This section applies to any land acquired or appropriated by a planning authority for planning purposes and held by them for those purposes.

Subject to subsection (3), the functions of a planning authority shall include power for the authority, notwithstanding any limitation imposed by law on the capacity of the authority by virtue of its constitution, to erect, construct or carry out any building or work on any land to which this section applies.

Subsection (2) confers such power only if such power is not and could not be conferred on the authority or any other person by or under any enactment, other than an enactment in this Part.

The functions of a planning authority shall include power for the authority, notwithstanding any such limitation as is mentioned in subsection (2), to repair, maintain and insure any buildings or works on land to which this section applies, and generally to deal therewith in a proper course of management.

Nothing in this section shall be construed as authorising any act or omission on the part of a planning authority which is actionable at the instance of any person on any ground other than such a limitation as is mentioned in subsection (2).