Indeed. Failure to consider falls under procedural impropriety.
Variously:
Under general principles of public law, authorities have a duty to act fairly and proportionately and are encouraged to exercise discretion sensibly and reasonably and with due regard to the public interest. Failure to act in accordance with the general principles of public law may lead to a claim for a decision to be judicially reviewed.
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The process of considering challenges, representations and defence of appeals is a legal process that requires officers dealing with these aspects to be trained in the relevant legislation and how to apply it. They should be well versed in the collection, interpretation and consideration of the evidence, writing clear but concise case-specific responses to challenges, enquiries and representations, presenting the authority’s case to adjudicators.
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The authority should give the owner clear and full reasons for its decision on a representation, in addition to the minimum required information.
Failure to explain such a decision may be seen as maladministration.
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Guidance for authorities but outside London but just as applicable here says:
Failure to consider representations properly may amount to a procedural impropriety and an adjudicator may subsequently allow an appeal on that ground if it is evident that the actual representations were not considered and addressed.