² |
|---|---|---|---|---|
| 12/2025 | Flat 3-room | 75 m² | €643,000 | 8,573 |
| 09/2025 | Flat 2-room | 27 m² | €250,000 | 9,259 |
| 09/2025 | Flat 2-room | 32 m² | €268,650 | 8,395 |
| 10/2024 | Flat 1-room | 18 m² | €115,000 | 6,389 |
| 07/2024 | Flat 3-room | 56 m² | €246,500 | 4,402 |
| 07/2024 | Flat 2-room | 28 m² | €248,650 | 8,880 |
| 07/2024 | House 7-room | 250 m² | €2,472,610 | 9,890 |
| 06/2024 | Flat 5-room | 125 m² | €1,291,700 | 10,334 |
| 06/2024 | Flat 2-room | 28 m² | €269,900 | 9,639 |
| 01/2024 | Flat 4-room | 98 m² | €830,400 | 8,473 |
Listings in Boulogne-Billancourt 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 Boulogne-Billancourt
❓ Frequently asked questions
How many co-ownerships are there on Rue Diaz in Boulogne-Billancourt?
The national co-ownership register (RNIC) lists 15 co-ownerships attached to Rue Diaz in Boulogne-Billancourt, for a total of 353 units.
What is the price per m² on Rue Diaz in Boulogne-Billancourt?
According to the sales recorded between 2024 and 2025 (9 flats, DVF source), the median price is €8,573/m². Across the municipality, the median is €8,289/m².
Which managing agents run the co-ownerships on Rue Diaz in Boulogne-Billancourt?
Among the co-ownerships run by a professional managing agent, the most present firms are: CABINET GOUTILLE (2), GRATADE (1), CABINET DE GESTION GUY SOUTOUL C.G.S. (1). The full list is on this page.
How can I contact the managing agent of a co-ownership on Rue Diaz?
Each listing shows the type of managing agent (professional or volunteer) and lets you contact Syndic Digital, which relays your request.