| Buddon Wood (total), Leicestershire (with Rutland) | England: Mid | 124 | 411.3 | 36 | < 1988 |
| Swanton Novers, West Norfolk | England: South | 95 | 335.8 | 32 | 1981 - 2010 |
| Cranborne Chase, South Wiltshire | England: South-West | 45 | 291.1 | 7 | 1994 - 2004 |
| Ashton Court, North Somerset | England: South-West | 79 | 283.5 | 23 | < 2002 |
| Coed Nant Llolwyn, Cardiganshire | Wales | 46 | 247.8 | 2 | < 1998 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 629.0 | 141 | 1996 - 2013 |
| Hylands Park (Total), South Essex | England: South | 74 | 254.1 | 13 | 1967 - 2003 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 351.2 | 25 | < 1998 |
| Hylands Park (2000-03), South Essex | England: South | 61 | 270.5 | 13 | 2000 - 2003 |
| Lullingstone Park, West Kent | England: South | 105 | 464.8 | 42 | < 1977 |
| Monkfield Wood, Cambridgeshire | England: South | 27 | 244.4 | 3 | < 1998 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| Rotherfield Park, North Hampshire | England: South | 121 | 315.7 | 27 | 2002 |
| Short Wood, Northamptonshire | England: Mid | 93 | 305.4 | 14 | < 1999 |
| Snelsmore Common, Berkshire | England: South | 71 | 216.9 | 9 | 2003 |
| Woolmer Forest, North Hampshire | England: South | 97 | 305.2 | 16 | 1950 - 2003 |
| Langley Park, Buckinghamshire | England: South | 152 | 686.2 | 110 | 1979 - 2008 |
| Richmond Park (total), Surrey | England: South | 253 | 644.3 | 157 | 1950 - 2006 |
| Moccas Park, Herefordshire | England: Mid | 239 | 576.6 | 138 | < 1998 |
| Cowdray Park, West Sussex | England: South | 121 | 543.0 | 58 | 2011 |
| Epping Forest, South Essex | England: South | 252 | 560.3 | 128 | < 1979 |
| Hampton Court Park, Middlesex | England: South | 87 | 524.1 | 41 | 2011 - 2013 |
| Cliveden NT, Buckinghamshire | England: South | 71 | 501.4 | 33 | 2008 |
| Shrubland Estate, East Suffolk | England: South | 91 | 512.1 | 38 | 1975 - 2005 |
| Arundel Park, West Sussex | England: South | 130 | 475.4 | 53 | < 1999 |
| Bookham Common (total), Surrey | England: South | 208 | 475.5 | 84 | < 2001 |
| Icklingham Plains Area, West Suffolk | England: South | 75 | 469.3 | 31 | 1976 - 1997 |
| Esher Commons (total), Surrey | England: South | 234 | 498.3 | 84 | < 2002 |
| Box Hill, Surrey | England: South | 225 | 550.7 | 67 | < 1997 |
| Ebernoe Common, West Sussex | England: South | 141 | 507.1 | 53 | < 2011 |
| Bookham Common (post-1980), Surrey | England: South | 176 | 441.5 | 61 | 1980 - 2001 |
| Mersham Hatch Estate, East Kent | England: South | 115 | 421.7 | 39 | < 1998 |
| Cambourne Woods, Cambridgeshire | England: South | 39 | 392.3 | 10 | < 1998 |
| The Mens, West Sussex | England: South | 139 | 441.0 | 56 | < 2010 |
| Denham Marsh Wood, Buckinghamshire | England: South | 47 | 404.3 | 16 | 2008 |
| Chiddingfold Woods, Surrey | England: South | 164 | 371.3 | 37 | < 2003 |
| Highgate Wood, Middlesex | England: South | 107 | 404.7 | 36 | < 2002 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 372.7 | 58 | < 2014 |
| Hutchin's Copse, Oxfordshire | England: South | 78 | 334.6 | 16 | < 1999 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 336.5 | 37 | 1984 - 2004 |
| Bramshott Chase, Surrey | England: South | 138 | 329.0 | 34 | 1998 - 2003 |
| Ash Ranges, Surrey | England: South | 121 | 331.4 | 25 | 1997 - 2003 |
| Kennet Floodplain, Berkshire | England: South | 124 | 353.2 | 20 | 2003 |
| Clytha Park, Monmouthshire | Wales | 48 | 329.2 | 16 | 1997 - 2002 |
| Mill Bank, Penallt, Monmouthshire | Wales | 43 | 297.7 | 9 | < 2014 |
| Penallt Woods, Monmouthshire | Wales | 57 | 291.2 | 11 | 2007 - 2013 |
| Priory Wood, Monmouthshire | Wales | 44 | 288.6 | 9 | < 2014 |
| Piercefield Park, Monmouthshire | Wales | 43 | 286.0 | 12 | < 1999 |
| Merthyr Mawr, Glamorganshire | Wales | 31 | 248.4 | 5 | < 1998 |
| Hayling Way, River Cam, Cambridgeshire | England: South | 36 | 422.2 | 12 | < 1997 |
| Coedydd Aber, Caernarvonshire | Wales | 35 | 234.3 | 3 | < 1998 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Denny Wood, South Hampshire | England: South | 27 | 329.6 | 9 | 2002 |
| Esher Commons (post 1980), Surrey | England: South | 172 | 366.3 | 47 | 1980 - 2002 |
| Badger Wood, Cambridgeshire | England: South | 29 | 344.8 | 7 | < 1998 |
| Kingston Lacy Park, Dorset | England: South-West | 64 | 406.3 | 26 | 2004 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 539.0 | 110 | 1980 - 2006 |
| Trent Valley , Nottinghamshire | England: Mid | 101 | 330.7 | 26 | 1997 - 2015 |
| Smithy Wood, South-west Yorkshire | England: North | 12 | 150.0 | 2 | 2013 - 2014 |
| Brockworth Great Park, East Gloucestershire | England: Mid | 36 | 469.4 | 15 | 2000 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 435.3 | 74 | 1992 - 2014 |
| Shotover Hill, Oxfordshire | England: South | 155 | 434.8 | 71 | 1999 - 2017 |
| Dartington Hall Estate, South Devon | England: South-West | 89 | 351.7 | 14 | 2010 - 2017 |
| Lanhydrock Estate (NT), East Cornwall | England: South-West | 65 | 315.4 | 23 | < 2008 |
| Castle Drogo (NT), South Devon | England: South-West | 79 | 392.4 | 35 | 1996 - 2016 |
| Thorneythwaite, Cumberland | England: North | 50 | 358.0 | 6 | 2017 |
| Woodwalton Fen NNR, Huntingdonshire | England: Mid | 57 | 333.3 | 16 | 1961 - 2019 |
| Sharpenhoe (NT), Bedfordshire | England: South | 54 | 227.8 | 6 | 1986 - 2020 |
| Birchall & Holwell Park Woods, Hertfordshire | England: South | 65 | 289.2 | 8 | 2014 - 2015 |
| Wye Valley Woods SAC, Monmouthshire | Wales | 132 | 456.1 | 49 | 1994 - 2018 |
| Little Doward Wood, West Gloucestershire | England: Mid | 80 | 408.8 | 36 | 2004 - 2021 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 506.8 | 74 | 1986 - 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 156 | 551.3 | 92 | 1990 - 2022 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 620.3 | 158 | 1950 - 2021 |
| Ashtead Common NNR, Surrey | England: South | 282 | 635.1 | 161 | < 2023 |
| Burnham Beeches, Buckinghamshire | England: South | 263 | 599.6 | 154 | < 2022 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 640.1 | 175 | < 2022 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 633.9 | 140 | 1970 - 2021 |
| Rutland Water Nature Reserve, Leicestershire (with Rutland) | England: Mid | 68 | 244.1 | 8 | 2021 - 2022 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 525.6 | 90 | 1986 - 2023 |
| Wicken Fen (NT), Cambridgeshire | England: South | 152 | 451.3 | 59 | 1980 - 2023 |
Saproxylic Quality Index