The term "eco home" gets used loosely in Perth's building and design industry — sometimes to describe a home with a solar panel, sometimes to describe a home built to a genuinely rigorous environmental standard. The difference between these two things is significant, and understanding it is the starting point for making a genuinely informed decision about the kind of home you want to build.
What I mean when I talk about eco homes — or what Studio Origami designs under the banner of sustainable, healthy, high-performance homes — is a home where environmental responsibility and the quality of life for the people living inside it are not competing values but the same design intention. A home that is better for the planet is also, if designed well, better for the people in it. Here is why.
The five reasons Perth homeowners
choose to build an eco home
Thermal comfort year-round
Eco homes are significantly more comfortable than standard builds — warmer in winter, cooler in summer, with consistent temperatures throughout rather than hot rooms and cold corridors.
Dramatically lower running costs
A well-designed eco home uses a fraction of the energy of a standard Perth home — reducing energy bills by 40–90% depending on the approach, and removing the need for ducted air conditioning entirely in the highest-performing builds.
Healthier indoor environment
Better ventilation, natural materials, controlled humidity and reduced allergens — eco homes deliver an indoor environment that actively supports health rather than undermining it.
Longevity and durability
Homes built to higher construction standards — better insulation, higher-quality materials, more rigorous detailing — last longer, require less maintenance and retain their value better over time.
Environmental responsibility
Lower carbon emissions over the life of the building, reduced water consumption, ethical material choices — an eco home is a tangible contribution to the environmental future of Perth and WA.
Better resale value
Perth's property market is increasingly recognising the value of energy efficiency and sustainability. Homes with lower running costs and verified performance credentials command a measurable premium at resale.
Why Perth's climate makes
eco homes more important
Perth has one of the most energy-intensive residential climates in Australia. Our long, hot summers — with temperatures regularly exceeding 35°C for weeks at a time — mean that cooling is not an optional extra but a necessity for comfortable living. The standard response to this is to install a large ducted reverse-cycle air conditioning system and run it continuously from November through March.
The environmental cost of this approach is significant. Air conditioning accounts for the majority of energy consumption in a standard Perth home during summer — and as our grid still relies heavily on gas generation, this translates directly into carbon emissions. But the financial cost is equally significant: Perth energy prices have increased sharply and consistently over the past decade, with no sign of that trend reversing.
"Projections indicate that the annual average number of days above 35°C in Perth could increase from 28 currently to up to 67 days by 2070 without global action to reduce emissions."
— Australian Government, Climate Change Impacts in WA
This projection means that a home built today to standard minimum compliance will become progressively more uncomfortable and more expensive to run as Perth's climate shifts over the coming decades. An eco home built to a higher performance standard — with superior insulation, passive solar design and efficient ventilation — will become more valuable, not less, as the climate challenge intensifies.
"The question is not whether eco homes cost more to build — it is whether you can afford the lifetime cost of building one that isn't."
The healthy home dimension —
often overlooked
One of the most consistently underestimated benefits of an eco home is what it does for the health of the people living inside it. The connection between building quality and human health is well-documented — and in Perth's climate, where we spend more time indoors than almost any other city in Australia, it is particularly significant.
Standard Perth homes rely on opening windows for ventilation — which means during the long summer months when windows are closed against the heat, the air inside becomes progressively stale. CO₂ levels rise, allergens accumulate and humidity builds. The materials from which most homes are built and finished — synthetic carpets, certain paints, MDF cabinetry — off-gas volatile organic compounds that accumulate in poorly ventilated spaces.
A well-designed eco home addresses this directly. Mechanical heat or energy recovery ventilation continuously cycles fresh, filtered outdoor air through the building regardless of whether windows are open or closed. Natural materials — timber, stone, lime-based paints — reduce the indoor chemical load significantly. The result is a home that smells clean, maintains low CO₂ levels and provides a genuinely healthier environment for the family living inside it.
The health effects are measurable. Better sleep quality from consistent indoor temperatures. Improved concentration and reduced fatigue from lower CO₂ levels. Reduced asthma and allergy symptoms from lower allergen concentrations. For families with young children, the elderly, or anyone with respiratory conditions, the difference is particularly significant.
What does an eco home
actually cost in Perth?
The most common objection to eco home design is cost — and it deserves an honest answer. A well-designed eco home can cost more to build than a standard minimum-compliance house. But the gap is often smaller than people assume, and the full financial picture is more nuanced.
At the entry level — a home with good passive solar orientation, superior insulation, double glazing and considered natural ventilation — the cost premium over a standard 7-star build might be modest or negligible, particularly if these decisions are made at the design stage rather than retrofitted later. Most of the cost premium in eco home design comes from doing things right the first time rather than adding expensive technology.
At the higher-performance end — a certified Passive House with airtight construction, continuous insulation and mechanical heat recovery ventilation — the premium is real, typically 15–25% above a standard build. But this premium needs to be weighed against the full lifetime cost of the home: dramatically lower energy bills every year, the avoided cost of ducted air conditioning installation and replacement, lower maintenance costs, and a home that commands a higher resale value.
The Aughton House in Bayswater is a compelling example of what is achievable without necessarily pursuing full Passive House certification. Through careful passive solar design, solar panels with battery storage, heat-pump hot water, mechanical ventilation and ethical material specification, the home achieves 83% lower CO₂ than an average new home — at a cost that was comparable to a well-specified standard build.
What to look for in
an eco home designer in Perth
Not all eco home claims are equal. In Perth's building and design industry, "sustainable" and "eco" are marketing terms that can be applied to homes that meet minimum code compliance. When choosing a designer for a genuine eco home in Perth, look for:
- Passive House certification or training — the international standard that guarantees genuine high performance, not just good intentions
- A track record of completed projects with verifiable energy performance data or independent awards
- An approach that integrates sustainability from the start — orientation, passive solar, insulation and ventilation designed in from day one, not added as afterthoughts
- Knowledge of healthy home principles — material specification, indoor air quality and the connection between building performance and occupant health
- Honest cost conversations — a designer who gives you a realistic picture of costs and benefits across the lifetime of the home, not just the construction contract
Studio Origami's approach: Every project we design integrates sustainable and healthy home principles from the very first sketch. Whether you are pursuing full Passive House certification or simply want a home that performs significantly better than the standard — we help you understand what's possible on your site and your budget, and design a home that will serve your family and the environment for generations.