Abstract
This study aims at the usage and the change of the residential leasehold in the UK. The Building Lease came into the latter half of 19th century. Under the Building Lease the leaseholder expenses the building cost, but the leaseholder should leave the house without any compensation at the end of the leasehold term. The UK government made The Leasehold Reform Act 1967. The law had influenced the whole leasehold system. The management body in Letchworth has managed the Garden City based on the leasehold system and has kept the sight and the living environment in good condition. Most of the tenure has been changed leasehold to freehold,but leasehold system is still basically used to control living environment by Letchworth Garden City Heritage Foundation.
