Price of a 4-room apartment (T4) in Herblay-sur-Seine
In Herblay-sur-Seine, the median price of a T4 is €3,214/sq.m, i.e. about €257,120 for an average area of 80 sq.m. Data from actual DVF transactions by the DGFiP (28 sales over the 12 months ending 31 December 2025).
Price range (T4)
What DVF sales say about the price of a T4 in Herblay-sur-Seine
Compared with the neighbouring towns tracked by Briveo where this property type is measured, Montmorency comes out at €3,625/sq.m, about 13% above, and Sarcelles at €1,875/sq.m, about 42% below. The average area of the T4 sold, 80 sq.m, is about 38% larger than that of the apartments sold in the town, 58 sq.m. The median price, €3,214/sq.m, falls in the lower third of the town's apartment price range, from the 1st to the 3rd quartile. This property type takes about 8% of local activity, 28 of the 347 apartment and house sales counted over twelve months. Of the 6 property types measured in Herblay-sur-Seine, the T4 ranks 6th by price per sq.m and 4th by number of sales over 12 months. Across all the town's apartments, whatever their number of rooms, the median price per sq.m has moved +1.6% over one year, based on DVF sales published by the DGFiP.
Observed sale prices of a T4 in Herblay-sur-Seine
Of the sales of a T4 à Herblay-sur-Seine, half closed between 210,000 € and 299,500 €, for a median price of 258,835 €.
Half of the T4 sold measure between 75 and 86 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 23 | €3,240/sq.m |
| 2024 | 28 | €3,274/sq.m |
| 2025 | 28 | €3,183/sq.m |
Between 2023 and 2025, the median price per sq.m of a T4 stayed stable, 3,240 € then 3,183 €.
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 28 sales
- Figures computed on 31 October 2026
The town
Herblay-sur-Seine covers 12.7 km², lies between 20 and 91 m above sea level and had 31,779 inhabitants in the 2023 census.
Herblay-sur-Seine (known as Herblay until November 2018) is a French commune situated in the Val-d'Oise département in the Île-de-France region. Its inhabitants are known as the Herblaysiens or Herblaisiens.
The full property page of the town
From Wikidata and the Wikipedia article « Herblay-sur-Seine », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Herblay-sur-Seine
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 Herblay-sur-Seine
Q1What is the price of a T4 in Herblay-sur-Seine in 2026?
In Herblay-sur-Seine, the median price of a T4 is €3,214/sq.m, with a range of €2,755 to €3,574/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a T4 of 80 sq.m in Herblay-sur-Seine?
For the average observed area (80 sq.m), the indicative budget goes from about €220,400 (1st quartile) to €285,920 (3rd quartile), around €257,120 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 Herblay-sur-Seine?
The median price of a T4 in Herblay-sur-Seine is about 13% below the city's apartment median (€3,678/sq.m), based on DVF sales published by the DGFiP.
Q4How many T4 sales in Herblay-sur-Seine?
The DGFiP DVF database records 28 sales of this type in Herblay-sur-Seine over the last 12 months.