Defendant’s Mediation Refusals And Late Expert Change Of Position Insufficient To Displace The Usual Costs Order
In MJS Projects (March) Limited v RPS Consulting Services Limited [2026] EWHC 884 (TCC), Her Honour Judge Kelly sitting as a High Court Judge determined costs following dismissal of a professional negligence claim arising from container park design near Felixstowe Port. The Claimant accepted costs would ordinarily follow the event under CPR 44.2(2) but argued the Defendant’s repeated refusals to mediate, assessed against the Halsey v Milton Keynes General NHS Trust [2004] 1 WLR 3002 factors, justified departing from the default position and making no order as to costs. The Defendant resisted, contending its refusals were reasonable given the Claimant’s persistent failure to engage with workmanship allegations raised since 2019 and its refusal to disclose expert evidence even on a without prejudice basis. The court accepted the Defendant had declined multiple mediation proposals but held this could not be assessed in isolation. Applying Halsey, the judge found the Defendant had reasonably required some understanding of the Claimant’s expert case before committing to mediation, that other forms of ADR and commercial settlement discussions had been pursued throughout, and that mediation would not have had reasonable prospects of success given the parties’ entrenched positions and the Claimant’s own combative pre-trial stance. The Defendant’s application for indemnity costs in respect of the expert phase was refused, the judge holding that the high threshold in Excelsior Commercial and Industrial Holdings Ltd v Salisbury Hammer Aspden and Johnson [2002] EWCA Civ 879 was not met. Costs were ordered on the standard basis, with an interim payment of £309,673.80 plus interest at four percent, representing the approved budget less ten percent.