| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 500.0 | 96 | 1960 - 2006 |
| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 409.7 | 42 | < 2000 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 380.0 | 70 | 1994 - 2003 |
| Croxton Park, Leicestershire (with Rutland) | England: Mid | 51 | 290.2 | 18 | < 1988 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 200 | < 2000 |
| Oyster Wood, Surrey | England: South | 117 | 401.7 | 24 | < 1993 |
| Epping Forest, South Essex | England: South | 252 | 544.4 | 128 | < 1979 |
| Abernethy Estate, East Inverness-shire | Scotland | 142 | 678.2 | 18 | < 1994 |
| Box Hill, Surrey | England: South | 225 | 552.0 | 67 | < 1997 |
| Bentley Park Wood, Warwickshire | England: Mid | 62 | 277.4 | 12 | < 2000 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 254 | < 1998 |
| Ayr Gorge, Ayrshire | Scotland | 57 | 319.3 | 12 | 1960 - 2020 |
| Old Wood of Drum, South Aberdeenshire | Scotland | 21 | 371.4 | 9 | 2023 - 2024 |
| Old Wood of Drum, Channel Islands | England: South | 21 | 371.4 | 9 | 2023 - 2024 |
Saproxylic Quality Index