The average price per m² in Magny-les-Hameaux is 3 031 €/m² for an apartment, based on actual notarised (DVF) sales. About 28 transactions are recorded each year.
Mood illustration of Magny-les-Hameaux, in the vallée de Chevreuse, around the site of Port-Royal des Champs, in the Yvelines.
In Magny-les-Hameaux, the average price recorded stands at 3 031 €/m². That average covers a stock that is very largely suburban, spread between the historic village, the older hamlets and the sectors built during the development linked to the new town of Saint-Quentin-en-Yvelines. Detached houses and a few blocks of flats coexist there, in a rural setting preserved by the Parc naturel régional de la Haute Vallée de Chevreuse, the regional nature park. The gaps around that average come from the type of property, the size of the plot and the hamlet concerned. These figures come from the DVF database, which records the sales actually signed before notaries.
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 Magny-les-Hameaux market rests on its particular position, on the edge of the Saint-Quentin-en-Yvelines conurbation and of the vallée de Chevreuse. That dual belonging, between a dynamic employment hub and a preserved rural setting, supports steady demand from families and working households of the Paris region. The closeness of the employment areas, notably the Mérantais business park and the companies of Saint-Quentin-en-Yvelines, feeds plans to settle. The largely suburban character of the municipality answers a search for space that is hard to satisfy closer to Paris.
Supply remains constrained by the classification as a regional nature park, which limits buildable areas and the input of new schemes. In an area already largely built up and protected, available land is scarce, which keeps up the tension on houses. On the second-hand market, energy performance has become a criterion in negotiations, in particular on the suburban houses of the 1970s and 1980s built during the development of the new town. Buyers arbitrate between hamlet, plot size and condition of the property according to their plans.
Backing onto the Saint-Quentin-en-Yvelines conurbation, Magny-les-Hameaux shows prices below those of Voisins-le-Bretonneux and Guyancourt, its most highly rated neighbours, but above those of Trappes.
Magny-les-Hameaux takes its name from the Gallo-Roman estate of Magniacum, recorded in Latin forms as early as the 12th century, completed over time by the mention of the many hamlets that make up the municipality. The territory indeed brings together an old village and several scattered hamlets, among them Cressely, Buloyer, Romainville, Brouessy and Gomberville. It was on this territory that the abbey of Port-Royal des Champs was founded in 1204, a community of Cistercian nuns established in the small valley of the Rhodon. That monastic settlement lastingly marked the identity and the landscape of the municipality, which remains attached to that legacy.
Reformed at the beginning of the 17th century by Angélique Arnauld, the abbey became a centre of Jansenism and drew the Solitaires, or Messieurs de Port-Royal, who opened small schools there. That intellectual influence worried royal power. On the orders of Louis XIV, the abbey was destroyed from 1709, its demolition being completed in 1711. What remains today are the vestiges of the estate and the building of the Petites Écoles, which houses the Musée national de Port-Royal des Champs. That listed site remains the major heritage landmark of Magny-les-Hameaux and a place of memory of French religious history.
Long a rural municipality of a few hundred inhabitants, Magny-les-Hameaux passed from the department of Seine-et-Oise to that of the Yvelines on 1 January 1968. Its face changed above all with the creation of the new town of Saint-Quentin-en-Yvelines, to which it was attached: the population, around 950 inhabitants in 1954, passed 7 000 inhabitants in 1982. The municipality nevertheless keeps its farmed and wooded setting, protected by the Parc naturel régional de la Haute Vallée de Chevreuse. The Mérantais business park hosts industrial players, notably in aeronautics around Safran, which anchors local employment in the area.
Magny-les-Hameaux has 9 386 inhabitants according to INSEE, the French national statistics institute. The housing stock is clearly suburban: the detached house accounts for around two thirds of dwellings, against one third of apartments, according to INSEE. Main residences dominate very largely and owner-occupiers form the majority of households, around six in ten. That profile attracts above all families and working households of the western Paris region, looking for space and a green setting close to the employment hubs of Saint-Quentin-en-Yvelines. Buyers often look for a house with a garden in one of the hamlets, while apartments, rarer, are aimed more at first-time buyers and smaller budgets.
The average value recorded from notarial sales is 3 031 €/m². That figure aggregates very varied properties, from a hamlet house with land to an apartment close to the centre. The type of property, the size of the plot, the location and energy performance explain most of the gaps around that average. For a reliable valuation, it is better to rely on sales of comparable properties than on the municipal average alone.
The municipality has no single centre but brings together an old village and several scattered hamlets, such as Cressely, Buloyer, Romainville or Brouessy, along with more recent sectors such as le Buisson and la Croix aux Buis. Each sector has its own character, between older building stock, suburban houses and small blocks of flats. The hamlet, the size of the plot and the immediate surroundings weigh on values, which explains noticeable gaps from one address to another within the municipality.
Magny-les-Hameaux has no station on its territory but relies on the neighbouring stations. The Saint-Quentin-en-Yvelines station at Montigny-le-Bretonneux gives access to the Transilien and the RER C, while Saint-Rémy-lès-Chevreuse offers the terminus of the RER B, both a few kilometres away. The municipality is also linked by road to the employment hubs of Saint-Quentin-en-Yvelines and to the routes towards Versailles and Paris, about twenty-seven kilometres to the south-west of the capital.
The Magny-les-Hameaux market is first of all a market of houses, which make up the bulk of the stock. Buyers looking for space and a garden turn naturally to the suburban houses of the hamlets. Apartments, rarer, are concentrated in a few developments and suit first-time buyers or more contained budgets. The choice depends on your budget, on your need for outside space and on the hamlet you are aiming at. A case-by-case valuation remains the best benchmark before buying or selling.
Magny-les-Hameaux belongs to the Parc naturel régional de la Haute Vallée de Chevreuse, whose charter frames planning and the preservation of landscapes. That protection limits urban sprawl and buildable land, which contains the supply of new properties and keeps up the scarcity of the building stock. It also contributes to the quality of life sought by buyers. Before starting a project, it is useful to check with the municipality the planning rules applicable to the sector and the hamlet concerned.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).