(1)In this section “the urban development area” means the area for which the Corporation is for the time being the urban development corporation.
(2)The Secretary of State may by order made under this section alter the designated areas, as defined in section 2 (Interpretation) of this Act, so as to—
(a)include within the designated areas for the purposes of this Act any area of land in the London borough of Newham, Southwark or Tower Hamlets which for the time being is—
(i)situated within, or adjacent to, the urban development area; or
(ii)adjacent to any land which, not being situated within or adjacent to the urban development area, is adjacent to any land for the time being comprised in the designated areas;
(b)remove from the designated areas any land for the time being comprised in those areas.