Collection
Sites of special scientific interest
Find out about sites of special scientific interest (SSSI) in England, including consent and assent for activities on SSSI land.
Landowners and occupiers
Guidance and forms for landowners and occupiers of sites of special scientific interest (SSSI) land.
Public bodies
Guidance and forms for public bodies carrying out or approving activities on sites of special scientific interest (SSSI).
Condition and assessments
How Natural England assesses the condition of SSSIs, and the condition improvement process.
New sites and changes to sites
How Natural England will tell you if your land is a site of special scientific interest, or if there are changes to its designation.
Updates to this page
Published 20 April 2026