
A developer who constructs necessary infrastructure—such as roads, water supply, and sewer systems—in an area zoned for residential development is entitled to reimbursement of the costs from all landowners who benefit from the development. The municipality must first issue a preliminary decision allocating the costs and then adopt a final reimbursement decision once the development has been completed. The total costs stated in the final decision may not exceed the costs set out in the preliminary decision by more than 15%.
The case before the Supreme Court
In this case, the State Administrator had set aside the municipality’s preliminary decision. The municipality subsequently approved increased costs that the developer had claimed in the meantime. The State Administrator upheld this new decision, which then formed the basis for the municipality’s final reimbursement decision. A landowner challenged the final decision in legal proceedings against the municipality, arguing that it could not lawfully be based on the State Administrator’s preliminary decision because that preliminary decision was invalid.
The landowner prevailed
The Supreme Court ruled in favour of the landowner. First, the Court held that the validity of the preliminary decision could be reviewed incidentally by the courts when assessing the validity of the final decision. It was not necessary for the appellate administrative authority that had issued the decision—in this case, the State—to be a party to the proceedings.
The Supreme Court further found that it had been incorrect to approve the increased costs. Only those errors that had justified setting aside the original decision could be corrected. The relevant statutory provisions are based on the premise that the costs are fixed in the first decision, which is intended to be issued before construction begins. This framework is designed to ensure predictability for the parties involved. Accordingly, the appeal brought by the Municipality of Trondheim was dismissed.
The judgment clarifies key provisions of the Planning and Building Act
The judgment provides important guidance on the interpretation of key provisions in Chapter 18 of the Norwegian Planning and Building Act. It also clarifies general principles of administrative law concerning the incidental judicial review of administrative decisions and the extent to which administrative authorities may rely on new information when making decisions.
Source: Supreme Court

Martin Edelsteen Woll
mwoll@melo.no
+47 414 87 832


