Policy information sourced from the Hillingdon Local Plan: Part 1

A3 Development at Northolt Aerodrome

At Northolt Aerodrome, within the area of open character identified on the proposals map, planning permission will not be granted except for development essential for aircraft operational purposes, or for safety, or the purposes of national defence. Subject to the other policies of the plan, outside the defined area of open character, planning permission will normally be granted for development at RAF Northolt only if it is directly associated with military or civilian aviation or for the purposes of national defence.

For more information please see Appendix 5 of the Local Plan: Part 1