Policy information sourced from the Hillingdon Local Plan: Part 1
MIN1 Safeguarding of Sand and Gravel Reserves
Wherever sand and gravel reserves are known to exist the mineral planning authority will, where practicable, safeguard those resources from sterilisation by surface development. The identification of such reserves will, in itself, create no presumption that proposals for mineral extraction will be acceptable.
For more information please see Appendix 5 of the Local Plan: Part 1