| Beckenham Place Park London Borough of Lewisham | 98.05 ha | | — |
| Ladywell Fields London Borough of Lewisham | 22.51 ha | | — |
| Hilly Fields | 18.39 ha | | — |
| Forster Memorial Park | 16.34 ha | | — |
| Mountsfield Park London Borough of Lewisham | 13.45 ha | | — |
| Downham Fields | 12.57 ha | | — |
| Pool River Linear Park | 12.37 ha | | — |
| Chinbrook Meadows | 11.73 ha | | — |
| Sydenham Wells Park | 8.2 ha | | — |
| Whitefoot Lane Playing Fields | 7.2 ha | | — |
| Blythe Hill Fields | 7.16 ha | | — |
| Mayow Park | 6.95 ha | | — |
| Deptford Park London Borough of Lewisham | 6.84 ha | | — |
| Horniman Museum and Gardens | 6.75 ha | | — |
| Brockley Nature Reserve London Wildlife Trust | 5.31 ha | | — |
| Grove Park Nature Reserve London Borough of Lewisham | 4.36 ha | | — |
| Lewisham Park | 4.06 ha | | — |
| Manor House Gardens | 3.87 ha | | — |
| Northbrook Park | 3.7 ha | | — |
| Fordham Park | 3.67 ha | | — |
| School Playing Fields | 3.53 ha | | — |
| Downham Park | 3.38 ha | | — |
| Brookmill Park | 3.12 ha | | — |
| Home Park | 3.09 ha | | — |
| Southend Park | 2.73 ha | | — |
| Folkestone Gardens | 2.45 ha | | — |
| Garthorne Road Nature Reserve | 2.44 ha | | — |
| Telegraph Hill Lower Park | 2.39 ha | | — |
| Bridgehouse Meadows | 2.31 ha | | — |
| Devonshire Road Nature Reserve | 2.08 ha | | — |
| Horniman Triangle | 1.75 ha | | — |
| Telegraph Hill Upper Park | 1.75 ha | 🐕 | — |
| Upper Pepys Park | 1.5 ha | | — |
| Pepys Park | 1.49 ha | | — |
| Hither Green Nature Triangle Nature’s Gym and HGT User Group | 1.4 ha | | — |
| Manor Park | 1.38 ha | | — |
| Margaret McMillan Park | 1.08 ha | | — |
| Cornmill Gardens | 1.01 ha | | — |
| Bellingham Green | 1.0 ha | | — |
| Evelyn Green Lewisham Council | 0.99 ha | | — |
| Sayes Court Park | 0.89 ha | | — |
| Ravensbourne Park Gardens | 0.88 ha | | — |
| Dacres Wood Nature Reserve | 0.64 ha | | — |
| Edith Nesbit Gardens | 0.63 ha | 🛝 | — |
| Sue Godfrey Nature Park London Borough of Lewisham | 0.59 ha | | — |
| Charlottenburg Park Lewisham Council | 0.49 ha | | — |
| Crossfield Open Space Thames Water | 0.47 ha | | — |
| Brookmill Road Local Nature Reserve London Borough of Lewisham | 0.37 ha | | — |
| Creekside Discovery Centre | 0.25 ha | | — |
| Grow Mayow Community Garden | 0.17 ha | | — |
| Culverley Green Open Space | 0.14 ha | | — |
| Mary Ann Gardens London Borough of Lewisham | 0.1 ha | | — |
| Burst Ash Pond London Borough of Lewisham | 0.08 ha | | — |
| Crofton Park Railway Garden | 0.06 ha | | — |