A part of the building that includes the ground it was built on and the structure of the building. Most houses are freehold meaning the current occupier owns it all. There are however a large number of leasehold houses as well. In the case of apartment blocks, the block and the ground are the freehold while the owners of each apartment are leaseholders. Sometimes these leaseholders buy the freehold. If this occurs the apartments of the people who bought the freehold are known as Share of Freehold rather than Leasehold.