A time-share project shall be permitted on any land or improvement on such land lying within the Commonwealth unless prohibited by zoning then in effect or by the express language of any legally enforceable covenant, condition, or restriction, however denominated, contained in the governing documents of record for such land, including condominium instruments under the Condominium Act (§ 55.1-1900 et seq.), a time-share instrument under this chapter, a declaration under the Virginia Real Estate Cooperative Act (§ 55.1-2100 et seq.), or a master deed under the Horizontal Property Act (§ 55.1-2000 et seq.). This chapter shall not be construed to affect the validity of any provision of any time-share program or any expansion of such a program or time-share instrument recorded or in existence prior to July 1, 1981.