| The Lizard NNR | 1558.39 ha | | — |
| Goss Moor Nature Reserve | 462.42 ha | | — |
| Mount Edgcumbe Country Park | 187.54 ha | | — |
| Red Moor | 93.87 ha | | — |
| Goss Moor Nature Reserve | 93.09 ha | | — |
| Golitha Falls NNR | 77.43 ha | | — |
| Helman Tor Cornwall Wildlife Trust | 59.22 ha | | — |
| Breney Common Cornwall Wildlife Trust | 57.6 ha | | — |
| Greena Moor Nature Reserve. | 54.68 ha | | — |
| The Lost Gardens of Heligan | 40.65 ha | | — |
| "The Moors" | 30.8 ha | | — |
| The Beacon | 27.81 ha | | — |
| Prideaux Wood Nature Reserve Cornwall Wildlife Trust | 24.9 ha | 🐕 | — |
| Treglith Manor | 20.74 ha | | — |
| Walmsley Bird Sanctuary | 20.61 ha | | — |
| Ropehaven Cliffs Nature Reserve Cornwall Wildlife Trust | 12.54 ha | | — |
| Forest Holidays Deerpark Forest Holidays | 12.32 ha | 🐕 | — |
| Trengwainton Gardens National Trust | 11.95 ha | | — |
| Eden Project | 11.63 ha | | — |
| Tuckingmill Valley Park | 11.23 ha | | — |
| Shirehall Moor | 11.17 ha | | — |
| Lowerton Moor | 10.88 ha | | — |
| Tremenheere Sculpture Gardens | 10.23 ha | | — |
| Trebah Garden | 9.56 ha | | — |
| Middle Amble Marsh | 9.23 ha | | — |
| Glendurgan Garden National Trust | 9.04 ha | | — |
| Pinetum Gardens | 8.55 ha | | — |
| Penjerrick Garden | 8.41 ha | | — |
| The Lawns Thanckes Park | 8.17 ha | | — |
| Halbullock Nature Reserve | 7.53 ha | | — |
| Gwithian Green Local Nature Reserve | 7.04 ha | | — |
| Trewithen Gardens | 6.91 ha | | — |
| Heartlands | 6.73 ha | | — |
| Pencarrow Gardens | 6.58 ha | | — |
| Trewidden Garden | 6.43 ha | | — |
| Trelissick Garden National Trust | 6.3 ha | | — |
| Wooldown | 6.19 ha | | — |
| Burngullow Common | 5.93 ha | | — |
| Saltmill Park | 5.91 ha | | — |
| Lanjeth Nursery & Water Gardens | 5.32 ha | 🐕 | — |
| Trelissick Garden (detached) | 5.09 ha | | — |
| Kemyel Crease Cornwall Wildlife Trust | 4.75 ha | | — |
| Bonython Estate Gardens | 4.73 ha | | — |
| Penrose Amenity Area | 4.63 ha | | — |
| Penlee Park | 4.57 ha | | — |
| The Downs | 4.44 ha | | — |
| Formal Gardens | 4.17 ha | | — |
| Coronation Park | 3.88 ha | | — |
| Coronation Park and Boating Lake | 3.81 ha | | — |
| American Garden | 3.8 ha | | — |
| Sylvia's Meadow | 3.77 ha | | — |
| Trenance Gardens | 3.28 ha | | — |
| Carnanton Estate Gardens | 2.95 ha | | — |
| Illogan Park | 2.88 ha | | — |
| The Earl's Garden | 2.88 ha | | — |
| Kimberley Park | 2.67 ha | | — |
| Philip Varcoe Playing Fields | 2.44 ha | | — |
| Princess May recreation ground | 2.43 ha | | — |
| Tincombe Park | 2.43 ha | | — |
| Goss Moor Nature Reserve | 2.31 ha | | — |
| Grenville Gardens Recreation Ground | 2.31 ha | | — |
| Manningham Woods | 2.31 ha | | — |
| Longstone Park | 2.14 ha | | — |
| Victoria Gardens | 2.07 ha | | — |
| Bolitho Gardens | 2.03 ha | | — |
| Coronation Park | 2.01 ha | | — |
| Launceston Castle | 1.98 ha | | — |
| The Pleasure Place Calstock Council | 1.98 ha | | — |
| Poltair Park | 1.96 ha | 🐕 | — |
| East End Park | 1.89 ha | | — |
| Carwinion Garden | 1.81 ha | | — |
| Millpond Gardens/Ropeworks | 1.81 ha | | — |
| Priory Park | 1.73 ha | | — |
| Borlaze Park | 1.59 ha | | — |
| Sculpture Park | 1.58 ha | | — |
| East Lawn | 1.56 ha | | — |
| Morrab Gardens | 1.52 ha | | — |
| The Beacon | 1.5 ha | | — |
| Tywardreath Marsh Nature Reserve | 1.48 ha | | — |
| Trenoweth Playing Field | 1.47 ha | | — |
| Penrose Water Gardens | 1.44 ha | | — |
| Potager Garden | 1.41 ha | | — |
| Coulson's Park | 1.38 ha | | — |
| Victoria Park | 1.36 ha | | — |
| Threemilestone Playing Fields | 1.35 ha | | — |
| Bucket Hill National Trust | 1.34 ha | | — |
| Grampound Road Park and Playing Field | 1.32 ha | | — |
| Camborne Park | 1.31 ha | | — |
| Hayle Recreation Ground | 1.29 ha | | — |
| Palemon Best recreation ground St Ives Town Council | 1.28 ha | | — |
| Playing Field | 1.26 ha | | — |
| Summercourt Fairfield | 1.23 ha | | — |
| Windmill Hill Park | 1.23 ha | | — |
| Ellis Park | 1.22 ha | | — |
| Hendra Park | 1.22 ha | | — |
| Roskear Park | 1.19 ha | | — |
| Wheal Jubilee Parc (Millennium Green) | 1.16 ha | | — |
| Dadubuz Moor | 1.11 ha | | — |
| Linear Park | 1.11 ha | | — |
| Coronation Gardens | 1.09 ha | | — |
| St Erth Pits | 1.08 ha | | — |
| Moorfield Park | 1.07 ha | | — |
| Martins park | 1.06 ha | | — |
| The Fairfield | 1.06 ha | | — |
| Boscawen Park | 1.02 ha | | — |
| Navy Estate Park | 1.01 ha | | — |
| Hidden Valley Gardens | 0.81 ha | | — |
| Lamorran Gardens | 0.68 ha | | — |
| The Planation Hayle Town Council | 0.58 ha | | — |
| Cemetery Park Cornwall Council | 0.57 ha | | — |
| Gunwalloe Playing Field The Gunwalloe Playing Field Committee | 0.57 ha | | — |
| Blisland Village Green Parish Council | 0.55 ha | | — |
| Headland Garden | 0.47 ha | | — |
| Gyllyngdune Gardens Falmouth Town Council | 0.43 ha | | — |
| Minack Theatre | 0.43 ha | | — |
| The Garden Terraces | 0.35 ha | | — |
| Penmount Natural Burial Ground | 0.22 ha | | — |
| Devichoys Wood Nature Reserve | — | | — |
| Polcoombe | — | | — |
| The Lizard - Caerthillian National Nature Reserve Natural England | — | | — |