What can you build without planning permission in 2026?

Sweden's planning-permission rules changed on 1 December 2025. This English overview explains the main limits and the checks that still matter in the Gothenburg area.

Key figures: up to 30 m² per complementary building within a detailed development plan, up to 50 m² outside one, with total exempt-building allowances of 45 m² and 65 m² respectively. A complementary dwelling (a small self-contained home) may also be up to 30 m² within a plan and 50 m² outside one.

The rules are conditions, not an automatic approval

Existing exempt buildings on the property count towards the total allowance. Size, ridge height, placement, cultural heritage protection, shore protection, easements and utility corridors can all change what is possible. The municipality makes the final assessment for the individual property.

Distance to the boundary

Many permit-exempt measures placed closer than 4.5 metres to a boundary require written consent from every registered owner of the neighbouring property. Consent generally cannot replace permission towards a street, road or public space.

A notification may still be required

Even when planning permission is not required, a municipal notification and construction-start approval may still be needed when the work affects the load-bearing structure, fire safety, water and drainage, ventilation or a fireplace. Do not begin work until any required start approval has been issued.

Before you build

Check what has already been built and how much of the allowance remains.
Check cultural-heritage status, shore protection, easements and underground utilities.
Measure every relevant boundary correctly and obtain written consent where allowed and required.
Confirm whether structural, fire, plumbing or ventilation work triggers a notification.
Keep drawings, decisions and written consents for the life of the building.

Start with the property, not a generic answer

The building-rights review costs 1,995 SEK and gives you a written assessment of the planning route, available allowance, boundaries and practical next step. It is a private review, not a municipal decision. The amount is deducted if you continue with a larger assignment.

How to order: 1. Send the address in the form. 2. We confirm and send the payment details. 3. You receive the written assessment within five working days.

Neighbour-consent guide Order a building-rights review

This is general information updated in August 2026, not a binding decision for a particular property. See the official Boverket guidance or contact the municipal building committee for a formal assessment.