¹[116E. determination of annual value of covered space of building and of vacant land.(1) the annual value of any covered space of building in any ward shall be the amount arrived at by multiplying the total area bf such covered space of building by the final base unit area value of such covered space and the relevant factors as referred to in clause (b) of sub-section (2) of section 116 a.
    Explanation.-- covered space, in relation to a building, shall mean the total floor area in all the floor thereof, including the thickness of walls, and shall include the spaces of covered verandah and courtyard, gangway, garage, common service area, staircase, and balcony including any area projected beyond the plot boundary and such other space as may be prescribed.
    (2) ²[³[the corporation]] may require the total area of the covered space of building as aforesaid to be certified by an architect registered under the architects act, 1972 (20 of 1972), or any licensed architect,116a. classification of vacant lands and buildings into colonies and groups and specification of base unit area values therefor subject to such conditions as may be prescribed.
    (3) the annual value of any vacant land in any ward shall be the amount arrived at by multiplying the total area of such vacant land by the final base unit area value of such land and the relevant factors as referred to in clause (b) of subsection (2) of section 116a.
    (4) if, in the case of any vacant land or covered space of building, any portion thereof is subject to different final base unit area values or is not self-occupied, the annual value of each such portion shall be computed separately, and the sum of such annual values shall be the annual value for such vacant land or covered space of building, as the case may be.