Price of a 4-room apartment (T4) in Sannois
In Sannois, the median price of a T4 is €2,750/sq.m, i.e. about €217,250 for an average area of 79 sq.m. Data from actual DVF transactions by the DGFiP (38 sales over the 12 months ending 31 December 2025).
Price range (T4)
What DVF sales say about the price of a T4 in Sannois
Compared with the neighbouring towns tracked by Briveo where this property type is measured, Montmorency comes out at €3,625/sq.m, about 32% above, and Sarcelles at €1,875/sq.m, about 32% below. Out of 278 apartment and house sales in the town over 12 months, 38 concern this property type, about 14%. Sannois measures 6 property types, and the T4 comes 5th on price per sq.m, 4th on sales volume over 12 months. The average area of the T4 sold, 79 sq.m, is about 31% larger than that of the apartments sold in the town, 60 sq.m. At €2,750/sq.m, the median price lands in the lower third of the town's apartment range, 1st to 3rd quartile. Across all the town's apartments, whatever their number of rooms, the median price per sq.m has moved -4.5% over one year, based on DVF sales published by the DGFiP.
Observed sale prices of a T4 in Sannois
Of the sales of a T4 à Sannois, half closed between 185,000 € and 254,650 €, for a median price of 223,900 €.
Half of the T4 sold measure between 74 and 82 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 40 | €2,891/sq.m |
| 2024 | 28 | €2,439/sq.m |
| 2025 | 38 | €2,750/sq.m |
Between 2023 and 2025, the median price per sq.m of a T4 went from 2,891 € to 2,750 €, −4.9 %.
Source and method
- Property transfer records (DVF), published by the French tax authority (DGFiP)
- Sales recorded from 1 January 2023 to 31 December 2025
- Based on 38 sales
- Figures computed on 30 October 2026
The town
Sannois covers 4.8 km², lies between 42 and 169 m above sea level and had 26,924 inhabitants in the 2023 census.
Sannois is a French commune in the Val-d'Oise department, in the Île-de-France region. Its inhabitants are known as the Sannoisien(ne)s.
The full property page of the town
From Wikidata and the Wikipedia article « Sannois », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Sannois
Price of a T4 in nearby cities
Cities tracked by BRIVEO in the same department, median for the same property type when available.
Frequently asked questions, T4 in Sannois
Q1What is the price of a T4 in Sannois in 2026?
In Sannois, the median price of a T4 is €2,750/sq.m, with a range of €2,422 to €3,226/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a T4 of 79 sq.m in Sannois?
For the average observed area (79 sq.m), the indicative budget goes from about €191,338 (1st quartile) to €254,854 (3rd quartile), around €217,250 at the median price. Indicative calculation, DVF price per sq.m multiplied by the area, excluding notary fees.
Q3How does the price of a T4 compare with apartments in Sannois?
The median price of a T4 in Sannois is about 15% below the city's apartment median (€3,246/sq.m), based on DVF sales published by the DGFiP.
Q4How many T4 sales in Sannois?
The DGFiP DVF database records 38 sales of this type in Sannois over the last 12 months.