The Décentrale property on Mont-Soleil, Switzerland is the home of no one and the part-time home of many. It is an open space used by many projects that are self-organised through the Synergiehub. The property is owned by the non-profit Permavillages association, administered by the Coopérative Décentrale and is itself self-organised through the Synergiehub.

Mont-Soleil is a small hamlet at the edge of the Franche Montagne high-plateau in the Jura mountains of Switzerland. It is part of the community of St-Imier. Mont-Soleil is known in Switzerland for its educational eco-tourism offerings as part of the Swiss Energy Park and . It is at the heart of the Chasseral Regional Park.

The Décentrale is situated a 2 minutes walk from the Funisolaire cable railway, offering a 4 minute ride to the small town of St-Imier, with its Espace Noir autonomous culture center, small commerce and the CFF Swiss railway station.

The Espace Noir is of special cultural importance for the region, since during the 19th century the anti-authoritarian or anarchist movement was particularly strong in this region. In 1872 the Fédération Jurassienne, which had strong support in Saint-Imier, organized a congress in Saint-Imier at which the Anti-authoritarian International Workingmen's Association or Anti-authoritarian International was founded.