Price of a 3-room apartment (T3) in Lagny-sur-Marne
In Lagny-sur-Marne, the median price of a T3 is €3,745/sq.m, i.e. about €247,170 for an average area of 66 sq.m. Data from actual DVF transactions by the DGFiP (46 sales over the 12 months ending 31 December 2025).
Price range (T3)
What DVF sales say about the price of a T3 in Lagny-sur-Marne
Compared with the neighbouring towns tracked by Briveo where this property type is measured, Montévrain comes out at €4,365/sq.m, about 17% above, and Avon at €2,213/sq.m, about 41% below. The average area of the T3 sold, 66 sq.m, is about 18% larger than that of the apartments sold in the town, 56 sq.m. Half the town's apartment sales sit between its 1st and 3rd quartiles, and at €3,745/sq.m this median lands in the middle third of that span. Out of 275 apartment and house sales in the town over 12 months, 46 concern this property type, about 17%. On price per sq.m the T3 holds position 4th among the 6 property types Lagny-sur-Marne measures, and position 3rd on twelve-month volume. Across all the town's apartments, whatever their number of rooms, the median price per sq.m has moved +3.2% over one year, based on DVF sales published by the DGFiP.
Observed sale prices of a T3 in Lagny-sur-Marne
Of the sales of a T3 à Lagny-sur-Marne, half closed between 198,473 € and 271,750 €, for a median price of 240,000 €.
Half of the T3 sold measure between 60 and 71 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 58 | €3,888/sq.m |
| 2024 | 41 | €3,675/sq.m |
| 2025 | 46 | €3,714/sq.m |
Between 2023 and 2025, the median price per sq.m of a T3 went from 3,888 € to 3,714 €, −4.5 %.
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 46 sales
- Figures computed on 29 October 2026
The town
Lagny-sur-Marne covers 5.7 km², lies between 37 and 112 m above sea level and had 21,461 inhabitants in the 2023 census.
Lagny-sur-Marne, formerly Lagny, is a French commune situated in the département of Seine-et-Marne in the Île-de-France region and forms part of the Parisian conurbation.
The full property page of the town
From Wikidata and the Wikipedia article « Lagny-sur-Marne », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Lagny-sur-Marne
Price of a T3 in nearby cities
Cities tracked by BRIVEO in the same department, median for the same property type when available.
Frequently asked questions, T3 in Lagny-sur-Marne
Q1What is the price of a T3 in Lagny-sur-Marne in 2026?
In Lagny-sur-Marne, the median price of a T3 is €3,745/sq.m, with a range of €3,000 to €4,205/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a T3 of 66 sq.m in Lagny-sur-Marne?
For the average observed area (66 sq.m), the indicative budget goes from about €198,000 (1st quartile) to €277,530 (3rd quartile), around €247,170 at the median price. Indicative calculation, DVF price per sq.m multiplied by the area, excluding notary fees.
Q3How does the price of a T3 compare with apartments in Lagny-sur-Marne?
The median price of a T3 in Lagny-sur-Marne is about 3% below the city's apartment median (€3,871/sq.m), based on DVF sales published by the DGFiP.
Q4How many T3 sales in Lagny-sur-Marne?
The DGFiP DVF database records 46 sales of this type in Lagny-sur-Marne over the last 12 months.