K & J

The Full Court of the Supreme Court of Western Australia considered an appeal by K & J (the appellants) against a decision of a single judge. The dispute concerned the interpretation and application of certain provisions within a commercial lease agreement, specifically relating to rent reviews and the calculation of the market rent. The appellants sought to challenge the market rent determined by the respondent landlord under the terms of the lease.

The central legal issues before the Full Court were: (1) whether the single judge had erred in their construction of the rent review clause in the lease; (2) whether the market rent determined by the landlord, and upheld by the single judge, was demonstrably incorrect or unreasonable based on the evidence; and (3) the proper approach to be taken by the court in reviewing a rent determination made by a landlord pursuant to a lease.

The Full Court analysed the language of the rent review clause, emphasising the importance of adhering to the plain meaning of the contractual terms. It considered the evidence presented regarding comparable market rents and the methodologies employed by the valuer. The Court affirmed that while a landlord's determination of market rent is subject to judicial review, the court's role is not to substitute its own valuation but to ensure the landlord has acted in accordance with the contractual provisions and has not made an assessment that is so unreasonable as to be incapable of being justified. The Court found no error in the single judge's approach to the construction of the clause or the assessment of the evidence.

The appeal was dismissed, and the orders of the single judge were affirmed.