Pixel Green

The green wall system would create habitats for wildlife such as insects, butterflies and birds.

Extensive planting of green walls would filter pollutants and improve air quality around buildings and in local areas.

Green walls also have a cooling effect that would mitigate the growing problem of the urban heat-island effect.

A green pixel (or unit of planting) would be a fully-serviced and tested green wall system, as developed by the ANS Group.

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Pixel Green

Transform the city one pixel at a time

Pixel Green proposes to pixellate London with living green walls, thereby increasing biodiversity, improving air quality across the city and mitigating urban heat-island effect.

The proposal provides a strategic approach to developing a typical mid-size green wall suitable for a multi-storey residential tower block. A series of pixels could be combined through building design codes to create a new image for London – for example, by stipulating that all pixel developments have the same orientation. 

Pixel Green is a flexible proposition that would combine different approaches in a single city-wide strategy. For example, vertical allotments with fruit and vegetable planting at lower accessible levels would provide opportunities for community food growing, while planting native species specific to London's geography would increase biodiversity.


Urban greening


All London

Submitted by

Nicholas Hare Architects with Biodiversity by Design and ANS Group


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