Building application

Building a tiny house in Norway normally requires a building permit, and the application process follows fixed steps according to the Planning and Building Act. This article provides an overview of how to proceed – from clarifying the zoning plan to submitting a completed application. We can also assist with the technical drawings and documentation required by the municipality, making the process both simpler and more transparent.

1. Clarify regulatory matters

  • Check the municipal plan and zoning plan for the property.

  • Check whether the plot is zoned for housing, holiday home or other use.

  • Clarify any limitations such as occupancy rate (BYA), height, location and aesthetic requirements.

2. Clarify the application requirement

  • Tiny House is considered a permanent residence building, and normally requires an application.

  • Small projects without permanent residence may in some cases be exempt, but housing is subject to application.

3. Involve responsible actors (if necessary)

  • For housing, a responsible applicant (often an architect or builder) is normally required.

  • In some cases, smaller projects can be applied for as a self-builder , if the municipality approves it.

4. Prepare necessary drawings and documents

  • Site plan (location on the plot, distances to borders/roads).

  • Floor plan, sections and facade drawings.

  • Description of materials, intended use and technical solutions.

  • Neighborhood notice with copy of drawings.

5. Send neighbor notification

  • All neighbors and residents must be notified in writing.

  • They will be given at least 2 weeks to comment.

  • Any remarks must be commented on in the application.

6. Send building application to the municipality

  • Submit a complete application via the municipality's portal or ByggSøk/Altinn solution (if available).

  • Attach all drawings, documentation and receipt for neighbor notification.

  • The municipality processes the application (normally 3–12 weeks depending on the scope of the measure).

7. Obtain permission and start-up

  • Once permission is granted, construction work can begin.

  • A separate commencement permit may be required if the application is processed in multiple stages.

8. Implementation and completion certificate

  • The building must be constructed in accordance with approved drawings and TEK17 (technical building regulations).

  • After completion, an application for a completion certificate is submitted to the municipality.

  • Before this, the house cannot be used as a residence.

Additional tips

  • Municipalities may have slightly different practices, so it is a good idea to have a preliminary discussion with the building department.

  • Separate rules apply to tiny house on wheels (can be considered a caravan or temporary measure, not a residence).

  • If the house is to be a year-round residence, it must meet requirements for insulation, energy, universal design, etc.