The average price per m² in Mont-Saint-Martin is 2 241 €/m² for an apartment, based on actual notarised (DVF) sales. About 16 transactions are recorded each year.
Atmospheric illustration of Mont-Saint-Martin, in the Longwy conurbation.
In Mont-Saint-Martin, the benchmark price stands at 2 241 €/m² for an apartment. This level reflects the structure of a former steel-making municipality in the Longwy conurbation: housing marked by workers' estates and apartment blocks inherited from the industrial era, complemented by suburban houses on the heights. The immediate proximity of Luxembourg, where many residents work, supports local demand. These values come from DVF data, the French notarised sales database, that is to say transactions actually registered with notaries, and not from estimates based on listings. They give an order of magnitude, as each property still has to be assessed according to its condition, floor level and location.
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 Mont-Saint-Martin market is driven by a particular engine: cross-border work with Luxembourg. Households working in the Grand Duchy have high incomes and look for housing on the French side, where prices remain contained compared with those across the border. This sustained demand keeps the market active, both for apartments in the older stock and for detached houses. The small number of annual transactions nonetheless makes each sale sensitive to the specific features of the property rather than to a broad trend.
In the longer term, the price trajectory remains tied to the appeal of the Luxembourg employment area and to the post-steel conversion of the Longwy conurbation. As long as the border offers job opportunities, pressure on housing on the French side should hold, particularly for properties with good links to cross-border routes. The stock inherited from the industrial era also offers renovation potential, and its energy upgrade will weigh more and more in the value gaps between properties.
Mont-Saint-Martin belongs to the Longwy basin, alongside municipalities such as Longwy, Herserange and Villerupt. Its prices should be read against this cross-border market, where the proximity of Luxembourg supports residential demand throughout.
Mont-Saint-Martin occupies a singular position in the north of Meurthe-et-Moselle, where the Belgian and Luxembourg borders meet. The tripoint between France, Belgium and the Grand Duchy lies to the north-east of the municipality, right next to Athus, on the Belgian side, and Rodange, on the Luxembourg side. This borderland location long made the municipality a crossroads between three countries, even before its industrial boom.
Like nearby Longwy, Mont-Saint-Martin owed its growth to the steel industry. Factories, steelworks, workers' housing estates and railway lines shaped the landscape and local life for good throughout the 20th century. The population grew in step with metalworking, which structured employment across the whole basin. This heritage can still be read in the urban fabric: workers' housing, rows of apartment blocks and community facilities built in the era of the blast furnaces.
The crisis of the Lorraine steel industry, at the end of the 20th century, hit the Longwy basin and its neighbouring municipalities hard, including Herserange, Longlaville and Mont-Saint-Martin. The closure of the factories forced a conversion, driven since then by the proximity of Luxembourg: cross-border work has become a major economic engine for the municipality and the whole conurbation, reshaping the residential appeal of the area.
According to INSEE, the French statistics institute, Mont-Saint-Martin has around 9 361 inhabitants, making it one of the most populous municipalities in the Longwy conurbation. The housing stock combines apartment buildings inherited from the steel-making period and detached houses spread over the heights. Demand is strongly shaped by cross-border work: many households working in Luxembourg look for housing on the French side, where prices remain more moderate than across the border. This proximity steers the market towards working buyers and first-time buyers as much as towards rental investment.
The benchmark price in Mont-Saint-Martin stands at 2 241 €/m² for an apartment. This figure comes from DVF data, the French notarised sales database, covering sales actually signed with notaries. It is an average: a renovated apartment close to services or an older home needing a refresh can differ markedly from this base, depending on the floor area, floor level, condition and location of the property within the municipality.
Mont-Saint-Martin borders Luxembourg, near Athus and Rodange. Many residents work in the Grand Duchy, where salaries are high, while living on the French side where property remains more affordable. This cross-border demand durably supports the market of the municipality and of the whole Longwy conurbation, particularly for properties with good road links to Luxembourg.
There is a distinction between the apartment buildings inherited from the steel-making period, often close to shops and services, and the suburban neighbourhoods on the heights, popular with families for their calm and their plots. Proximity to the roads leading to Luxembourg and Longwy is a strong criterion for many buyers. Properties offering quick access to the border or a parking space remain particularly attractive.
The local market offers both: a sizeable stock of apartments, linked to the industrial history of the municipality, and detached houses on the heights. An apartment suits first-time buyers and rental investment driven by cross-border demand, while a house meets the needs of families looking for space. The choice depends mainly on the budget, the intended use and the desired proximity to Luxembourg.
The municipality belongs to the Longwy inter-municipal authority, whose centre concentrates shops, the railway station and services. Luxembourg is a few minutes away by road, which accounts for a large part of its residential appeal. This twofold proximity, to a French urban centre and to a dynamic cross-border employment area, shapes demand and sets Mont-Saint-Martin apart from other municipalities in inland Lorraine.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).