Sites of importance for nature conservation (SINCs) are areas designated for their importance for wildlife. The designation is also referred to as 'non-statutory wildlife site' or 'local site'.
In London, there are three grades of SINC:
- sites of metropolitan importance - important at a London-wide scale, sites which contain the best examples of London's habitats, have particularly rare species or have particular significance in heavily built-up areas
- sites of borough importance - important on a borough perspective, divided into two grades on the basis of their quality
- sites of local importance - of particular value to people nearby, such as residents or schools
There are 24 SINCs in Hackney including a number of public parks, wetlands and waterways and woodlands.