Ingrebourne Valley is a local nature reserve (LNR) in Hornchurch in the London Borough of Havering. It is owned and managed by Havering Council, and has a visitor centre managed by the Essex Wildlife Trust. Most of it is in Hornchurch Country Park west of the River Ingrebourne, but there are also areas north and south of the park which are part of the LNR. It has a wide range of habitats, including woodland, grassland, the river and marshes. It is an important site for a range of species of plants, animals and birds, including great crested newts, slow worms, the harvest mouse and the water vole.
Railway Fields is a Local Nature Reserve and a Site of Borough Importance for Nature Conservation, Grade I, in Harringay the London Borough of Haringey. About one hectare in area, it was a railway goods yard until 1967.
Stanmore Country Park is a 30.7-hectare (76-acre) public park, Local Nature Reserve and Site of Metropolitan Importance for Nature Conservation in Stanmore in the London Borough of Harrow. It is owned and managed by Harrow London Borough Council.
Scratchwood is an extensive, mainly wooded, country park in Mill Hill in the London Borough of Barnet. The 57-hectare site is a Site of Metropolitan Importance for Nature Conservation and together with the neighbouring Moat Mount Open Space. It is a Local Nature Reserve.
Oak Hill Wood is a 10-hectare Local Nature Reserve (LNR) and a Site of Borough Importance for Nature Conservation Grade I, in East Barnet, London. It is owned by the London Borough of Barnet, and part of it is a 5.5-hectare nature reserve managed by the London Wildlife Trust.
Riddlesdown Common or Riddlesdown is a 43 hectare area of green space in Kenley, towards the northern end of the North Downs in the London Borough of Croydon. It is owned and maintained by the City of London Corporation, apart from two small areas, one of which is operated by the London Wildlife Trust and the other by Croydon Council. An area of 32 hectares is a biological Site of Special Scientific Interest. The name Riddlesdown also applies to the local district of residential housing. A trig point at the site indicates that it is 525 ft (160 m) above sea level.
Covert Way is the only Local Nature Reserve in the London Borough of Enfield. It is also part of the Hadley Wood Golf Course and Covert Way Field Site of Borough Importance for Nature Conservation, Grade I, and it has an area of 7 hectares. It is on the southern border of Enfield between the road named Covert Way and Monken Hadley Common in Barnet.
Ham Lands is a 72-hectare Local Nature Reserve and Site of Metropolitan Importance for Nature Conservation in Ham in the London Borough of Richmond upon Thames and the Royal Borough of Kingston upon Thames.
Beam Valley Country Park is a 74-hectare park in Dagenham in the London Borough of Barking and Dagenham. Most of it is designated as a Local Nature Reserve (LNR) called Beam Valley, but a narrow strip next to the River Beam south from Western Avenue is a separate LNR called Beam Valley. The park is also designated as two Sites of Borough Importance for Nature Conservation, Grade 1, one north and the other south of South Dagenham Road.
Bedfont Lakes Country Park is a 72.5-hectare Local Nature Reserve and Site of Metropolitan Importance for Nature Conservation in Bedfont in the London Borough of Hounslow.
Morden Park is a 50-hectare (120-acre) public park and Site of Borough Importance for Nature Conservation, Grade 1, in the district of Morden Park in the London Borough of Merton. Of this, 28 hectares is a Local Nature Reserve. It is owned and managed by Merton Council. It includes Morden Park House.
Crossness Nature Reserve is a 25.5 hectare local nature reserve in Crossness in the London Borough of Bexley. It is part of the Erith Marshes Site of Metropolitan Importance for Nature Conservation. The site is next to Crossness Sewage Works, and is owned and managed by Thames Water.
Hutchinson's Bank is 21.8 hectare Local Nature Reserve and Site of Metropolitan Importance for Nature Conservation in New Addington in the London Borough of Croydon. It is owned by Croydon Council and managed by the London Wildlife Trust.
Foxley Wood is an 11.36 hectare Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade 1, in Purley in the London Borough of Croydon. It is owned and managed by Croydon Council. The site was purchased by Coulsdon and Purley Urban District Council under the Green Belt Act in the 1930s.
Ruffett Wood and Big Wood are adjoining woods with a total area of 7 hectares on the border of the London Borough of Sutton, close to the village of Woodmansterne. Big Wood is to the south and Ruffett Wood is to the north. They are owned by Sutton Council and managed by the Woodland Trust. They are designated a Local Nature Reserve and a Site of Borough Importance for Nature Conservation, Grade 1. The woods are the largest continuous area of woodland in the borough of Sutton.
Devonshire Avenue Nature Area is a 0.4 hectare Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade II, in South Sutton in the London Borough of Sutton. It is owned by Sutton Council and managed by the Council and Sutton Nature Conservation Volunteers.
Belmont Pastures is a 1.3 hectare Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade II, in Belmont in the London Borough of Sutton. It is owned by Sutton Council and managed by the council together with Sutton Nature Conservation Volunteers.
Cuddington Meadows is a 1.4 hectare Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade I, in Belmont in the London Borough of Sutton. It is owned by Sutton Council and managed by the council together with Sutton Nature Conservation Volunteers.
Bonesgate Open Space is a public park, Local Nature Reserve (LNR) and Site of Borough Importance for Nature Conservation, Grade 1, in Chessington in the Royal Borough of Kingston upon Thames in London. It has an area of 5.07 hectares, and was designated an LNR in 1994.
