Fleet Pond is a 48.3-hectare (119-acre) biological Site of Special Scientific Interest in Fleet in Hampshire. It is also a Local Nature Reserve.
The Swale is a tidal channel of the Thames estuary that separates the Isle of Sheppey from the rest of Kent. On its banks is a 6,509.4-hectare (16,085-acre) biological Site of Special Scientific Interest which stretches from Sittingbourne to Whitstable in Kent. It is also a Ramsar internationally important wetland site and a Special Protection Area under the European Union Directive on the Conservation of Wild Birds. Parts of it are a Nature Conservation Review site, Grade I, National Nature Reserves, a Kent Wildlife Trust nature reserve and a Local Nature Reserve.
Ashtead Common, nearly 495 acres, is a wooded area open to the public, to the north of the village of Ashtead in Surrey, England. It is owned and managed by the City of London Corporation, after being bought by the City due to concern in the 1870s that access to the open countryside around London was being threatened. 180.5 ha of the common is a National Nature Reserve. Together with Epsom Common it forms part of a larger area of open countryside called Epsom and Ashtead Commons, which is designated a Site of Special Scientific Interest (SSSI).
Bisham Woods is an 86-hectare (210-acre) biological Site of Special Scientific Interest (SSSI) west of Cookham in Berkshire. The site is also a Local Nature Reserve and part of Chilterns Beechwoods Special Area of Conservation. The SSSI is part of a 153.2-hectare (379-acre) site, also called Bisham Woods, which has been owned and managed by the Woodland Trust since 1990.
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.
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.
Arger Fen is a 49.7-hectare (123-acre) biological Site of Special Scientific Interest (SSSI) south-east of Sudbury in Suffolk, England. The site occupies two separate areas. The 17.6-hectare (43-acre) Arger Fen Local Nature Reserve is part of the larger eastern block, and contains part of the 21-hectare (52-acre) Tiger Hill Local Nature Reserve, along with part of the 110-hectare (270-acre) Arger Fen and Spouse's Vale, a nature reserve managed by the Suffolk Wildlife Trust. The site lies in the Dedham Vale Area of Outstanding Natural Beauty,
Hucclecote Meadows is a 5.74-hectare (14.2-acre) biological Site of Special Scientific Interest divided into two areas on each side of the M5 road in the Severn Vale, Gloucestershire. It was notified in 1984. The western area is also a Local Nature Reserve.
The Crouch and Roach Estuaries are a 1729 hectare biological Site of Special Scientific Interest (SSSI) at the mouth of the Crouch and Roach rivers in Essex. The Crouch part of the SSSI stretches from near Battlesbridge to Foulness Island, and the Roach from Rochford to the junction with the Crouch. Part of the site is in the Mid-Essex Coast Special Protection Area under the EC Directive on the Conservation of Wild Birds, and a Ramsar wetland site of international importance. It is also part of the Essex Estuaries Special Area of Conservation. An area of 65 hectares is managed by the Essex Wildlife Trust as the Lion Creek and Lower Raypits nature reserve and 8 hectares at Woodham Fen, both of which are managed by the Essex Wildlife Trust. A small area is also a geological SSSI, The Cliff, Burnham-on-Crouch.
Mill Meadows, Billericay is a 6.7-hectare (17-acre) biological Site of Special Scientific Interest (SSSI) in Billericay in Essex, England. It is part of the 36.8 hectare Mill Meadows Local Nature Reserve (LNR), which is owned and managed by Basildon District Council.
Folkestone Warren is a 316.3-hectare (782-acre) biological and geological Site of Special Scientific Interest (SSSI) which runs along the coast between Folkestone and Dover in Kent. It is a Nature Conservation Review site and it contains three Geological Conservation Review sites and part of a fourth. An area of 83.6 hectares is a Local Nature Reserve,
Stodmarsh SSSI is a 623.2-hectare (1,540-acre) biological Site of Special Scientific Interest near Stodmarsh, north-east of Canterbury in Kent. Parts of it are a Nature Conservation Review site, Grade I, a National Nature Reserve, a Ramsar internationally important wetland site, a Special Area of Conservation and a Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
Blindley Heath SSSI is a 26.3-hectare (65-acre) biological Site of Special Scientific Interest in the hamlet Blindley Heath, on the southern outskirts of Godstone in Surrey. It is also a Local Nature Reserve. It is owned by Godstone Parish Council and managed by the Surrey Wildlife Trust
Broxhead and Kingsley Commons is a 105.1-hectare (260-acre) biological Site of Special Scientific Interest north of Lindford in Hampshire. It is part of Wealden Heaths Phase II Special Protection Area for the Conservation of Wild Birds and Broxhead Common is a 41.8-hectare (103-acre) Local Nature Reserve owned and managed by Hampshire County Council.
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.
Hurst Castle and Lymington River Estuary is a 1,077.3-hectare (2,662-acre) biological and geological Site of Special Scientific Interest near Lymington in Hampshire. It is a Nature Conservation Review site and two areas are Geological Conservation Review sites. Three areas are local nature reserves, Boldre Foreshore, Sturt Pond and Lymington and Keyhaven Marshes; the latter site is managed by the Hampshire and Isle of Wight Wildlife Trust. Part of it is North Solent National Nature Reserve. It is part of Solent and Southampton Water Ramsar site and Special Protection Area. Parts of it are in Solent Maritime and Solent and Isle of Wight Lagoons Special Areas of Conservation.
Porton Down SSSI is a 1,559-hectare (3,850-acre) biological Site of Special Scientific Interest which spans the border between Hampshire and Wiltshire in England. It is adjacent to Porton Down science park near Porton, and much of it is Ministry of Defence property which is closed to the public. It is a Nature Conservation Review site, Grade I, a Special Area of Conservation and a Special Protection Area.
