Cobbe v Yeoman's Row Management Ltd [2008] UKHL 55 is a House of Lords case in English land law and relates to proprietary estoppel in the multi-property developer context. The court of final appeal awarded the project manager £150,000 on a quantum meruit basis for unjust enrichment because Yeoman's Row had received the benefit of his services without paying for that. The court refused to find or acknowledge a binding contract, prior arrangement with a third party or promise (such as would be necessary for proprietary estoppel or for a constructive trust), overturning a £2m award on the basis of a possible lien arising from a promise over the property. The court found a non-binding agreement in principle, entirely subject to the owner's final say to take into account for example their view