Urban Greening Factor
The Urban Greening Factor (UGF) is a planning tool designed to evaluate how green a building is. It is used by local authorities when assessing development of the built environment. This major policy initiative is set out in the New London Plan to increase green cover of cities. The aims of the UGF include to:
■□ Accelerate greening of the built environment – making sure London is greener as it grows.
■□ Ensure better planned, better quality greening interventions that contribute to a functioning GI network.
■□ Improve biodiversity.
■□ Reduce rainwater run-off.
■□ Improve carbon sequestration.
■□ Reduce air and noise pollution.
■□ Regulate urban temperature.
The UGF is relatively easy to calculate and score, however the targets of 0.3/0.4 are quite demanding.
The London Plan suggested targets are 0.4 for residential properties and 0.3 for commercial buildings.
UGF figures for Bauder Green roof systems
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Bauder Green Roof System
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Urban Greening Factor
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Bauder Impermeable Paving
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0
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Bauder Permeable Paving
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0.1
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Bauder XF301
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0.3
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Bauder SB Sedum Blanket
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0.7
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Bauder Wildflower Blanket
Substrate depth 100 to 150mm
Substrate depth 150mm+
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0.7
0.8
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Biodiverse Green Roofs
Undulating substrate depth 100 to 150mm
Undulating substrate depth 150mm+
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0.7
0.8
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Bauder Intensive Landscape
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0.8
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