Syon Park is the garden of Syon House, the London home of the Duke of Northumberland in Isleworth in the London Borough of Hounslow. It was landscaped by Capability Brown in the 18th century, and it is Grade I listed by English Heritage under the Historic Buildings and Ancient Monuments Act 1953 for its special historic interest. The 56.6-hectare (140-acre) main gardens are a Site of Borough Importance for Nature Conservation, Grade I, and the flood meadows next to the River Thames are a biological Site of Special Scientific Interest (SSSI) and a Site of Metropolitan Importance for Nature Conservation.
Kings and Bakers Woods and Heaths is a 212.8 hectare Site of Special Scientific Interest (SSSI) between Heath and Reach in Bedfordshire and Great Brickhill in Buckinghamshire. The site is mainly in Bedfordshire but includes Rammamere Heath in Buckinghamshire. It was notified in 1984 under Section 28 of the Wildlife and Countryside Act 1981, and the local planning authorities are Central Bedfordshire Council and Aylesbury Vale Council. Part of it is a National Nature Reserve, and part of it is a nature reserve managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. it is also a Nature Conservation Review site.
Sheet Hedges Wood is in the parish of Newtown Linford, and lies some 1-mile (1.6 km) north of Groby, in Leicestershire, UK. The site is made up of two areas of woodland and a meadow field, all with public access, extending 29 acres (120,000 m2). The woodland block is adjacent to the road includes a car park and access trails.
Ashton Wold is a 54.0-hectare (133-acre) biological Site of Special Scientific Interest (SSSI) east of the market town Oundle in Northamptonshire.
Northaw Great Wood is a 223.6-hectare (553-acre) biological Site of Special Scientific Interest (SSSI) near Cuffley in Hertfordshire, England. It covers Northaw Great Wood Country Park, which is managed by Welwyn Hatfield Borough Council, Well Wood, Justice Hill and Grimes Bottom. Part of the site is managed by Hertfordshire County Council as a schools' park. The country park is also a local nature reserve.
Bradenham Woods, Park Wood and The Coppice is a 129.1-hectare (319-acre) biological Site of Special Scientific Interest in Bradenham in Buckinghamshire. It is in the Chilterns Area of Outstanding Natural Beauty, and it is described in A Nature Conservation Review. The site is part of the Bradenham Estate, which is owned by the National Trust. It is also designated a Special Area of Conservation. Grim's Ditch, a Scheduled Monument, runs through the site.
Ellesborough and Kimble Warrens is a 68.9-hectare (170-acre) biological Site of Special Scientific Interest in Ellesborough in Buckinghamshire. The local planning authority is Wycombe District Council. It is part of the Chilterns Area of Outstanding Natural Beauty.
Grangelands and Pulpit Hill is a 25.5-hectare (63-acre) 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.
Southill Park contains the site of late medieval Gastlings or Gastlyns Manor House and is the name given to a country house in Southill, Bedfordshire and its adjoining privately owned gardens and separate public parkland; it includes a lake and woodland. Its focal point is an early Georgian house, for disambiguation known as Southill Park House which is a heritage-listed building in the highest category. The parkland has legal designations in heritage and plant or wildlife protection. Further structures in the grounds have heritage protection including the follies of a Tuscan architecture temple and a partially stone-faced bridge, both designed by Henry Holland.
Marston Thrift is a 37.4-hectare (92-acre) biological Site of Special Scientific Interest between Marston Moretaine and Cranfield in Bedfordshire. It was notified in 1984 under Section 28 of the Wildlife and Countryside Act 1981, and the local planning authority is Central Bedfordshire Council. It is also a Local Nature Reserve, which extends to a larger area of 55.8 hectares.
Howe Park Wood is a 21.4 hectare Site of Special Scientific Interest in Tattenhoe, a district of Milton Keynes in Buckinghamshire. It is owned by Milton Keynes City Council and managed by Milton Keynes Parks Trust.
Briery Wood Heronry is a 5.7-hectare (14-acre) biological Site of Special Scientific Interest in the grounds of Belvoir Castle in Leicestershire.
Bradgate Park and Cropston Reservoir is a 399.7-hectare (988-acre) geological Site of Special Scientific Interest north–west of Leicester. It is also a Nature Conservation Review site, and Bradgate Park contains Geological Conservation Review sites and a Scheduled Monument.
King Lud's Entrenchments and The Drift is a 23.9 hectares biological Site of Special Scientific Interest which straddles the border between Lincolnshire and Leicestershire, and is east of Croxton Kerrial. King Lud's Entrenchments is a Scheduled Ancient Monument.
Arundel Park is a 134-hectare (330-acre) biological Site of Special Scientific Interest north of Arundel in West Sussex.
