luxury furnished houses for sale Les Contamines-Montjoie, France

Situated on the sought-after heights of Saint-Nicolas-de-Véroce at an altitude of 1350 m, this magnificent property comprises a 250 m2 main chalet and a 50 m2 double garage, all set in more than 26,000 m2 of land. This property combines Alpine charm with contemporary features, all with breathtaking unobstructed views of the Mont Blanc Massif and the surrounding greenery, guaranteeing absolute peace and quiet. Built in 2011 over three floors, this chalet offers spacious, functional accommodation: on the garden level, a vast 55 m² living room with fireplace opens onto a separate kitchen and pantry, as well as three suites, including two master bedrooms. The ground floor features a 36 m² master suite, an additional bedroom, a laundry room, a bathroom and a relaxation area. Upstairs, a small cocoon lounge and a children's bedroom complete this superb property. Outside, the chalet has a double aspect to the east and south, maximising sunshine throughout the day. Close to the ski lifts, the property enjoys a peaceful setting, yet is within easy reach of shops, schools and transport links (motorway 12 km, train station 10 km, airport 80 km). An ideal location for enjoying summer and winter activities in the heart of the Mont Blanc massif. For further information, please contact Barnes Saint-Gervais on +33 4 50 18 14 50. Information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr

Barnes Saint-Gervais offers you this magnificent chalet offering an exceptional living experience. Located close to the ski area at an altitude of 1,300 m on an 800 m² plot with panoramic views of Mont Blanc. With a total surface area of 411 m², this chalet is a real gem, combining rustic charm and modernity. You'll find a unique aesthetic with its aged burnt wood exterior, requiring no maintenance, and its brushed wood interior, creating a warm and welcoming atmosphere. Geothermal underfloor heating ensures optimum comfort all year round, while a lift adds a touch of practicality to this exceptional property. The entire garage is insulated, providing an ideal space for your vehicles, while underfloor heating provides added comfort. The finishes are customisable, and is sold with all specially designed cupboards, adding a touch of elegance and practicality to every space. What's more, the fully equipped kitchen is also included in the sale price. Enjoy breathtaking views of the Mont Blanc Massif, with a peaceful and serene ambience. The privileged location offers both tranquillity and proximity to local amenities. This property is a unique opportunity to acquire an exceptional chalet combining traditional charm with modern facilities. Don't miss the chance to live in a place where comfort and style meet. Information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr Please contact Barnes Saint-Gervais on +33 4 50 18 14 50 for any further information

Exclusively with BARNES, discover this exceptional property offering a breathtaking panoramic view of the entire Mont-Blanc mountain range. Set in a rare natural haven at over 1,000 meters altitude, this splendid 720 m² chalet impresses with its elegance and seamless integration into the surrounding alpine landscape. Nestled on a 7,800 m² plot, the residence strikes a perfect balance between luxury, privacy, and tranquility. Inside, the refined and inviting interiors open onto expansive, light-filled volumes, including a majestic living area that faces the peaks. Eight en-suite bedrooms provide absolute comfort for guests, while a wellness space with a swimming pool, sauna, and fitness room offers relaxation after your days in the mountains. Outside, a small natural pond, which doubles as a summer swimming area, enhances the idyllic setting. Designed for both private and professional use, the property also features a convivial bar area and a fully equipped professional kitchen—ideal for entertaining or hosting exclusive events. The entire estate is fully enclosed and secured by an electric gate, ensuring both privacy and peace of mind. A rare gem that combines the Alpine art of living with high-end amenities, nestled in the heart of the French Alps.

In the heart of Megève, just steps from the Palais des Sports and the village shops, Douglas Elliman presents the Ancolie apartment—an exclusive 110 m² garden-level residence that can accommodate up to 8 people. Completely renovated in a contemporary Alpine style, the apartment combines fine materials, clean lines, and a warm atmosphere. Its private terrace, extending into a 115 m² tree-lined garden, offers unobstructed, breathtaking views of Mont d’Arbois and Rochebrune—a rare privilege at this address, where the village’s lively atmosphere coexists with absolute tranquility. Single-level layout: • Living areas: entry hall with storage, Spacious, light-filled living area with TV lounge, dining room, and fully equipped open kitchen. Direct access to the terrace and garden • Bedroom #1: Windowless double bedroom with en suite shower and toilet • Bedroom #2: Master bedroom with en suite bathroom featuring a bathtub, toilet, and access to the terrace and garden • Bedroom #3: Dormitory with bunk beds. Outdoor access • Bedroom #4: Double bedroom with en suite shower. Separate toilet and exterior access • A separate toilet and separate shower room complete the amenities Nestled between the ski area, the Mégevan lifestyle, and the tranquility of a sunny garden-level apartment, the Ancolie apartment embodies the understated elegance sought by a discerning clientele. A rare opportunity right in the heart of the village.

Chalet Têtes Rousses Ideally located in the sought-after area of Les Houches, in the heart of the Chamonix Valley, Chalet Crystal is a fully renovated chalet which enjoys a peaceful setting with outstanding views. Offering a surface area of approximately 135 m², the chalet features quality materials throughout and is arranged as follows : Upper floor : A beautiful open-plan living area with cathedral ceiling and fireplace, opening onto a balcony and terrace, and a dining area open to a fully equipped kitchen Ground floor : Two ensuite bedrooms with bathroom and WC, a third bedroom, a dormitory, bathroom, WC, laundry room and ski room Additional features: parking spaces and a mazot Rare to the market, this beautifully finished chalet is perfect for nature lovers, close to trails and pistes, and is a perfect place to enjoy the peaceful surroundings. For further information or to arrange a private viewing, please contact the team at Barnes Chamonix on +33 4 50 18 52 38. Information regarding potential risks to which this property may be exposed is available on the Géorisques website.

ENGEL & VÖLKERS NEW REAL ESTATE AGENCY: Discover this 151 m² chalet located in the highly sought-after Maisonneuve area, in Les Houches. Built in 2012 and using high-quality materials, this impeccably maintained property offers an exceptional living environment facing the Mont Blanc massif, the Fiz and Le Prarion. Its elevated position and large openings provide abundant natural light, optimal sunshine exposure and outstanding panoramic views over the surrounding mountains. The chalet features four en-suite bedrooms, a spacious and bright living area with open-plan kitchen and fireplace, a large entrance hall with dedicated ski storage, a sauna, as well as a terrace and private balcony designed to fully enjoy the exceptional setting. A closed garage and several outdoor parking spaces complete the property. An electric vehicle charging station is already installed. The property is offered fully furnished. Rare on the market, this chalet benefits from ski-in/ski-out access from the Les Houches ski area, in a peaceful and preserved environment. A property combining prime location, panoramic views and quality construction in the heart of the Chamonix-Mont-Blanc valley. Engel & Völkers Chamonix-Mont-Blanc 174 rue du Docteur Paccard 74400 CHAMONIX +33 (0)6 64 52 99 93 / [email protected] Référence E&V : W-0492NB Energy rating: C (174 kWh/m²/year) Gas emissions rating: A (5 kg CO/m²/year) Estimated annual energy costs: between 1 755 euros and 2 375 euros per year. Price: 1 490 000,00 euros Transaction fees incl. VAT payable by the seller. Information regarding potential natural risks to which this property may be exposed is available on the Géorisques website Géorisques: www.georisques.gouv.fr.

Chamonix Sotheby's International Realty presents Chalet Alma, an elegant 4-bedroom property, recently renovated. Located in a peaceful, forested setting, the chalet enjoys a privileged position offering spectacular views of the Les Houches ski area as well as the Dôme du Goûter. The chalet’s architecture blends traditional wood with contemporary finishes, creating a warm and refined atmosphere. The chalet is laid out as follows: Upper Level: A modern, spacious kitchen, open to a living room and dining area, with access to a large terrace through expansive floor-to-ceiling windows. The space is bathed in light and offers panoramic mountain views. A wood-burning stove and vaulted ceilings, adding warmth and character to the space. Two bedrooms with en-suite bathrooms complete this level. Garden Level: An office and two additional bedrooms with en-suite bathrooms. Exterior and Annexes: An additional 25 m² terrace at the rear of the chalet with the possibility of installing a jacuzzi. A closed garage and outdoor parking for 4 to 5 vehicles, with the possibility to build a carport. Chalet Alma combines mountain charm with modern comfort, offering bright living spaces. The exterior invites relaxation in a peaceful, natural environment. The chalet is located in a quiet and privileged area, close to ski slopes, hiking trails, shops, restaurants, and local amenities. For further information, please contact Carla VUILLAUME, Chamonix Sotheby’s International Realty, at +33 6 49 78 96 01.

Découvrez le charme d'un chalet indépendant parfaitement intégré dans son écrin de nature. Ce chalet aux prestations haut de gamme réparti sur 3 étages, pour une superficie habitable de 172 m² comprend, 4 chambres confortables, chacune avec sa propre salle de bain pour préserver l'intimité de chacun, un spacieux séjour et une cuisine semi-ouverte entièrement équipée. Après une journée active, détendez-vous dans le sauna privatif de votre chalet. Vous y admirerez une vue imprenable sur les montagnes et bénéficierez d'une cave personnelle, d'un casier à skis et d'un parking intérieur. Le chalet est vendu entièrement meublé. Les Granges d'En Haut permettent également un accès aux installations du spa Deep Nature, sur réservation préalable. Profitez d'une piscine intérieure pour vous ressourcer. Vous pourrez également profiter d'un restaurant sur place : 'La table des granges'. Condominiums of 6 units (No proceedings in progress). Annual expenses : 6000 euros.

It is a truly rare opportunity that we are presenting to you today, nestled in the heart of the Chamonix valley. Welcome to this former alpine farmhouse, entirely reinvented and set within a private, pristine 2-hectare estate. Our immediate favorite feature? A spectacular, panoramic, and unobstructed view of the Aiguille du Midi, with absolutely no overlooked neighbors. Here, time stands still, privacy is absolute, and the sense of disconnection is total. From the moment you step inside, the tone is set: the volumes are grand. The vast cathedral living room, centered around a majestic stone and reclaimed wood fireplace, is a genuine invitation to warmth and shared moments. The ultra-premium renovation, executed with rare precision, perfectly balances the authentic soul of period materials with the modern comfort of today's high-end technology. Absolutely nothing has been left to chance. Perfectly designed to host family and entertain guests in absolute comfort, this exceptional chalet is in pristine, move-in condition and offers an ideal layout. The sleeping quarters feature 6 beautiful en-suite bedrooms—true havens of peace, each offering its own unique atmosphere. A spacious suspended office blends serenity and inspiration, while the dedicated leisure spaces include a fully equipped home gym and a playroom for entertainment and relaxation. Outside, the private 2-hectare grounds provide a unique natural playground, completely hidden from sight, yet remaining in immediate proximity to the ski slopes and the resort center. This is an exceptional family sanctuary where understated luxury meets the untamed nature of the high mountains. A truly 'ready-to-live' property that represents a particularly rare opportunity in today's Chamonix valley market. Location: Les Houches, Chamonix Mont-Blanc. Layout: 6 bedrooms, 1 office, gym, playroom. Land: 20,000 sqm of private estate. Contact us today to schedule a private viewing and discover this hidden treasure.

Chamonix Sotheby’s International Realty presents Farmhouse Montana, authentically rebuilt in 2020 to preserve the spirit of the original 18th-century farmhouse. With no neighbours, nearly two hectares of land, and a privileged position above the valley, this property offers complete privacy while maintaining quick access to the centre of Les Houches. This authentically beautiful home has been crafted with meticulous attention to detail, the highest quality noble materials, and a layout intelligently designed for maximum comfort. With 476 m2 of habitable space and a 74 m2 garage, the property is arranged over three levels as follows: Ground Floor: Two entrances – a ski room and the main vestibule – lead to over 80 m2 of living space, including a cosy cathedral-style snug separated by an elegant double-sided fireplace, and a refined country-style kitchen opening onto a large dining room. There is also an office, a second kitchen suitable as a private chef’s station or utility kitchen, a laundry room, guest WC, and two large en-suite guest bedrooms. First Floor: Featuring spectacular high ceilings with exposed wooden carpentry, large windows, and an open mezzanine with an elegant fireplace, the first floor offers three en-suite bedrooms, each with both shower and bathtub, as well as a small office space. Basement Level: Includes a large versatile room that could serve as a cinema or wellness area, a gym, storage, and a technical room with a highly energy-efficient pellet heating system. Expansive terraces offer complete privacy and panoramic views of Les Aiguilles, Les Fiz mountain range, and the Chamonix valley – perfect for alfresco summer dining or the addition of an outdoor jacuzzi. The nearly two hectares of well-maintained grounds are a rare treasure in the Chamonix valley. A distinguished example of high-end modern construction with authentic character, this property is wonderfully secluded yet exceptionally well connected: Bellevue ski station is just five minutes, Chavants Lake eight minutes, and the centre of Chamonix 15 minutes by car. For further information, please contact Joanna Jurgielewicz at Chamonix Sotheby’s International Realty at ‭+33 7 72 44 26 79.

The advertiser did not provide an english description for this listing.

In the heart of Mont d'Arbois, just a stone's throw from the slopes and the golf course, and a 10-minute walk from the center, this recently renovated chalet spread over four levels is organized as follows: Ground floor: an entrance with a dressing area leading to a cathedral-style living room with large bay windows, a dining room, a bar area, and a kitchen. A large terrace allows one to enjoy sunshine all day long, shielded from view. A closed garage and a ski room complete this level. Top floor: a second living room (TV area) with openings onto the beautiful floor, two bedrooms, two bathrooms, and a study. Garden level: three bedrooms with their own bathrooms, including a master with a dressing room, shower, and bathtub. Intermediate floor: an indoor pool with a steam room, a shower, and a toilet. Basement: a cinema room, a fitness area, a massage room, a pantry, a caretaker's lodge, a laundry room, and a technical room. An elevator provides access to all floors of the chalet. Reduced notary fees and recoverable VAT under conditions.This description has been automatically translated from French.

Chalet Lumière Just a few steps from the Prarion cablecar, in the highly sought-after Chavants area, discover Chalet Lumière, an exceptional property located within a hotel residence offering premium amenities: a swimming pool, sauna, hammam, spa, and massage area. This chalet will charm you with its refined finishes and breathtaking views of the Mont-Blanc range. The layout is as follow : - Ground floor: a living area with a fireplace, with a dining room opening onto a balcony with an stunning view of the Mont-Blanc massif, a fully equipped kitchen. - First floor: two en-suite bedrooms, each with a bathtub, shower, WC, and dressing room. - Garden level: one en-suite bedroom with a bathroom accessible to persons with reduced mobility (PMR) and WC, a fourth bedroom, a sauna, a bathroom, and a laundry room with storage space. Additional Features: Private covered parking, a cellar and a ski locker. Annual co-ownership charges: €5,600 (co-ownership of 75 lots, no ongoing legal proceedings). Contact: For more information or to schedule a visit, contact Barnes Chamonix at +33 4 50 18 52 38. Legal Information: Details about any potential risks related to this property are available on the official website: www.georisques.gouv.fr.

Chalet Clara Just a few steps from the Prarion cablecar, in the highly sought-after Chavants area, discover Chalet Clara, an exceptional property located within a hotel residence offering premium amenities: a swimming pool, sauna, hammam, spa, and massage area. With a total surface area of 176 m², this chalet will charm you with its refined finishes and breathtaking views of the Mont-Blanc range. The layout is as follow : - Ground floor: a living area with a fireplace, with a dining room opening onto a balcony with an stunning view of the Mont-Blanc massif, a fully equipped kitchen. - First floor: two en-suite bedrooms, each with a bathtub, shower, WC, and dressing room. - Garden level: one en-suite bedroom with a bathroom accessible to persons with reduced mobility (PMR) and WC, a fourth bedroom, a sauna, a bathroom, and a laundry room with storage space. Additional Features: Private covered parking, a cellar and a ski locker. Annual co-ownership charges: €3,500 (co-ownership of 75 lots, no ongoing legal proceedings). Contact: For more information or to schedule a visit, contact Barnes Chamonix at +33 4 50 18 52 38. Legal Information: Details about any potential risks related to this property are available on the official website: www.georisques.gouv.fr.

Chalet Pablo. In the heart of Maison Neuve, the sunniest neighborhood in Les Houches, this chalet by a renowned builder combines elegance and comfort. Nestled in a peaceful setting, it offers breathtaking views of the Mont-Blanc Massif and privileged access to the Les Houches ski area. A chalet with generous volumes and meticulous finishes. This chalet boasts superb living spaces bathed in light thanks to its large bay windows. Built on several levels, it has been designed to offer perfect harmony between aesthetics and functionality. First floor: an entrance hall with checkroom leads to a wellness area comprising a sauna, a laundry/technical room and a bedroom with en-suite shower room and WC. A ski room and garage complete this level. Garden level: a spacious living area features a cosy lounge with fireplace, a convivial dining room and a fully equipped open-plan kitchen. An en suite bedroom with WC is also located on this floor. Large bay windows open onto a magnificent panoramic terrace leading to the garden. Second floor: two en suite bedrooms with two single beds for children, one of which has its own private balcony from which to admire the surrounding peaks. An enchanting setting in the heart of the mountains Set in carefully landscaped grounds, this chalet benefits from an unspoilt natural environment, ideal for relaxation and outdoor pursuits. The spacious terrace is ideal for enjoying the exceptional panorama of Mont Blanc and sharing special moments with family and friends. A sought-after location, between nature and skiing Maison Neuve offer a peaceful, sunny living environment, right next to the slopes and hiking trails. This highly sought-after area of Les Houches seduces with its authenticity and proximity to Chamonix, while guaranteeing quick access to amenities. The assets of this chalet ✔ Recent chalet with compliance ✔ Panoramic view of the Mont-Blanc Massif ✔ Bright living spaces with access to terrace and garden ✔ 4 en suite bedrooms, one of which is on the first floor ✔ Sauna and ski-Room ✔ Garage, outdoor parking and electric vehicle terminal For more information, please don't hesitate to contact our team of English real estate agents, Barnes Chamonix on +33 4 50 18 52 38. Barnes Chamonix on +33 4 50 18 52 38. Information on the risks to which this property is exposed is available at https://www.georisques.gouv.fr/

Nichée dans un hameau discret, entre Saint-Gervais et les Contamines-Montjoie, cette ancienne ferme savoyarde a été entièrement repensée avec un rare souci du détail. A plus de 1.100 mètres d'altitude, dans un secteur prisé pour sa quiétude et ses panoramas exceptionnels, cette propriété bénéficie d'un ensoleillement optimal. Entourée de nature elle constitue un havre de paix pour les amateurs d'authenticité et de confort. D'une surface totale de 260 m², elle dévoile de beaux volumes de vie, avec 4 à 5 chambres selon vos besoins, et un jardin plat de 600 m². La pièce de vie principale, lumineuse et chaleureuse, s'ouvre sur l'extérieur et invite à la contemplation. Offrant un juste équilibre entre discrétion, élégance et confort, cette propriété rare sur le marché peut également séduire une clientèle en quête d'un bien d'exception à fort potentiel locatif.

The advertiser did not provide an english description for this listing.

Saint Gervais Mont-Blanc, built on a plot of land of 1074 m², this chalet with a floor area of 200 m² enjoys a dominant 'position' over the village. Located 1 km from the village center on foot and from the 'Sporting Club' (Swimming pool, tennis, and mini-golf), this chalet includes: On the ground floor: An open entrance, two bedrooms each with a dressing room and a shower room with toilet, a boiler room with storage. On the garden level: A large living room with a fireplace lounge, a dining area, an equipped open kitchen leading to the large corner balcony and the garden facing South and West, a bedroom with its shower room and a guest toilet. On the upper floor: A spacious master bedroom with its shower room and dressing room. Its sunshine and incredible view of Mont-Joly, Mont d'Arbois, the Aravis mountains, and the village make it a very pleasant chalet to live in. Estimated annual energy expenses for standard use between €4960.0 and €6750.0 indexed to the years 2021, 2022, 2023 (subscriptions included).This description has been automatically translated from French.

The advertiser did not provide an english description for this listing.

Saint-Gervais - Cupelin - Located in a quiet and sunny dead-end street, come discover this property with exceptional views of Mont-Blanc and the surrounding peaks. Set on a plot of more than 1500m², the farmhouse consists of 8 rooms, including 5 bedrooms, as well as an independent studio. On the ground floor, an entrance hall, a spacious bright living room with a fireplace, a separate kitchen, several storage areas, one bedroom, and a bathroom. The upper floor features a large room with exposed beams, three bedrooms, a shower room, and a bathroom, complemented by an independent studio. This atypical property benefits from a double carport and an outdoor swimming pool with a beautiful terrace overlooking Mont-Blanc. Fees to be borne by the seller. Energy class B, Climate class B Average estimated amount of annual energy expenses for standard usage, established based on energy prices from the year 2021: between €1355.00 and €1834.00. Information on the risks to which this property is exposed is available on the Géorisques website: georisques.gouv.fr.This description has been automatically translated from French.

SAINT GERVAIS MONT BLANC – LE BETTEX – 5 BEDROOM CHALET WITH STUNNING VIEWS OF MONT BLANC In Saint-Gervais Mont-Blanc, at the foot of the Bettex ski slopes, discover this 5 bedroom chalet of 155 m², renovated in 2013, offering breathtaking views of the majestic Mont Blanc massif. Built over 3 levels, it is laid out as follows: Lower ground floor: an entrance hall, a cloakroom/ski room, a functional laundry room, a dormitory-style bedroom, a bathroom with WC, and a sauna for your moments of relaxation. Upper ground floor: the living area with a cosy lounge featuring a pellet stove, a convivial dining space, and a fully equipped open-plan kitchen. A large balcony and a terrace are accessed from this level, perfect for admiring the spectacular Mont Blanc view year round. This level also includes a bedroom and a bathroom with WC. Top floor: a master suite with private bathroom/WC and dressing room, plus two additional bedrooms and a bathroom with WC, providing ample sleeping capacity. This functional chalet combines refined features with optimal comfort in an enchanting mountain setting—an absolute must-see! Contact: Andrew YATES - +33 (0)757 488 112 or [email protected] Fees to be paid by the seller. Energy class C, Climate class A Estimated amount of annual energy expenditure for standard use: between 1805.00 € and 2441.00 € for the years 2021, 2022, and 2023 (including subscriptions). Information on the risks to which this property is exposed is available on the Geohazards website: georisques.gouv.fr.

Perfectly placed chalet situated just behind the centre of Saint Gervais and less than 5 minutes from the church. Made up of 3 large apartments large garage, several storage areas and boiler room with a recently installed air source heat pump and in the garden the spa. Apartment 1 with direct access to the garden has 2 bedrooms, equipped kitchen, living and dining room with access to the south terrace and the west facing balcony, bathroom, WC. Apartment 2 on the 1st floor is made up of 3 bedrooms, equipped kitchen, living room bathroom and WC and like apartment 1 has the west facing balcony and South facing terrace with acces from the bedrooms or the living room. Apartment 3 on the top floor under the eaves has 1 bedroom, living + dining area, west facing balcony, kitchen and shower room and WC. All areas possible to link up to create one large chalet or ideal rental opportunities. VIRTUAL VISIT AVAILABLE Les honoraires sont à la charge du vendeur. Les informations sur les risques auxquels ce bien est exposé sont disponibles sur le site Géorisques : www. georisques. gouv. fr. Réseau Immobilier CAPIFRANCE - Votre agent commercial (RSAC N°502 571 011 - Greffe de ANNECY) Mark JOHNSTON Entrepreneur Individuel 06 19 13 58 69 - Réf.914003

A Saint-Nicolas de Véroce, cette authentique ferme de 1796 séduit par son charme d'antan, ses volumes généreux et ses multiples expositions. Depuis plusieurs terrasses, elle offre une vue imprenable sur les massifs environnants, dans un cadre paisible et préservé. Développant environ 202 m² habitables, la propriété se compose de deux logements indépendants. La partie principale conjugue caractère et confort : cuisine ouverte sur salle à manger, salon avec cheminée, cinq chambres, une salle de bain, une salle d'eau, toilettes séparés, cave, et une vaste pièce de détente agrémentée d'une borne d'époque. Véritable atout, un atelier de 60 m² attenant à la maison principale, ainsi que des combles, offrent un beau potentiel d'aménagement, permettant la création d'espaces de vie supplémentaires ou de projets sur mesure. Un appartement indépendant d'environ 40 m² complète le bien. Il comprend une chambre, un coin montagne, un séjour avec cuisine, une salle d'eau et des toilettes. Capable d'accueillir jusqu'à 4 personnes, il dispose de son propre accès et peut être aisément relié à l'habitation principale. Étiquette énergétique mise à jour conformément à la réforme DPE entrée en vigueur en janvier 2026, sur la base de l'attestation de modification délivrée par l'ADEME.