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A dwelling ceases to be social housing if it is—
disposed of with the Secretary of State's consent in accordance with section 32 or 43 of the Housing Act 1985 (disposals by local authorities),
appropriated with the Secretary of State's consent in accordance with section 19(2) of that Act (appropriation by local authorities for some other purpose), or
disposed of by a local authority with the Secretary of State's consent in accordance with any other enactment.
Subsection (1A) does not apply to a disposal in pursuance of shared ownership arrangements or equity percentage arrangements.
Subsection (1A) does not apply if the consent is conditional upon the dwelling continuing to be low cost rental accommodation or low cost home ownership accommodation.
A condition of that kind shall include provision for determining when the dwelling ceases to be social housing.