Passive House Architects in Melbourne

Certified Passive House & Engineered Timber Architects

Sunpath Architects is a Melbourne-based architecture practice specialising in certified Passive House design and renewable engineered timber and prefabricated construction across Victoria.

The practice is led by Niall O Healaithe, a practising architect since 2006.

He first registered in Ireland in 2010 and has been practising in Melbourne since 2012. He is registered with both the Architects Registration Board of Victoria and the Victorian Building Authority (now the Building and Plumbing Commission) since 2019.

Niall has been a Certified Passive House Designer since 2014, among the earliest practitioners in Australia to achieve that qualification.

From our Albert Park studio, we design certified Passive House and high-performance engineered timber and SIPs homes across Melbourne’s inner suburbs and Victoria’s most sought-after regions, including the Mornington Peninsula, Macedon Ranges, Yarra Valley, Surf Coast and High Country.

Many of our clients are planning a long-term home: a thoughtful tree-change, a refined sea-change, or an off-grid and low maintenance residence deliberately designed for the next chapter of life. Our work is shaped by that ambition, to create architecture that performs quietly and endures.

To understand how we work with you from first conversation through to completion, see our architectural services and design process

Why Work With a Certified Passive House Architect in Melbourne?

Passive House — or Passivhaus — is the world’s leading building science standard for low-energy residential construction.

It is not a style but a rigorous, measurable methodology focused on thermal comfort, air quality and long-term energy performance.

As experienced Passive House architects in Melbourne, we integrate building science with refined architectural design to create homes that offer many benefits…

Passive House Benefits

Stable Comfort in Every Season

Through high levels of insulation, elimination of thermal bridges and carefully detailed airtight construction, indoor temperatures remain consistent throughout the home — even during Melbourne’s heatwaves and winter cold spells — without reliance on conventional high-energy heating and cooling systems.

Continuous Fresh, Filtered Air

Mechanical heat recovery ventilation supplies a constant flow of filtered fresh air while maintaining energy efficiency. This supports respiratory health, reduces dust and pollen, and eliminates the condensation issues common in conventional Australian construction.

Acoustic Calm

High-performance glazing and an airtight envelope significantly reduce external noise, creating quiet, restorative interiors — whether the site is an inner Melbourne suburb or an exposed rural hillside.

Long-Term Energy Efficiency

Certified Passive House construction can reduce heating and cooling energy demand by up to 90% compared to standard building practice, offering long-term cost stability and greater resilience as energy prices rise.

For many of our clients — particularly those designing a home for retirement or later life — Passive House is ultimately about comfort, predictability and peace of mind.

Read our full guide on designing to achieve the passive house standard here.

Engineered Timber, CLT & Modern Methods of Construction

Environmental responsibility and architectural beauty should not be in conflict.

Our projects frequently integrate prefabrication and engineered timber systems such as cross-laminated timber (CLT), glue-laminated beams (glulam) and prefabricated Structural Insulated Panels (SIPs) to deliver durable, low-carbon and precisely constructed homes.

Benefits of mass timber and prefab construction

Reduced Embodied Carbon

Responsibly sourced mass timber stores carbon rather than emitting it, offering a significantly lower embodied carbon profile than conventional concrete and steel construction.

Precision Prefabrication

Digitally modelled and fabricated off-site, CLT, glulam and SIPs systems enable highly accurate airtight construction, faster assembly and improved quality control — particularly valuable on constrained urban sites and complex regional locations.

Structural Clarity & Natural Warmth

Mass timber allows generous spans and open-plan living with fewer structural interruptions. Exposed timber interiors provide natural warmth and tactile depth that many clients value when creating a long-term home.

For clients specifically seeking an architect experienced in CLT, glulam or SIPs construction in Melbourne or regional Victoria, our portfolio demonstrates practical, built expertise across multiple certified projects.

Explore our full guide to engineered and prefabricated mass timber here.

Designing for Climate in Victoria's Most Desirable Locations

Victoria’s coastal and regional environments demand thoughtful, site-specific design. We have extensive experience designing for bushfire attack level requirements, coastal salt exposure and wind loads, off-grid and solar-optimised sites, heritage-sensitive urban infill, and the significant temperature swings of elevated inland climates.

Every project begins with a careful reading of the site: its orientation, prevailing winds, seasonal light and landscape character; before form, structure and material are resolved. We believe we are borrowing resources, not consuming them, and that what we build should work with the natural systems that sustain us. Read more about our approach and values.

Designing the Next Chapter of Your Story

Building a certified Passive House or engineered timber home requires early integration of architecture, structure and building science. We provide full architectural services from feasibility and concept design through planning approvals and construction, ensuring that performance objectives are maintained at every stage.

Whether you are searching for a Passive House architect in Melbourne, exploring CLT or glulam construction, or planning a tree-change or sea-change residence in regional Victoria, we welcome an early conversation.

Whether you are considering a tree-change in regional Victoria, a refined coastal residence, or a certified Passive House in Melbourne, an early conversation allows us to explore feasibility, site potential and performance ambitions together.