| Cirencester Park | 1444.67 ha | 🐕 | — |
| Westonbirt Arboretum Forestry England | 241.82 ha | 🐕 | — |
| Batsford Park | 114.47 ha | | — |
| Leckhampton Hill | 65.35 ha | | — |
| Williamstrip Park | 61.62 ha | | — |
| Crickley Hill Country Park National Trust | 60.07 ha | | — |
| Cotswold Country Park and Beach | 47.39 ha | | — |
| Greystones Nature Reserve | 37.94 ha | | — |
| Swillbrook Lakes Nature Reserve | 23.94 ha | | — |
| Roundhouse Lake | 19.14 ha | | — |
| Sandpool Farm Nature Reserve Wiltshire Wildlife Trust | 16.43 ha | | — |
| Shorncote Reedbeds Cotswold Lakes Trust | 15.09 ha | | — |
| Cokes Pit Nature Reserve Cotswold Lakes Trust | 10.78 ha | | — |
| Elmlea Meadows | 10.63 ha | | — |
| Abbey Grounds Cirencester Town Council | 10.47 ha | | — |
| Neigh Bridge Country Park | 9.37 ha | | — |
| Kingscote Park | 9.29 ha | | — |
| Hidcote Manor Garden National Trust | 8.73 ha | | — |
| Kilkenny Viewpoint and Nature Reserve | 5.31 ha | | — |
| Arle Grove | 4.3 ha | | — |
| Hampen Railway Cutting | 3.03 ha | | — |
| St Michael's Park Cirencester Town Council | 2.91 ha | | — |
| Kiftsgate Court Gardens | 2.89 ha | | — |
| Farmcote Estate | 2.77 ha | | — |
| City Bank Local Nature Reserve | 1.69 ha | | — |
| Lee Croft | 1.54 ha | | — |
| Walnut Tree Field | 1.51 ha | | — |
| Church House, Lechlade | 1.22 ha | | — |
| Marshmouth Nature Reserve Birdland Park and Gardens | 1.2 ha | | — |
| Notgrove Railway Cutting | 1.13 ha | | — |
| Mickleton Play Park | 1.08 ha | | — |
| City Bank | 1.07 ha | | — |
| Mill Dene Garden | 0.75 ha | | — |
| Hampen Railway Cutting | 0.6 ha | | — |
| Arle Grove | 0.56 ha | | — |
| Bourton House Garden | 0.56 ha | | — |
| Notgrove Railway Cutting | 0.54 ha | | — |
| Roots+Seeds Kitchen Garden | 0.14 ha | | — |
| Coln House School River Bank Project | 0.13 ha | | — |
| East Garden National Trust | 0.06 ha | | — |
| Community Garden | 0.05 ha | | — |
| The Oxpens | 0.04 ha | | — |
| Herbs and Infusion Garden | 0.01 ha | | — |
| Richardson and Amey Nature Reserve | — | | — |
| Richardson and Amey Nature Reserve | — | | — |
| Westonbirt Gardens | — | | — |
| nature reserve | — | | — |