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The Nationwide House Energy Rating Scheme, or NatHERS, is being expanded to include Whole of Home assessments and ratings to support the proposed National Construction Code energy efficiency requirements for residential buildings in 2022; the changes will help households improve a home's energy efficiency and reduce energy use, which provides a range of benefits including lower energy bills, improved comfort and health for occupants, and reduced carbon emissions.

This research primarily aims to investigate an inclusive list of factors impacting on quality management system deployment in the construction industry building sector by focusing exclusively on the external factors and the critical success factors of project level in order to develop a comprehensive framework of quality management system deployment.

Sustainable building design should consider durability, affordability, resource conservation, intra and intergenerational social equity aspects, and stakeholder’s perspective throughout its service life; this research has applied life cycle sustainability assessment (LCSA) framework to estimate the sustainability performance in terms of a single score, and to identify avenues for sustainability improvement strategies of buildings.