Urbex in Grenoble has a unique backdrop: an urban basin ringed by three mountain ranges - Chartreuse, Vercors, Belledonne - where the ruins hide less in the city than in the valleys and the alpine foothills. Between the abandoned cement works of Chevalon clinging to the foot of the Chartreuse, the chateaux left to the vegetation near the Matheysine, and the forgotten holiday camps high in the mountains, Grenoble's urban exploration scene forces you to widen the radius. On our map, thousands of geolocated spots cover Isere and the whole Auvergne-Rhone-Alpes region.
For this article we picked 3 places that are genuinely abandoned and still standing in 2026, each verified one by one: an industrial cement works frozen since the late 1980s, the second-largest chateau in Isere left in ruins, and a mountain hotel turned holiday camp then abandoned in the Chartreuse. No demolished spots, no restored fort passed off as a wasteland. Under each entry, an "Add to my map" button saves the GPS coordinates to your personal account, for free and with no credit card.
The queries urbex Grenoble, Grenoble urbex map, abandoned places Grenoble, urbex spot Grenoble, urbex around Grenoble and urban exploration Isere all point to the same reality: an industrial, aristocratic and tourist heritage that history set aside - factory bankruptcies, neglectful owners, the end of the great mountain holiday camps - and that photographers, urbexers and historians are rediscovering today. This guide gives you each site's dated history, its legal status and its real dangers, before handing you its coordinates.
Free Grenoble urbex: why Urbex Maps changes the game
Before the spots, a word on what makes this guide different. Most sites that talk about free urbex in Grenoble put "free" in the title, then redirect you to a paid forum or a closed Telegram group. Here the promise is concrete: under each place, an "Add to my map" button sends the GPS coordinates to your personal account, with no subscription and no credit card.
Behind the map is a community of more than 40,000 explorers, active since 2021. Every coordinate is checked at least twice - by the contributor who submits it, then by a regional moderator who confirms the spot still exists and has not been walled up. The places offered in this article are part of that catalogue; the rest of the thousands of French spots are unlocked through packs that fund the moderation and field verification.
One reminder before you set off: urbex is not illegal in itself, but entering private property without permission is trespassing (article 226-4 of the French Penal Code, up to one year in prison and a 15,000 euro fine). We document these places for their history; we never encourage breaking in. Helmet, torch, ankle boots and caution on the floors: these alpine spots carry very real collapse and fall risks.
1. The Chevalon cement works - the industrial wasteland of Voreppe
About twelve kilometres north-west of Grenoble, in the Chevalon hamlet of Voreppe, stand the concrete ruins of the former Chevalon cement works. The factory processed cement stone quarried at the Sautaret locality and operated from 1873 to 1987 - first run by local families, then taken over by the Vicat group from 1970. Its underground quarry runs to nearly 40 kilometres of galleries. Since the works closed, the site has been left to decay: it is THE flagship industrial urbex spot of the Grenoble area.
The mass of concrete is so vast that demolition is deemed too expensive: the site keeps "passing through the summers and winters" without being torn down. In November 2024, Voreppe town hall was still weighing two options - a conversion (on the model of the Bastille or Dolomieu) or a return to nature - but no demolition has taken place and the place remains a wasteland. You'll find the terraced buildings, the old rotary kiln and the gallery entrance. Do not confuse it with the Vicat plant down in the Voreppe plain, which is still in operation: the Chevalon is the ruin.
The site is private property (the former cement works grounds): access is not authorised. Main risks: decayed concrete structures, unstable floors and walkways, and deep, pitch-black underground galleries where it is easy to get lost. A powerful head torch, a helmet and company are essential - and you never venture alone into the galleries. The entrance lies on the heights of the Chevalon hamlet, reachable by car from Voreppe.
The Chevalon cement works remains the most iconic urbex spot around Grenoble: the best entry point to understand the industrial past of the Isere valley.
2. Chateau de la Motte-les-Bains - Isere's second-largest chateau in ruins (La Motte-Saint-Martin)
About thirty kilometres south of Grenoble, near the Drac gorges and La Mure, the Chateau de la Motte-les-Bains overlooks the commune of La Motte-Saint-Martin. Of medieval origin (12th century), it was largely rebuilt in the late 16th century by the architect Pierre La Cuisse - the same man who worked on the Chateau de Vizille - then turned into a thermal spa establishment in the 19th century. It is today the second-largest chateau in Isere after Vizille, and far richer urbex than the city centre.
Abandoned for around fifteen years, the chateau is in full decline: mouldy ceilings, destroyed furniture, graffitied walls. It is so frequented that the mayor told the press of up to 50 to 60 visitors a day - families at the weekend, partygoers at night. An important point to know: a residents' collective, "Sauvons La Motte-les-Bains", launched a preservation petition still active in 2025-2026 (sources: France 3; ICI). The building is still standing, but its future remains uncertain.
Private property: the interior is not accessible without permission. The standard risks of a large, neglected old building: sagging floors, falling stone and plaster, weakened staircases. It is probably the most spectacular abandoned chateau in the Grenoble ring - one to see with respect, before any restoration closes it.
3. The abandoned holiday-camp hotel of Saint-Pierre-de-Chartreuse - the mountain giant
In the heart of the Chartreuse range, about twenty kilometres north of Grenoble, away from the village of Saint-Pierre-de-Chartreuse, hides a former luxury panoramic hotel. Converted into a holiday camp in the 1970s to host children, notably from the Paris region, it eventually closed. It has now been abandoned for around fourteen years and ranks among the most iconic urbex spots in the Chartreuse.
The building is in an advanced state of decay: crumbling walls overrun by ivy, repeated intrusions, and even the electrical wiring torn out and stolen. The local press has questioned the future of these large mountain complexes (see France Bleu Isere, "what to do with the old abandoned holiday centres in our mountains?"). No demolition has been reported over the 2023-2026 period: the place is still standing.
This is the former holiday camp of the Air France works council, at the lieu-dit Le Banchet, along the route du Col de Porte. Our coordinates point to the main building, cross-checked against three sources (the "Le Banchet" address, the OpenStreetMap footprint and the IGN cadastral parcel). It is private property: access is not authorised. Serious risks of a large abandoned building - rotten floors, unstable staircases, total absence of electricity. A torch, a helmet and absolute caution are a must.
FAQ - Urbex Grenoble
Is urbex legal in Grenoble?
Urban exploration is not illegal in itself, but entering private property without permission is trespassing (article 226-4 of the French Penal Code). Almost all the spots around Grenoble are private property: we document them for their history, without ever encouraging break-ins. For more, read our guide is urbex legal in France.
Where can I find other abandoned places around Grenoble?
Our map lists thousands of spots across all of Isere and the neighbouring departments. You can add the three places in this article to your personal map for free via the button under each entry, then unlock the rest through our regional packs. If you also explore the north of the region, take a look at our urbex in Lyon guide.
Do I need special gear to explore these spots?
For the underground galleries of the Chevalon cement works, a powerful head torch is essential, along with a helmet and ankle boots - and you never go in alone. For the chateaux and the holiday camp, watch out for rotten floors and falling stone. Our urbex gear guide covers the essentials to start safely.
Where exactly is the abandoned Chartreuse holiday camp?
It is the former holiday camp of the Air France works council (a one-time panoramic hotel), at the lieu-dit Le Banchet, along the route du Col de Porte in Saint-Pierre-de-Chartreuse. Our coordinates point to the main building, cross-checked against three consistent sources (the "Le Banchet" address, the OpenStreetMap building footprint and the IGN cadastral parcel). Note that it is private property: we document the site's history without encouraging trespassing.
Conclusion: Grenoble, a city to explore beyond its walls
From the concrete wasteland of Chevalon to the ruins of the Chateau de la Motte-les-Bains, by way of the forgotten holiday camps of the Chartreuse, Grenoble urbex tells a century and a half of alpine history: the golden age of cement, the splendour of the Dauphine's spa chateaux and the end of the great mountain holiday camps. These places are not stage sets: they are open-air history books, fragile, to be explored with respect and without damage. Add them to your map, and carry on your exploration with our top 10 abandoned places in Auvergne or the free urbex map.