Ash to Brookwood Heaths is a 1,576.3-hectare (3,895-acre) biological Site of Special Scientific Interest west of Guildford in Surrey. It is a Nature Conservation Review site, Grade I. It is part of the Thames Basin Heaths Special Protection Area and the Thursley, Ash, Pirbright and Chobham Special Area of Conservation. An area of 1,392 hectares is managed as a nature reserve by the Surrey Wildlife Trust.
Chiddingfold Forest is a 542.5-hectare (1,341-acre) biological Site of Special Scientific Interest in Chiddingfold in Surrey and West Sussex. One part of it, Fir Tree Copse, is a nature reserve which is managed by the Surrey Wildlife Trust
Vann Lake and Ockley Woods is a 57.8-hectare (143-acre) biological Site of Special Scientific Interest south of Ockley in Surrey. Vann Lake is part of Vann Lake and Candy's Copse, a nature reserve managed by the Surrey Wildlife Trust.
Penn's Rocks is a 10.2-hectare (25-acre) biological Site of Special Scientific Interest north of Crowborough in East Sussex.
Rock Wood is a 10.4-hectare (26-acre) biological Site of Special Scientific Interest north of Uckfield in East Sussex.
Eridge Green is a 8.4-hectare (21-acre) biological Site of Special Scientific Interest north-east of Crowborough in East Sussex. It is part of the 44 hectares Eridge Rocks nature reserve, which is managed by Sussex Wildlife Trust.
Northpark Copse is a 9.9-hectare (24-acre) Site of special scientific interest which is east of Shalfleet. The site was notified in 1986 for its biological features.
Brookland Wood is a 10.9-hectare (27-acre) biological Site of Special Scientific Interest east of Tunbridge Wells in Kent.
Robins Wood is a 47.7-hectare (118-acre) biological Site of Special Scientific Interest between Tunbridge Wells and Ashford in Kent.
House Copse is a 12.5-hectare (31-acre) biological Site of Special Scientific Interest west of Crawley in West Sussex.
Mills Rocks is a 1.9-hectare (4.7-acre) biological Site of Special Scientific Interest south-east of East Grinstead in West Sussex.
Worth Forest is a 43.8-hectare (108-acre) biological Site of Special Scientific Interest south of Crawley in West Sussex. It is in the High Weald Area of Outstanding Natural Beauty.
Perry Copse Outcrop is a 0.2-hectare (0.49-acre) geological Site of Special Scientific Interest in Fernhurst in West Sussex. It is a Geological Conservation Review site.
St Leonard's Forest SSSI is an 85.4-hectare (211-acre) biological Site of Special Scientific Interest east of Horsham in West Sussex. The SSSI is in two separate areas, with the western part being in the 289-hectare (710-acre) Forestry Commission managed St Leonard's Forest.
St Leonard's Park Ponds is a 3.9-hectare (9.6-acre) biological Site of Special Scientific Interest east of Horsham in West Sussex.
East Dean Park Wood is a 17.8-hectare (44-acre) biological Site of Special Scientific Interest south of East Dean in West Sussex.
Wakehurst and Chiddingly Woods is a 155.9-hectare (385-acre) biological and geological Site of Special Scientific Interest south-east of Crawley in West Sussex, England. It is a Nature Conservation Review site, Grade I, and part of it is a Geological Conservation Review site.
Heyshott Down is a 42.6-hectare (105-acre) biological Site of Special Scientific Interest south of Midhurst in West Sussex. It is a Nature Conservation Review site, Grade 2.
Butter Wood is a 133-hectare (330-acre) biological Site of Special Scientific Interest (SSSI) east of Basingstoke in Hampshire. Part of Up Nately LNR, which is designated a Local Nature Reserve, is in the SSSI.
Upper Greensand Hangers: Empshott to Hawkley is a 37.7-hectare (93-acre) biological Site of Special Scientific Interest north of Petersfield in Hampshire. It is part of the East Hampshire Hangers Special Area of Conservation.
