Yes, Tiny homes are legal in Switzerland but face strict zoning and building code constraints. Municipalities regulate placement, size, and habitability, while cantonal laws may impose additional technical standards. Recent 2026 revisions to the Ordinance on the Technical Requirements for Buildings tighten energy efficiency and mobility requirements for movable tiny homes.
Key Regulations for Tiny Homes in Switzerland
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Zoning Compliance: Cantonal and municipal land-use plans (e.g., Zonenplan under the Raumplanungsgesetz) restrict tiny homes to specific zones, often excluding residential areas unless classified as “secondary dwellings” or “temporary housing.” Approval requires proof of permanent occupancy or seasonal use.
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Building Standards: Tiny homes must meet SIA 380/1 energy efficiency norms and SIA 380/4 ventilation requirements. Structural integrity must comply with SIA 260 standards, even for mobile units, unless exempted under Mobile Home Ordinance (e.g., for recreational vehicles).
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Habitability & Permits: Permanent tiny homes require Bewilligung (building permits) from local authorities, including proof of wastewater disposal, insulation, and fire safety (e.g., Brandschutzvorschriften). Off-grid systems may trigger additional environmental assessments under Umweltschutzgesetz.