I think you will find this is within current policy making, from the council web site.
Development within Public Safety Zones
Within the Public Safety Zones planning permission will not be granted for: [A] any development, including extensions and changes of use, which is likely to result in more people:(i) living in the property, unless it is for the purpose of enlarging or improving the living accommodation for the benefit of existing residents; or
(ii) working or congregating at the property or site; or
short-stay car parking (where the maximum stay is expected to be less than six hours); or [C] distribution depots, sorting depots or retail warehouses; or
[D] children’s playgrounds, playing fields or sports grounds; or
[E] sports clubhouses; or
[F] any other development likely to result in significant numbers of people being present at a site on a regular basis.