Making All Communities Sustainable No Other Choice Green Alliance - - PowerPoint PPT Presentation

making all communities sustainable no other choice
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Making All Communities Sustainable No Other Choice Green Alliance - - PowerPoint PPT Presentation

Making All Communities Sustainable No Other Choice Green Alliance / Eden Project seminar: Sustainable Construction are we closing the loop? Monday 30 th January 2006, Eden Project Professor Anne Power, London School of Economics Finite


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Making All Communities Sustainable – No Other Choice

Green Alliance / Eden Project seminar: Sustainable Construction – are we closing the loop? Monday 30th January 2006, Eden Project Professor Anne Power, London School of Economics

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Finite planet

  • Total human dependence on nature’s

goods & services

  • British Isles – crowded, overdeveloped,
  • ld, rich, urban, unequal, atomised
  • Satellite images of places are shocking
  • Damage, deficits are dire
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Buildings

  • Homes, public facilities, enterprise,

commerce – 50% carbon

  • Construction, use, transport, infrastructure
  • Development impact – 80% land
  • Buildings suck in resources, pollute, dump
  • Space, land use, wider impacts
  • Third most populated in world
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Can’t just carry on

  • Reaching limits of congestion
  • Homes waste energy
  • Exhausting key assets – land, water
  • Damaging cohesion - unequal migration
  • Destroys democracy - resource battles
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Conundrum

  • How to claw back damage?
  • Work on existing buildings
  • How to improve what we’ve got?
  • Renew existing communities
  • How to persuade people to love cities?
  • Recycle, reuse, reshape, re-link
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Density is key

  • Too crowded too thin anorexic
  • Density offers critical resource measures:

1900: 200 homes per hectare 23 35: 2005 1900: 1200 people per hectare 55 80: 2005

  • Need 50 homes per hectare to support

reliable, regular bus etc

  • Reuse settlements support community
  • Shared space = shared resources
  • Families versus isolated elderly
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SLIDE 7

Earliest known city → Manchester

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Coronation Street – the answer?

  • Community nostalgia or density?
  • Happiness or space?
  • Social animals - ‘ant cities’
  • Environmental gains?
  • Sustainable communities?
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SLIDE 13

Essential targets

  • Recycle 90% buildings; 50% infrastructure
  • Infill 90% new build
  • Renovate all homes
  • Halve water & waste through care,

recycling, reuse

  • Ban all toxic materials – substitutes work
  • 50 homes per hectare as minimum
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SLIDE 14

How does Code measure up?

  • Small, but significant step
  • Identifies problem
  • Too little, NOT too late
  • Builders expect tough shifts
  • Playing for time
  • Gadgets are not buildings
  • Gadgets need market incentives
  • Ignores (so far) existing communities
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SLIDE 15

Sustainable Communities

  • 99% already exist
  • Capacity in London
  • Small sites within city
  • Protect green belts, floodplains,

biodiversity

  • Cohesion is critical
  • Lower cost homes model Θ energy

prices

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SLIDE 16

Affordable housing problem

  • Land is finite/sea is ‘given’
  • Smaller units
  • More shared facilities
  • Denser cities
  • Better designed homes
  • More mixed communities
  • More organic growth
  • Special needs need special help
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SLIDE 17

Successful community magnets

  • Family & elderly friendly
  • Stability, known faces, community anchors
  • Open, green, play spaces
  • Supervision & maintenance & security
  • Social events, community facilities
  • ‘Comfortable & not alone’ i.e. home
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SLIDE 18

Renewing urban communities

  • Impact of renovation

– 1/10 energy; 1/4 price – Bicycles; Schools

  • Impact of:

– Homes Zones – Sure Start

  • ‘Heritage dividend’
  • Trees, small gardens, pocket parks
  • Windmills and micro-generators
  • Upgrading is global lesson
  • Low cost areas guarantee survival
  • Fascinated by dynamism of cities
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SLIDE 19

Is this a mad dream?

  • Copenhagen
  • Barcelona
  • Roma
  • Marseilles
  • Portland
  • Bogota
  • Curitiba
  • Planned or evolved?
  • Big shifts start small