Calculating density

Densities are measured in relation to the net site area which includes:

  • Private and communal open space
  • Internal streets
  • Multi-functional public space intended principally for the benefit and enjoyment of occupiers of the development
  • Non-residential uses within a mixed-use building that also contains residential accommodation
  • Net density excludes public open space, the streets along the boundary of the site that serve a wider area and any non-residential uses that are not located above or below residential accommodation.

It is understood that there can arise a conflict as a result of the need for developers to achieve minimum densities for development and the need for them to accommodate an appropriate mix of uses. Achieving minimum density thresholds using the density measure for residential development (dwellings per hectare) alone would be incompatible with encouraging a substantial provision of mixed-use development. The calculations should therefore take account of the space taken up by non-residential uses within mixed-use buildings.

Page updated: 12/01/2021

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