Site of Special Scientific Interest. SSSI selection and conservation[edit] Sites notified for their biological interest are known as Biological SSSIs, and those notified for geological or physiographic interest are Geological SSSIs.
SSSIs may be divided into management units, with some SSSI areas including units that are noted for both biological and geological interest. Biological SSSIs[edit]
Urban infrastructure. Green buildings. Urban cycling. Heritage buildings. Unsorted urban planning.