| Fen Drayton Lakes Nature Reserve RSPB | 399.68 ha | | — |
| Wimpole Estate National Trust | 331.53 ha | | — |
| Ouse Fen Nature Reserve RSPB | 180.31 ha | | — |
| Coton Countryside Reserve Cambridge Past, Present & Future | 113.29 ha | | — |
| Magog Down | 67.28 ha | | — |
| Ouse Fen Nature Reserve RSPB | 64.47 ha | | — |
| Wandlebury Country Park | 64.2 ha | | — |
| Cambourne Nature Reserve The Wildlife Trust | 40.66 ha | | — |
| RSPB Fowlmere Nature Reserve RSPB | 40.6 ha | | — |
| Fulbourn Fen NR | 36.01 ha | | — |
| Milton Country Park | 35.9 ha | | — |
| Trumpington Meadows Country Park | 23.56 ha | | — |
| Great Wilbraham Common | 22.99 ha | | — |
| Coton Countryside Reserve Cambridge Past, Present & Future | 18.99 ha | | — |
| Overhall Grove Bedfordshire, Cambridgeshire, Northamptonshire and Peterborough Wildlife Trust | 18.55 ha | | — |
| Mare Fen | 17.09 ha | | — |
| Landbeach Lakes | 15.63 ha | | — |
| Hardwick Wood The Wildlife Trust | 15.0 ha | | — |
| Northstowe Phase 2 Water Park | 13.35 ha | | — |
| Northstowe Phase 1 Water Park | 12.63 ha | | — |
| Beechwoods | 9.95 ha | | — |
| Lower Wood NR | 9.89 ha | | — |
| Foxton Wood | 8.49 ha | | — |
| Shepreth L-Moor Nature Reserve | 7.93 ha | | — |
| Wetlands Nature Reserve Wellcome Trust | 6.89 ha | 🐕 | — |
| Brook Leys | 6.0 ha | | — |
| Worts Meadow | 5.74 ha | | — |
| Stockbridge Meadows Nature Reserve | 5.14 ha | | — |
| Knapwell Plantation | 4.7 ha | | — |
| Byron's Pool Local Nature Reserve | 4.6 ha | | — |
| Croft Close Set-Aside Abbey Fields | 4.45 ha | | — |
| Melwood | 3.94 ha | | — |
| Pickering Woods Cambridgeshire County Council's County Farms Estate | 3.82 ha | | — |
| Fen Drayton Recreation Ground | 3.22 ha | | — |
| Longstanton Recreation Ground | 3.17 ha | | — |
| Wale Recreation Ground | 2.72 ha | | — |
| Steeple Morden Conservation Area | 2.58 ha | | — |
| Broad Lane Amenity Area | 2.47 ha | | — |
| Orchard Park | 2.45 ha | | — |
| Fen Ditton Recreation Ground | 2.18 ha | | — |
| Teversham Rec. | 2.0 ha | | — |
| Kingston & Bourn Old Railway Local Nature Reserve | 1.98 ha | | — |
| Rosie Green Wood | 1.82 ha | | — |
| Long Meadow Abbey Fields | 1.78 ha | | — |
| Mill Lane Park | 1.71 ha | | — |
| Lower Cambourne Green & Cricket Pitch | 1.61 ha | | — |
| Brewery Field Community Green Space | 1.59 ha | | — |
| Orwell Clunch Pit | 1.54 ha | | — |
| Nine Wells Cambridge City Council | 1.36 ha | | — |
| Great Cambourne Green | 1.32 ha | | — |
| The Moat | 1.25 ha | | — |
| Greenway | 1.14 ha | | — |
| Clerk's Piece | 1.13 ha | | — |
| Bar Hill Nature Reserve | 1.0 ha | | — |
| Zebras | 0.95 ha | | — |
| Greenway | 0.93 ha | | — |
| Greenway | 0.86 ha | | — |
| Walled Garden | 0.85 ha | | — |
| Pioneer Park | 0.79 ha | | — |
| Pampisford Park | 0.72 ha | | — |
| Lolworth Commuity Allotments Play Area | 0.66 ha | | — |
| Games Field | 0.64 ha | | — |
| Greenway | 0.63 ha | | — |
| Lot Meadow | 0.63 ha | | — |
| Orchard Park | 0.62 ha | | — |
| Dutch Garden | 0.57 ha | | — |
| Waterbeach Green | 0.54 ha | | — |
| St Mary's POS Hardwick Parish Council | 0.5 ha | | — |
| greenway | 0.47 ha | | — |
| Kingsley Park | 0.46 ha | | — |
| Milne Gardens | 0.46 ha | | — |
| Greenway | 0.43 ha | | — |
| Greenway | 0.43 ha | | — |
| T-Swing Park | 0.37 ha | | — |
| Merton Park | 0.36 ha | | — |
| The Green | 0.35 ha | | — |
| Stapleford Parish Pit | 0.3 ha | | — |
| The Green | 0.3 ha | | — |
| St Catharine's Square | 0.27 ha | | — |
| The Walled Garden | 0.27 ha | | — |
| Eltisley Pocket Park | 0.26 ha | | — |
| LEAP | 0.26 ha | | — |
| Railway Green | 0.26 ha | | — |
| CGB mitigation | 0.25 ha | | — |
| Veteran Oak Gardens | 0.25 ha | | — |
| Coploe Chalk Pit Nature Reserve | 0.22 ha | | — |
| Fruit and Vegetable Garden | 0.21 ha | | — |
| Town Close Park | 0.2 ha | | — |
| South Road recreation ground | 0.18 ha | | — |
| Giant Tortoises | 0.17 ha | | — |
| LEAP | 0.17 ha | | — |
| Meridian Fields Green | 0.16 ha | | — |
| Arrington Village Gardens | 0.15 ha | | — |
| Sunset Square | 0.15 ha | | — |
| Shepherd's Green | 0.14 ha | | — |
| Lions | 0.13 ha | | — |
| Church Close | 0.12 ha | | — |
| The Titch | 0.12 ha | | — |
| Piper Green | 0.11 ha | | — |
| Tapirs | 0.11 ha | | — |
| Villedomer Garden | 0.11 ha | | — |
| Capuchin Court | 0.1 ha | | — |
| Constable's Rood | 0.1 ha | | — |
| Land Managed by the Land Trust on behalf of Marleigh Residents The Land Trust | 0.1 ha | | — |
| Tigers | 0.1 ha | | — |
| Maze | 0.09 ha | | — |
| Theatre Girton College (University of Cambridge) | 0.09 ha | | — |
| The Secret Garden | 0.08 ha | | — |
| Beer Garden | 0.06 ha | | — |
| Disbrey Close Amenity Area Barton Village Charitable Trust | 0.06 ha | | — |
| Doctor's Close Pocket Park Histon & Impington Parish Council | 0.06 ha | | — |
| The Sensory Garden Giron Town Charity | 0.06 ha | | — |
| Fellows' Garden Girton College (University of Cambridge) | 0.05 ha | | — |
| Unity Centre | 0.04 ha | | — |
| Yew Topiary Garden | 0.04 ha | | — |
| LEAP | 0.03 ha | | — |
| Habitat Garden | 0.02 ha | | — |
| Outdoors Sport Equipment | 0.02 ha | | — |
| Pump Green | 0.02 ha | | — |
| Marian Greenwood Bidder Garden | 0.01 ha | | — |
| Sensory Garden | 0.01 ha | | — |
| Swavesey Memorial Garden | 0.01 ha | | — |
| Babraham Pocket Park | — | | — |
| Fellows' Garden Girton College (University of Cambridge) | — | | — |
| Homefield Park | — | | — |
| Linton Pocket Park | — | | — |
| Public Open Space managed by The Land Trust on behalf of residents The Land Trust | — | | — |
| Public Open Space managed by The Land Trust on behalf of residents The Land Trust | — | | — |
| Sensory Garden | — | | — |
| The Coronation Garden | — | | — |