In order to maintain a range of suitable and available sites and buildings for employment, non-employment development uses will not be supported on allocated sites or in buildings previously used for employment or in buildings currently used for employment unless:
(a) there is sufficient quality and quantity of employment sites available in the local area to provide opportunities for local employment uses; or
(b) it can be demonstrated through appropriate marketing that the site no longer provides a realistic prospect for employment uses; or
(c) the existing use is causing harm to surrounding uses and the new use will not cause harm for the existing neighbouring uses; and in all cases
(d) a sequential test has been applied for redevelopment of the site based on the following order of preference:
(i) employment based redevelopment;
(ii) mixed use including employment generating redevelopment;
(iii) non-employment generating redevelopment.