3. In this Part—

“housing” includes social and affordable housing;

“market value”, in relation to a site, shall, other than in section 21, be construed in accordance with section 12;

“owner” means—

(a) in relation to land that is registered land within the meaning of the Registration of Title Act 1964, the registered owner, and

(b) in relation to all other land, a person, other than a mortgagee not in possession, who, whether in his or her own right or as trustee or agent for any other person, is entitled to receive the rack rent of the land or, where the land is not let at a rack rent, would be so entitled if it were so let;

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“register” has the meaning given to it by section 6;

“regeneration land” means land identified by a planning authority in its development plan or local area plan, after the coming into operation of section 28, in accordance with section 10(2)(h) of the Act of 2000 with the objective of development and renewal of areas in need of regeneration, and includes any structures on such land;

“residential land” means land included by a planning authority in its development plan or local area plan in accordance with section 10(2)(a) of the Act of 2000 with the objective of zoning for use solely or primarily for residential purposes, and includes any structures on such land;

“Tribunal” means Valuation Tribunal;

“vacant site” has the meaning given to it by section 5;

“vacant site levy” has the meaning given to it by section 15.