luxury real estate for sale Castelnau-de-Médoc, France

AVENSAN, 30 km from BORDEAUX beautiful single-storey house of 145 m2 comprising, a living room with fitted kitchen, pantry, hallway, three bedrooms with closets, bathroom with bath and walk-in shower, WC, covered tiled terrace with BBQ 70 m2, adjoining double garage 70 m2 plus storage room 38 m2 and insulated cellar, swimming pool with wooden terrace around it, vegetable garden, parking and enclosed garden.

Just 30 minutes from Bordeaux and the airport, and 25 minutes from the beaches, this elegant manor house combines Bordeaux charm with immediate access to the wider world. A 19th-century manor house, its vineyards are steeped in the history of the Médoc's finest wines. Here, the landscape unfolds in two distinct parts: the magnificent ocean beaches with their pine forests on one side, and the prestigious vineyards and the Gironde estuary on the other. Bordeaux is nearby. The main house offers approximately 300 sq m of living space (mezzanine, ground floor, and first floor). The property has been recently renovated with meticulous attention to materials and amenities. A small, functional winery is integrated into the grounds, allowing a winemaker to create your own custom vintage. The interior layout prioritizes simplicity and efficiency. On the ground floor, four bedrooms, each with its own bathroom, comprise the sleeping quarters, complemented by two additional toilets. Upstairs, a spacious open-plan area of approximately 115 sq m combines a dining room, living room, and fully equipped kitchen; a study/library space could easily be incorporated here. In the basement, a prepared floor plan offers potential for new projects, whether additional bedrooms or a spa-like relaxation area. The outbuildings include a wine cellar of approximately 400 sq m on two levels, a remarkable structure that complements the property's winemaking heritage and suggests various development possibilities. Located in the heart of the Médoc's prestigious vineyards, this exceptional property offers a unique lifestyle, combining a rich wine heritage, close proximity to Bordeaux, and easy access to the Atlantic beaches.

iad France - Marc Plisson offers you: In the heart of a privileged environment and sheltered from all eyes, this remarkable 400 m² master house embodies the perfect balance between authenticity, volume, and potential.From the entrance, the living spaces unfold elegantly, offering several reception lounges, a warm living room, and a friendly kitchen extended by its pantry and laundry room. The ground floor also features a complete master suite with an office, and a second bedroom with a private shower room, allowing for true single-level living. Upstairs, four additional bedrooms complete the set, including one with a private shower room, as well as a second shower room for the rest of the floor and a storage attic space.A rare signature of the property, a two-level tower offers access to a rooftop terrace, a true viewpoint dominating the surrounding vineyards. A unique place, conducive to contemplation.A cellar and a workshop enhance the property's potential, opening the way for multiple projects: activity, storage, or reinterpretation of the spaces.Outside, a 4,500 m² wooded park awaits you, fully enclosed, featuring a beautiful swimming pool and its terrace. Numerous relaxation areas, in a peaceful atmosphere and without vis-à-vis, extend the services of the property.Many recent energy renovation works and compliance updates have been carried out on the property over the past few years.Contact me for more information!Agency fees are the responsibility of the seller. Energy display information for this property: ENERGY class C index 172 and CLIMATE class C index 23. Information on the risks to which this property is exposed, including the legal obligation to clear land, is available on the Géorisques website: http://www.georisques.gouv.fr. This real estate announcement has been drafted under the editorial responsibility of Mr. Marc Plisson, independent real estate agent (without holding funds), commercial agent of SAS I@D France registered at the Bordeaux RSAC under number 534001433, holder of the real estate canvassing card on behalf of I@D France SAS.

Coldwell Banker Immoba is pleased to present this property in the heart of the charming village of Arsac, at the gates of the Médoc and its prestigious castles. It consists of a main house with undeniable charm as well as a guest annexe. You are welcomed by an elegant façade. The entrance leads to a welcoming double living room adorned with original floor tiles and beautiful fully functional fireplaces. These living spaces are extended by a comfortable library and study. The kitchen has a lovely dining area leading out to the garden. Two large bright bedrooms and a bathroom complete this level, allowing for single-level living. The upper floor features three further bedrooms. In addition, there is a two bedroomed guest house with open planned living area with kitchen & veranda. This annexe offers further potential for expansion and is currently used for holiday lets (with a 3 star classification) or can be used as a guest wing for family and friends or as a separate professional premises. The beautifully landscaped garden includes fruit trees, roses, a vegetable garden, and lawns. The pool and its spacious sun terraces are completely private. Finally, it is possible to shelter three cars in the garage and comfortably park four others. This property is in very good condition, featuring spacious rooms and a lot of character. Fees payable by the owner Energy Performance Diagnosis (DPE): D: 202, Greenhouse Gas Emissions (GES): B: 6 Estimated annual energy costs for the property between €1940 and €2680. Presented by Annie Herte Commercial Agent RSAC 835 362 922 RCP MA035A20ANPM/O2 Information on the risks to which this property is exposed is available upon request or on the Georisques website: www.georisques.gouv.fr All our properties on www.immoba.fr

iad France - Thierry TIEMBLO offers you: In a hamlet of Saint-Aubin-de-Médoc, just a few minutes from the city center and near the Pian Médoc golf course, discover this superb contemporary single-storey house of 167 m², set on a landscaped plot of more than 2,650 m².Nestled in a calm and preserved environment, this property has been designed to fully live indoors and outdoors, in harmony with the surrounding nature.From the entrance, you will be captivated by a vast living space of over 77 m², bathed in light. The generous volumes and large openings immediately create a warm and soothing atmosphere. The open kitchen, extended by an adjoining pantry, is an ideal space to share convivial moments.Beautiful fully retractable bay windows erase the boundaries between the house and its covered terrace. This then becomes a true extension of the living spaces, offering a rare feeling of space and freedom, with the sensation of enjoying a house with even more generous dimensions.The night space is organized around two distinct areas: an elegant master suite with a view of the garden, dressing room, and a shower room with sauna, then a second area composed of two bedrooms, a shower room, and separate toilets.A laundry/pantry harmoniously completes the whole.Outside, a large parking area, a garage, and a generous carport complete the property's amenities, providing an ideal space to accommodate multiple vehicles, a camper, a boat, or to meet the needs of an outdoor activity enthusiast.The property also has a set of independent annex spaces, designed and particularly comfortable, offering great flexibility of use according to everyone's projects: professional activity, teleworking, workshop, gym, leisure, or storage. These additional volumes of over 100 m² are a real asset and bring rare versatility to the entire property.The garden, enhanced with terraces and a barbecue area, invites you to enjoy a green and peaceful setting.Quality construction, carefully selected materials, effective insulation, and reversible ducted heating (DPE A/A): this property combines comfort, serenity, and rare features in the area.A heartwarming home to discover quickly.Agency fees paid by the seller. Energy display information for this property: ENERGY class A index 69 and CLIMATE class A index 2. Information on the risks to which this property is exposed, including the legal obligation for clearing, is available on the Géorisques site: http://www.georisques.gouv.fr. This real estate advertisement has been drafted under the editorial responsibility of Mr. Thierry TIEMBLO, independent real estate representative (without fund holding), commercial agent of SAS I@D France registered with the BORDEAUX RSAC under number 903365773, holder of the real estate canvassing card on behalf of the company I@D France SAS.This description has been automatically translated from French.

Located just minutes from Bordeaux, on the route to the ocean beaches, this contemporary wooden house built in 2015 offers elegant architecture, absolute comfort, and a preserved natural environment. Set within a beautiful 2-hectare wooded park featuring an oak grove, the property provides a unique, private living environment with no overlooking neighbors. This peaceful haven combines aesthetics, energy efficiency (DPE class B), and daily well-being. Inside, a bright living room with cathedral ceilings offers generous volumes and a warm, contemporary atmosphere. The living area opens onto nature, inviting relaxation by the wood stove in winter or on the large wooden terraces in summer, extending the living space outdoors. The house includes two superb suites, a mezzanine library, a large laundry room, and ample storage. High-quality materials and construction create a soothing ambiance where every detail ensures comfort and harmony. A large barn completes the property, offering many possibilities: workshop, leisure space, or animal shelter. The ideal-sized land also allows for a swimming pool and personalized projects. This rare property blends refinement, nature, and privacy, offering a privileged lifestyle close to Bordeaux and the ocean. A unique home for lovers of nature, tranquility, and authenticity.

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

25 km from Bordeaux in the Médoc Regional Natural Park, 30 km from Mérignac Airport a property consisting of two old houses, one of which is currently rented. a main house of 375 m2 with all modern comforts ready to welcome you with a very beautiful wooded park, beautiful swimming pool, garage and outbuildings. A second adjoining house of 143 m2 currently rented for EUR850, comprising a kitchen, living room, four bedrooms, bathroom with WC, shower room, converted attic and enclosed garden with no overlooking neighbors. in a verdant setting of 4182 m2 in the heart of the village, perfectly enclosed and with no overlooking neighbors

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

The agency Cadre d'Envies is pleased to present this beautiful house built in 2008, approximately 247 m2, on 2 levels, on a wooded plot of 2000 m2. It is located in Arsac, at the end of a dead-end street, in a very quiet environment. The ground floor opens onto a beautiful, bright living room facing south with a kitchen and a back kitchen. The veranda provides additional space. The sleeping area is separated into two: 4 bedrooms, a shower room, and a bathroom on one side, and 2 other bedrooms and a shower room on the other side. Upstairs, there is an office, a shower room, and a spacious bedroom with a balcony. The exterior includes a beautiful landscaped garden, without vis-à-vis, with a Dordogne stone terrace and a covered pool measuring 11.5 m X 5 m. Behind the electric gate, you can easily park several vehicles, including 2 under the carport. In terms of comfort, there is gas heating, underfloor heating, and double glazing. Contact us to arrange a private visit. Contact: Paul SABOURIN 06 13 55 73 13. Energy performance diagnosis: C - Greenhouse gas emissions: C. Net selling price: 625,000 EUR. Fees payable by the buyer: 31,250 EUR. Selling price including fees: 656,250 EUR. Mandate: 1052. Information on the risks to which this property is exposed is available upon request or on the Géorisques website: www.georisques.gouv.fr. This announcement is brought to you by SABOURIN Paul - EI - NoRSAC: 898507009, Registered at the Bordeaux Commercial Court.

The agency Cadre d'Envies is pleased to present to you exclusively this beautiful wooden frame house built in 2011, with an area of approximately 179 m2, on two levels, on a plot of over 2000 m2. It is located in Arsac, at the end of a cul-de-sac, in a very quiet environment. The ground floor opens onto a spacious living area, bright, south-facing, with a nice high ceiling, of about 55 m2, comprising a lounge, dining area, and open kitchen. The master bedroom with dressing room and bathroom with shower and bathtub has its own terrace. Two other bedrooms on the other side of the living room share a shower room. A laundry room and a spacious garage of 28 m2 complete the ground floor. The first floor features a mezzanine with a study area, as well as a fourth bedroom and its shower room. The exterior includes a very beautiful wooden terrace, ideal for entertaining. The garden is landscaped and suitable for a swimming pool. For comfort, there is electric heating, a fireplace, aluminum double glazing, and electric roller shutters. Contact us to arrange a private viewing. Contact: Paul SABOURIN 06 13 55 73 13. Energy performance certificate: B - Greenhouse gas emissions: A. Net seller price: 475,000 EUR. Fees borne by the buyer: 23,750 EUR. Sale price including fees: 498,750 EUR. Mandate: 997. Information regarding the risks to which this property is exposed is available on request or on the Géorisques website: www.georisques.gouv.fr. This advertisement is offered by SABOURIN Paul - EI - NoRSAC: 898507009, Registered at the Bordeaux Commercial Court.

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

The CADRE D'ENVIES ARSAC Agency offers you, in a sought-after residential environment, both peaceful and ideally located in the immediate vicinity of the town centre accessible on foot, this elegant family home, remarkable for the quality of its construction and the excellence of its design. Built by a renowned regional developer, it offers high-quality features and a perfectly designed interior layout for smooth and comfortable daily living. The balanced and bright spaces flow naturally around living areas that open onto the outdoors, creating a warm and welcoming atmosphere. Designed to accommodate family life, the house combines functionality and comfort, with an optimized layout that allows for both reception areas and more intimate spaces. Outside, the landscaping seamlessly extends the living spaces. A large terrace, complemented by a covered area, allows you to fully enjoy sunny days, while the 10 x 5 meter swimming pool blends perfectly into a peaceful and secluded environment. An outbuilding of approximately 30 m2 is a real added bonus. Completely self-contained with its own shower room and toilet, it can be adapted to many projects: professional practice, teleworking space, accommodation for family or friends, or even independent housing depending on the needs. Two garages and outdoor parking spaces complete the property. A coherent and high-quality property, offering a sought-after living environment, ideal for a family looking for tranquility without sacrificing proximity to amenities. Don't hesitate to contact us to arrange a visit ! Energy Performance Certificate (EPC) C / Greenhouse Gas Emissions (GHG) C Price including agency fees of 720,000? The agency fees are 4.35% including VAT, payable by the buyer. The net selling price is 690,000? Contact: MICHAËL DE CARVALHO on 0680602761 www.cadredenvies.fr Information on the risks to which this property is exposed is available on request or on the Géorisques website: www.georisques.gouv.fr

A nugget to seize in MARGAUX! Within the largest and most prestigious appellation of the Médoc, it boasts no less than 21 Grands Crus Classés, a record! This property produces Margaux, Haut-Médoc, and Bordeaux. Classic grape varieties: merlot, cabernet sauvignon, petit verdot, and cabernet franc. File under research mandate, confidentiality agreement, and proof of funds.This description has been automatically translated from French.

Beautiful house for saleThis description has been automatically translated from French.

Beautiful house for sale. It is a unique opportunity for a luxury home purchase in Brach. Ideal for those looking for comfort and elegance. Energy Performance Certificate coming soon.This description has been automatically translated from French.

Coldwell Banker Immoba Realty's Bordeaux office exclusively presents this sumptuous villa located on the outskirts of Bordeaux in the Médoc. You will enjoy a peaceful lifestyle, the beauty of the vineyards, walks in the forest and wide open spaces, while remaining close to all amenities. At the end of a driveway in a quiet, secluded setting, discover this exceptional villa built in 2026 — warm and full of light, with high-end finishes. On entering, you will be welcomed by a handsome entrance that leads to a large, bright living room. This open living space, featuring a modern, fully equipped kitchen, is perfect for entertaining guests or enjoying family time. Large picture windows open onto a sunny terrace where you can relax by the pool, surrounded by a carefully maintained garden. The villa has five bedrooms, including a beautiful master suite with a modern en-suite bathroom and a dressing room. Outside, you will be delighted by the pretty pool, perfect for cooling off on hot summer days or enjoying relaxing moments by the water. In addition, the villa has a pool house, ideal for outdoor meals and convivial moments around the pool. A large garage completes this home. Energy performance (DPE) and greenhouse gas (GES) assessments in progress. Fees payable by the seller. Independent Commercial Agent RSAC: 828362285 / RCP: 127100479 For more information or to arrange a viewing, contact Stéphane Laroche now. Find all our properties on IMMOBA.

John Taylor Bordeaux is proud to present you with this exceptional opportunity: an exceptional vineyard, nestled in an enchanting landscape where the vines stretch as far as the eye can see. This prestigious estate offers much more than just a residence with character. With its majestic chateau of 450 m² and numerous outbuildings, some of which have been converted into charming guest rooms, this property embodies French elegance and luxury. Spanning 26 hectares, the estate's vines are the beating heart of this exceptional winegrowing operation. With quality stock and viticultural equipment meeting the strictest biodynamic standards, this estate is ready to meet the challenges of modern oenology. With its biodynamic label, the estate is committed to respecting both the environment and tradition, producing wines of incomparable quality, imbued with the very essence of its terroir. In addition to wineries equipped with the latest technology, the estate also offers facilities that can be upgraded;This property also offers facilities that can be upgraded to accommodate hotel activities, offering visitors a total immersion in the art of wine and gastronomy. Nestled in a lush green setting, the property offers a peaceful setting and breathtaking views of the surrounding countryside and vineyards, inviting you to relax and contemplate. Whether you're a wine enthusiast looking for an exceptional wine-growing investment, or an entrepreneur looking to develop high-end tourism activities, this wine-growing chateau offers a unique opportunity to merge tradition and modernity in an idyllic setting. Contact us today to seize this unique opportunity to become the guardian of an exceptional winegrowing heritage, where a passion for wine meets the French art of living. (The sale of assets can only take place after an agreement on the transfer of stocks and payment of advances to the crops)

Exclusive : an exceptional country estate in the heart of the Médoc's world-renowned vineyards nestled among the prestigious Grands Crus Classés of the Médoc, this remarkable stone-built Chartreuse offers a rare opportunity to acquire an outstanding French estate in one of the world's most celebrated wine regions. Set within approximately 11 hectares (27 acres) of beautifully landscaped parkland, gardens and woodland, the property extends to almost 850 sq m (9,150 sq ft), including 575 sq m (6,190 sq ft) of elegant living accommodation, just moments from the charming villages of Saint-Laurent-Médoc and Saint-Julien-Beychevelle. Arrival at the estate is nothing short of spectacular. A magnificent 500-metre private driveway, lined with stately Italian cypress trees, leads to this distinguished residence, built in 1970 in the finest tradition of classical French architecture. Combining timeless elegance with generous proportions, the property offers an exceptional lifestyle in complete privacy. Arranged over two levels, the residence comprises 18 beautifully appointed rooms, including 11 spacious bedrooms, designed to combine refined living with absolute comfort. The impressive stone façades, expansive terraces and large picture windows flood the interiors with natural light while framing uninterrupted views across the surrounding estate. Guests may enter via elegant stone staircases on either the north or south side of the house, both leading to a grand central reception hall. From here, the home flows effortlessly into a magnificent formal dining room and an elegant south-facing drawing room, each featuring an authentic fireplace and opening onto panoramic terraces overlooking the park and rolling countryside. The principal floor offers eight bedrooms, four bathrooms, three guest cloakrooms, a fully equipped kitchen and a private study. On the inferior level, the property provides four additional bedrooms, two shower rooms, a utility room, technical facilities, an extensive wine cellar and approximately 275 sq m (2,960 sq ft) of garages and ancillary spaces, presenting exceptional potential for a classic car collection, wellness facilities, staff accommodation or further bespoke development. The grounds are equally impressive. The estate's mature parkland, woodland and landscaped gardens ensure complete tranquillity and privacy, while an automatic irrigation system supplied by both a private well and a borehole guarantees effortless maintenance throughout the seasons. For those seeking an even more substantial estate, several additional acquisition opportunities are available. Just 300 metres from the main residence, an attractive stone house of approximately 145 sq m (1,560 sq ft), together with 165 sq m (1,775 sq ft) of outbuildings, sits within its own one-hectare plot. Furthermore, an additional 60 hectares (148 acres) of adjoining woodland and pasture, complete with private hunting rights, may also be acquired, creating a truly exceptional country estate. Whether as a distinguished primary residence, an elegant family retreat, or an exclusive luxury hospitality venture, this remarkable property offers outstanding potential. Combining architectural elegance, remarkable privacy and significant heritage value, this is a rare opportunity to own an exceptional estate in the heart of one of France's most prestigious wine regions, just a short drive from the Atlantic coastline, the celebrated vineyards of the Médoc, the city of Bordeaux and its international airport. For more information and viewings, please contact Jerome Houssait-Young at 0033 (0)6 77 81 88 71. +33677818871

The CADRE D'ENVIES Agency of Pian-Médoc presents this remarkable house completely renovated in 2022, located within a particularly sought-after residential environment of Pian-Médoc. Set in a confidential, green, and low-traffic development, it offers a privileged living environment where calm, nature, and comfort come together daily.Once past the electric gate, the tone is set. Built on a landscaped plot of approximately 1,600 m2, fully enclosed, the house features carefully designed outdoor amenities: a motorized gate, a driveway and parking spaces in asphalt, a perfectly maintained garden equipped with an automatic irrigation system, a lawn mower robot, as well as interior and exterior alarm systems ensuring comfort and serenity. Covering approximately 180 m2 of living space and more than 240 m2 of built surface thanks to its quality annexes, this house immediately captivates with the coherence of its renovation, the quality of its fittings, and its excellent overall condition. Here, no work is necessary: every area has been designed to offer optimal living comfort.As soon as you enter, the generous volumes of the house reveal themselves through a vast reception area harmoniously distributing the various rooms on the ground floor. A true character element, the stunning stone staircase immediately catches the eye and gives the whole place a timeless elegance.The living room, bathed in light thanks to large aluminum bay windows, provides a comfortable and friendly reception area open onto the terrace and garden. The contemporary kitchen, fully furnished and equipped, integrates perfectly into this warm and functional ensemble.An elegant master suite completes this level with its comfortable bedroom, dressing room, and shower room equipped with a double shower and a toilet. The house also has a versatile room that can be kept as a playroom, converted into an additional bedroom, or an office according to needs. A large office with independent access is ideal for professional activities or telecommuting. A laundry room, a pantry, and numerous storage spaces complete the amenities on this level.Upstairs, the sleeping area consists of two comfortable bedrooms, one of which has a particularly appreciated dressing area for daily use. A shower room and an independent toilet complete this floor designed for the comfort of the whole family.Outside, the property reveals all its potential. A true invitation to relaxation, the outdoor living space revolves around a superb 8 x 4 meter saltwater swimming pool dressed in Bali-style tiles and equipped with a heat pump. An elegant closed pool house of approximately 18 m2 with a summer kitchen allows for hosting family and friends under the best conditions. A petanque court completes this ensemble designed to fully enjoy the beautiful days.The annexes are a real added advantage with an insulated garage of about 45 m2 offering numerous usage possibilities, whether for parking, workshop, or storage.Regarding amenities, the house provides modern and refined comfort, with ducted air conditioning throughout the property. The living space has two fireplaces with inserts in perfect working condition, adding true extra charm. The aluminum windows and electric roller shutters ensure comfort and durability, while the interior and exterior alarm systems guarantee security. The whole property benefits from quality materials and particularly meticulous finishes. Finally, the location will charm families looking for a practical and peaceful daily life. The nursery and elementary schools are within walking distance in a few minutes.

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

Magnificent single-storey house built by a renowned architect on a 950 sqm plot. The house stretches along 35 m and is reflected in the large pools along the facade. The first 25 m pool, is dedicated to swimming, while the second is home to Koi carps and aquatic plants. The 242 sqm house (302 sqm on the ground) includes : an entrance hall leading to two bedrooms each with an ensuite shower room, a stainless and black marble equipped and furnished kitchen, with a central island, a 85 sqm living/ dining room with mahogany louvered furniture and a Jatoba parquet floor, a 58 sqm master en-suite bedroom with dressing room and bathroom. All rooms open onto the garden through a glass wall consisting of a succession of double French doors. The terrace, made of ipe wood, extends into a deck leading to the pool. In the basement: a large cellar, a laundry room and a wine cellar. Two parking spaces on the plot and a sauna complete this exceptional property. Ce bien vous est présenté par l'agence BARNES Bordeaux - Visiter notre site internet www.barnes-bordeaux.com - Téléphone +33-0533093089

Dazzling 52 story tower located directly on 75m of beach in Sunny Isles Beach in Miami. Managed by The Ritz Carlton, a guarantee of impeccable service. Completely private residential building with no hotel on site. Spectacular design by Arquitectonica with stunning interiors by Michele Bönan. Impressive two-story lobby, enhanced by four glass floors overlooking the pool and beach. Spacious configuration offering ocean and city views. 3m high ceiling and 4.5m in the penthouses. Spacious terraces with private pools in some residences. Italian-style kitchen with Caesarstone quartz countertop and Gaggenau appliances. THG bathroom faucets. Smart home technology and high speed internet and WiFi. Ideally located between Aventura Mall, Bal Harbor Shops and Miami and Fort Lauderdale International Airport.

This property of over 5 hectares in a single block, formerly a wine-growing estate, enjoys beautiful views overlooking the Blayais countryside. The Arcachon-inspired house comprises 10 main rooms, including a large living room extended by a veranda with views of the Gironde estuary, 5 bedrooms and 4 shower rooms. The outbuildings include a guest house in need of renovation, wine cellars and a closed shed. The possibility of acquiring other plots would make it possible to reconstitute a high-quality 14-hectare vineyard in the Blaye Côtes de Bordeaux appellation. General information: Major work carried out in the 2000s (roofing, electricity, insulation, sanitation, etc.) Town gas heating Property tax: €4,230 Accessibility: Bordeaux city centre: 50 mins All shops: 5 mins Fees at seller's expense. Estimated annual energy costs for standard use: between €2,950 and €3,992 per year. Prices indexed to 1 January 2021. Information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr