Developers tackle three ambitious projects with auction properties needing a lot of work to get them up to scratch. Martel Maxwell visits a house in Guildford, Martin Roberts falls in love with a GradeII-listed house in Torquay in Devon, and Dion Dublin is in Barry in Wales assessing all the work needed on a mid-terrace house. But will the developers' plans run smoothly and will any of them turn a profit.