Developers who have bought properties online all have to deal with the rising costs of building materials. They're working on projects in Wednesbury in the West Midlands, Dunvant in Swansea and Norwich in Norfolk.

Houses in Stoke, Chestfield in Kent and West Drayton are bought at online auctions by developers who hope to make money on their investments. Two of the projects are destined for the rental market, while the third is about building new houses and selling them on.