Windsor Hill is a 61.8 hectare biological Site of Special Scientific Interest in Princes Risborough in Buckinghamshire. It lies within the Chilterns Area of Outstanding Natural Beauty, and it is featured in the Nature Conservation Review. A small part is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust, and access to this area requires a permit.
Queendown Warren is a 22.2-hectare (55-acre) biological Site of Special Scientific Interest south-east of Rainham in Kent. It is a Local Nature Reserve, a Nature Conservation Review site, Grade 2, and a Special Area of Conservation. It is in the Kent Downs Area of Outstanding Natural Beauty. It is managed by the Kent Wildlife Trust, and part of it is owned by Plantlife.
Bix Bottom is a 102.3-hectare (253-acre) biological Site of Special Scientific Interest north-west of Henley-on-Thames in Oxfordshire. It is owned and managed as Warburg Nature Reserve by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.
Lye Valley is a 2.3-hectare (5.7-acre) biological Site of Special Scientific Interest in Headington, a suburb of Oxford in Oxfordshire. It is part of the 4.5-hectare (11-acre) Lye Valley Local Nature Reserve, which is owned and managed by Oxford City Council.
Honeypot Wood is a 9.5-hectare (23-acre) biological Site of Special Scientific Interest west of Dereham in Norfolk. It is managed by the Norfolk Wildlife Trust
Bull Cross, The Frith and Juniper Hill is a 42.33-hectare (104.6-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1954. The site is listed in the ‘Stroud District’ Local Plan, adopted November 2005, Appendix 6 as an SSSI and Regionally Important Geological Site (RIGS).
Grangelands and Pulpit Hill is a 25.5 hectare biological Site of Special Scientific Interest in Cadsden in Buckinghamshire. It lies within the Chilterns Area of Outstanding Natural Beauty, and the planning authorities are Wycombe District Council and Buckinghamshire County Council.
Tring Woodlands is a 23.8 hectare biological Site of Special Scientific Interest in Tring in Hertfordshire. It is part of the Chilterns Area of Outstanding Natural Beauty and the local planning authority is Dacorum District Council. The wood has a rich flora, showing that it is well established. It is a good example of a semi-natural beech wood in Hertfordshire. Plants that are abundant include woodruff, wood anemone and dog's mercury, and there are a variety of woodland birds. There is access to the wood from Hastoe Hill.
Fox Covert is a 2.9 hectare nature reserve near Royston in North Hertfordshire. It is owned and managed by the Herts and Middlesex Wildlife Trust.
Homefield Wood is a 6.1 hectare Site of Special Scientific Interest in Hambleden in Buckinghamshire. It is owned by the Forestry Commission, and managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. It is part of the Chilterns Area of Outstanding Natural Beauty.
Wakerley Spinney is a 4.4 hectare biological Site of Special Scientific Interest west of King's Cliffe in Northamptonshire.
Great Crabbles Wood is a 33-hectare (82-acre) biological Site of Special Scientific Interest north-west of Rochester in Kent.
West Dean Woods is a 16.3-hectare (40-acre) biological Site of Special Scientific Interest north of West Dean in West Sussex. It is managed by the Sussex Wildlife Trust.
Hatherton Flush is a Site of Special Scientific Interest (SSSI) by the River Weaver in Hatherton, near Wybunbury, Cheshire, England. It is protected for its variety of wetland plants. Species found at the site include the locally rare plants marsh helleborine, marsh lousewort and tubular water dropwort. Hatherton Flush is the largest example of this kind of flush in the county. The site was assessed as being in an "unfavourable"/"recovering" condition in 2008.
Harpsden Wood is a 29.4-hectare (73-acre) biological Site of Special Scientific Interest south of Henley-on-Thames in Oxfordshire. It is owned by the Woodland Trust and is open to the public.
Bear, Oveys and Great Bottom Woods is a 64.1-hectare (158-acre) biological Site of Special Scientific Interest west of Henley-on-Thames in Oxfordshire.
Berrick Trench is a 2.1-hectare (5.2-acre) biological Site of Special Scientific Interest north of Nettlebed in Oxfordshire.
Out Wood is a 19.2-hectare (47-acre) biological Site of Special Scientific Interest east of Charlbury in Oxfordshire.
Lower Test Valley is a 142-hectare (350-acre) biological Site of Special Scientific Interest near Totton in Hampshire. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. It is a nature reserve managed by the Hampshire and Isle of Wight Wildlife Trust.
Peake Wood is a 17.7-hectare (44-acre) biological Site of Special Scientific Interest west of Petersfield in Hampshire.
