Here a builder agreed to construct two houses and a stable on the Ds land for £565. However, he abandoned the project after completing £333 worth of the work, so the D had to complete the building himself, and did so using materials left behind by the builder. The builder claimed for work done (the £333s worth) and materials supplied (the materials he left behind). The claim for the work failed. The D was not choosing to accept part-performance and finish the job himself; he had no real alternative but to complete the building, which would otherwise be just a useless mess on his land. However, he did not have to use the materials left behind, and so the builder was allowed to claim for these.