(a) Section 51 shall be construed to prohibit a business establishment from discriminating in the sale or rental of housing based upon age. Where accommodations are designed to meet the physical and social needs of senior citizens, a business establishment may establish and preserve that housing for senior citizens, pursuant to Section 51.3, except housing as to which Section 51.3 is preempted by the prohibition in the federal Fair Housing Amendments Act of 1988 (Public Law 100-430) and implementing regulations against discrimination on the basis of familial status.
For accommodations constructed before February 8, 1982, that meet all the criteria for senior citizen housing specified in Section 51.3, a business establishment may establish and preserve that housing development for senior citizens without the housing development being designed to meet physical and social needs of senior citizens.