Redefining value: Supporting the uptake of low-carbon housing

Low-carbon housing strategies (LCHS) are essential for New Zealand’s existing detached housing stock as it exceeds carbon emission budgets. The uptake of LCHS is limited by current ocularcentric evaluation frameworks, which place value on spatial and cosmetic achievements in housing. To shift inhabitant housing choices to low-carbon and non-toxic materials, reduced floorplan, high-performance design, and residential retrofit, we must change the way architecture is evaluated, valued, and expressed. Recognising the complexity of this value shift, this thesis employs a multi-pronged methodology. The thesis provides context on New Zealand’s current housing landscape and architecture evaluation frameworks. Energy and carbon modelling demonstrate possible tools to evaluate two solutions for a high-carbon existing detached house. Findings from an exhibition and questionnaire indicate the disconnect between personal values and visual preferences and suggest that preference change of LCHS can be prompted with the provision of environmental data. Visual and textual analysis of architecture awards and real-estate magazines confirm the limited visibility of sustainability in current value frameworks. Finally, the thesis suggests layout, façade and windows are housing characteristics that can be leveraged to enhance the visibility and value of low-carbon housing. This thesis suggests alternate ways to evaluate, value and express housing to support the uptake of LCHS. It urges the architectural industry to incorporate environmental data in housing evaluations. Transparent and reliable communication of this information is needed to support inhabitants’ evaluation of housing choices. The thesis also suggests architects should focus on enhancing the perceived value of LCHS through aesthetics, design and visual communication. To support the uptake of LCHS, it is imperative to understand and expand the value frameworks of all housing stakeholders.