Zanetto Builders — Forever Home Builders

Zanetto Builders

Energy Efficient Home Builders Tasmania

We design and build energy efficient homes across Tasmania — built for comfort, lower energy demand and long-term performance.

Zanetto Builders designs and builds energy-efficient homes across Tasmania, treating each home as a complete system — orientation, envelope, glazing and ventilation working together. The result is lasting comfort, lower running costs and stable temperatures year-round. For the highest performance, we build to the certified Passivhaus standard, including a home certified at just 10 kWh/m²·yr heating demand.

We design and build energy efficient homes across Tasmania that prioritise comfort, long-term performance, and considered design.

By treating the home as a complete system — orientation, building envelope, glazing, ventilation, and services working together from the first design decision — we create homes that use less energy, maintain more stable temperatures, and perform consistently throughout every season, without compromising the architecture.

Our Approach for Energy Efficient Homes

Site & Orientation

Using passive solar principles and site-specific design to reduce heating and cooling demand before construction begins.

Building Envelope Design

Creating a continuous thermal envelope through insulation, glazing, airtightness, and thoughtful detailing.

Material & System Selection

Selecting materials and systems that improve durability, efficiency, comfort, and long-term performance.

Construction Delivery

Protecting performance targets during construction through quality control, testing, and precise execution.

Every stage is managed to ensure the home performs efficiently, remains comfortable throughout the year, and delivers long-term value for its owners.

Why High Performance Homes Feel Different

Comfort is designed in. Most people associate energy efficiency with lower power bills, but the first thing our clients notice is comfort. Stable indoor temperatures, fewer draughts, warmer surfaces in winter, and cooler spaces in summer create a living experience that standard homes simply struggle to achieve.

Performance starts with the building envelope. The biggest gains in energy efficiency come from what you can't see — insulation continuity, airtightness, performance glazing, and thoughtful detailing work together to reduce energy demand while improving durability and indoor comfort.

Better homes for the long term. Energy efficient homes aren't just cheaper to run; a properly designed building envelope helps manage moisture, reduce condensation risk, and protect the structure for decades. They're designed to perform as well in twenty years as they do on the day they're handed over.

Learn more about Passivhaus.

Why Zanetto Builders

Zanetto Builders specialises in energy efficient homes and high performance homes that combine building science, architectural quality, and long-term durability. Every home we build applies the same performance fundamentals — thermal continuity, controlled ventilation, considered glazing, and a properly sealed building envelope — to create homes that are comfortable, efficient, and built to perform for decades.

— Kyle Zanetto, Director

Frequently asked questions

Energy Efficient Home Builders Tasmania — your questions answered

What is an energy efficient home?+

An energy efficient home is designed to reduce the amount of energy required to maintain comfortable indoor temperatures. Through insulation continuity, airtightness, performance glazing, and considered orientation, the home stays warmer in winter and cooler in summer while requiring less mechanical heating and cooling.

How much does it cost to build an energy efficient home?+

Energy efficient homes typically cost around 5–15% more than standard construction, depending on the performance targets and systems selected. That additional investment is often recovered through lower running costs, improved comfort, and increased durability over the life of the home.

Are energy efficient homes more expensive to build?+

Usually, but only modestly. The additional investment generally comes from improved insulation, better glazing, airtightness detailing, and ventilation systems. These upgrades improve performance, reduce energy demand, and contribute to a healthier and more durable home.

What features make a home energy efficient?+

The most important features are continuous insulation, a well-sealed building envelope, high-performance glazing, passive solar design, and controlled ventilation. When these elements work together as a complete system, the performance improvements can be substantial.

What is the difference between an energy efficient home and a high performance home?+

Energy efficient homes reduce energy demand and operating costs. High performance homes typically take a more rigorous approach through tested airtightness, verified insulation continuity, mechanical ventilation, and construction-stage performance verification. Passivhaus is the most recognised certified high-performance standard.

Does orientation really matter when designing a home?+

Absolutely. In Tasmania's climate, correct orientation can dramatically improve passive solar gain in winter while reducing overheating in summer. It's one of the most cost-effective performance decisions available and one of the hardest to correct later.

What insulation is best for an energy efficient home?+

The most important factor is not the product itself but how it forms part of the overall system. Continuous insulation without gaps or thermal bridges will outperform higher-rated insulation that is poorly detailed or installed.

Can energy efficient homes be customised?+

Completely. Energy efficiency is a performance framework rather than a design style. Every home can be customised to suit the client's brief while still incorporating the principles that improve comfort, efficiency, and durability.

How do energy efficient homes perform in Tasmania's climate?+

Very well. Tasmania's cool temperate climate is ideally suited to passive solar design and high-performance building principles. Properly designed homes are warmer, drier, and more comfortable while requiring significantly less energy to operate.

Are energy efficient homes healthier to live in?+

Yes. A well-sealed and properly ventilated home delivers fresh, filtered air while helping manage moisture, mould, and indoor air quality. Consistent temperatures also contribute to a healthier living environment.

How long do the benefits of an energy efficient home last?+

The performance benefits are built into the structure of the home itself. Insulation continuity, airtightness, and considered glazing continue to perform for decades when properly designed and maintained.

Do you build to Passivhaus standard?+

Yes. We deliver both certified Passivhaus projects and high-performance homes that apply the same building science principles. Whether certification is pursued or not, the focus remains on comfort, durability, and long-term performance.

Build a Home That Performs for You

An energy efficient home delivers more than lower running costs. It creates a more comfortable, durable, and enjoyable place to live every day.

Speak with our team about building an energy efficient home designed for Tasmania's climate and your long-term lifestyle goals.

As featured on

The Local ProjectMy Aussie Build (Apple TV)The Construction SourceThe MercuryThe ExaminerThe Good Builder

As heard on

Level UpThe Mindful BuilderThe ToolshedConstruction ChampionsThe Contracting HandbookGrow A Small BusinessBuild InsiteThe Paul Norton Podcast

Accredited & proud member of

Master Builders Tasmania — Member
Housing Industry Association — Member
Australian Passive House Association — Member
Passive House Institute — Certified

Let's build your Forever Home.

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