Restructuring & Insolvency analysis: The court set aside a liquidator’s rejection of a proof of debt and approved over 70% of the sums claimed, with costs recoverable under the lease to be assessed at a further hearing. The proof of debt related to a claim for breach of covenants not to alter, by a creditor (the Landlord) against a former tenant (the company in liquidation). In its decision, the court accepted that the Landlord was entitled to the cost of restoring the property to the condition that it was in when it was first let (expectation loss), rather than only the diminution in the value of the property consequent on the alterations (reliance loss). The court also found that it was entitled to award the Landlord the costs of proving for the debt under the lease, where rule 14.5(a) of the Insolvency (England and Wales) Rules 2016 (IR 2016), SI 2016/1024, would otherwise require the creditor to bear the costs of proving for its debt. Written by Rebecca Farrell, barrister at 3 Paper Buildings.