An AI-driven building permit advisor for the Municipality of Trelleborg

Anyone who has ever wanted to renovate their home, put up a guest house, or perhaps install a pool knows how difficult it can be to understand which rules apply. It is not always clear what requires a building permit, what only needs to be reported, and which local regulations must be taken into account.

Challenge

Trelleborg Municipality wanted to make the building permit process easier for residents while also reducing the strain on its building department. Applying for a permit often means navigating national regulations from Boverket alongside local municipal rules, which can be difficult to interpret. This often leads to uncertainty, incomplete applications, repeated requests for clarification, and a high volume of routine questions by phone and email.

Solution

Together with Trelleborg Municipality, Twofour developed Tryggve, an AI-driven digital advisor for building permits. Tryggve is trained on Boverket’s regulations and adapted with Trelleborg’s own local requirements, making it tailored to the municipality’s specific needs. Residents can ask questions in any language, while all answers are provided in Swedish to ensure clarity and legally accurate communication.

Results

The result has been a smoother experience for both residents and the municipality. By helping applicants better understand what is required before they submit, Tryggve has reduced unnecessary questions, improved the quality of applications, and shortened processing times. That means fewer repetitive inquiries for the building department and more time for qualified case handling.

It’s not just about making information available. It’s about making it understandable, context-specific, and actionable. Tryggve has lead to:

Fewer incoming questions via phone and email
Shorter processing times
Higher quality building permit applications
Better-prepared applicants

With Tryggve, the Municipality of Trelleborg has taken a concrete step toward a more accessible, efficient, and digitally mature urban development process.

Curious about the solution?

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