(1)Where any person has completed, in respect of any dwelling, any works required to be executed by an improvement notice or any works as respects which an undertaking was accepted under this Part of this Act, he may apply to the local authority for a charging order, and subsections (2) to (4) of section 20, and section 21, of the Act of 1950 shall, with any necessary modifications, apply in relation to any such application or order as they apply in relation to an application or order under the said section 20 and as if any reference in the said section 21 to Part II of the Act of 1950 included a reference to this Part of this Act.
(2)Where under section 28 of this Act a local authority have themselves incurred expenses in the execution of works, it shall be competent for them to make a charging order in favour of themselves in respect of such expenses, and subsections (2) to (4) of section 20, and section 21, of the Act of 1950 shall, with any necessary modifications, apply to a charging order so made in like manner as they apply to a charging order made under the said section 20 and as if any reference in the said section 21 to Part II of the Act of 1950 included a reference to this Part of this Act.