Key legal question
Whether Article 8 RPQ required physically contiguous buildings in the evolution perimeter a2
Extracted holding
No; the cantonal court could reasonably read Article 8 RPQ as aimed at preventing isolated single-family houses, not as imposing physical contiguity for collective housing.
Extracted reasoning
The Federal Court found the cantonal interpretation not arbitrary, since a strict contiguity rule for multi-storey collective buildings would be hard to justify and would be contrary to the purpose of the provision.