How energy efficiency ratings are quietly reshaping property values

Across Australia, energy efficiency is moving steadily from policy discussion to practical reality. Minimum standards, disclosure requirements and tenant expectations are evolving, albeit at different speeds across jurisdictions.

In the Australian Capital Territory, however, energy efficiency is not a new concept. It is already embedded in the property transaction process through the longstanding Energy Efficiency Rating (EER) system.

Every residential property offered for sale in the ACT must include an EER, providing prospective purchasers with a consistent and comparable measure of a home’s thermal performance.

Importantly, this information is available upfront, without cost to the buyer, and forms part of the standard decision-making framework.

With more than two decades of consistent application, the ACT’s EER framework is one of the most mature disclosure systems in the country.

Over time, it has not only normalised the presence of energy data in transactions, but has also influenced how that information is interpreted and used by the market.

Meeting a shifting energy baseline

The broader context is equally important. Rising energy costs and changing consumer expectations are placing greater emphasis on how homes perform, not just how they present.

For tenants in particular, the cost of heating and cooling is no longer a secondary consideration.

This is especially relevant in Canberra’s climate, where heating demand is significant and energy use can be materially higher than in milder parts of the country. In that context, the performance of a home has a direct and ongoing impact on household costs.

At the same time, regulatory momentum is building nationally. Several jurisdictions are exploring or implementing minimum energy standards for rental properties, signalling a shift towards a more consistent baseline across Australia.

A more informed property market

At its core, the EER system changes the nature of information available at the point of sale.

Rather than relying on assumptions or post-purchase discovery, buyers are equipped with a clearer understanding of how a property is likely to perform in day-to-day living conditions.

This has several practical effects:

• It brings energy performance into the same conversation as price, location and amenity.
• It enables more meaningful comparisons between properties.
• It highlights opportunities where targeted improvements may enhance both comfort and efficiency.

Over time, this has contributed to a market where energy efficiency is better understood—not as an abstract concept, but as a tangible attribute of a property.

The impact of this approach is increasingly visible in the data. Districts such as Molonglo Valley, encompassing suburbs like Coombs and Wright, now record some of the highest median energy efficiency ratings in the country, with averages above 6 stars.

This is not incidental; it reflects a combination of planning settings, building standards and a market that has become accustomed to considering energy performance as part of the broader value equation.

From obligation to practical tool

What is often viewed as a compliance requirement has, in practice, become a useful reference point within the ACT market.

Because the EER is standardised and widely understood, it can inform a range of decisions from pricing expectations through to renovation priorities. It also provides a starting point for conversations about upgrades, particularly where relatively modest improvements can deliver meaningful gains in performance.

There is also emerging evidence that energy performance is not simply informational. It is increasingly reflected in pricing behaviour. Higher-rated homes have, in many cases, demonstrated stronger price outcomes, suggesting efficiency is becoming part of how value is assessed rather than an afterthought.

This does not remove the cost considerations associated with energy upgrades, but it does provide greater clarity around where those investments may be most effective.

ACT's subtle point of difference

As the national market continues to evolve, differences between jurisdictions are becoming more nuanced.

In the Australian Capital Territory, the presence of an established, transparent energy rating system is one such distinction.

It does not dominate decision-making, nor should it. However, it adds a layer of information that supports more considered choices, whether for owner-occupiers or those approaching the market from an investment perspective.

Looking ahead, the ACT’s experience offers a practical reference point for other jurisdictions considering similar reforms. It demonstrates that transparency can be introduced in a way that supports informed decision-making without unduly disrupting the transaction process.

The challenge, as energy efficiency policy continues to evolve nationally, will be to ensure that any expansion of disclosure or minimum standards remains workable in practice.

Systems must be consistent, accessible and cost-effective avoiding unnecessary complexity or delays that could impact market fluidity.

In that respect, the ACT model highlights an important principle: when energy efficiency is embedded thoughtfully and supported by clear processes, it becomes less about compliance and more about clarity.