The average price per m² in Achères is 3 585 €/m² for an apartment, based on actual notarised (DVF) sales. About 95 transactions are recorded each year.

Ambience illustration of Achères, in a bend of the Seine facing Conflans, at the gates of the Saint-Germain forest.
The average price recorded in Achères stands at 3 585 €/m². This average covers a mixed stock, where houses and townhouses sit alongside apartment blocks, including older complexes and recent developments tied to the town's urban growth. Internal gaps come mainly from property type, proximity to the RER stations (the RER is the Paris regional express rail network) and shops, and the condition of the home. Detached houses and well-served recent residences trade above the average, while older apartment blocks sit closer to, or even below, the town-wide marker. This figure comes from the DVF database, which lists transactions actually recorded by notaries (DVF is the French notarised sales database), to be refined according to the features of each property.
Prices from the DVF file (Demandes de valeurs foncières, published by the DGFiP), transactions actually recorded at the notary at municipality level. Cross-referenced with the Notaires de France - INSEE indices. Learn more about our methodology.
The Achères market rests first on its RER A service and on its position at the hinge of the Yvelines and the Val-d'Oise, in the Seine bend. The commune draws families, first-time buyers and Paris-region working people looking for a direct link to Paris and La Défense at a more affordable price than in the most sought-after neighbouring communes, such as Maisons-Laffitte or Saint-Germain-en-Laye. This overflow demand supports activity, both on houses and on apartments near the stations. The mixed stock can meet a range of budgets.
The railway and farming heritage of the plain still leaves vast tracts of land, which has let the commune carry out development and residential building schemes. The nearness of the Saint-Germain forest lifts the value of the quietest districts and makes a case for quality of life. As everywhere, energy performance has become a bargaining factor, especially on older apartment blocks. After the rises of previous years, the Paris-region market adjusted as credit rates climbed back up, and Achères, more affordable than its neighbours, plays the part of an alternative for budget-constrained buyers.
Achères sits above Conflans-Sainte-Honorine, its immediate neighbour on the other bank, but well below the highly sought-after Yvelines communes of the Seine bend such as Maisons-Laffitte and Saint-Germain-en-Laye.
Achères spreads across a bend of the Seine, north of the Saint-Germain-en-Laye forest and facing Conflans-Sainte-Honorine. Long rural, the commune saw its fate upended by the railway. Its vast marshalling yard was brought into service in 1882 by the Compagnie des chemins de fer de l'Ouest, at the same time as the Grande Ceinture line. Its building, in the middle of the woods, took about a hundred hectares from the Saint-Germain forest and set the railway lastingly at the heart of the communal territory.
This yard became one of the most important in France, the only major rail axis serving the west of the country and Normandy, able to sort on average a large volume of wagons each day. This activity made Achères a town of railway workers, whose population and town planning were long shaped by railway employment. The yard, after a spell of low activity around the turn of the 2000s, has since specialised in making up full trains, notably for cars.
The Achères plain, between the Seine and the forest, also has a long farming history tied to the capital's sanitation: for decades it received Paris's wastewater meant for spreading on the fields. This past marked the landscape of the plain before residential development spread there. Now linked to Paris by the RER A, with its Achères-Ville and Achères-Grand-Cormier stations, the commune combines this railway and farming heritage with a firm residential vocation.
Achères has 22 241 inhabitants. The housing stock mixes houses and townhouses, often tied to the town's railway-worker past, and a large share of apartment blocks, between older complexes and recent developments. The town is lived in year-round and fills a residential role within the Yvelines, at the hinge with the Val-d'Oise. Buyers are mainly families, first-time buyers and working people who work in Paris, at La Défense or in the employment hubs of the western Paris region, and who value the direct RER A service at a more affordable price than in the most sought-after neighbouring communes of the Seine bend.
The average price recorded in Achères is 3 585 €/m². It is an average calculated from sales registered in the DVF database (the French notarised sales database), which lists transactions actually made before notaries. It blends apartments in co-ownership and houses, whose price levels differ. Your property may vary from it depending on the floor, the condition, the presence of a lift, a garden, a parking space and proximity to the RER stations. For a reliable valuation, it is better to rely on comparable sales than on the town-wide average alone.
The surroundings of the RER A stations, Achères-Ville and Achères-Grand-Cormier, draw a good share of demand thanks to the direct service to Paris. The quiet single-family districts and recent residences trade above the town-wide average, as do properties near shops and amenities. The large older apartment complexes sit further back. The nearness of the Saint-Germain forest is a valued asset for quality of life.
Achères is served by the RER A, with the Achères-Ville and Achères-Grand-Cormier stations, which offer a direct link to Paris and La Défense. This service is one of the commune's main assets for Paris-region workers. The Transilien L line rounds out the offer from the area's stations, and the main roads give access to the west of the conurbation. This accessibility, at a more measured price than in the most sought-after neighbouring communes, supports residential demand.
The Achères market offers both segments. Townhouses and detached houses, often tied to the commune's railway-worker past, are sought after by families and trade above the average. Apartments, between older blocks and recent developments near the stations, suit first-time buyers and investors who count on the RER service. The choice depends on your project and your budget, with houses with gardens remaining the commune's tightest segment.
The vast rail estate is part of the commune's identity, and the areas near the tracks and the yard can be exposed to noise, a point to check before buying. Conversely, a large part of the territory, on the Saint-Germain forest side and in the residential districts, is far from it and offers a quieter setting. The planning documents and the statement of risks and nuisances, handed over by the seller, make it possible to place a property precisely. The RER service tied to this railway heritage remains, for its part, an asset for value.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).