(1)In the case of land—
(a)which forms a frontage to a road, or
(b)which abuts on or is adjacent to a road,
a local highway authority or the Secretary of State may enter into an agreement with any owner of the land imposing on the land, so far as that owner’s interest in the land enables him to bind it, restrictions for controlling the development of the land.
(2)Any restrictions imposed by an agreement under subsection (1) above may be enforced by the local highway authority or the Secretary of State, as the case may be, against the owner referred to in that subsection and any person deriving title under him in the like manner and to the like extent—
(a)as if that authority or the Secretary of State were possessed of, or interested in, adjacent land; and
(b)as if that agreement had been entered into for the benefit of such land.