| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 500.0 | 96 | 1960 - 2006 |
| Calke Abbey NT, Derbyshire | England: Mid | 165 | 422.4 | 74 | 1998 - 2004 |
| Ashton Court, North Somerset | England: South-West | 79 | 297.5 | 23 | < 2002 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 620.4 | 141 | 1996 - 2013 |
| Hylands Park (Total), South Essex | England: South | 74 | 258.1 | 13 | 1967 - 2003 |
| Hylands Park (2000-03), South Essex | England: South | 61 | 275.4 | 13 | 2000 - 2003 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 415.9 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 200 | < 2000 |
| Short Wood, Northamptonshire | England: Mid | 93 | 295.7 | 14 | < 1999 |
| Silwood Park, Berkshire | England: South | 159 | 613.2 | 86 | 1998 - 1999 |
| Site A, Evesham, Worcestershire | England: Mid | 73 | 472.6 | 40 | < 1996 |
| Staverton Park, East Suffolk | England: South | 106 | 412.3 | 48 | < 1986 |
| Ulverscroft, Leicestershire (with Rutland) | England: Mid | 47 | 206.4 | 10 | < 1998 |
| White Rocks, Herefordshire | England: Mid | 43 | 344.2 | 9 | 2002 - 2003 |
| Richmond Park (total), Surrey | England: South | 253 | 628.5 | 157 | 1950 - 2006 |
| Arundel Park, West Sussex | England: South | 130 | 458.5 | 53 | < 1999 |
| Esher Commons (total), Surrey | England: South | 234 | 493.2 | 84 | < 2002 |
| Hatchlands Park, Surrey | England: South | 164 | 401.2 | 64 | < 2002 |
| Stanford PTA, West Norfolk | England: South | 183 | 416.9 | 74 | 1980 - 2009 |
| The Mens, West Sussex | England: South | 139 | 463.3 | 56 | < 2010 |
| Highgate Wood, Middlesex | England: South | 107 | 408.4 | 36 | < 2002 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 378.3 | 58 | < 2014 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 350.4 | 37 | 1984 - 2004 |
| Mill Bank, Penallt, Monmouthshire | Wales | 43 | 297.7 | 9 | < 2014 |
| Penallt Woods, Monmouthshire | Wales | 57 | 291.2 | 11 | 2007 - 2013 |
| Piercefield Park, Monmouthshire | Wales | 43 | 288.4 | 12 | < 1999 |
| Livox Wood, Monmouthshire | Wales | 19 | 300.0 | 6 | 2013 |
| Wyelands, Monmouthshire | Wales | 28 | 378.6 | 15 | 1994 - 1999 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 254 | < 1998 |
| Castle Eden Dene, County Durham | England: North | 32 | 325.0 | 3 | < 1974 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 437.1 | 74 | 1992 - 2014 |
| Burley-on-the-Hill Estate, Leicestershire (with Rutland) | England: Mid | 90 | 303.3 | 19 | 1988 - 2016 |
| Perivale Wood, Middlesex | England: South | 53 | 475.5 | 17 | 2013 - 2016 |
| Shotover Hill, Oxfordshire | England: South | 155 | 441.3 | 71 | 1999 - 2017 |
| Hatfield Forest, North Essex | England: South | 245 | 568.6 | 138 | 1986 - 2018 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 355.0 | 57 | 1988 - 2019 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 500.5 | 85 | 1988 - 2020 |
| Wye Valley Woods SAC, Monmouthshire | Wales | 132 | 448.5 | 49 | 1994 - 2018 |
| Sheringham Park (NT), East Norfolk | England: South | 88 | 326.1 | 25 | 1987 - 2022 |
| Clumber Park (NT), Nottinghamshire | England: Mid | 177 | 422.0 | 75 | 1990 - 2023 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 158 | 1950 - 2021 |
| Stowe (NT, School and Golf Course), Buckinghamshire | England: South | 142 | 511.3 | 69 | < 2023 |
| Ashtead Common NNR, Surrey | England: South | 282 | 633.7 | 161 | < 2023 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 624.6 | 175 | < 2022 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 613.8 | 140 | 1970 - 2021 |
| Barnes Common, Surrey | England: South | 81 | 550.6 | 40 | 2020 - 2024 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 498.0 | 90 | 1986 - 2023 |
| Wicken Fen (NT), Cambridgeshire | England: South | 152 | 447.4 | 59 | 1980 - 2023 |
| Burnham Beeches (s.s.), Buckinghamshire | England: South | 263 | 592.0 | 154 | < 2022 |
| Dyffryn Gardens, Glamorganshire | Wales | 58 | 341.4 | 22 | 2023 - 2024 |
Saproxylic Quality Index