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.
Thorpe Hay Meadow is a 6.4-hectare (16-acre) biological Site of Special Scientific Interest west of Staines-upon-Thames in Surrey. It is owned and managed by the Surrey Wildlife Trust.
Frays Farm Meadows is a 28.2-hectare (70-acre) biological Site of Special Scientific Interest near Denham in the London Borough of Hillingdon. It was notified as an SSSI in 1981, and has been managed by the London Wildlife Trust on behalf of Hillingdon Council since 1999. It is part of the Colne Valley Regional Park.
Hackpen, Warren & Gramp's Hill Downs is a 71.4-hectare (176-acre) biological Site of Special Scientific Interest in Letcombe Bassett in Oxfordshire.
Roding Valley Meadows is an 18.9-hectare (47-acre) biological Site of Special Scientific Interest in Buckhurst Hill in Essex. It is part of a 65.2 hectare Local Nature Reserve with the same name, which is owned by Epping Forest District Council and Grange Farm Trust, and managed by the Essex Wildlife Trust.
Frogmore Meadows is a 4.6-hectare (11-acre) biological Site of Special Scientific Interest in Hertfordshire and Buckinghamshire, north of the village of Chenies. It consists of two meadows in the Chilterns Area of Outstanding Natural Beauty, next to the River Chess, one of which is a Hertfordshire and Middlesex Wildlife Trust nature reserve. The planning authorities are Three Rivers District Council, Dacorum Borough Council and Chiltern District Council.
Long Herdon Meadow is a 4.5-hectare (11-acre) biological Site of Special Scientific Interest south of Marsh Gibbon in Buckinghamshire. It is part of Upper Ray Meadows nature reserve, which is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.
Poker's Pond Meadow is a 1.9-hectare (4.7-acre) biological Site of Special Scientific Interest south of Stoke Hammond in Buckinghamshire.
Upper Ray Meadows is a 181-hectare nature reserve, managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust, south of Marsh Gibbon in Buckinghamshire. It is composed of a number of areas, one of which, Long Herdon Meadow, is a biological Site of Special Scientific Interest.
Rodbed Wood is a 2.2-hectare (5.4-acre) biological Site of Special Scientific Interest in Medmenham in Buckinghamshire. It is in the Chilterns Area of Outstanding Natural Beauty.
Temple Island Meadows is a 14.1-hectare (35-acre) biological Site of Special Scientific Interest on the Buckinghamshire bank of the River Thames. It is north of Henley-on-Thames and opposite Temple Island, an island in the Thames.
Arncott Bridge Meadows is an 8.7-hectare (21-acre) biological Site of Special Scientific Interest in Arncott in Oxfordshire.
Wendlebury Meads and Mansmoor Closes is a 73.2-hectare (181-acre) biological Site of Special Scientific Interest south of Wendlebury in Oxfordshire.
Basildon Meadows is a 6.5-hectare (16-acre) biological Site of Special Scientific Interest on the southern outskirts of Basildon in Essex.
Sandbeach Meadows are a 30.3-hectare (75-acre) biological Site of Special Scientific Interest on the Dengie Peninsula, south-east of Bradwell-on-Sea in Essex. The local planning authority is Maldon District Council.
Iffley Meadows is a 36.1-hectare (89-acre) biological Site of Special Scientific Interest in Oxford in Oxfordshire. It is owned by Oxford City Council and managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust
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.
Bere Mill Meadows is a 10.3-hectare (25-acre) biological Site of Special Scientific Interest east of Whitchurch in Hampshire.
Foxlease and Ancells Meadows is a 68.8-hectare (170-acre) biological Site of Special Scientific Interest on the western outskirts of Farnborough in Hampshire.The site is in seven areas, two of which are nature reserves managed by the Hampshire and Isle of Wight Wildlife Trust, Ancells Farm and Whitehouse Meadow.
Ducklington Mead is a 4.6-hectare (11-acre) biological Site of Special Scientific Interest east of Ducklington in Oxfordshire.
