Notwithstanding any interest of the Crown in Crown land, but subject to the following provisions of this section—
Except with the consent of the appropriate authority—
No enforcement notice shall be served under section 87 of this Act in respect of development carried out by or on behalf of the Crown after the appointed day on land which was Crown land at the time when the development was carried out.
No listed building enforcement notice shall be served in respect of works executed by or on behalf of the Grown in respect of a building which was Crown land at the time when the works were executed.
No purchase notice or listed building purchase notice shall be served in relation to any interest in Crown land unless an offer has been previously made by the owner of that interest to dispose of it to the appropriate authority on terms that the price payable for it shall be equal to (and shall, in default of agreement, be determined in like manner as) the compensation which would be payable in respect of that interest if it were acquired in pursuance of a purchase notice, and that offer has been refused by the appropriate authority.
The rights conferred by the provisions of sections 192 to 207 of this Act shall be exercisable by a person who (within the meaning of those provisions) is an owner-occupier of a hereditament or agricultural unit which is Crown land, or is a resident owner-occupier of a hereditament which is Crown land, in the same way as they are exercisable in respect of a hereditament or agricultural unit which is not Crown land, and those provisions shall apply accordingly.
In this Part of this Act "Crown land" means land in which there is a Crown interest or a Duchy interest; "Grown interest" means an interest belonging to Her Majesty in right of the Crown, or belonging to a government department, or held in trust for Her Majesty for the purposes of a government department; " Duchy interest" means an interest belonging to Her Majesty in right of the Duchy of Lancaster, or belonging to the Duchy of Cornwall; and for the purposes of this section and section 267 of this Act "the appropriate authority", in relation to any land—
and, if any question arises as to what authority is the appropriate authority in relation to any land, that question shall be referred to the Treasury, whose decision shall be final.