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Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
Sustainable Business Seminar June08
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Sustainable Business Seminar June08

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presented by Jessica Winter of Sustainable Wanaka

presented by Jessica Winter of Sustainable Wanaka

Published in: Business, Technology
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    • 1. Measuring the value of sustainable buildings Jessica Winter – Green Building Consultancy
    • 2. <ul><li>Globally, buildings consume : </li></ul><ul><li>40% of raw resources </li></ul><ul><li>16% of fresh water </li></ul><ul><li>Up to 40% of energy </li></ul><ul><li>55% of timber harvested </li></ul><ul><li>And buildings produce : </li></ul><ul><li>40% - solid waste to landfill </li></ul><ul><li>40% - harmful air emissions </li></ul><ul><li>35% - carbon dioxide emissions </li></ul>
    • 3. How do your buildings affect you? How does sustainability add value to buildings? The importance of measurement
    • 4. Environmental? Economic? Social?
    • 5. Housing, heating & health study, 2007. Wellington School of Medicine <ul><li>412 families with children with doctor-diagnosed asthma and low incomes/poorly heated homes </li></ul><ul><li>Installed insulation in one group, left control group </li></ul><ul><li>Found that family members living in insulated houses had 40-50% reduction in sick days off work and school, fewer GP visits and fewer hospital admissions </li></ul><ul><li>“… health benefits exceed the actual cost of fixing the houses by a ratio of almost 2:1…” </li></ul>
    • 6. Lower bills are not the main value of sustainable buildings <ul><li>In Offices: </li></ul>building: 10% staff: 85% building running costs: 1%
    • 7. <ul><li>Pennsylvania Light and Power: paid back the premium for their green building in 69 days through lower absenteeism and higher productivity </li></ul><ul><ul><ul><ul><ul><li>Royal Institution of Chartered Surveyors www.rics.org </li></ul></ul></ul></ul></ul><ul><li>UK hospital study: discharge rates reduced by 20% (1.7 days less on average) </li></ul><ul><ul><ul><ul><ul><li>CABE/ University of Sheffield </li></ul></ul></ul></ul></ul>
    • 8. <ul><li>1 - 1.5% increased staff productivity from workforce: </li></ul><ul><ul><li>equivalent to approx. $850 per employee per year </li></ul></ul><ul><ul><li>At 5% discount rate, this equals approx. $600/m 2 over 20 years </li></ul></ul><ul><li>Green building costs and financial benefits G Kats, 2003 Massachusetts Technology Collaborative </li></ul>
    • 9. Measuring sustainability in buildings in New Zealand <ul><li>Green Star </li></ul><ul><ul><li>Measures the environmental responsiveness of office buildings as a Star rating </li></ul></ul><ul><ul><li>Developers using measurable sustainability as a point of difference </li></ul></ul><ul><li>Home Energy Rating Scheme </li></ul><ul><ul><li>In Australia each extra star is said to increase house value by an average o f AU$12,000 </li></ul></ul>
    • 10. Case Study: Conservation House (DOC), Wellington
    • 11. <ul><li>Green Star ‘5* standard’ </li></ul><ul><li>Workstations max 8m from street window or atrium </li></ul><ul><li>Roof garden </li></ul><ul><li>Chilled beams for cooling </li></ul><ul><li>Rainwater collection for flushing toilets </li></ul><ul><li>Sorting of construction/demolition waste on site </li></ul><ul><li>Sensors dim lights according to daylight levels </li></ul><ul><li>Finishes: Low formaldehyde MDF, Resene environmental choice paints and Linoleum, PVC-free fittings </li></ul><ul><li>Building Management System (BMS) controls chilled beams, night purges and natural ventilation </li></ul><ul><li>Small wind turbine on roof </li></ul>
    • 12. Predicted energy savings at Conservation House
    • 13. Anecdotal reports from DoC suggest that first year’s savings may be in the order of $130,000
    • 14. The human value <ul><li>Attractive, centralised stairs encourage staff to walk – lift usage is lower than other buildings of similar size </li></ul><ul><li>Layout designed to encourage communication and collaborative working </li></ul><ul><li>Anecdotal reports from DOC indicate lower absenteeism </li></ul>Acknowledgements: Belinda Tuohy, architecture+ Dave Alcock, DoC Original building owner: The Wellington Company Architect: Stuart Gardyne, architecture + Structural, fire and services consultants: Sinclair Knight Merz
    • 15. Case Study: Conservation House (DOC), Wellington <ul><li>“ ..I hadn't appreciated the significance of the outdoor garden and I’ve been impressed by the benefits it has delivered to the well-being of staff and their enjoyment of the building.” </li></ul><ul><li>Architect Stuart Gardyne </li></ul><ul><li>“ We are also expecting other benefits... in terms of increased productivity and less sick-leave.... People...shouldn't underestimate the difference to staff moral.” </li></ul><ul><li>DOC GM Grant Baker </li></ul>
    • 16. In commercial buildings: Main economic value is improved occupant performance Also significant energy savings Marketing tool: being seen to be green
    • 17. <ul><li>You can’t value what you can’t measure </li></ul>“ What gets measured gets managed”

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