The NPPF 2018 (under which this NDP is being prepared) says that Green areas of particular importance to local communities can be designated to rule out new development other than in very special circumstances (Para 99—101).
Saltash Environmental action (SEA) have carrried out a study of the sites identified for this special protection under policies LEI2 and LEI3 of the Saltash Neighbourhood Development Plan.
The report will be published here when it is ready: Saltash NDP Green Space Assessment
You can find out more about SEA here: Saltash Environmental Action