What does “loss attributable to disturbance” mean?

Section 40 of the Land Acquisition and Compensation Act 1986 defines “loss attributable to disturbance” as:

any pecuniary loss suffered by a claimant as the natural, direct and reasonable consequence of—

(a) the service upon the claimant of a notice of intention to acquire, where the Authority has refused or failed to give consent to the carrying out of improvements to the land in respect of which that notice has been served or the effecting or obtaining of any sales, transactions, licences or approvals in respect of that land; and

(b) the fact that an interest of the claimant in that land has been divested or diminished, being a pecuniary loss for which provision is not otherwise made in this Part;

Liability limited by a scheme approved under Professional Standards Legislation