On online forums, you’ll often come across a simple answer: you don’t need a building permit for a mobile home. Unfortunately, this answer is too simplistic and could end up costing you dearly—from a work stoppage to an order to remove the structure.
The truth is more nuanced. Whether you need a permit does not depend on how the manufacturer labels its product, but on three specific factors: how you use the shed, whether it is permanently anchored to the ground, and what your municipality’s zoning regulations allow. In this article, we explain each of these factors individually, describe the process step by step, and list the questions you should ask your local municipality before you even order the shed.
If you plan to live in a mobile home—either permanently or seasonally—and it is set on a foundation and connected to water, electricity, and sewer services, Slovenian law treats it as a building. As a general rule, you need a building permit for a building. The good news is that for small residential structures, the process is significantly simpler and less expensive than for traditional construction.
If the cabin remains truly portable—it is not anchored to the ground, has no permanent connections, and is not used as a residence—it may be treated differently. This is a legal gray area, and interpretations vary from municipality to municipality; therefore, it is not wise to rely on this without written confirmation from the competent authority.
Key rule: It is not the size or name of the product that matters, but rather its intended use and whether it is attached to the land.
A structure intended for human habitation must meet significantly stricter requirements than an auxiliary structure. We’re talking about minimum technical standards for living spaces: clear height, natural light, ventilation, thermal insulation, fire safety, and access to restroom facilities. A garden shed is not required to meet these requirements—but a small house where you sleep must.
This is also why the same structure may require a permit in one case but not in another. The same unit used as a tool shed and as a bedroom does not constitute the same legal case.
A structure that stands on a concrete slab or pile foundations and is connected to municipal infrastructure is considered permanently installed under the law—regardless of whether it is theoretically possible to move it. Conversely, this does not apply to a unit on wheels with a registration number that can be driven away at any time and has no permanent connections.
Between these two extremes lies a broad gray area, and this is precisely where most misunderstandings between buyers and municipalities arise. If you’re planning to live there year-round, you’ll almost certainly fall into the first category.
Even if the cottage were legally uncontested, you can only build it where the municipal zoning plan (OPN) permits. Zoning is the exclusive jurisdiction of municipalities, which in practice means that the rules can vary significantly from one neighboring municipality to another.
The land must have the appropriate designated use—typically, land zoned for building. This is a requirement that cannot be circumvented by choosing a smaller or simpler house.
Slovenian law classifies structures into four groups based on the complexity of construction. The type of documentation you need depends on this classification.
Type of StructureWhat You NeedTypical ExampleSimple StructureNo buildingpermit required; compliance with the zoning ordinance is requiredSmall shed, canopy,fenceUncomplicated StructureAbbreviatedbuilding permit; simplified documentation is sufficientSmall residential structure,garageLess complex structureBuildingpermit and project documentation from a licensed designerTraditional single-familyhomeComplex structureBuildingpermit and comprehensive project documentationMulti-family and public structures
Smaller residential units are most often classified as low-complexity structures. This is advantageous for the investor: the process is shorter, the documentation is simpler, and the design costs are significantly lower than for a traditional house.
We often hear the claim that a building permit is not required for a structure up to 20 m². This information is not false, but it is often misapplied.
This limit applies to small auxiliary structures —sheds, wood sheds, storage sheds, and carports. These are structures that complement existing buildings and are not intended for residential use. When the same square meters become a space where someone lives, the structure is evaluated according to different criteria.
In other words: a small area alone does not exempt you from the obligation to obtain a permit for a residential structure. Anyone who tells you otherwise is not informing you correctly.
Regardless of size and design, there are plots of land where the installation of a residential unit is not permitted or is extremely difficult:
In principle, a change in land use designation is possible, but it is a lengthy process that is contingent upon amendments to the municipality’s land-use plans. It cannot be factored into the standard construction timeline.
Before you order anything, obtain location information for the specific parcel from your local municipality. This is an official document that states:
The cost is negligible compared to the value of the investment, and you can avoid the most costly mistake of all—buying a cabin for a plot of land where you won’t be allowed to build it.
This is a question that buyers often ask too late. A house number and permanent residence registration can only be obtained for a property that is permanently situated, legally constructed, and registered in the real estate cadastre.
A mobile unit cannot obtain a house number without a permit and without being registered in the cadastre. If your goal is to own a fully recognized property with an address, going through the permit application process is essential—there are no shortcuts.
To avoid having to visit city hall multiple times, prepare the following questions:
If a structure remains registered, movable, unsecured, and without permanent connections, it is generally not considered a building. As soon as you place it on a foundation and permanently connect it to the infrastructure, the assessment changes. Contact your local municipality to obtain a written explanation for your specific case.
For simple structures, the process is significantly shorter than for a conventional house, as simplified documentation is sufficient. The actual duration depends on the workload of the administrative unit and the completeness of the application.
Generally speaking, no. Agricultural land is not zoned for the construction of residential buildings. This is the most common reason why a plan falls through—so be sure to check the zoning designation before purchasing the land.
Only if the structure has been legally constructed, is registered in the real estate cadastre, and has a house number. This is not possible without completing the necessary procedures.
For a simple structure, simplified documentation prepared by a qualified professional is sufficient. When you order a cottage, we can assist you with the basic technical details about the structure that the designer will need.
Our cabins are designed to be classified as small residential structures, which simplifies the process. For each project, we prepare the technical specifications you’ll need to discuss with the municipality and your designer—dimensions, weight, foundation type, and connection requirements.
Read more about the design, amenities, and technical features on the “About the House” page; we’ve compiled additional questions in the FAQ section. If you’d like to see the house in person, book a tour —we’ll guide you through the entire setup process.
Warning: The content of this article is for informational purposes only and does not constitute legal advice. Zoning regulations vary by municipality and are subject to change over time. Before purchasing land or commissioning a building, obtain location-specific information and a written explanation from the relevant municipality, and consult with a licensed architect.
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