Haute-Savoie · 74400

Chalets in Chamonix,
architect and project manager.

Atelier NovAlp designs and builds your chalet in Chamonix at the foot of Mont Blanc, whether a high-end new build or a major renovation. With architect, project manager and general contractor under one roof, we manage your project from the first sketch to handing over the keys, taking into account the local plan (PLU) requirements, premium local materials and the constraints of the high-mountain climate.

1 035
Average altitude of Chamonix in metres
10
Hamlets covered in the valley
4,810 m
Summit of Mont Blanc
48 h
Response time to your enquiry

Chalets in Chamonix: a high-end market at the foot of Mont Blanc

Chamonix Mont-Blanc is no ordinary town. World capital of mountaineering since 1786 and gateway to the Mont Blanc massif, the Chamonix valley is home to one of the most demanding and most highly valued chalet markets in Europe. Land is scarce, buyers are demanding (international clients, high-end second homes, investors), and the town's local plan (PLU) imposes architectural rules among the strictest in the French Alps. Building or renovating a chalet in Chamonix means taking on a project of another dimension technically, legally and financially.

Atelier NovAlp works throughout the Chamonix valley, from its office in Aix-les-Bains. Our dual role as architect and project manager, together with our RGE CertiRénov status, lets us manage every aspect of a chalet project in Chamonix: local plan analysis, made-to-measure design, building permit application, consultation of local trades specialising in old timber, stone and slate, then site supervision through to completion. We know the particularities of each hamlet, from Argentière to Les Houches, via Servoz, Vallorcine and Les Praz.

The high-mountain climate demands rigorous technical choices: exceptional snow loads, freeze-thaw cycles, reinforced insulation, controlled airtightness, triple-glazed windows. The materials chosen for a chalet in Chamonix worthy of the name are those of the local heritage: old timber (spruce, larch), granite or gneiss stone for the base, slate or lauze stone slabs for the roof. Far from being purely aesthetic, these choices determine how well the building withstands the climate and how the property holds its value over the long term. We help each client weigh up heritage requirements, RE2020 energy performance and the overall budget.

Whether your project is a new build, a major renovation of an old chalet, an extension or adding a storey, we bring the method: free preliminary feasibility study, detailed estimate trade by trade, a schedule that accounts for seasonal constraints (structural work outside winter, finishes during the cold season), and a single point of contact from the first meeting through to the one-year completion guarantee (garantie de parfait achèvement).

Our recent projects

All projects →

Our office is in Aix-les-Bains. Here are some chalet and architect-designed house projects completed in the Northern Alps.

Our services for your chalet in Chamonix

Architect, project manager, general contractor and RGE CertiRénov: all our skills combined to manage your chalet project in Chamonix from start to finish, without multiplying points of contact.

Chalet architect, Mont Blanc

Made-to-measure design of a chalet adapted to the Chamonix local plan (PLU), the topography of the plot and the view of the massif. Sketch design, outline design (APS), detailed design (APD), building permit application. Our plans comply with the rules on roof pitches, proportion of timber, heights and integration into the site.

Chalet construction in Chamonix

High-end timber frame new build, premium materials (old timber, stone, slate), enhanced RE2020 performance for altitude. From consulting the trades to managing structural work and finishing trades, we take responsibility for budget and timescales.

Chalet renovation in Chamonix

Major renovation of an old chalet: roof structure repairs, internal or external insulation, triple-glazed windows, reconfigured interior layout, made-to-measure bathrooms. We know how to work with the constraints of existing buildings and the heritage requirements of old valley chalets.

Project management

Complete site management: consultation and selection of the trades, OPC (scheduling, management and coordination), weekly meetings, approval of progress payments, handling of contingencies and handover. Rigorous project management is decisive in Chamonix, where the trades are in very high demand.

Extensions and additional storeys

Extending an existing chalet while respecting its architectural style and the Chamonix local plan. Adding a storey to create extra bedrooms, side extension for a living space or a spa, made-to-measure timber conservatory. A chalet in Chamonix that is extended well immediately gains value.

RGE energy-efficiency renovation

Our RGE CertiRénov certification gives access to MaPrimeRénov' and Energy Savings Certificates (CEE). On Chamonix's old chalets, a complete package (insulation + heat pump + windows) turns a property rated F or G into a comfortable, economical home, boosting its resale value.

The whole Chamonix valley

From Servoz to Vallorcine, we work in every hamlet of the Chamonix valley as well as in neighbouring towns in Haute-Savoie. Each area has its own planning and access specifics.

Chamonix centre Argentière Les Houches Servoz Les Tines Les Bossons Les Pèlerins Les Praz Le Tour Vallorcine Montroc Le Lavancher Passy Saint-Gervais-les-Bains Sallanches Combloux Cordon Domancy Megève Saint-Nicolas-de-Véroce Les Contamines-Montjoie Demi-Quartier

Types of chalet in Chamonix

High-end new chalet construction in Chamonix. On the few plots still available in the valley, new-build projects involve demanding programmes: timber frame chalets of 200 to 400 m², mixed timber and stone structures, dual-aspect spaces with large glazed openings facing Mont Blanc, wellness areas with spa, sauna and indoor pool. Our involvement first as architect and then as project manager ensures the project's consistency, from optimising the positioning on a sloping plot to managing the finishing trades.

Major renovation of old chalets in Argentière, Les Praz, Le Tour. The valley's historic hamlets are home to many chalets and Savoyard farmhouses whose timber and stone structures deserve to be preserved. Renovation involves a precise technical survey (roof structure, masonry, damp), upgrading the insulation (wood fibre, cellulose wadding), replacing windows with high-performance triple glazing, bringing electrics and plumbing up to standard, and reconfiguring the interior layout. The result: a chalet that keeps its soul while offering the comfort of an RE2020 home.

Extensions and adding a storey in Chamonix centre and Les Bossons. Rather than buying a larger property in a saturated market, many owners choose to extend their existing chalet. Side extension for a master suite, adding a storey to create an extra floor, integrating a wellness area in the basement: each solution must be assessed against the Chamonix local plan (footprint ratio, maximum height, distances to boundaries) and the structural capacity of the existing building.

Energy renovation and RE2020 at altitude. The RE2020 thermal requirements are particularly demanding at altitude, where winter temperatures and snow loads multiply the constraints. Our RGE CertiRénov certification qualifies us to design and manage comprehensive energy renovations eligible for MaPrimeRénov' and CEE. On a chalet rated F, a comprehensive renovation (insulation + ground-source heat pump + triple-glazed windows + balanced mechanical ventilation with heat recovery) easily cuts annual consumption by three.

Frequently asked questions — chalets in Chamonix

How much does it cost to build a chalet in Chamonix?
Chamonix is one of the most expensive markets in France for chalet construction. A high-end new chalet starts at around €4,500/m² excluding land and can exceed €7,000/m² for projects in premium materials (reclaimed old timber, local stone, slate, complex roofs). Land in Chamonix easily reaches €2,500 to €5,000/m² depending on the view of the Mont Blanc massif and the aspect. A major chalet renovation in Chamonix costs €2,500 to €4,000/m² depending on the initial condition and the quality sought. We produce a detailed estimate from the feasibility stage.
Is the Chamonix local plan (PLU) restrictive for a chalet project?
Yes, the Chamonix Mont-Blanc local plan (PLU) is one of the strictest in the French Alps. It sets precise rules on roof pitches and shapes (traditional dual-pitch roofs, with slate or lauze stone slabs preferred), the proportion of timber on façades, limited heights, restrictions on balconies and overhangs, integration into the site and preserving views of the Mont Blanc massif. Some hamlets (Argentière, Les Praz, Le Tour) have stricter specific rules. We always analyse the local plan before any sketch to ensure the building permit application is admissible.
Do I need an architect to build a chalet in Chamonix?
Using an architect is mandatory once the floor area exceeds 150 m², which is the case for most chalets in Chamonix. Beyond the regulatory requirement, involving an architect is strongly recommended even below this threshold, given the extreme technical constraints of the site (snow, frost, slope, access). Atelier NovAlp combines the roles of architect, project manager and general contractor, which considerably simplifies managing a chalet project in Chamonix.
Which materials are best for a chalet in Chamonix?
The traditional materials of the Mont Blanc massif remain the most relevant, both for integration into the site and for durability in the high-mountain climate: reclaimed old timber (spruce, larch) for façades and cladding, local stone (granite, gneiss) for the base, slate or lauze stone slabs for the roof. Untreated larch weathers to a natural grey and ages beautifully. Alongside these premium materials, particular attention is paid to insulation (wood fibre, cellulose wadding) to meet the RE2020 thermal requirements at altitude.
Do you work in the hamlets around Chamonix (Argentière, Les Houches, Servoz)?
Yes. We work throughout the Chamonix valley: Chamonix centre, Les Bossons, Les Pèlerins, Les Praz, Les Tines, Argentière, Le Tour, Vallorcine towards the Swiss border, as well as Les Houches and Servoz at the entrance to the valley. Each hamlet has its own planning specifics and winter access constraints. Our team travels from its Aix-les-Bains office and schedules on-site work taking weather and snow conditions into account.
How do you deal with high-mountain climate constraints for a chalet in Chamonix?
A chalet in Chamonix must be designed to withstand exceptional snow loads (up to 600 kg/m² on some roofs), severe freeze-thaw cycles and large temperature variations. This requires rigorous sizing of roof structures, generous roof overhangs, careful airtightness detailing and high-performance insulation throughout (roof, walls, ground floor, triple-glazed windows). Our technical studies incorporate local climate data and lessons learned from high-altitude sites.
How long does a full chalet renovation take in Chamonix?
A major chalet renovation in Chamonix (roof structure repairs, insulation, windows, floors, bathrooms, kitchen, electrics, plumbing) takes 9 to 14 months on average depending on the scale. Timescales are lengthened by sometimes difficult winter access, the supply of premium materials (old timber made to order) and the seasonal availability of the trades. Whenever possible, we always schedule structural work outside the winter period and keep the winter for interior finishes.
Do you work for international clients in Chamonix?
Yes, Chamonix attracts international clients (British, Swiss, Scandinavian, American, Middle Eastern) for whom a chalet in the Mont Blanc valley is a long-term asset. We are used to managing projects for non-resident clients: representation at planning meetings, regular reporting (photo site reports, video calls), managing the works without your day-to-day presence. Our status as a general contractor with a commitment to results is particularly reassuring in this context.
Your chalet in Chamonix?

Let's talk
at the foot of Mont Blanc.

Atelier NovAlp works throughout the Chamonix valley on your chalet project, whether a new build or a renovation. First meeting, site visit and preliminary feasibility study: free and with no obligation.