| Hampstead Heath | 230.46 ha | | — |
| Primrose Hill The Royal Parks | 25.25 ha | | — |
| Hampstead Heath Woods | 12.47 ha | | — |
| Waterlow Park | 9.91 ha | | — |
| Hampstead Cemetery | 9.3 ha | | — |
| Kilburn Grange Park | 3.17 ha | | — |
| Lincoln's Inn Fields London Borough of Camden | 2.93 ha | | — |
| Coram's Fields Coram's Fields and the Harmsworths Memorial Playground | 2.68 ha | | — |
| Russell Square | 2.53 ha | | — |
| The Walks | 2.26 ha | | — |
| Talacre Town Green Camden Council | 1.85 ha | 🐕 | — |
| Cantelowes Gardens London Borough of Camden | 1.47 ha | 🐕 | — |
| The Hill Garden and Pergola Corporation of London | 1.44 ha | | — |
| Alexandra Road Park | 1.43 ha | | — |
| Castlehaven Community Park | 1.15 ha | | — |
| Lismore Circus Open Space | 0.99 ha | | — |
| Tavistock Square | 0.97 ha | | — |
| Lincoln's Inn | 0.96 ha | | — |
| Gordon Square | 0.93 ha | | — |
| Mecklenburgh Square Gardens | 0.93 ha | | — |
| Fortune Green | 0.84 ha | | — |
| St George's Gardens London Borough of Camden | 0.83 ha | | — |
| Brunswick Square Gardens Camden London Borough Council | 0.82 ha | | — |
| Maygrove Peace Park | 0.8 ha | | — |
| Bloomsbury Square Gardens London Borough of Camden | 0.75 ha | | — |
| Bedford Square | 0.72 ha | | — |
| Gray's Inn Gardens | 0.7 ha | | — |
| St. Martin's Gardens London Borough of Camden | 0.69 ha | | — |
| Camley Street Natural Park London Wildlife Trust | 0.68 ha | | — |
| Oakley Square Gardens | 0.68 ha | | — |
| Athlone House Garden | 0.6 ha | 🐕 | — |
| Cartwright Gardens London Borough of Camden | 0.58 ha | | — |
| Leinster Mansions | 0.58 ha | | — |
| Highgate Enclosures | 0.52 ha | | — |
| Lewis Cubitt Park | 0.47 ha | | — |
| Harrington Square Gardens | 0.46 ha | | — |
| Purchese Street Open Space | 0.45 ha | | — |
| Calthorpe Community Garden | 0.44 ha | | — |
| Camden Square Gardens | 0.42 ha | | — |
| Cumberland Market | 0.42 ha | | — |
| Rochester Terrace Gardens | 0.42 ha | | — |
| Montpelier Gardens | 0.35 ha | 🐕 | — |
| Bramber Green | 0.34 ha | | — |
| Queen Square Gardens | 0.32 ha | | — |
| Fitzroy Square Garden | 0.31 ha | | — |
| Kitchen Garden | 0.3 ha | | — |
| Pond Square | 0.3 ha | | — |
| Argyle Square Gardens Camden London Borough Council | 0.29 ha | | — |
| Castlehaven Open Space | 0.29 ha | | — |
| Staff Yard | 0.28 ha | | — |
| Adelaide Nature Reserve | 0.27 ha | | — |
| Belsize Wood Nature Reserve | 0.27 ha | | — |
| Grove Terrace Squares | 0.26 ha | | — |
| Malet Street Gardens | 0.26 ha | | — |
| Red Lion Square Gardens | 0.26 ha | | — |
| Regent Square Gardens London Borough of Camden | 0.26 ha | | — |
| Swiss Cottage Open Space | 0.24 ha | | — |
| Camden Gardens London Borough of Camden | 0.23 ha | | — |
| Catholic Central Library Gardens | 0.23 ha | | — |
| Goldington Crescent Gardens | 0.23 ha | | — |
| Jane Evans Nature Reserve | 0.22 ha | | — |
| Woburn Square | 0.22 ha | | — |
| Chalcot Square Gardens London Borough of Camden | 0.17 ha | | — |
| West End Green | 0.17 ha | | — |
| Gasholder Park | 0.16 ha | | — |
| Camden Arts Centre | 0.15 ha | | — |
| Jellicoe Gardens | 0.15 ha | | — |
| Hampstead Green | 0.14 ha | | — |
| Crabtree Fields | 0.13 ha | | — |
| Elm Village Open Space | 0.13 ha | | — |
| Hampstead Road Open Space | 0.13 ha | | — |
| Phoenix Garden | 0.13 ha | | — |
| Verulam Gardens | 0.13 ha | | — |
| Burnham Community Garden | 0.12 ha | | — |
| Leighton Crescent Gardens | 0.12 ha | | — |
| Primrose Hill Court Open Space | 0.12 ha | | — |
| Sumatra Road Open Space | 0.12 ha | 🛝 | — |
| Whitfield Gardens | 0.12 ha | | — |
| Alfred Place Gardens | 0.11 ha | | — |
| Mill Lane Open Space | 0.11 ha | | — |
| Ridgmount Gardens | 0.11 ha | | — |
| Friends House Garden Friends House | 0.1 ha | | — |
| Lithos Road Communal Park | 0.1 ha | | — |
| Lyttleton Close Garden | 0.1 ha | | — |
| Greville Place Nature Reserve | 0.08 ha | | — |
| Hutchinson House Community Garden | 0.08 ha | | — |
| Peckwater Estate Natural Play Area | 0.08 ha | | — |
| Cleaver House Community Garden | 0.07 ha | | — |
| Quickswood Garden | 0.07 ha | | — |
| Troyes House Garden | 0.07 ha | | — |
| Higginson House Garden | 0.06 ha | | — |
| Mary Wharrie House Gardens | 0.06 ha | | — |
| Briary Close Garden | 0.05 ha | | — |
| Falkland Place Open Space London Borough of Camden | 0.05 ha | | — |
| Inverness Gardens | 0.05 ha | | — |
| The Meadow | 0.05 ha | | — |
| College Gardens London Borough of Camden | 0.04 ha | | — |
| Hawtrey Garden | 0.04 ha | | — |
| St Pancras Cruising Club Garden | 0.04 ha | | — |
| Wharf Road Gardens | 0.04 ha | | — |
| Andrews House Gardens | 0.03 ha | | — |
| Cayford House | 0.03 ha | | — |
| Dorney Green Chalcot Estate | 0.03 ha | | — |
| Dorney Green | 0.03 ha | | — |
| Friedrick Street Garden | 0.03 ha | | — |
| Johnson House Community Garden | 0.03 ha | | — |
| Marchmont Community Garden | 0.03 ha | | — |
| Heath Strange Garden | 0.02 ha | | — |
| Inkerman Garden | 0.02 ha | | — |
| Olympic Ring Park | 0.02 ha | | — |
| The Poets' Park | 0.02 ha | | — |
| World Peace Garden | 0.02 ha | | — |
| Dorney Flower Garden | 0.01 ha | | — |
| Hawtrey Green | 0.01 ha | | — |
| Levita House Plantation Camden | — | | — |
| Westbere Copse | — | | — |