castle for sale Saint-Omer, France

At Eric LECHEVIN Immobilier.Discover a magnificent landscaped park of 1.5 hectares amidst centenary trees and an orchard. This sumptuous residence, dating back to 1781, is located just 35 minutes from Le Touquet Paris Plage. Completely renovated, the main building consists of six bedrooms, two lounges, two cellars, and an independent kitchen with a pantry.Outdoor pool Jacuzzi Independent gîtes.Information only available at the agency or by phone at + 33 (0)6 08 46 29 28 ERIC LECHEVIN IMMOBILIER -This description has been automatically translated from French.

Located 10 minutes from Lille downtown, in a peaceful and green setting in Loos, this remarkable château will appeal to lovers of historic residences and character properties. Offering generous volumes and strong renovation potential, this property combines architectural charm, heritage, and authenticity. From the moment you enter, the château reveals all the charm of period features through its wood paneling, original parquet floors, exposed beams, and impressive ceiling heights. The ground floor includes a vast and bright living room with generous proportions, an elegant reception dining room, and a kitchen. An old chapel, directly accessible from the living room, adds exceptional character to the property with its brick vaults and preserved historic architecture — a true testimony to the estate’s rich past. Upstairs, a landing leads to three bright bedrooms and two bathrooms, offering spacious accommodation and numerous layout possibilities. On the top floor, a large convertible attic completes the property. This space, which requires renovation work, could accommodate various projects depending on needs: additional bedrooms, an office area, or an independent suite. Outside, the tree-lined garden is ideal for fully enjoying the natural surroundings while remaining in immediate proximity to Lille. Steeped in history, the Château de Landas is believed to date back to the Middle Ages and is said to have hosted King Louis XIV during the Siege of Lille in 1667. It is also renowned for its spectacular relocation on rails in the 1960s to allow the construction of the A25 motorway — an emblematic episode in the preservation of regional heritage. A rare property combining history, charm, and significant renovation potential in the heart of the Lille metropolitan area.

This chateau, set in an idyllic setting, offers an orangery of 400 sqm, a park of 11 hectares, a caretaker's house and charming outbuildings. The chateau has 10 bedrooms, each with its own bathroom and toilet, 2 luxury suites, 1 reception room of 200 sqm with a 100 sqm glazed room overlooking the park. About 900 sqm of living space. The basement includes the technical room, cloakroom, toilets and storage room. The caretaker's house is functional with a kitchen, a dining room, a living room with fireplace, 3 bedrooms and 1 bathroom. Wooded park with parking and pheasantry. 2h from Paris, 1h from Lille, 30mns from Arras. Selling price : 3 150 000 euros Fees at seller's expense Energy class : N/A Climate class : N/A Information on the risks to which this property is exposed is available on the Géorisques website: georisques.gouv.fr

ELEGANT 19TH-CENTURY CHATEAU WITH PRESERVED CHARACTER, 700 M² OF LIVING SPACE – 8,751 M² OF PARK   For lovers of history, beautiful stonework, and authenticity, this exceptional property will charm you with its generous proportions and preserved character. Built in the early 19th century, this château offers approximately 700 m² of living space on a wooded and enclosed park of 8,751 m², with the possibility of acquiring additional land and buildings according to your project. The ground floor is organized around a beautiful, bright entrance hall, leading to several living spaces: two living rooms, two dining rooms, two kitchens, an office, boiler rooms, and a separate toilet. Ideal for a reception or intergenerational living project, this level already offers great flexibility. stairs, the landing leads to ten bedrooms, including seven master suites with private bathrooms, as well as an additional bathroom. This space could comfortably accommodate a large family or allow for a bed and breakfast or charming gîte business. A fully convertible attic of over 300 m² offers exceptional potential for creating new living spaces, a wellness area, reception rooms, or additional accommodation. The château rests on old vaulted cellars, perfect for storage or a wine cellar. Charm, authenticity, and spaciousness are the hallmarks of this residence, offering a wide range of possibilities, located in a peaceful, green setting in the heart of a village steeped in history. Renovation required. Les informations sur les risques auxquels ce bien est exposé sont disponibles sur le site Géorisques https://www.georisques.gouv.fr Including fees of 5.17% TTC to be paid by of the purchaser. Price excluding fees 870 000 €. Energy class E, Climate class B. Information on the risks to which this property is exposed is available on the Geohazards website: georisques.gouv.fr.

Early 18th century castle on 11ha park Near Arras, this castle built in 1702, magnificently renovated in 2017 (900 m²) is nestled in the heart of an 11-hectare estate. This property is a true rare pearl that combines classic elegance and modernity. This castle offers two luxurious suites and thirteen bedrooms, each with its own bathroom and toilet, guaranteeing privacy and comfort to its residents. Professional kitchen, 200 m² reception room, bathed in light thanks to its glass roof which offers a breathtaking view of the surrounding park. The basement is well furnished with a technical room, changing rooms, additional toilets and storage space, guaranteeing the functionality of this residence. Charming caretaker's house comprising: 3 bedrooms, kitchen, living room, outbuildings. A 400 m² orangery offers a multi-purpose space, while the 11 hectares park allows you to enjoy the tranquility of nature and generous parking space.

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

19th-century château de la Fontaine accompanied by its elegant outbuildings, nestled in the heart of a landscaped park of 1.8 hectares, fully wooded and meticulously maintained. The property offers an exceptional setting with a pond, an outdoor heated infinity pool, a remarkable French garden, as well as a large hangar that can accommodate a helicopter or several collector vehicles.Built on a beautiful floor, this charming château has recently undergone a high-quality renovation, combining the charm of the old with contemporary comfort. The reception areas are particularly refined: a spacious living room adorned with magnificent woodwork and a wood-burning fireplace, an elegant dining room under a glass roof directly opening onto a terrace overlooking the pool and gardens.The independent kitchen, designed by Bulthaup, has been custom-made, providing the ideal space for hosting numerous guests.The upper floors comprise an elegantly furnished office, a laundry room, a magnificent master suite secured as a panic room with a dressing area and en-suite bathroom, as well as three other bedrooms, each decorated in a distinct style. Two additional bathrooms and a shower room complete the whole. The period elements — flooring, moldings, stained glass, and architectural details — highlight the authenticity and unique character of this prestigious residence.The ground floor reveals a spectacular reception area entirely dedicated to private parties, including a bar, a cigar lounge, and a fully equipped nightclub space with a mixing table.The property also features renovated outbuildings of approximately 60 m², consisting of two bedrooms and a bathroom. At the back of the plot, a large hangar can shelter several vehicles; part of it has been converted into a gym.Located in a calm and green environment, in immediate proximity to the Golf de Mérignies, with quick access to the A1 highway and Lesquin Airport, this exceptional property will appeal to lovers of luxury, tranquility, and refinement in the countryside.This description has been automatically translated from French.

This splendid small chateau from the 19th century and its converted outbuildings are set in the heart of a fully landscaped park of 1.6 hectares, featuring a pond, an overflowing outdoor heated swimming pool, and a French garden. It has undergone a complete and recent renovation. It boasts very beautiful reception rooms: a living room adorned with lovely woodwork, a wood-burning fireplace, and a spacious dining room under a glass roof with direct access to the terrace overlooking the pool and garden. The separate kitchen is fully equipped to a high standard and has been custom-made by a reputed company, ideal for hosting many guests. On the upper floors, there is an elegantly arranged study, a master suite with a dressing room and en-suite bathroom, and 3 other bedrooms with different styles, a bathroom, and a shower room. Many decorative elements showcase the origins of this beautiful residence (parquets, moldings, stained glass...), giving it a very special charm. This magnificent private mansion also has outbuildings of about 60 m² housing 2 bedrooms and a bathroom, which have also been fully renovated. The barn, located at the bottom of the property, can accommodate 6 cars. Part of this barn has been converted into a gym. The location of this ultra high-end exceptional property is ideal: quiet, in the countryside, very close to the Mérignies Golf Course, with quick access to the A1 motorway and Lille-Lesquin airport. A true paradise for lovers of luxury in the countryside.This description has been automatically translated from French.

Exclusively with Espaces Atypiques Picardie. Located 1 hour 40 minutes from Paris Charles de Gaulle and 1 hour 15 minutes from Lille, this magnificent 19th-century event castle is located in the heart of the Hauts-de-France region in the Somme region. Built in white chalk stone in the Directoire/Second Empire style, the castle was built between 1840 and 1846 for Mr. Lallart de Lebucquière. All the sculptures are by Aimé and Louis Duthoit. Sold in 1947 to the Houilleries Nationales du Nord et du Pas de Calais for its social work 'holiday camps,' it then became the property of the Valenciennes family allowance fund, always with the goal of holiday camps. Restored and then transformed into an event venue, this castle is an ideal place to bring together and host beautiful professional and private events or to create a beautiful luxury hotel and restaurant. Ideally located between Arras and Amiens, this beautiful estate offers an exceptional and discreet setting on 6 hectares with its pond and a rare opportunity in the region. At the castle, 1250m2. the lobby. the bar with a cozy atmosphere. 3 beautiful dining rooms with careful decoration. the office and reserves. 4 large suites, 1 double suite and 2 bedrooms, each with private bathroom/shower room. a relaxation area in the basement with heated infinity pool 17m X 6m, jacuzzi, sauna, massage room and bar. the owners' private apartment completes the castle. In the outbuildings, 500m2. a large reception room 250m2 to host weddings with a beautiful interior courtyard for the cocktail and a catering office. 2 seminar rooms 50 and 70m2 with common space for breaks. an independent family cottage to accommodate 14 people. Restored with 4 bedrooms, 2 bathrooms and a fitted kitchen. Added to the outbuildings are 2 very large floors to be converted into bedrooms/dormitories to greatly increase the capacity of the estate's rooms, for weddings or residential seminars. A large customer car park with independent access. Various buildings are spread across the estate to complete the ensemble. Easy and quick access from Lille 1h15 - Paris Charles De Gaules 1h40 - Amiens 30min - Doullens 5min - Abbeville and Arras 40min. * Sale of the walls (No commercial exploitation or personnel is to be taken over) ENERGY CLASS: IN PROGRESS / CLIMATE CLASS: IN PROGRESS Estimated average amount of annual energy expenditure for standard use, established from energy prices indexed over the years - IN PROGRESS: between -EUR and - EUR (IN PROGRESS) Regulatory information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr Contact : Jérôme JOLY - 06 75 72 77 38 - 813 023 256 R.S.A.C AMIENS

Dive into the elegance and charm of an exceptional residence, ideally located between Mers-les-Bains and Saint-Valéry-sur-Somme, in the heart of a sumptuous wooded park of nearly one hectare.A spacious and refined living spaceWith its 330 m² of living space, this castle in perfect condition welcomes you through an authentic entrance hall, adorned with a majestic main staircase.To the right: a unique extension opportunity of 100 m², ideal for creating a contemporary kitchen, a bright living room, or an independent dwelling according to your needs.To the left: a brand new and fully equipped kitchen, a laundry room, an office, an elegant dining room enhanced by a period fireplace, a billiard room, and a service entrance with a second staircase.An ideal layout for the whole familyUpstairs, this residence offers:In the left wing: three spacious bedrooms, a bathroom, and a small living room for your relaxation moments.In the main part: a large landing distributes a master suite with an en-suite bathroom, two other bedrooms (including one with a sink), and a modern shower room.Remarkable potentialThe 55 m² attic, fully convertible, offers a great opportunity to realize your projects.Moreover, the recently redone roof guarantees comfort and serenity.A privileged setting and unique outbuildingsThe charm of this property extends to its exteriors:An authentic cellar, a traditional bread oven, and six garages for your vehicles or additional projects.This exceptional castle is offered to you by the Agence Demeures Côte d'Albâtre. Selling price including fees: €799,000, Fees: 5% VAT (buyer’s charge), Price excluding fees: €761,000. Energy class: F Energy climate class: F - Estimated energy expenses: between €11,740 and €15,970/year (indexed as of January 1, 2021).To visit this magnificent property, do not hesitate to contact the Agence Demeures Côte d'Albâtre at 06 13 72 47 80.Real estate agency specialized in character properties and sea views. Agence Demeures Côte d’Albâtre, (without holding funds), Holder of the CPI card No. 76062018000033752; Unique identification number 804846925 issued by the CCI Rouen Métropole.This description has been automatically translated from French.

ENCHANTING 18TH-CENTURY CHATEAU IN PERFECT CONDITION IN A REGIONAL NATURAL PARK 1H40 FROM PARIS - Museum-quality 18th-century interior decoration - 18 hectares - Monumental greenhouses 100 meters long - Private 5-hectare lake - Riverbank - Abbeville, Somme. Overlooking the splendid natural site of the Somme Valley, this 18th-century masterpiece with its highly refined symmetrical brick-and-stone architecture, inspired by a landmark 18th-century architectural treatise, rises atop a series of monumental south-facing terraces sheltering some of the largest private greenhouses in France, stretching 100 meters in length. The 18-hectare classical and romantic landscaped park is bordered for 1 km by the river and includes a 5-hectare lake dotted with small peninsulas. The chateau, flooded with light throughout the day thanks to its East-West orientation, features sumptuous sequences of salons and bedrooms adorned with painted and gilded rococo woodwork housing original paintings by Jean-Baptiste Huet, creating an enchanting décor enhanced by the magnificent south-facing views over the valley from the salons. The architecture of the chateau, of remarkable virtuosity, presents a classical symmetry reminiscent of the architecture of the Hôtel de Biron, now the Musée Rodin in Paris, completed in 1737. The architect Charles-Étienne Briseux began the chateau in 1733 and published the plans in his work “L'Art de bâtir les maisons de campagne” in 1743. Pierre de Buissy, son of the original patron, completed the interior decoration around 1763. His portrait by Joseph-Siffred Duplessis is held in the Ottawa Museum and is currently featured in a major exhibition in Carpentras under the direction of the Louvre. It is said that the splendor of the chateau originated from a youthful romance he allegedly had at Versailles with Adélaïde de France, daughter of Louis XV, and that he wished to receive her at his chateau in order to marry her.   Inside, after ascending the grand central staircase, the ground floor, flooded with light all day long and lavishly appointed, is arranged around an oval stone hall decorated with antique-style pilasters and a black-and-white cabochon floor. It opens onto an exceptional dining room with 18th-century painted wood paneling decorated with vegetal motifs and adorned with two oil-on-canvas paintings on the theme of Love by Jean-Baptiste Huet (1745–1811), whose works are displayed in the world's greatest museums, including the Louvre, the MET in New York, and the V&A in London. The ground floor continues with the gilded salon featuring white-and-gold woodwork with dual exposure, decorated with a beautiful marble fireplace, followed by the spectacular Zodiac Salon, flooded with light from triple East, South and West exposures and offering sumptuous views over the valley. It is decorated with 12 zodiac sign paintings, a marble fireplace, large double interior doors, and Versailles parquet flooring. A magnificent staircase with faux-marble painted walls and a wrought-iron banister leads to the upper floors. A sumptuous oval bedroom decorated with floral painted woodwork and paintings by Jean-Baptiste Huet, with a marble fireplace. A library with superb decorative features. A small hall, WCs, and a winter garden provide access to the outbuilding wing. On the first floor, four bedrooms with bathrooms, some decorated with white-and-gold woodwork, two salons with wood paneling including a particularly beautiful rotunda salon, a small dining room, a kitchen, and an office with a dumbwaiter. On the second floor, five bedrooms, two bathrooms, a workshop/laundry room, and a large room ready for conversion. A large cellar.   In the outbuildings with their superb symmetrical 18th-century architecture: a magnificent and large chateau kitchen with rustic décor of beams and joists, terracotta tile flooring, stone sink, marble worktop, ceramic tiles, and monumental fireplace. A workshop. An independent studio: kitchen, bedroom, bathroom. A large ground-floor “museum” room in the former orangery. Two large car garages. A caretaker's house. A large barn, former stable, former cowsheds, and a dovecote. A large independent house in good condition, with two garages.   Enclosed parkland of 189,081 m² with numerous stabilized pathways. A lake of more than 5 hectares. 1 km of riverbank along the Somme River, recently restored and in excellent condition. Superbly maintained gardens with a wide variety of flowers and roses. Three south-facing masonry terraces overlooking the Somme River. Monumental and rare 19th-century greenhouses, leaning against the terrace, in perfect condition and recently restored, sheltering lush vegetation.   Three entrances: a monumental 18th-century wrought-iron gate facing the chateau; a gate leading to the outbuilding courtyard; and a gate at the far end of the park. Historic Monument protection: The chateau, the park, and the avenue leading to the entrance: listed by decree dated 28 January 1944. The facades and roofs of the outbuildings; the dovecote and the two greenhouses in their entirety (cad. AK 77, 70, 79): listed by decree dated 1 December 2003. Connected to mains drainage. Property tax: 4,500 euros per year. Heating: heat pump with forced air system and electric radiators/convectors on the 2nd floor. Location: -162 km from Paris, 1h40 via motorway. -163 km from CDG and Le Bourget airports, 1h30. -10 km from the motorway. -40 km from the sea and beaches (Le Crotoy, Cayeux-sur-Mer). -6 km from supermarkets. -18 km from all shops and services in Abbeville. Paris in 1h30 by train. -38 km from all shops and services in Amiens. Paris in 1h by train. Price: 7,900,000 euros agency fees included, payable by the seller. Fees to be paid by the seller. Not subject to DPE. Information on the risks to which this property is exposed is available on the Geohazards website: georisques.gouv.fr.

Close to the Bay of Somme, a 17th-century castle, listed as a historic monument, extended by a park with outbuildings, woods, and an orchard. Far from all prying eyes and slightly elevated, the castle with its classical architecture, situated at the edge of a forest, overlooks a landscape of fields and rabbit warrens, beyond the roofs of the hamlet. All around, a country garden consisting of expanses of lawn and ornamental trees forms a green setting. A fully restored pigeon house from the 15th century stands on the main lawn with its polygonal silhouette. Several outbuildings add to the estate: adjacent service buildings extend from the house, and at the far end of the park, down below, there is an old farm, now transformed into a distillery, as well as a caretaker's house that allows for separate occupation. The park, about 3 hectares, surrounds the buildings. It includes vast lawns followed by an orchard, primarily planted with apple trees, and a wooded area.This description has been automatically translated from French.

In the Baie de Somme, 2 hours from Paris, a 18th-century chateau, 460 m², and its park of 9 hectares. The chateau was built in 1790 for Pierre Fanneau de la Horie, lord of La Touche, an engineer of the King responsible for the development of the ports on the Picardy coast and the Baie de Somme. He acquired the Lordship of Lanchères in 1774, the pre-existing building having been completely destroyed. The architect of the typical neoclassical residence is Antoine-Charles Aubert, who is also responsible for the Place du Palais Bourbon in Paris, as well as various buildings and private hotels that have since disappeared, including a folly in Lanchères, which was located on the hill of Chaillot. The canals and the park were designed and planted at the same time. A gate opens onto a large circular grassy parterre, planted with trimmed yews. A pathway, also circular, allows parking of vehicles in front of the chateau. Two pavilions, used respectively as a garage and a shed, are located at each end of the courtyard. A little away, a chapel and a dovecote seem to guard the property while, to the west, there is a walled orchard with old greenhouses, an orangery used as craft workshops, and a swimming pond. An old farm located to the east adjoins the plant maze. The estate includes a park planted with 9 hectares, featuring a French ornamental garden (Mérimée base), orchard, pastures, woods, and canals connecting to the marshes of Lanchères and Cayeux-sur-Mer.This description has been automatically translated from French.

19th-century château fully renovated - PRM Residence - Bay of SommeJust 5 minutes from the sea, in the heart of the Bay of Somme, this superb character property is set on a closed plot of 4,239 m².This 19th-century château, entirely rehabilitated by building professionals, offers approximately 735 m² of living space over 3 levels. The entire property has benefited from a complete and qualitative renovation, combining the charm of the old with modern technical amenities. The property has never been inhabited since the renovations were completed.Composition of the châteauGround floor:- Entrance hall- Two large reception rooms (refectory, show or activity room)- Offices- Meeting room- Independent apartment- Professional kitchen- Laundry and storage- Restrooms H/F/PRM1st floor:- 11 bedrooms with en-suite shower room and toilet2nd floor:- 3 T2 and T3 type apartments- Annexes- 4 individual houses converted into T1 and T2Technical amenities and renovation:- Complete renovation of the entire property- Electricity fully new and compliant with recent standards- Thermal insulation fully redone- Excellent energy classification (DPE particularly efficient for this type of building)- Heating and hot water production provided by heat pumps- Recent joinery and equipment- Residence compliant with PRM standards (accessibility for people with reduced mobility)- Video surveillance system installed in the communal and outside areasExploitation potential:The current layout allows for immediate public reception and lends itself to many projects:- Hotel or hotel residence- Vacation home / group gîte- Senior residence- Training center or school- Health or wellness center- Event, seminars, retreatsA large usable cellar also offers significant renovation potential: SPA, wellness area, gym, massage room, storage or leisure spaces. Some exterior masonry finishes are still to be completed (which can be done by the seller).Geographical situation:- 5 km from the nearest beach- 15 km from Saint-Valery-sur-Somme- 10 km from Tréport, Eu, and Mers-les-BainsQuick access by highway and proximity to several train stations.Commercial Agent E.I.: Laurent DEEST RSAC No. 320 951 221Estimated amount of annual energy expenses for standard use: between €3,450 and €4,730 per year. Average energy prices indexed as of 01/01/2021 (including subscription).Please note that following article L.561-5 of the monetary and financial code, a copy of the identity document of all visitors will be requested before the visit.Fees: 5% VAT included, payable by the purchaser. Price excluding agency fees: €1,400,000This description has been automatically translated from French.

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

Exclusivity – Napoléon III Castle near Amiens Set in a 2.6-hectare park with a swimming pool, this Napoléon III-style castle, built in 1877, offers 545 m² of living space, on full basement with cave. Ground floor: Entrance hall with original cement tiles Living room with parquet in a Rosace pattern and fireplace Reception room with herringbone parquet flooring Office, library, kitchen, and pantry First floor: Gallery distributing 6 spacious bedrooms Bathroom (possibility to create private en-suite bathrooms for each room) Second floor: 3 additional bedrooms 40 m² reception room Bathroom and shower Exterior: Enclosed orchard and vegetable garden Outbuildings to renovate: double garage, barn with attic, kennel, and chicken coop 150 km from Paris, 20 km from Amiens, 50 km from the Baie de Somme. A unique property combining history and modern living.

For sale 1842 chateau respecting 18th century style, located 2 hours from Paris. It offers approx. 435m² on 2 floors with convertible attic space and full basement. The interior decorated as if the chateau had been built in the 18th century. Ground floor: central entrance hall of 41m² leading to the stairs, double living room of 63m² with parquet floor and fireplaces, 32m² dining room with parquet floor, small study, study and wood panelling and fireplace, kitchen and laundry room. First floor: central corridor of 25m² leading to 7 bedrooms from 16 to 28m², with parquet floors, some with alcove or fireplace. Convertible attic and large basement used as a cellar and boiler room. Outbuildings around the courtyard: -          Farmhouse of 275m² used as hunting room, stables and cellars -          Half-timbered carriages barn of approx. 160m² and 55m² canopy. -          Caretakers house of approx. 60m² by the gates. -          Wooded park of 5.25ha (possibility to add pastures).

NEAR VALENCIENNES Located in the heart of French Hainaut, just a few kilometers from Valenciennes and less than 50 minutes from Lille, this remarkable château displays all its charms within a landscaped park of approximately 6,500 m², offering a natural and unspoiled setting. Built at the end of the 17th century by a local noble family—whose wife was the guardian of the future King Louis XV—this estate steeped in history combines heritage charm and architectural authenticity. Built of brick and stone, the château is centered around an elegant central rotunda adorned with columns and consists of three main buildings from different periods: the first dating from the late 17th to early 18th century, the other two built in the 18th and 19th centuries. The property underwent a major restoration campaign starting in 2008 by its current owners, who were keen to preserve and enhance this unique place. Now bursting with new energy, the château is home to a family space, numerous cultural events, and a long-standing bed and breakfast business. With approximately 400 m² of living space, the residence has beautiful, light-filled spaces divided into twelve main rooms, including five bedrooms and three bathrooms, all in excellent condition. A wing of approximately 300 m² remains to be renovated, offering potential for additional space. A true testament to the region's rich heritage, this characterful property will appeal to lovers of beautiful historic homes looking for a rare, authentic, and inspiring place. For more information or to visit this property, please contact Antoine Bracq: +33 (0)6 71 51 97 37 Energy class: E Climate class: D Estimated annual energy costs for standard use: between €7,460 and €10,150 per year. Average energy prices indexed for 2021, 2022, and 2023. Information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr