Aston Rowant Cutting is a 3.5-hectare (8.6-acre) geological Site of Special Scientific Interest south of Aston Rowant in Oxfordshire. It is a Geological Conservation Review site.
Chimney Meadows is a 49.6-hectare (123-acre) biological Site of Special Scientific Interest between Abingdon-on-Thames and Faringdon in Oxfordshire. It is also a national nature reserve, and part of the 308-hectare (760-acre) Chimney Meadows nature reserve, which is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.
Glyme Valley is a 28.9-hectare (71-acre) biological Site of Special Scientific Interest east of Chipping Norton in Oxfordshire. An area of 3 hectares is a nature reserve managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust
Pamber Forest and Silchester Common is a 341.7-hectare (844-acre) biological Site of Special Scientific Interest in Tadley in Hampshire. Pamber Forest and Upper Inhams Copse is managed by the Hampshire and Isle of Wight Wildlife Trust. Upper Inhams Copse was purchased by the Trust in 2001 and added to Pamber Forest.
Aston Clinton Ragpits is a 2.9-hectare (7.2-acre) biological Site of Special Scientific Interest in Aston Clinton in Buckinghamshire. It is a former chalk quarry, which is now a nature reserve managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. It is in the Chilterns Area of Outstanding Natural Beauty.
Frilford Heath, Ponds and Fens is a 108.8-hectare (269-acre) biological Site of Special Scientific Interest in Frilford, west of Abingdon in Oxfordshire. An area of 3 hectares, separate from the main site is Hitchcopse Pit, a nature reserve managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.
Burbage Wood and Aston Firs is a 51.1-hectare (126-acre) biological Site of Special Scientific Interest in Leicestershire.
Preston Marshes is a 43.4-hectare (107-acre) biological Site of Special Scientific Interest east of Canterbury in Kent.
Ranmore Common SSSI is a 224.3-hectare (554-acre) biological Site of Special Scientific Interest in Ranmore Common, north-west of Dorking in Surrey.
Aston Upthorpe Downs is a 38.5-hectare (95-acre) biological Site of Special Scientific Interest south of Aston Upthorpe in Oxfordshire. It is a Nature Conservation Review site, Grade I.
New Marston Meadows is a 44.7-hectare (110-acre) biological Site of Special Scientific Interest in Oxford in Oxfordshire.
Port Meadow with Wolvercote Common and Green is a 167.1-hectare (413-acre) biological Site of Special Scientific Interest in Oxford in Oxfordshire. It is a Nature Conservation Review site, Grade I, and part of Oxford Meadows Special Area of Conservation. The remains of Godstow Abbey, which is a Scheduled Monument, are in the north of the site.
Stonesfield Common, Bottoms and Banks is a 27.45-hectare (67.8-acre) biological Site of Special Scientific Interest (SSSI) south of Stonesfield in Oxfordshire.
Bere Mill Meadows is a 10.3-hectare (25-acre) biological Site of Special Scientific Interest east of Whitchurch in Hampshire.
Bransbury Common is a 158.6-hectare (392-acre) biological Site of Special Scientific Interest south-east of Andover in Hampshire. It is a Nature Conservation Review site, Grade I.
Chilbolton Common is a 35.5-hectare (88-acre) biological Site of Special Scientific Interest in Chilbolton in Hampshire.
Danebury Hill is a 13.7-hectare (34-acre) biological Site of Special Scientific Interest north-east of Nether Wallop in Hampshire. It is part of Danebury Hillfort Local Nature Reserve.
Shortheath Common is a 59.5-hectare (147-acre) biological Site of Special Scientific Interest east of Bordon in Hampshire. It is also a Local Nature Reserve and a Special Area of Conservation.
Stockbridge Common Marsh is a 64.8-hectare (160-acre) biological Site of Special Scientific Interest south of Stockbridge in Hampshire. It is owned by the National Trust.
