| Studland to Portland Special Area of Conservation | 33196.02 ha | | — |
| Purbeck Coast Marine Conservation Zone | 28209.26 ha | | — |
| National Trust - Purbeck National Trust | 564.55 ha | | — |
| Fontmell and Melbury Downs SAC National Trust | 274.35 ha | | — |
| Upton Heath Nature Reserve | 231.11 ha | | — |
| Kingston Lacy Estate National Trust | 182.44 ha | | — |
| Durlston National Nature Reserve | 130.07 ha | | — |
| Winfrith Heath Nature Reserve | 104.51 ha | | — |
| Pentridge Down | 94.24 ha | | — |
| Higher Hyde Heath Nature Reserve | 84.24 ha | | — |
| Valley of Stones | 72.59 ha | | — |
| Winfrith & Tadnoll Nature Reserve | 62.41 ha | | — |
| Mays Wood | 62.27 ha | | — |
| Canford Park SANG | 47.79 ha | | — |
| Knighton Reserve SANG Habitat First Group | 45.98 ha | | — |
| Coombe Heath Nature Reserve | 44.45 ha | | — |
| RSPB Garston Wood RSPB | 34.14 ha | | — |
| Tout Quarry Reserve & Sculpture Park | 18.22 ha | | — |
| Bestwall Park | 16.67 ha | | — |
| Townsend Reserve | 15.34 ha | | — |
| Kilwood Coppice Nature Reserve Dorset Wildlife Trust | 15.2 ha | | — |
| Alners Gorse | 14.71 ha | | — |
| The Milldown | 14.63 ha | | — |
| Bytheway Field | 14.39 ha | | — |
| Wareham Common | 13.36 ha | | — |
| Coney's Castle Hill Fort | 12.79 ha | | — |
| Stour Meadows | 12.74 ha | | — |
| King Barrow Quarries Reserve | 12.52 ha | | — |
| Slop Bog | 12.2 ha | | — |
| The Great Field | 11.58 ha | | — |
| Potterne Park | 11.04 ha | | — |
| Stephen's Castle | 11.03 ha | | — |
| Lodmoor Country Park | 9.28 ha | | — |
| King George's Charity Field | 7.39 ha | | — |
| Broadcroft Quarry Butterfly Reserve | 7.34 ha | | — |
| Nothe Gardens | 7.34 ha | | — |
| Dewlands Common | 6.94 ha | | — |
| John Procter Memorial Ground | 6.35 ha | | — |
| Holmwood Park SANG | 5.74 ha | | — |
| Chickerell Downs | 5.5 ha | | — |
| Days Park | 5.48 ha | | — |
| Dewlands Common | 5.14 ha | | — |
| Corfe Castle National Trust | 5.03 ha | | — |
| Radipole Park | 5.01 ha | | — |
| Bothenhampton Nature Reserve | 4.5 ha | | — |
| Slopes Farm | 3.76 ha | | — |
| Stalbridge Recreation Area | 3.52 ha | | — |
| Fryer Field Recreation Ground | 3.48 ha | | — |
| Girt Field | 3.39 ha | | — |
| Bennetts Water Gardens | 3.37 ha | | — |
| Cranborne Manor Cranborne Estate | 3.37 ha | | — |
| The Quarr | 3.31 ha | | — |
| Milldown Extension | 2.64 ha | | — |
| Mead | 2.59 ha | | — |
| Borough Gardens | 2.36 ha | | — |
| St. Mary's Playing Field | 2.36 ha | | — |
| Crendle Court | 2.27 ha | | — |
| Corfe Mullen Meadows | 2.25 ha | | — |
| Kings Road Park | 2.19 ha | | — |
| Colehill Triangle (Woodland) | 2.06 ha | | — |
| The Kitchen Garden | 1.94 ha | | — |
| Ford Lane Recreation Ground | 1.88 ha | | — |
| Northmoor Park | 1.87 ha | | — |
| Verwood Recreation Ground | 1.85 ha | | — |
| Radipole Gardens | 1.81 ha | | — |
| Sidling | 1.71 ha | | — |
| Horton Road Village Green St Leonards and St Ives Parish Council | 1.64 ha | | — |
| Victoria Gardens | 1.63 ha | | — |
| Lister Gardens | 1.57 ha | | — |
| Salisbury Fields | 1.47 ha | | — |
| The Walled Garden, Moreton | 1.39 ha | | — |
| The Big Yellow Bus Garden Project | 1.37 ha | | — |
| Knoll Gardens | 1.25 ha | | — |
| Purcombe Hill | 1.25 ha | | — |
| West Parley Recreation Ground | 1.24 ha | | — |
| Walled Garden | 1.19 ha | | — |
| Careys Secret Garden | 1.15 ha | | — |
| Langmoor Gardens | 1.06 ha | | — |
| Little Mead | 1.06 ha | | — |
| The Hayricks Arne Parish Council | 0.94 ha | | — |
| Riverside Reserve | 0.68 ha | | — |
| Millennium Park | 0.57 ha | | — |
| Upwey Wishing Well Upwey Wishing Well | 0.57 ha | | — |
| Abbey Close Sherborne Town Council | 0.43 ha | | — |
| Mosterton Park | 0.4 ha | | — |
| Corfe Castle Model Village | 0.27 ha | | — |
| God's Pocket CH PCC, leased from the Lulworth Estate | 0.24 ha | | — |
| Horn Park Quarry fossils https://ukfossils.co.uk/2003/05/02/horn-park-quarry/ | 0.23 ha | | — |
| Avon Heath Country Park (South park) | — | | — |
| Minterne Gardens | — | | — |
| Moors Valley Country Park | — | | — |