# The Town and Country Planning (General Permitted Development) (Scotland) Order 1992, Paragraph 21F


(1) Development consisting of a change of use of a fish farm—
(a) to the breeding, rearing or keeping of halibut (Hippoglossus hippoglossus) where the established use of that fish farm is the breeding, rearing or keeping of Atlantic salmon (Salmo salar);
(b) to the breeding, rearing or keeping of Atlantic salmon (Salmo salar) where the established use of that fish farm is the breeding, rearing or keeping of sea trout (Salmo trutta) or rainbow trout (Oncorhynchus mykiss); ...
(c) to the breeding, rearing or keeping of sea trout (Salmo trutta) or rainbow trout (Oncorhynchus mykiss) where the established use of that fish farm is the breeding, rearing or keeping of Atlantic salmon (Salmo salar).
(d) to the breeding, rearing or keeping of scallop (Aequipecten opercularis or Pecten maximus) where the established use of that fish farm is the breeding, rearing or keeping of—
(i) mussel (Mytilus);
(ii) Pacific oyster (Crassostrea gigas); or
(iii) native oyster (Ostrea edulis);
(e) to the breeding, rearing or keeping of mussel (Mytilus) where the established use of that fish farm is the breeding, rearing or keeping of—
(i) scallop (Aequipecten opercularis or Pecten maximus);
(ii) Pacific oyster (Crassostrea gigas); or
(iii) native oyster (Ostrea edulis); or
(f) to the breeding, rearing or keeping of native oyster (Ostrea edulis) where the established use of that fish farm is the breeding, rearing or keeping of—
(i) mussel (Mytilus);
(ii) scallop (Aequipecten opercularis or Pecten maximus); or
(iii) Pacific oyster (Crassostrea gigas).
(2) In this Class, “established use” means lawful use within the meaning of section 150 of the Act.

---
Source: https://www.legislation.gov.uk/uksi/1992/223/schedule/1/class/21f (the official version)
Page: https://openlegislation.uk/town-and-country-planning-general-permitted-development-scotland-order-1992/schedule-1/class/21f
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.