In this Part -
"house" includes any building or part of a building used or suitable for use as a dwelling and any outoffice, yard, garden or other land appurtenant to or usually enjoyed with that building or part of a building;
"lease" have the same meanings, respectively, as in Chapter 8 of Part 4;
"lessee" have the same meanings, respectively, as in Chapter 8 of Part 4;
"lessor" have the same meanings, respectively, as in Chapter 8 of Part 4;
"premium" have the same meanings, respectively, as in Chapter 8 of Part 4;
"rent" have the same meanings, respectively, as in Chapter 8 of Part 4;
"market value" in relation to a house, means the price which the unencumbered fee simple of the house would fetch if sold in the open market in such manner and subject to such conditions as might reasonably be calculated to obtain for the vendor the best price for the house, less the part of that price which would be attributable to the acquisition of, or of rights in or over, the land on which t