| Horsenden Hill Open Space | 44.57 ha | | — |
| Horsenden Hill Open Space | 34.56 ha | | — |
| Rectory Park | 23.86 ha | | — |
| Warren Farm Nature Reserve https://www.warrenfarmnaturereserve.co.uk | 22.44 ha | | — |
| Elthorne Waterside (Elthorne Rough) | 22.24 ha | | — |
| Perivale Park | 19.82 ha | | — |
| Islip Manor Meadows | 18.71 ha | | — |
| Pear Tree Park Ealing Parks | 18.24 ha | | — |
| Northala Fields Ealing Council | 18.2 ha | | — |
| Pitshanger Park | 17.61 ha | | — |
| Ealing Common | 15.33 ha | | — |
| Perivale Wood Local Nature Reserve Selborne Society | 12.5 ha | | — |
| Ravenor Park | 12.45 ha | | — |
| Walpole Park | 12.28 ha | | — |
| Paradise Fields The Ealing Beaver Project | 10.5 ha | | — |
| Marnham Fields | 10.48 ha | | — |
| Southall Park | 10.32 ha | | — |
| Acton Park London Borough of Ealing | 9.72 ha | | — |
| Lammas Park | 9.62 ha | | — |
| Lime Tree Park | 9.16 ha | | — |
| North Acton Playing Field | 9.11 ha | | — |
| Blondin Park | 8.84 ha | | — |
| Jubilee Meadow and Blackberry Corner | 7.82 ha | | — |
| Earl of Jersey's Field | 6.89 ha | | — |
| Islip Manor Park | 6.73 ha | | — |
| Glade Lane Canalside Park | 6.69 ha | | — |
| Cayton Green Park | 6.49 ha | | — |
| Smiths Farm | 6.31 ha | | — |
| Brent Lodge Park (Bunny Park) | 6.07 ha | | — |
| Lord Halsbury Memorial Playing Field Ealing Council | 6.03 ha | | — |
| Cuckoo Park | 5.56 ha | | — |
| Belvue Park | 4.96 ha | | — |
| Priors Field | 4.96 ha | | — |
| Cleveland Park | 4.89 ha | | — |
| Yeading Brook Meadow | 4.71 ha | | — |
| Bittern's Field | 4.61 ha | | — |
| Greenford Lagoons | 4.11 ha | | — |
| Elthorne Park | 3.94 ha | | — |
| Brentham Meadows | 3.82 ha | | — |
| Mandeville Parkway | 3.68 ha | | — |
| Hanger Hill Park | 3.5 ha | | — |
| Acton Green Common | 3.08 ha | | — |
| Trumpers Field | 2.97 ha | | — |
| Dormers Wells Moated Manor | 2.91 ha | | — |
| Norwood Green | 2.88 ha | | — |
| Brent River Park | 2.87 ha | | — |
| Medlar Fields | 2.67 ha | | — |
| Drayton Green | 2.49 ha | | — |
| Brent Meadow | 2.46 ha | | — |
| Trinity Way Open Space | 2.4 ha | | — |
| Blondin Park Nature Reserve | 2.38 ha | | — |
| Horsenden Lower Thrifts Field | 2.36 ha | | — |
| Springfield Gardens | 2.17 ha | | — |
| Wood End Wireless Station | 2.1 ha | | — |
| Lammas Enclosure | 2.03 ha | | — |
| Montpelier Park | 1.85 ha | | — |
| Grove Farm local nature reserve ealing Council | 1.67 ha | | — |
| Acton Green Common | 1.59 ha | | — |
| Wesley Playing Fields | 1.58 ha | | — |
| Wolf Fields Park | 1.31 ha | | — |
| Ealing Green | 1.29 ha | | — |
| Ridding Lane Open Space | 1.28 ha | | — |
| Haven Green | 1.21 ha | | — |
| Dean Gardens | 1.2 ha | | — |
| Bixley Field | 1.14 ha | | — |
| Manor House Grounds (Phoola Walla Park) | 1.12 ha | | — |
| Eskdale Open space | 0.98 ha | | — |
| Litten Local Nature Reserve | 0.97 ha | | — |
| Perivale East Meadow | 0.96 ha | | — |
| Mill Hill Park | 0.91 ha | | — |
| Castlebar Park | 0.89 ha | | — |
| Haven Green | 0.84 ha | | — |
| St Margaret's Open Space | 0.79 ha | | — |
| Cranleigh Gardens | 0.77 ha | | — |
| The Woodlands | 0.75 ha | | — |
| Twyford Crescent Gardens | 0.72 ha | | — |
| Conolly Dell | 0.65 ha | | — |
| Heathfield Nature Garden | 0.65 ha | | — |
| Bramley Road Open Space | 0.6 ha | | — |
| Village Park Rec. | 0.59 ha | | — |
| The Green, East Acton | 0.58 ha | | — |
| Bollo Brook Park | 0.55 ha | | — |
| King George V Playing Field | 0.5 ha | | — |
| West Park | 0.39 ha | | — |
| Wood End East Recreation Ground | 0.39 ha | | — |
| Maytrees Rest Gardens | 0.35 ha | | — |
| St Dunstans Gardens | 0.35 ha | | — |
| Warwick Dene | 0.34 ha | | — |
| Fielding Walk | 0.33 ha | | — |
| Beaconsfield Gardens | 0.27 ha | | — |
| Mill Hill Gardens | 0.26 ha | | — |
| Canalway Park | 0.24 ha | | — |
| Walmer Gardens | 0.24 ha | | — |
| Saint Dunstans Church area | 0.23 ha | | — |
| Three Bridges Park | 0.23 ha | | — |
| Walled Garden | 0.23 ha | | — |
| Clayton Gardens | 0.21 ha | | — |
| Denison-Ludlow Green | 0.2 ha | | — |
| Friars Gardens | 0.18 ha | | — |
| Wildberry Nature Reserve | 0.17 ha | | — |
| Friary Park Green | 0.16 ha | | — |
| Bromyard Gardens | 0.15 ha | | — |
| Play Service Nature Area | 0.14 ha | | — |
| Victoria Gardens | 0.11 ha | | — |
| Duke of Sussex Island | 0.1 ha | | — |
| Westcott Park Community Garden | 0.1 ha | | — |
| Northolt Village Rest Garden | 0.09 ha | | — |
| Tortoise Green | 0.06 ha | | — |
| Cerebos Gardens | 0.05 ha | | — |
| North Acton Triangle Ealing Council | 0.04 ha | | — |
| Five Roads Community Garden | 0.02 ha | | — |
| Garden for 9 Westbury Road | 0.02 ha | | — |
| Southall Train Crash Memorial Garden | 0.02 ha | | — |
| Poets' Corner Community Garden | 0.01 ha | | — |
| Cultivate London @Berrymede Community Gardens Cultivate London | — | 🛝 | — |
| Cultivate London @DIG Hanwell Cultivate London | — | | — |
| Ealing Beaver Project | — | | — |