You can use the form below to compare any dataset with another. It’s not clear yet how useful this is yet, so if you find something which stands out please let us know.
Sources: 1) Wikipedia 2) "London's 'Protected' Land: the extent, location and character of designated Green Belt and Metropolitan Open Land in Greater London", 2018 (Greenspace Information for Greater London / Campaign for the Protection of the Rural Environment) 3) Population of London (UK) boroughs in 2018, Statistica, Published by Daniel Clark, Oct 28, 2019 4) "State of Brownfield 2019", Campaign for the Protection of Rural England, 2019 (data from local authorities' brownfield land registers, varying dates)..