Norsey Wood is a 67.2-hectare (166-acre) biological Site of Special Scientific Interest in Billericay, Essex. It is also a Local Nature Reserve and a Scheduled Monument.
Ashridge Commons and Woods is a 640.1 hectare biological Site of Special Scientific Interest in Buckinghamshire and Hertfordshire. It is located in Little Gaddesden, and is part of the National Trust Ashridge Estate in the Chilterns Area of Outstanding Natural Beauty.
King's Wood is an area of ancient woodland in the parish of Heath and Reach in Bedfordshire, England. The wood lies north of the village of Heath and Reach and east of Great Brickhill and with neighboring Bakers Wood forms the largest area of ancient woodland in Bedfordshire. Much of the wood lies within Kings Wood and Rushmere National Nature Reserve, jointly owned and managed by the Greensand Trust, Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire, Central Bedfordshire Council and Tarmac Aggregates. Kings Wood and many parts of the National Nature Reserve are part of a Site of Special Scientific Interest named Kings and Bakers Woods and Heaths, which also includes Rammamere Heath in Buckinghamshire and Shire Oak Heath in Bedfordshire.
Wormley-Hoddesdonpark Wood South is a 192.5 hectares is a biological site of Special Scientific Interest near Cheshunt in Hertfordshire. It is part of Broxbourne Woods National Nature Reserve, and is listed in A Nature Conservation Review. Wormley Wood is owned and managed by the Woodland Trust. The site is also a Special Area of Conservation.
Wormley-Hoddesdonpark Wood North is a 143.9-hectare (356-acre) woodland area in Hertfordshire which has been designated as a biological site of Special Scientific Interest. The site is listed as Grade 1 in A Nature Conservation Review, and is also designated a Special Area of Conservation. It is in Hoddesdon in the borough of Broxbourne, but part of the site is in East Hertfordshire.
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.
Hollowhill and Pullingshill Woods is a 23-hectare biological Site of Special Scientific Interest near Marlow in Buckinghamshire. It is in the Chilterns Area of Outstanding Natural Beauty, and the Chilterns Beechwoods Special Area of Conservation. The local planning authorities are Wycombe District Council and Buckinghamshire County Council. Pullingshill Wood is owned by the Woodland Trust, and Hollowhill Wood was formerly owned by Buckinghamshire County Council, but was transferred to the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Since November 2015 the 7.8-hectare site has been managed by the Trust as "Hog and Hollowhill Woods".
Millfield Wood is a 9.5-hectare (23-acre) biological Site of Special Scientific Interest north of High Wycombe in Buckinghamshire. It is owned and managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust, and it is in the Chilterns Areas of Outstanding Natural Beauty.
Widdenton Park Wood is a 23.5-hectare (58-acre) Site of Special Scientific Interest west of High Wycombe in Buckinghamshire. It is on the site of a medieval deer park going back to the fourteenth century, and most of it is in the Chilterns Area of Outstanding Natural Beauty.
Danbury Ridge Nature Reserves are a group of nature reserves totalling 101 hectares near Danbury in Essex, England. They are managed by the Essex Wildlife Trust, and most of them are in Sites of Special Scientific Interest (SSSIs). Two areas, the Backwarden and Hitchcock's Meadow, are part of Danbury Common SSSI, and Woodham Walter Common, Birch Wood, Pheasanthouse Wood, Poors Piece, Scrubs Wood, and a small area in Pheasanthouse Farm, are part of Woodham Walter Common SSSI.
Garnetts Wood and Barnston Lays is a 25 hectare biological Site of Special Scientific Interest two miles south of Great Dunmow in Essex. It is owned and managed by Essex County Council "for quiet public recreation".
Aston Rowant Woods is a 209.7-hectare (518-acre) biological Site of Special Scientific Interest near Aston Rowant in Oxfordshire and Buckinghamshire. Part of it is in Aston Rowant National Nature Reserve, and a large part is in the Chiltern Beechwoods Special Area of Conservation. The site is also in the Chilterns Area of Outstanding Natural Beauty.
Great Wood and Dodd's Grove is a 36.8-hectare (91-acre) biological Site of Special Scientific Interest in Leigh-on-Sea in Essex. It is also a Local Nature Reserve called Belfairs. Essex Wildlife Trust runs the Belfairs Woodland Centre and manages the site together with Southend-on-Sea City Council.
Sheephouse Wood is a 56.9-hectare (141-acre) biological Site of Special Scientific Interest east of Charndon in Buckinghamshire.
Rodbed Wood is a 2.2-hectare (5.4-acre) biological Site of Special Scientific Interest in Medmenham in Buckinghamshire. It is in the Chilterns Area of Outstanding Natural Beauty.
Quendon Wood is a 32.1-hectare (79-acre) biological Site of Special Scientific Interest in Quendon in Essex.
Roman River is a 275.6-hectare (681-acre) biological Site of Special Scientific Interest (SSSI) south of Colchester in Essex. Two areas, Friday Wood and Donyland Wood, were formerly separate SSSIs.
Stour and Copperas Woods, Ramsey is a 77.1-hectare (191-acre) biological Site of Special Scientific Interest between Wrabness and Ramsey in Essex. It is two separate areas, Stour Wood, which is owned by the Woodland Trust and managed by the Royal Society for the Protection of Birds, and Copperas Wood, which is owned and managed by the Essex Wildlife Trust. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Combwell Wood is a 110.6-hectare (273-acre) biological Site of Special Scientific Interest south-east of Tunbridge Wells in Kent. The wood is part of the High Weald Area of Outstanding Natural Beauty. It is divided into 36 sections owned by different people.
Cow Wood and Harry's Wood is a 75.5-hectare (187-acre) biological Site of Special Scientific Interest east of Handcross in West Sussex. it is in the High Weald Area of Outstanding Natural Beauty.
