1954. Additional protection was given to council tenants and many housing association tenants, who were to be known as secure tenants. Council tenants were granted the right to buy their homes. Personal representatives of deceased resident landlords were given a period of two years (instead of the one year under the 1974 Act) during which they had freedom to evict. The Act qualified the description of accommodations so that a tenancy of part of a flat in a purpose-built block occupied by a resident landlord could not be subject to a protected tenancy, an unintended effect of the wording in the Rent Act 1974. Housing Associations registered under the Industrial and Provident Societies Act 1965 might now be registered with the Housing Corporation even if their objectives were to acquire, repair, improve or convert houses for eventual disposal by sale as well as by lease. Prior to the 1980 Act, housing associations had to keep their houses available for letting and were therefore prohibited from selling them. Housing associations were now enabled to build or to improve property or to put existing properties up for sale into shared ownership. Protection could now extend to previously protected tenancies—those that belonged to Her Majesty in right of the Crown, if managed by the Crown Estate Commissioners (largely in the right of the Duchy of Lancaster, tenancies that belong to the Duchy of Cornwall), statutory tenancies under the Rent (Agriculture) Act 1976 and long leaseholds at low rents (Part I Landlord and Tenant Act 1954). (Tenants of the Crown direct and of government departments (which includes tenants of a Health Service Body) remain outside protection). Shared ownership leases were not to be treated as long tenancies at a low rent for the purposes of the Leasehold Reform Act 1967. Rent Officers were asked to determine fair rents on a non-statutory basis for shared ownership properties. Initial enthusiasm was tempered when questions of some difficulty arose in the assessment of a fair rent relating to equity stakes and premiums. These were dealt with later in the Housing and Planning Act 1986. The Matrimonial Homes Act 1983 consolidated certain enactments relating to the rights of a husband or wife to occupy a dwelling house that had been a matrimonial home. Occupation by one spouse was to be treated as occupation by the other spouse. The Act provided for the transfer of certain tenancies on divorce.