One of the two primary statutes that govern leasehold reform is that of the Leasehold Reform Act 1967 which gave leaseholders of houses the chance to buy their freeholds, and extend their leases, a process known as enfranchisement. Then came legislation that was the platform for leaseholder rights according to the terms of their leases, especially those of service charges. which was the Landlord and Tenant Act 1985.
The Landlord and Tenant Act 1987 built on this platform and the second primary statutes governing leasehold reform came with the Leasehold Reform, Housing and Urban Development Act 1993, which finally gave leaseholders of flats the right to group together to collectively purchase the freehold and give individual leaseholders the right to a new lease (in substitution for the existing lease), granting an extension of a statutory 90 years added onto the unexpired term.
Both the 1967 and the 1993 Acts have been amended to either extend their application, or to void the effect of loopholes upheld by the courts.
The most radical reform of leasehold legislation came with the introduction of the Commonhold and Leasehold Reform Act 2002, giving leaseholders the right to manage their block without having to prove the freeholder at fault, and a new way of buying property, that of Commonhold which sadly never took off.