Roding Valley Meadows is an 18.9-hectare (47-acre) biological Site of Special Scientific Interest in Buckhurst Hill in Essex. It is part of a 65.2 hectare Local Nature Reserve with the same name, which is owned by Epping Forest District Council and Grange Farm Trust, and managed by the Essex Wildlife Trust.
Cranham Marsh is a 15.3 hectare Local Nature Reserve and a Site of Metropolitan Importance for Nature Conservation in Cranham in the London Borough of Havering. It is owned by Havering Council and managed by the Essex Wildlife Trust.
Hunsdon Mead is a 34 hectare biological Site of Special Scientific Interest (SSSI) west of Harlow and east of Roydon in Essex. The site is partly in Essex and partly in Hertfordshire, and it is jointly owned and managed by the Essex Wildlife Trust and the Herts and Middlesex Wildlife Trust. The SSSI also includes part of the neighbouring Roydon Mead. The planning authorities are East Hertfordshire District Council and Epping Forest District Council. Hunsdon Mead is registered common land.
Sawbridgeworth Marsh is a 6.3-hectare (16-acre) biological Site of Special Scientific Interest (SSSI) near Sawbridgeworth in Hertfordshire, apart from a small area in the north which is in Essex. It is managed by the Essex Wildlife Trust. The planning authorities are East Hertfordshire District Council and Uttlesford District Council.
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.
Grays Thurrock Chalk Pit is a 17.3-hectare (43-acre) Site of Special Scientific Interest in Grays in Essex. It is part of Chafford Gorges Nature Park, which is managed by the Essex Wildlife Trust.
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.
Aubrey Buxton Nature Reserve is a 9.7-hectare (24-acre) nature reserve west of Elsenham in Essex. It was donated to the Essex Wildlife Trust by Aubrey Buxton and his wife in 1976.
Belcher's and Broadfield Woods is a 14.4-hectare (36-acre) biological Site of Special Scientific Interest between Halstead and Braintree in Essex. It is managed by the Essex Wildlife Trust as the Brookes Nature Reserve.
West Wood is a 23.6 hectares biological Site of Special Scientific Interest in Little Sampford, north of Thaxted in northwestern Essex. It is owned and managed by the Essex Wildlife Trust.
Oxley Meadow is a 3.2-hectare (7.9-acre) nature reserve in Tolleshunt Knights, near Tiptree in Essex. It is managed by the Essex Wildlife Trust.
Thrift Wood is a 19.4-hectare (48-acre) biological Site of Special Scientific Interest south-east of Bicknacre in Essex. It is managed by the Essex Wildlife Trust.
Tiptree Heath is a 25 hectare biological Site of Special Scientific Interest south-west of Tiptree in Essex, England. It is managed by the Essex Wildlife Trust together with the Friends of Tiptree Heath.
Grove House Wood is a 2.2 hectare Local Nature Reserve in Stanford-le-Hope in Essex. According to Natural England, it is owned by Thurrock Council and managed by Essex Wildlife Trust but it is not listed on the web site of either body.
Chigborough Lakes is an 18.6-hectare (46-acre) nature reserve in Maldon in Essex. It is managed by the Essex Wildlife Trust.
Horndon Meadow is a 0.8-hectare (2.0-acre) nature reserve north of Stanford-le-Hope in Essex. It is managed by the Essex Wildlife Trust.
Langdon Nature Reserve is a 210 hectare nature reserve west of Basildon in Essex. It is managed by the Essex Wildlife Trust, and forms part of the Langdon Ridge Site of Special Scientific Interest.
Maldon Wick is a 6.1-hectare (15-acre) nature reserve in Maldon in Essex. It is managed by the Essex Wildlife Trust.
Phyllis Currie Nature Reserve is an 8.9-hectare (22-acre) nature reserve north-west of Great Leighs in Essex. It is owned and managed by the Essex Wildlife Trust.
Shotgate Thickets is a 3.2-hectare (7.9-acre) nature reserve east of Wickford in Essex. It is managed by the Essex Wildlife Trust.
