The Borough of Welwyn Hatfield is a local government district in southern Hertfordshire, England, governed by Welwyn Hatfield Borough Council.
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.
Epsom Common is a 177.4-hectare (438-acre) Local Nature Reserve in Epsom in Surrey. It is owned and managed by Epsom and Ewell Borough Council. It is part of Epsom and Ashtead Commons, a Site of Special Scientific Interest.
Welwyn Hatfield Borough Council is the local authority for the Welwyn Hatfield non-metropolitan district of England, the United Kingdom. Welwyn Hatfield is located in the centre of Hertfordshire, in the East of England region. The Council itself is based in Welwyn Garden City, the largest settlement in the district.
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.
Bennett's Hole is a 1.2 hectare Local Nature Reserve in Mitcham in the London Borough of Merton. According to the Natural England details page about the site, it is owned by Merton Council and managed by the council and London Wildlife Trust, but it is not shown on the Trust's list of reserves.
The Spinney, Carshalton is a 0.4 hectare local nature reserve in Carshalton in the London Borough of Sutton, England. It is owned by Sutton Council and managed by the council and Sutton Nature Conservation Volunteers. It used to be managed by the London Wildlife Trust.
Northaw Great Wood is a 223.6 hectare 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.
Mardley Heath is a 41.1 hectare Local Nature Reserve in Welwyn in Hertfordshire. It is owned by Welwyn Hatfield Borough Council and managed by the council together with the Friends of Mardley Heath.
Howe Dell is a 4 hectare Local Nature Reserve in Hatfield in Hertfordshire. The declaring authority is Welwyn Hatfield Borough Council. The site is woodland which runs along both sides of a stream with steep sides. The main trees are hornbeam, oak and beech. There is access from Honeysuckle Gardens.
Oxleys Wood is a 1.2 hectare Local Nature Reserve in Hatfield in Hertfordshire. The declaring authority is Welwyn Hatfield Borough Council. The wood floods in wet weather, particularly the northern part, which has a pond. Tree species include oak, ash, elm and willow, and they provide a habitat for insects which provide food for birds.
Stanborough Reedmarsh is a 3.3 hectare Local Nature Reserve in Welwyn Garden City in Hertfordshire. It is owned by Welwyn Hatfield Borough Council and managed by the Herts and Middlesex Wildlife Trust.
Shrubhill Common is a 9.8 hectare Local Nature Reserve in Hemel Hempstead in Hertfordshire. It is owned and managed by Dacorum Borough Council. The site is common land, and it is part of the Chilterns Area of Outstanding Natural Beauty.
The Commons is 13.2 hectare Local Nature Reserve in Welwyn Garden City in Hertfordshire. It is owned and managed by Welwyn Hatfield Borough Council.
Danesbury Park is a 24.5 hectare public park and Local Nature Reserve in Welwyn in Hertfordshire. It is owned and managed by Welwyn Hatfield Borough Council.
Harebreaks Wood is 5.1 hectare Local Nature Reserve in Watford in Hertfordshire. It is owned by Watford Borough Council and managed by the council and the Friends of Harebreaks Wood.
The Lairage Land is a 4.4 hectare Local Nature Reserve in Watford in Hertfordshire. It is owned and managed by Watford Borough Council.
The Marshes is a 2.2-hectare (5.4-acre) Local Nature Reserve south of Swallowfield in Berkshire. It is owned and managed by Swallowfield Parish Council.
