| Ashton Court Estate | 307.4 ha | | — |
| Tyntesfield National Trust | 217.2 ha | | — |
| Leigh Woods | 196.61 ha | | — |
| Weston Woods | 129.29 ha | | — |
| Prior's Wood | 63.7 ha | | — |
| Weston Big Wood | 48.61 ha | | — |
| Portbury Wharf Nature Reserve | 48.01 ha | | — |
| Clapton Moor Nature Reserve Avon Wildlife Trust | 40.06 ha | 🐕 | — |
| Felton Common | 36.22 ha | | — |
| Ashcombe Park | 13.35 ha | | — |
| Eastwood and Battery Point Local Nature Reserve | 11.69 ha | | — |
| Portishead Town and Village Green Portishead Town Council | 10.44 ha | | — |
| Lake Grounds | 9.78 ha | | — |
| Haywood Village Superpond | 9.57 ha | | — |
| Parkland Arboretum | 8.57 ha | | — |
| Pill Foreshore | 8.27 ha | | — |
| Castle Batch | 8.21 ha | | — |
| Clarence Park | 6.79 ha | | — |
| Kilkenny Fields | 6.53 ha | | — |
| Portishead Ecology Park | 5.91 ha | | — |
| Strode Road Recreation Ground | 5.59 ha | | — |
| Bucklands Pool/Backwell Lake | 5.53 ha | | — |
| Trendlewood Park North Somerset Council, Friends of Trendlewood Park | 5.45 ha | | — |
| Golden Valley Playing Fields | 5.42 ha | | — |
| Hangstones yatton parish council | 5.09 ha | | — |
| Blake's Pools Nature Reserve Avon Wildlife Trust | 4.74 ha | | — |
| Beach Lawns Weston-Super-Mare Town Council | 4.58 ha | | — |
| Merlin Park | 4.31 ha | | — |
| Grove Park | 4.24 ha | | — |
| Lynch Farm | 4.21 ha | | — |
| Millennium Park | 3.74 ha | | — |
| Clarence Park | 3.71 ha | | — |
| Marshalls Field | 3.22 ha | | — |
| Salthouse Field | 2.94 ha | | — |
| Ellenborough Park | 2.92 ha | | — |
| Blackdown Road Park | 2.7 ha | | — |
| Moorend Spout Nature Reserve Nailsea Environment and Wildlife Trust | 2.41 ha | | — |
| Peel Park | 2.38 ha | | — |
| Congresbury Millennium Green | 1.89 ha | 🐕 | — |
| Kenn Hedge North Somerset Council, Friends of Trendlewood Park | 1.79 ha | 🐕 | — |
| The Vale Park | 1.66 ha | | — |
| Middle Hill Common | 1.49 ha | | — |
| Herbert Gardens | 1.43 ha | | — |
| Battery Point | 1.41 ha | | — |
| Tyntesfield Lower Gardens | 1.41 ha | | — |
| Flower Show Field | 1.4 ha | | — |
| Brookside North Somerset Council | 1.29 ha | | — |
| Woodspring Wallet HTR | 1.25 ha | | — |
| Rock Road Park | 1.13 ha | | — |
| Jubilee Park North Somerset Council | 0.98 ha | | — |
| Alexandra Gardens | 0.82 ha | | — |
| The Organic Garden | 0.74 ha | | — |
| Village Quarter Open Space | 0.69 ha | | — |
| Prince Consort Gardens | 0.68 ha | | — |
| Wildlife Corridor | 0.66 ha | | — |
| Parade Park | 0.64 ha | | — |
| The Glebe | 0.62 ha | | — |
| Phoenix Park | 0.6 ha | | — |
| Sunhill Park | 0.57 ha | | — |
| Pill Paddock Avon Wildlife Trust | 0.53 ha | | — |
| Pier Copse | 0.43 ha | | — |
| Old Farmhouse North Somerset Council / Friends of Trendlewood Park | 0.4 ha | 🐕 | — |
| Alexandra Parade Gardens | 0.35 ha | | — |
| Kitchen Garden | 0.35 ha | | — |
| Bibury Hedge North Somerset Council, Friends of Trendlewood Park | 0.34 ha | | — |
| Shrubbery Park | 0.32 ha | | — |
| Barrow Gurney Village Green Barrow Gurney Parish Council | 0.3 ha | 🐕 | — |
| Broadcroft Play Area | 0.3 ha | | — |
| North Weston Park | 0.24 ha | | — |
| Nailsea Glassworks | 0.23 ha | | — |
| Stockway North Nature Reserve | 0.22 ha | | — |
| Nore Farm | 0.21 ha | | — |
| Chipping Cross Park | 0.2 ha | | — |
| Heaven's Field | 0.19 ha | | — |
| Trinity Park | 0.19 ha | | — |
| Harbour Edge Park | 0.18 ha | | — |
| Fitzroy Circus | 0.17 ha | | — |
| Rodmoor Rose Gardens | 0.17 ha | | — |
| Jesmond Road Park | 0.16 ha | | — |
| Spanish Steps Portishead in Bloom | 0.16 ha | | — |
| Tyntesfield Croquet Lawn | 0.15 ha | | — |
| Lockside Square | 0.14 ha | | — |
| St Peter's Church Garden St Peters Church | 0.14 ha | | — |
| Rose Garden | 0.12 ha | | — |
| The Park | 0.12 ha | | — |
| Rose Garden | 0.1 ha | | — |
| Worle Moor Road Park Area | 0.09 ha | | — |
| London Square | 0.06 ha | | — |
| Jill's Garden | 0.04 ha | | — |
| Bourneville Chocolate Garden | 0.03 ha | | — |
| Sensory Garden | 0.03 ha | | — |
| Living Sculpture Park | 0.02 ha | | — |
| Play and adventure area (Bike Park) | 0.01 ha | | — |
| River park | — | | — |
| Saint George's Flower Bank | — | | — |
| Tickenham Hill Nature Reserve Avon Wildlife Trust | — | | — |
| Weston Moor Nature Reserve Avon Wildlife Trust | — | | — |