| Forest of Dean, West Gloucestershire | England: Mid | 89 | 438.2 | 34 | 1965 - 1998 |
| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 425.8 | 41 | < 2000 |
| Swanton Novers, West Norfolk | England: South | 95 | 420.0 | 36 | 1981 - 2010 |
| Cobham & Ashenbank Woods, West Kent | England: South | 105 | 395.2 | 42 | < 1998 |
| Cranborne Chase, South Wiltshire | England: South-West | 45 | 362.2 | 8 | 1994 - 2004 |
| Allt-yr-esgair, Breconshire | Wales | 57 | 331.6 | 17 | < 2000 |
| Ashton Court, North Somerset | England: South-West | 79 | 321.5 | 21 | < 2002 |
| Wicken Fen, Cambridgeshire | England: South | 131 | 485.5 | 33 | 1978 - 2013 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 707.5 | 152 | 1996 - 2013 |
| Hylands Park (Total), South Essex | England: South | 74 | 289.2 | 14 | 1967 - 2003 |
| Lea & Pagets Wood, Herefordshire | England: Mid | 55 | 285.5 | 5 | 2003 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 384.6 | 22 | < 1998 |
| Hylands Park (2000-03), South Essex | England: South | 61 | 313.1 | 14 | 2000 - 2003 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 459.9 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 326 | 857.1 | 207 | < 2000 |
| Nupend Wood, Herefordshire | England: Mid | 46 | 376.1 | 18 | 2002 - 2003 |
| Oyster Wood, Surrey | England: South | 117 | 406.8 | 24 | < 1993 |
| The Oaks, Kingston Lacy, Dorset | England: South-West | 72 | 276.4 | 11 | 2000 - 2001 |
| Rotherfield Park, North Hampshire | England: South | 121 | 343.8 | 28 | 2002 |
| Short Wood, Northamptonshire | England: Mid | 93 | 341.9 | 13 | < 1999 |
| Silwood Park, Berkshire | England: South | 159 | 685.5 | 90 | 1998 - 1999 |
| Cirencester Park, East Gloucestershire | England: Mid | 76 | 309.2 | 28 | < 1999 |
| White Rocks, Herefordshire | England: Mid | 43 | 325.6 | 9 | 2002 - 2003 |
| Parham Park, West Sussex | England: South | 81 | 621.0 | 42 | 1983 - 2012 |
| Arundel Park, West Sussex | England: South | 130 | 546.9 | 54 | < 1999 |
| Bookham Common (total), Surrey | England: South | 209 | 543.1 | 82 | < 2001 |
| Esher Commons (total), Surrey | England: South | 234 | 530.8 | 84 | < 2002 |
| Box Hill, Surrey | England: South | 225 | 530.7 | 71 | < 1997 |
| Ebernoe Common, West Sussex | England: South | 141 | 513.5 | 56 | < 2011 |
| Hatchlands Park, Surrey | England: South | 164 | 506.1 | 73 | < 2002 |
| Bookham Common (post-1980), Surrey | England: South | 176 | 500.0 | 66 | 1980 - 2001 |
| Stanford PTA, West Norfolk | England: South | 183 | 489.1 | 74 | 1980 - 2009 |
| Cambourne Woods, Cambridgeshire | England: South | 39 | 487.2 | 12 | < 1998 |
| The Mens, West Sussex | England: South | 139 | 478.4 | 54 | < 2010 |
| Chiddingfold Woods, Surrey | England: South | 164 | 418.9 | 42 | < 2003 |
| Cobham Park, West Kent | England: South | 88 | 409.1 | 37 | < 1998 |
| Drayton Copse, Oxfordshire | England: South | 76 | 396.1 | 19 | < 1999 |
| Bedford Purlieus Wood NNR, Huntingdonshire | England: Mid | 68 | 385.3 | 16 | 1970 - 1995 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 382.7 | 57 | < 1999 |
| Hutchin's Copse, Oxfordshire | England: South | 78 | 369.2 | 18 | < 1999 |
| Bramshott Chase, Surrey | England: South | 138 | 367.4 | 37 | 1998 - 2003 |
| Kennet Floodplain, Berkshire | England: South | 124 | 350.8 | 22 | 2003 |
| Llanover Park, Monmouthshire | Wales | 118 | 345.8 | 37 | < 1996 |
| The Devenish, South Wiltshire | England: South-West | 74 | 344.6 | 17 | 1994 - 2004 |
| Stansted Woodlands & Veteran Trees, North Essex | England: South | 43 | 316.3 | 7 | < 2014 |
| Priory Wood, Monmouthshire | Wales | 44 | 311.4 | 9 | < 2014 |
| Piercefield Park, Monmouthshire | Wales | 43 | 316.3 | 14 | < 1999 |
| Glasbury, River Wye, Radnorshire | Wales | 25 | 344.0 | 9 | < 1999 |
| Grange Farm, Chigwell, South Essex | England: South | 29 | 600.0 | 14 | < 1999 |
| Windsor Forest, Berkshire | England: South | 364 | 850.0 | 251 | < 1998 |
| Forest of Bere, South Hampshire | England: South | 108 | 509.3 | 39 | < 1975 |
| Esher Commons (post 1980), Surrey | England: South | 172 | 405.8 | 56 | 1980 - 2002 |
| Badger Wood, Cambridgeshire | England: South | 29 | 465.5 | 7 | < 1998 |
| Trent Valley , Nottinghamshire | England: Mid | 101 | 366.3 | 30 | 1997 - 2015 |
| Cobham Woods NT, West Kent | England: South | 70 | 437.1 | 33 | 2014 |
| Stowe, Buckinghamshire | England: South | 106 | 550.9 | 55 | 1990 - 2015 |
| Brockworth Great Park, East Gloucestershire | England: Mid | 36 | 530.6 | 16 | 2000 |
| Kemerton Estate, Worcestershire | England: Mid | 171 | 518.7 | 65 | 1992 - 2014 |
| Croome Estate, Worcestershire | England: Mid | 175 | 697.7 | 109 | 1995 - 2016 |
| Polesden Lacy & Ranmore Common NT, Surrey | England: South | 49 | 255.1 | 6 | 1996 - 2011 |
| Brockhampton Estate (NT), Herefordshire | England: Mid | 62 | 580.6 | 32 | 1984 - 2016 |
| Dartington Hall Estate, South Devon | England: South-West | 89 | 384.3 | 14 | 2010 - 2017 |
| Hatfield Forest, North Essex | England: South | 246 | 694.7 | 147 | 1986 - 2018 |
| Abney Park Cemetery, Middlesex | England: South | 81 | 600.0 | 33 | 2006 - 2018 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 185 | 573.0 | 77 | 1976 - 2019 |
| Dinton Pastures, Berkshire | England: South | 128 | 560.2 | 42 | 2012 - 2020 |
| Sherrardspark Wood SSSI, Hertfordshire | England: South | 89 | 464.0 | 44 | 2008 - 2020 |
| Sharpenhoe (NT), Bedfordshire | England: South | 54 | 246.3 | 8 | 1986 - 2020 |
| Ham Lands, Surrey | England: South | 52 | 461.5 | 16 | 2016 - 2021 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 603.4 | 119 | 1986 - 2020 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 733.9 | 143 | 1970 - 2021 |
| Bainton Heath, Northamptonshire | England: Mid | 64 | 398.4 | 13 | 2011 |
| Birchall & Holwell Park Woods, Hertfordshire | England: South | 66 | 328.8 | 8 | 2014 - 2015 |
| Rutland Water Nature Reserve, Leicestershire (with Rutland) | England: Mid | 58 | 281.0 | 9 | 2021 - 2022 |
| Rutland Water, Leicestershire (with Rutland) | England: Mid | 58 | 281.0 | 9 | 2021 - 2022 |
| Petworth Deer Park (NT), West Sussex | England: South | 194 | 561.9 | 86 | 1988 - 2020 |
| Rutland Water Nature Reserve, Leicestershire (with Rutland) | England: Mid | 68 | 254.4 | 9 | 2021 - 2022 |
| Capstone, East Kent | England: South | 58 | 263.8 | 9 | 2000 - 2021 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 583.0 | 78 | 1986 - 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 157 | 608.9 | 96 | 1990 - 2022 |
Saproxylic Quality Index