| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 500.0 | 96 | 1960 - 2006 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| 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 |
| Lullingstone Park, West Kent | England: South | 105 | 473.3 | 42 | < 1977 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 415.9 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 200 | < 2000 |
| Savernake Forest, South Wiltshire | England: South-West | 111 | 436.9 | 50 | < 2004 |
| Site A, Evesham, Worcestershire | England: Mid | 73 | 472.6 | 40 | < 1996 |
| Staverton Park, East Suffolk | England: South | 106 | 412.3 | 48 | < 1986 |
| Richmond Park (total), Surrey | England: South | 253 | 628.5 | 157 | 1950 - 2006 |
| Moccas Park, Herefordshire | England: Mid | 239 | 566.5 | 138 | < 1998 |
| Cowdray Park, West Sussex | England: South | 121 | 526.4 | 58 | 2011 |
| Epping Forest, South Essex | England: South | 252 | 544.4 | 128 | < 1979 |
| Box Hill, Surrey | England: South | 225 | 552.0 | 67 | < 1997 |
| Hainault Forest, South Essex | England: South | 94 | 409.6 | 41 | 1970 - 2007 |
| Blean Woods Complex, East Kent | England: South | 50 | 294.0 | 14 | < 1999 |
| Mill Bank, Penallt, Monmouthshire | Wales | 43 | 297.7 | 9 | < 2014 |
| Penallt Woods, Monmouthshire | Wales | 57 | 291.2 | 11 | 2007 - 2013 |
| Wyelands, Monmouthshire | Wales | 28 | 378.6 | 15 | 1994 - 1999 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 254 | < 1998 |
| Denny Wood, South Hampshire | England: South | 27 | 340.7 | 9 | 2002 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 535.1 | 110 | 1980 - 2006 |
| Cobham Woods NT, West Kent | England: South | 70 | 368.6 | 30 | 2014 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 437.1 | 74 | 1992 - 2014 |
| Hanbury Park, Worcestershire | England: Mid | 58 | 501.7 | 26 | 1998 - 2016 |
| Croome Estate, Worcestershire | England: Mid | 175 | 597.1 | 109 | 1995 - 2016 |
| Haughmond Hill, Shropshire | England: Mid | 55 | 265.5 | 12 | 2009 - 2017 |
| Hatfield Forest, North Essex | England: South | 245 | 568.6 | 138 | 1986 - 2018 |
| Flatford Mill and Dedham Vale (NT), East Suffolk | England: South | 74 | 437.8 | 19 | 1995 - 2020 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 355.0 | 57 | 1988 - 2019 |
| Dunham Massey Park (2021), Cheshire | England: Mid | 89 | 377.5 | 45 | 2021 |
| Little Doward Wood, West Gloucestershire | England: Mid | 80 | 402.5 | 36 | 2004 - 2021 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 497.7 | 74 | 1986 - 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 156 | 530.8 | 92 | 1990 - 2022 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 158 | 1950 - 2021 |
| Thorndon Park SSSI, South Essex | England: South | 66 | 553.0 | 47 | 2023 |
| Tyntesfield (NT), North Somerset | England: South-West | 61 | 260.7 | 11 | 2010 - 2022 |
| 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 |
| Horner Woods NNR, South Somerset | England: South-West | 88 | 306.8 | 27 | 1998 - 2015 |
| 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 |
| Danbury Common (NT) & Danbury Park, South Essex | England: South | 120 | 417.5 | 40 | 1976 - 2019 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 503.4 | 52 | 1992 - 2024 |
| Burnham Beeches (s.s.), Buckinghamshire | England: South | 263 | 592.0 | 154 | < 2022 |
Saproxylic Quality Index