1A. (1) A person shall cease to be a relevant purchaser for the purposes of this Act—

(a) where the sale of the house concerned was effected by a transfer order made by way of a shared ownership lease provided for in accordance with Regulation 11 of the Housing (Sale of Houses) Regulations 1995 (S.I. No. 188 of 1995)—

(i) on the date of expiry of the lease due to the effluxion of time, or

(ii) where the purchaser purchases the reversion expectant on the termination of the lease, on the expiry of—

(I) the period of 20 years from the date the transfer order became effective, or

(II) the period from the date the transfer order became effective to the date of purchase of the reversion expectant on the termination of the lease,

whichever is the longer period,

(b) in the case that the sale of the house was effected by a transfer order made by way of a lease other than a lease referred to in paragraph (a) —

(i) on the date of expiry of the lease due to the effluxion of time, or

(ii) where the purchaser acquires the fee simple in the house from the housing authority under section 26 of the Landlord and Tenant (Ground Rents) (No. 2) Act 1978, on the expiry of—

(I) the period of 20 years from the date the transfer order became effective, or

(II) the period from the date the transfer order became effective to the date of acquisition of the fee simple,

whichever is the longer period,

(c) in the case that the house was sold under Part 3 or 4 of the Housing (Miscellaneous Provisions) Act 2009 or Part 3 of the Housing (Miscellaneous Provisions) Act 2014, on the expiration of the charged period provided for by each of those Parts respectively, or

(d) in any other case, on the expiry of the period of 20 years from the date of the sale of the house.

(2) Subsection (1) shall apply to a person irrespective as to when the house (other than an affordable house) was sold by the housing authority to the person concerned and, in the definition of ‘relevant purchaser’ in section 1—

(a) the reference in paragraph (a) of that definition to the Housing Acts 1966 to 2014, and

(b) paragraph (b) of that definition,

shall be construed accordingly.]