How much extra does sustainable housing construction cost?
- Publisher:
- Pontificia Inivseridad Catolica de Chile Avda
- Publication Type:
- Conference Proceeding
- Citation:
- CIB W107 Construction in Developing Economies: New Issues and Challenges, 2006, pp. 1 - 10
- Issue Date:
- 2006-01
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2008000846OK.pdf | 150.46 kB |
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This paper gauges how much extra construction costs, when required to meet housing sustainability requirements. Housing construction in New South Wales (NSW) is the first in Australia to be subject to mandatory sustainability requirements. The NSW Department of Infrastructure Planning and Natural Resources has developed and mandated use of an online assessment tool `BASIX which acts as a sustainability index and sets scores required to obtain development approval in new single dwelling projects. Of note, dwellings must pass thermal comfort requirements, achieve at least a 40% reduction in water consumption and at least a 25% reduction in greenhouse gas (energy) emissions compared to a base model house. Cost differences were determined between 20 houses constructed to meet the BASIX sustainability criteria, versus 20 conventional houses. The research design identified and addressed the need to control extraneous variables that could affect the comparison
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