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Eco City in Action – Waitakere City Council’s Better
Building Code
Katja Lietz, Project Manager Sustainability Projects, Waitakere City Council
www.waitakere.govt.nz
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In 1993 Waitakere City adopted Agenda 21
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Protecting the the natural environment
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Creating more sustainable urban areas
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What does this mean for the built environment?
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Urban intensification and revitilisation
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Getting around is easy by public transport,
cycling and walking
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Strong sense of community
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Sustainable energy and clean air
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Zero Waste
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Sustainable water, wastewater and stormwater management
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Eco building projects
• Holistic approach, incorporating all aspects of our Eco City vision
• Affordable• Inspirational
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The Better Building Code
• Standard clauses for tendering and briefing documents
• Minimum standard for all new Council (and Council funded) buildings
• Performance based
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The Better Building Code• Energy, water and resource efficient • Materials that do not harm the environment or
people• Healthy indoor climate • Reflect environmental and sustainability principles
throughout
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The Better Building Code• Simple solutions and passive systems • Buildings should be inviting and safely
accessible for all people • Adaptable to changing uses, durable and
easy to maintain
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The Better Building Code
• Overall the building must not consume more than 100 kWh per m2 per year (total energy use, including gas and any other fuels, but excluding passive solar energy).
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• Take an holistic approach
• Prioritise
• Be flexible and realistic
• Take risks
• Be persistent
• Just get on and do it
Success factors
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• Need to be more prescriptive – a list of ‘must haves’ for every building.
• Decide priorities for each project.
• Need more information about ventilation systems and acoustics.
Review of the Better Building Code
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www.waitakere.govt.nz