Questione giuridica chiave
Whether the challenged decision sufficiently stated the factual grounds for review under Article 112 LTF.
Decisione estratta
The appellate decision lacked the decisive factual findings on the comparables used to establish market rents and had to be annulled.
Motivazione estratta
Neither the first-instance judgment nor the cantonal appeal judgment contained the concrete comparison data needed to verify compliance with Article 11 OBLF; an 'overall impression' was insufficient.