The provisions of this section shall have effect for enabling mortgagees to take advantage of the provisions of sections 138 to 151 of the principal Act (notice requiring purchase by local planning authority on grounds of planning blight).
Where the whole or part of a hereditament or agricultural unit is comprised in land of any of the descriptions contained in paragraphs (b) to (f) of section 138(1) of the principal Act or paragraphs (a) to (d) of section 33(1) of this Act and a person claims that—
then, subject to the provisions of this section, he may serve on the appropriate authority a notice in the prescribed form requiring that authority to purchase that interest to the extent specified in, and otherwise in accordance with, sections 138 to 151 of the principal Act.
Notice under this section shall not be served unless one or other of the following conditions is satisfied with regard to the interest which the mortgagee claims he has the power to sell:—
If any question arises which authority are the appropriate authority for the purposes of subsection (2) above, subsection (4)(b) above shall then apply with the substitution for the period of six months of a reference to that period extended by so long as it takes to obtain a determination of the question.
No notice under this section shall be served in respect of a hereditament or agricultural unit, or any part of a hereditament or agricultural unit, at a time when a notice already served under section 139 of the principal Act is outstanding with respect to the hereditament, unit or part; and no notice shall be so served under section 139 of that Act at a time when a notice already served under this section is so outstanding.
For the purposes of subsection (6) above, a notice served under this section or section 139 of the principal Act shall be treated as outstanding with respect to a hereditament or agricultural unit, or to part of a hereditament or agricultural unit, until—
The grounds on which objection may be made in a counter-notice under section 140 of the principal Act to a notice under this section are those specified in paragraphs (a) to (c) of subsection (2) of that section and, in a case to which section 35(1) below applies, the ground specified in (that subsection and also the following grounds:—