Now, 20 years later, most Australian dwellings remain energy inefficient and built to an internationally poor standard. Insulation is particularly woeful. In summer, up to 87% of heat gain occurs through windows, while in winter up to 40% of heat loss is through windows. Barely any Australian dwellings have “high-performance windows” which effectively insulate the house from the heat and cold. Roughly one in ten new residential houses have high-performance windows in Australia, whereas more than three-quarters of all houses have these windows in New Zealand and the United Kingdom.
Australian dwellings are either too cold in winter and too hot in summer, or reliant on air conditioning and heating systems, adding to bills for Australians and making the climate transition more difficult.
This is unsurprising; minimum energy efficiency standards have only recently increased from 6 to 7 stars following stalling from industry. Meanwhile, compliance and enforcement in the sector is often lacklustre. The ABC recently reported that NSW’s Building Commission has not fined a single developer for defying defect orders and at least 60% of work rectification orders have not been fully complied.
It looks like the industry’s complaints have finally borne fruit. The Government’s main housing policy announcement from the Roundtable has been freezing (an appropriate word given the state of Australian housing) the National Construction Code until mid-2029. Ironically, this freeze will mean the Code cannot be simplified during these four years, nor can any innovations be incorporated.
Instead of blaming regulations for the housing crisis, the Australian Government could look to tax concessions for property investors, which cost over $10 billion a year, make inequality worse and help landlords outbid first-home buyers. The Government could tackle the housing crisis by cracking down on these giveaways and directly building any additional housing Australia might need, all while regulating to make sure properties are energy efficient, safe, and durable.