Definitions for "SITES OF SPECIAL SCIENTIFIC INTEREST"
Areas designated by English Nature as being of special interest by reason of their flora, fauna, geological or physiographical features.
SSSIs are notified under the W ildlife and Countryside Act 1981 as areas of land or water which, in the opinion of SNH, are of special interest by reason of their biological, geological or physiographical interest.
Sites of Special Scientific Interest can be either of biological or geological (or mixed) interest, notified by English Nature under the Wildlife and Countryside Act 1981 (as amended). More information about London's 36 SSSIs can be found on English Nature's website. All the London area is included within Sites of Metropolitan Importance for Nature Conservation.