| Hornchurch Country Park London Borough of Havering | 126.44 ha | | — |
| Ingrebourne Hill Forestry England | 80.66 ha | | — |
| Ingrebourne Marshes SSSI Essex Wildlife Trust | 67.25 ha | | — |
| Bretons Park | 63.37 ha | | — |
| Dagnam Park | 58.54 ha | | — |
| Bedfords Park | 54.8 ha | | — |
| Harrow Lodge Park | 54.79 ha | | — |
| Folkes Lane Wood | 52.29 ha | | — |
| Bonnetts Wood | 39.63 ha | | — |
| Tyler's Common | 26.2 ha | | — |
| Pages Wood Forestry Commission | 21.92 ha | | — |
| Berwick Glades | 21.09 ha | | — |
| Central Park | 19.61 ha | | — |
| Harold Wood Park | 19.1 ha | | — |
| Ingrebourne Valley Local Nature Reserve | 15.76 ha | | — |
| Upminster Hall Playing Fields | 12.34 ha | | — |
| Haynes Park | 11.89 ha | | — |
| Raphael Park | 11.38 ha | | — |
| Rise Park | 9.99 ha | | — |
| King George's Playing Fields | 8.29 ha | | — |
| Hylands Park | 6.83 ha | | — |
| Upminster Park | 6.82 ha | | — |
| Lawns Park | 6.8 ha | | — |
| Spring Farm Park | 6.48 ha | | — |
| Parklands | 5.65 ha | | — |
| Oldchurch Park | 5.42 ha | | — |
| Lodge Farm Park | 5.26 ha | | — |
| Cottons Park | 4.79 ha | | — |
| Abbey Wood Public Open Space | 3.42 ha | | — |
| Deer Enclosure | 3.21 ha | | — |
| Cranham Brickfields | 3.16 ha | | — |
| Platford Green | 2.99 ha | | — |
| St. Andrew's Park | 2.76 ha | | — |
| Langtons Gardens | 2.26 ha | | — |
| Fielder's Field | 2.16 ha | | — |
| Park Lane Recreation Ground | 2.01 ha | | — |
| Grenfell Park | 1.99 ha | | — |
| Memorial Woodland | 1.97 ha | | — |
| Jutsums Park | 1.83 ha | | — |
| Cottons Park | 1.47 ha | | — |
| Clockhouse Gardens | 1.31 ha | | — |
| Conservation Area | 1.16 ha | | — |
| Jubilee Park | 1.16 ha | | — |
| Bancroft Chase | 0.6 ha | | — |
| The Glens | 0.33 ha | | — |
| Louis Marchesi | 0.3 ha | | — |