You can build up a lot, far more than is typical in much of London. There are 3.6 million dwellings [0] in the 157,000 hectares of London [1]. There's 14,000 H

You can build up a lot, far more than is typical in much of London. There are 3.6 million dwellings [0] in the 157,000 hectares of London [1]. There's 14,000 Hectares of Park and Open Space [2]. If you quadrupled the amount of park and open space to 56,000 hectares, leaving 100,000 for housing, and built as dense as Islington or Kensington+Chelsea (not particularly known for skyrise apartments), at 70 per hectare, that would be 7 million dwellings, about twice as many as now, even with far more public open space [0] https://data.london.gov.uk/dataset/number-and-density-of-dwellings-by-borough https://data.london.gov.uk/dataset/number-and-density-of-dwe... [1] https://en.wikipedia.org/wiki/London https://en.wikipedia.org/wiki/London [2] https://en.wikipedia.org/wiki/Parks_and_open_spaces_in_London https://en.wikipedia.org/wiki/Parks_and_open_spaces_in_Londo...