Knole Park is a 383.4-hectare (947-acre) biological Site of Special Scientific Interest in Sevenoaks in Kent. About 43 acres of the park belongs to the National Trust as does Knole House that sits within it. The remaining parkland is privately owned by the Knole Estate. It is in the Kent Downs Area of Outstanding Natural Beauty.
Cobham Woods is a 242.7 hectares biological Site of Special Scientific Interest on the western outskirts of Rochester in Kent. It is in the Kent Downs Area of Outstanding Natural Beauty and part of it is managed by the National Trust.
Park Gate Down or Parkgate Down is a 7-hectare (17-acre) biological Site of Special Scientific Interest south-east of Stelling Minnis in Kent. It is also a Special Area of Conservation and is managed by the Kent Wildlife Trust,
Westfield Wood is a 5-hectare (12-acre) nature reserve north of Maidstone in Kent, which is managed by the Kent Wildlife Trust. It is part of the Wouldham to Detling Escarpment Site of Special Scientific Interest and Nature Conservation Review site, Grade I. It is also in the North Downs Woodlands Special Area of Conservation and the Kent Downs Area of Outstanding Natural Beauty.
Chipstead Downs is a 157.8-hectare (390-acre) biological Site of Special Scientific Interest south-east of Banstead in Surrey. Part of it is Park Downs, which is managed by the Banstead Commons Conservators.
Combe Bottom is a 42.1-hectare (104-acre) biological Site of Special Scientific Interest north of Shere in Surrey. It is designated a Local Nature Reserve called Shere Woodlands, and is managed by the Surrey Wildlife Trust.
Holies Down is a 5.6-hectare (14-acre) biological Site of Special Scientific Interest south of Streatley in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty and it is part of Lardon Chase, the Holies and Lough Down, three adjacent National Trust properties.
Wye and Crundale Downs is a 358.3-hectare (885-acre) biological and geological Site of Special Scientific Interest in a number of separate areas east of Ashford in Kent. It is a Special Area of Conservation and a Nature Conservation Review site, Grade I. and it is part of Kent Downs Area of Outstanding Natural Beauty. Some areas are part of a National Nature Reserve, and another area is a Geological Conservation Review.
Yockletts Bank is a 25.4-hectare (63-acre) biological Site of Special Scientific Interest west of Stelling Minnis in Kent. It is managed by KWT and is part of Kent Downs Area of Outstanding Natural Beauty.
Quarry Hangers is a 28.5-hectare (70-acre) biological Site of Special Scientific Interest south-west of Caterham in Surrey. An area of 11 hectares is a nature reserve managed by the Surrey Wildlife Trust.
Woldingham and Oxted Downs is a 128.4-hectare (317-acre) biological Site of Special Scientific Interest east of Caterham in Surrey.
Mill Meadows, Billericay is a 6.7 hectare 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.
Halling to Trottiscliffe Escarpment is a 600.6-hectare (1,484-acre) biological Site of Special Scientific Interest which runs from Cuxton to Wrotham, west of Rochester in Kent. It is a Nature Conservation Review site, Grade I. and a Special Area of Conservation
Fackenden Down is a 14-hectare (35-acre) nature reserve north of Sevenoaks in Kent. It is managed by the Kent Wildlife Trust. It is part of the Kent Downs Area of Outstanding Natural Beauty and the Otford to Shoreham Downs Site of Special Scientific Interest
Oldbury and Seal Chart is a 212.4-hectare (525-acre) biological Site of Special Scientific Interest east of Sevenoaks in Kent, England. It is in the Kent Downs Area of Outstanding Natural Beauty, and part of it is Oldbury Hill, a National Trust property and Iron Age hill fort.
One Tree Hill and Bitchet Common is a 79.2-hectare (196-acre) biological Site of Special Scientific Interest east of Sevenoaks in Kent. It is in Kent Downs Area of Outstanding Natural Beauty and One Tree Hill is managed by the National Trust
Otford to Shoreham Downs is a 145.1-hectare (359-acre) biological Site of Special Scientific Interest between Kemsing and Eynesford in Kent. It is part of Kent Downs Area of Outstanding Natural Beauty and part it is Fackenden Down, a nature reserve managed by the Kent Wildlife Trust
Wouldham to Detling Escarpment is a 311.2-hectare (769-acre) biological and geological Site of Special Scientific Interest which stretches from Wouldham to Detling, north of Maidstone in Kent. Part of it is a Geological Conservation Review site, and it is part of the North Downs Woodlands Special Area of Conservation and the Kent Downs Area of Outstanding Natural Beauty. It is a Nature Conservation Review site, Grade I and it includes three Kent Wildlife Trust nature reserves and a Local Nature Reserve,
Boxley Warren is a 83-hectare (210-acre) Local Nature Reserve north of Maidstone in Kent. It is privately owned and managed by Maidstone Borough Council. It is part of North Downs Woodlands Special Area of Conservation and Wouldham to Detling Escarpment Site of Special Scientific Interest
Fames Rough is a 23-hectare (57-acre) nature reserve south-west of Chipstead in Surrey. It is managed by the Surrey Wildlife Trust and is part of the Chipstead Downs Site of Special Scientific Interest.
