| Buddon Wood (total), Leicestershire (with Rutland) | England: Mid | 124 | 411.3 | 36 | < 1988 |
| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 394.6 | 42 | < 2000 |
| Swanton Novers, West Norfolk | England: South | 95 | 335.8 | 32 | 1981 - 2010 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 372.9 | 70 | 1994 - 2003 |
| Bradgate Park (post 1980), Leicestershire (with Rutland) | England: Mid | 55 | 383.6 | 22 | 1981 - 1998 |
| Bradgate Park (total), Leicestershire (with Rutland) | England: Mid | 84 | 356.0 | 29 | < 1998 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Wicken Fen, Cambridgeshire | England: South | 131 | 437.4 | 42 | 1978 - 2013 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 351.2 | 25 | < 1998 |
| Longleat, South Wiltshire | England: South-West | 46 | 280.4 | 11 | 1994 - 2004 |
| Lullingstone Park, West Kent | England: South | 105 | 464.8 | 42 | < 1977 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 414.0 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| River Soar, Leicestershire (with Rutland) | England: Mid | 66 | 295.5 | 12 | < 1980 |
| Sandall Beat, South-west Yorkshire | England: North | 64 | 264.1 | 5 | < 2000 |
| Scadbury Park, West Kent | England: South | 71 | 319.7 | 17 | < 1998 |
| Short Wood, Northamptonshire | England: Mid | 93 | 305.4 | 14 | < 1999 |
| Silwood Park, Berkshire | England: South | 159 | 605.0 | 86 | 1998 - 1999 |
| Staverton Park, East Suffolk | England: South | 106 | 416.0 | 48 | < 1986 |
| Moccas Park, Herefordshire | England: Mid | 239 | 576.6 | 138 | < 1998 |
| Epping Forest, South Essex | England: South | 252 | 560.3 | 128 | < 1979 |
| Arundel Park, West Sussex | England: South | 130 | 475.4 | 53 | < 1999 |
| Esher Commons (total), Surrey | England: South | 234 | 498.3 | 84 | < 2002 |
| Box Hill, Surrey | England: South | 225 | 550.7 | 67 | < 1997 |
| Stanford PTA, West Norfolk | England: South | 183 | 414.8 | 74 | 1980 - 2009 |
| Drayton Copse, Oxfordshire | England: South | 76 | 339.5 | 19 | < 1999 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 362.8 | 57 | < 1999 |
| Hutchin's Copse, Oxfordshire | England: South | 78 | 334.6 | 16 | < 1999 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 336.5 | 37 | 1984 - 2004 |
| Clay Vallet Wood, Herefordshire | England: Mid | 58 | 286.2 | 11 | 2002 - 2003 |
| Penrice Castle, Glamorganshire | Wales | 19 | 194.7 | 3 | 1994 |
| Hayling Way, River Cam, Cambridgeshire | England: South | 36 | 422.2 | 12 | < 1997 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 435.3 | 74 | 1992 - 2014 |
| Buddon Wood (post 1980), Leicestershire (with Rutland) | England: Mid | 79 | 308.9 | 14 | 1980 - 1988 |
| Hanbury Park, Worcestershire | England: Mid | 58 | 501.7 | 26 | 1998 - 2016 |
| Shotover Hill, Oxfordshire | England: South | 155 | 434.8 | 71 | 1999 - 2017 |
| Gunby Park, North Lincolnshire | England: Mid | 18 | 305.6 | 2 | < 2017 |
| Dartington Hall Estate, South Devon | England: South-West | 89 | 351.7 | 14 | 2010 - 2017 |
| Hatfield Forest, North Essex | England: South | 245 | 591.4 | 138 | 1986 - 2018 |
| Castle Drogo (NT), South Devon | England: South-West | 79 | 392.4 | 35 | 1996 - 2016 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 186 | 525.8 | 81 | 1976 - 2019 |
| Felbrigg Hall Estate (NT), East Norfolk | England: South | 135 | 376.3 | 45 | 1988 - 2018 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 543.6 | 110 | 1986 - 2020 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 515.9 | 85 | 1988 - 2020 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 396.4 | 79 | 1993 - 2018 |
| Cwrt-yr-ala, Glamorganshire | Wales | 43 | 441.9 | 7 | < 1997 |
| Oxburgh Hall, West Norfolk | England: South | 96 | 459.4 | 36 | 2013 - 2022 |
| 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 |
| Oxburgh Hall (NT), West Norfolk | England: South | 63 | 436.5 | 20 | 2006 - 2018 |
Saproxylic Quality Index