s 25 Default powers.
(1) Where, by virtue of any of the previous provisions of this Chapter, any unitary development plan or proposals for the alteration or replacement of such a plan are required to be prepared, or steps are required to be taken for the adoption of any such plan or proposals, then— (a) if at any time the Secretary of State is satisfied, after holding a local inquiry or other hearing, that the local planning authority are not taking the steps necessary to enable them to prepare or adopt such a plan or proposals within a reasonable period; or (b) in a case where a period is specified for the preparation or adoption of any such plan or proposals, if no such plan or proposals have been prepared or adopted by the local planning authority within that period, the Secretary of State may prepare and make the plan or any part of it or, as the case may be, alter or replace it, as he thinks fit. (2) The previous provisions of this Chapter shall, so far as practicable, apply with any necessary modifications in relation to the doing of anything under this section by the Secretary of State and the thing so done. (3) The authority mentioned in subsection (1) shall on demand repay to the Secretary of State so much of any expenses incurred by him in connection with the doing of anything which should have been done by them as he certifies to have been incurred in the performance of their functions.