This section applies to any power to acquire land compulsorily under—
the Housing Act 1985,
the Housing Associations Act 1985,
Part III of the Housing Act 1988 (housing action trust areas), or
Part VII of the Local Government and Housing Act 1989 (renewal areas).
Any power to which this section applies may be exercised in relation to an interest in Crown land which is for the time being held otherwise than by or on behalf of the Crown, but only with the consent of the appropriate authority.
For the purposes of this section "the appropriate authority", in relation to Crown land, is—
in the case of land belonging to Her Majesty in right of the Crown and forming part of the Crown Estate, the Crown Estate Commissioners;
in relation to any other land belonging to Her Majesty in right of the Crown, the government department having the management of that land;
in relation to land belonging to Her Majesty in right of the Duchy of Lancaster, the Chancellor of the Duchy;
in relation to land belonging to the Duchy of Cornwall, such person as the Duke of Cornwall, or the possessor for the time being of the Duchy of Cornwall, appoints;
in the case of land belonging to a government department or held in trust for Her Majesty for the purposes of a government department, that department.
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.