Question juridique clé
Whether refusal of access to the cost estimate and project plans violated the right to be heard.
Solution extraite
Yes. The owner was entitled to inspect the cost estimate and project plans because they formed the basis for deciding contributory liability.
Motifs extraits
The file-access right covers all procedural records capable of forming the basis of the decision; relevance is for the party to assess. Denial of access during the municipal and cantonal proceedings was not cured on appeal.