| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 558.5 | 97 | 1960 - 2006 |
| Calke Abbey NT, Derbyshire | England: Mid | 165 | 453.9 | 74 | 1998 - 2004 |
| Buddon Wood (total), Leicestershire (with Rutland) | England: Mid | 124 | 447.6 | 36 | < 1988 |
| Glen Affric, East Inverness-shire | Scotland | 66 | 448.5 | 9 | < 2014 |
| Forest of Dean, West Gloucestershire | England: Mid | 89 | 438.2 | 34 | 1965 - 1998 |
| Danbury Common & Danbury Park, South Essex | England: South | 109 | 431.2 | 41 | 1976 - 2009 |
| 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 |
| Bradgate Park (total), Leicestershire (with Rutland) | England: Mid | 84 | 363.1 | 25 | < 1998 |
| Allt-yr-esgair, Breconshire | Wales | 57 | 331.6 | 17 | < 2000 |
| Ashton Court, North Somerset | England: South-West | 79 | 321.5 | 21 | < 2002 |
| Ashenbank Wood, West Kent | England: South | 57 | 312.3 | 14 | < 2014 |
| Bradgate Park (pre 1970), Leicestershire (with Rutland) | England: Mid | 44 | 306.8 | 11 | < 1970 |
| Bowcastle Farm Orchards, Worcestershire | England: Mid | 50 | 382.0 | 14 | < 2005 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 148 | 522.3 | 77 | < 2014 |
| 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 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 384.6 | 22 | < 1998 |
| Longdon Marsh, Worcestershire | England: Mid | 57 | 668.4 | 36 | 2000 - 2002 |
| Lullingstone Park, West Kent | England: South | 105 | 486.7 | 46 | < 1977 |
| Monkfield Wood, Cambridgeshire | England: South | 27 | 285.2 | 3 | < 1998 |
| Mottisfont Abbey, South Hampshire | England: South | 36 | 488.9 | 21 | < 1998 |
| 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 |
| Pipers Hill, Worcestershire | England: Mid | 43 | 493.0 | 21 | < 2003 |
| River Soar, Leicestershire (with Rutland) | England: Mid | 67 | 361.2 | 11 | < 1980 |
| Rotherfield Park, North Hampshire | England: South | 121 | 343.8 | 28 | 2002 |
| Savernake Forest, South Wiltshire | England: South-West | 111 | 484.7 | 58 | < 2004 |
| Short Wood, Northamptonshire | England: Mid | 93 | 341.9 | 13 | < 1999 |
| Woolmer Forest, North Hampshire | England: South | 97 | 325.8 | 21 | 1950 - 2003 |
| Dunham Massey Park (Greater), Cheshire | England: Mid | 84 | 315.5 | 27 | < 1992 |
| White Rocks, Herefordshire | England: Mid | 43 | 325.6 | 9 | 2002 - 2003 |
| Rug, Merionethshire | Wales | 47 | 227.7 | 5 | < 1994 |
| Croome Park, Worcestershire | England: Mid | 110 | 628.2 | 62 | < 1999 |
| Epping Forest, South Essex | England: South | 254 | 601.6 | 128 | < 1979 |
| Ashtead Common, Surrey | England: South | 220 | 586.8 | 89 | < 1998 |
| Shrubland Estate, East Suffolk | England: South | 91 | 554.9 | 47 | 1975 - 2005 |
| Bookham Common (total), Surrey | England: South | 209 | 543.1 | 82 | < 2001 |
| 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 |
| Mersham Hatch Estate, East Kent | England: South | 115 | 488.7 | 43 | < 1998 |
| Cambourne Woods, Cambridgeshire | England: South | 39 | 487.2 | 12 | < 1998 |
| The Mens, West Sussex | England: South | 139 | 478.4 | 54 | < 2010 |
| Denham Marsh Wood, Buckinghamshire | England: South | 47 | 472.3 | 16 | 2008 |
| Hainault Forest, South Essex | England: South | 94 | 447.9 | 41 | 1970 - 2007 |
| Sydenham Hill & Dulwich Woods, Surrey | England: South | 53 | 432.1 | 16 | 1993 - 2000 |
| Buxted Park, East Sussex | England: South | 135 | 424.4 | 43 | < 1999 |
| Chiddingfold Woods, Surrey | England: South | 164 | 418.9 | 42 | < 2003 |
| Cobham Park, West Kent | England: South | 88 | 409.1 | 37 | < 1998 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 404.9 | 58 | < 2014 |
| Bedford Purlieus Wood NNR, Huntingdonshire | England: Mid | 68 | 385.3 | 16 | 1970 - 1995 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 382.7 | 57 | < 1999 |
| Bramshott Chase, Surrey | England: South | 138 | 367.4 | 37 | 1998 - 2003 |
| Ash Ranges, Surrey | England: South | 121 | 362.8 | 31 | 1997 - 2003 |
| Downham Woodland Walk, West Kent | England: South | 46 | 354.3 | 14 | 2002 |
| Kennet Floodplain, Berkshire | England: South | 124 | 350.8 | 22 | 2003 |
| Cwrt-yr-ala, Castell Coch, Glamorganshire | Wales | 76 | 347.4 | 16 | < 1935 |
| Clytha Park, Monmouthshire | Wales | 48 | 352.1 | 17 | 1997 - 2002 |
| Eridge Park, East Sussex | England: South | 80 | 345.0 | 24 | < 1999 |
| Bentley Park Wood, Warwickshire | England: Mid | 62 | 317.7 | 15 | < 2000 |
| Erddig, Denbighshire | Wales | 67 | 316.4 | 15 | < 1999 |
| 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 |
| Clay Vallet Wood, Herefordshire | England: Mid | 58 | 312.1 | 14 | 2002 - 2003 |
| Brilley Green Dingle, Herefordshire | England: Mid | 61 | 311.5 | 14 | < 2014 |
| Lawn Wood & Tortoiseshell Wood, South Lincolnshire | England: Mid | 49 | 302.0 | 11 | < 1998 |
| Coed Gwaenydd Bach, Glamorganshire | Wales | 42 | 290.5 | 15 | < 1993 |
| Old Cilgwyn, Cardiganshire | Wales | 64 | 268.8 | 13 | < 1998 |
| Parc Pont-faen, Cardiganshire | Wales | 45 | 260.0 | 11 | < 2002 |
| Gregynog, Montgomeryshire | Wales | 69 | 239.1 | 13 | < 1996 |
| Llanerchaeron Hall, Cardiganshire | Wales | 22 | 259.1 | 4 | 1991 - 2002 |
| Coedmore NNR, Cardiganshire | Wales | 28 | 285.7 | 5 | < 1998 |
| Coedydd Aber, Caernarvonshire | Wales | 35 | 234.3 | 3 | < 1998 |
| Bishopston Valley, Glamorganshire | Wales | 31 | 241.9 | 3 | 1994 - 2002 |
| Windsor Forest, Berkshire | England: South | 364 | 850.0 | 251 | < 1998 |
| Forest of Bere, South Hampshire | England: South | 108 | 509.3 | 39 | < 1975 |
| Pamber Forest & Silchester Common, North Hampshire | England: South | 53 | 498.1 | 24 | 1988 - 2005 |
| Gibside, County Durham | England: North | 83 | 389.2 | 13 | < 1992 |
| Denny Wood, South Hampshire | England: South | 27 | 318.5 | 9 | 2002 |
| Badger Wood, Cambridgeshire | England: South | 29 | 465.5 | 7 | < 1998 |
| Donington Park (total), Leicestershire (with Rutland) | England: Mid | 122 | 450.0 | 48 | 1971 - 2014 |
| Donington Park (<1994), Leicestershire (with Rutland) | England: Mid | 79 | 451.9 | 36 | < 1994 |
| Trent Valley , Nottinghamshire | England: Mid | 101 | 366.3 | 30 | 1997 - 2015 |
| Stowe, Buckinghamshire | England: South | 106 | 550.9 | 55 | 1990 - 2015 |
| Kemerton Estate, Worcestershire | England: Mid | 171 | 518.7 | 65 | 1992 - 2014 |
| Auchinleck Estate, Ayrshire | Scotland | 39 | 264.1 | 7 | 2013 - 2016 |
| Burley Wood, Leicestershire (with Rutland) | England: Mid | 72 | 288.9 | 13 | < 1988 |
| Buddon Wood (post 1980), Leicestershire (with Rutland) | England: Mid | 79 | 329.1 | 15 | 1980 - 1988 |
| Burley-on-the-Hill Estate, Leicestershire (with Rutland) | England: Mid | 90 | 327.8 | 23 | 1988 - 2016 |
| Croome Estate, Worcestershire | England: Mid | 175 | 697.7 | 109 | 1995 - 2016 |
| Shotover Hill, Oxfordshire | England: South | 155 | 518.7 | 71 | 1999 - 2017 |
| Wyre Forest , Worcestershire | England: Mid | 126 | 490.5 | 43 | 1980 - 2017 |
| Gunby Park, North Lincolnshire | England: Mid | 18 | 350.0 | 5 | < 2017 |
| 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 |
| Thorneythwaite, Cumberland | England: North | 50 | 324.0 | 7 | 2017 |
| Beningbrough Parkland, North-east Yorkshire | England: North | 68 | 322.1 | 16 | 1987 - 2019 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 185 | 573.0 | 77 | 1976 - 2019 |
| Grace Dieu Wood, Leicestershire (with Rutland) | England: Mid | 39 | 235.9 | 9 | 1927 - 2012 |
| Woodwalton Fen NNR, Huntingdonshire | England: Mid | 57 | 407.0 | 15 | 1961 - 2019 |
| Dinton Pastures, Berkshire | England: South | 128 | 560.2 | 42 | 2012 - 2020 |
| Felbrigg Hall Estate (NT), East Norfolk | England: South | 135 | 407.4 | 51 | 1988 - 2018 |
| 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 |
| Auchinleck Estate, Ayrshire | Scotland | 41 | 253.7 | 8 | 2000 - 2021 |
| East Chatteris, Cambridgeshire | England: South | 63 | 352.4 | 13 | 2015 |
| Tugford Wood Pasture, Shropshire | England: Mid | 65 | 404.6 | 26 | 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 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 433.5 | 83 | 1993 - 2018 |
| Little Doward Wood, West Gloucestershire | England: Mid | 80 | 435.0 | 39 | 2004 - 2021 |
| Danesbury Park, Welwyn, Hertfordshire | England: South | 48 | 333.3 | 12 | 2000 - 2022 |
| Holmwood, Surrey | England: South | 46 | 293.5 | 9 | 2015 - 2022 |
| Rutland Water Nature Reserve, Leicestershire (with Rutland) | England: Mid | 68 | 254.4 | 9 | 2021 - 2022 |
| 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