The parties contracted on 2 May 2001 to carry out works in Perth. This comprised alterations to a building in order to produce a water-tight shell. The contract incorporated the conditions of the Scottish ºÚ¶´ÉçÇø Contract without Quantities, Contractor’s Design Portion (January 2000 revision), with amendments. The work began on 7 May 2001 and a certificate of non-completion was issued on 19 November 2001. The work was completed on 18 February 2002.

Clark referred interim certificate number 10 to adjudication in June 2003. A second referral was made by Clark in September 2003 in respect of a claim by Castle Inns relating to defects, damages and loss and expense in respect of the fitting out of the project.

Three issues arose before the court. First, should that part of the adjudicator’s decision relating to fee and disbursements be enforced? Second, could Castle reclaim the adjudicator’s fees on the principle of unjust enrichment? Finally, did the final certificate cover the same matters as the second adjudication and were the legal proceedings commenced after the time bar in the final certificate became effective?