Which legislation governs residential tenancies in the UK?

The Housing Act is the correct answer as it encompasses various aspects of residential tenancies in the UK, establishing the legal framework for renting residential properties. It covers vital areas such as the rights and obligations of landlords and tenants, provisions for security of tenure, and processes for evicting tenants. Additionally, the Housing Act has been amended over the years, most notably with the introduction of the Housing Act 1988 and subsequent legislation, which further refined and expanded upon its provisions.

The Rent Act primarily pertains to rent control measures and applies to tenancies established before certain dates. The Tenancy Agreement Act is not a recognized piece of legislation in the UK that governs residential tenancies, and while the Residential Property Act does exist, it is more focused on specific aspects of residential property rather than serving as a comprehensive governing law for residential tenancies. Hence, the Housing Act remains the primary legislation covering landlord-tenant relationships in the UK.