What is a healthy home?

A healthy home is one designed and built so its air, light, water, materials, temperature and acoustics actively support the people inside it — decisions made from the first sketch, then verified on site. We manage seven aspects on every project: air quality, natural light, water, materials and finishes, thermal comfort, the acoustic environment, and the electromagnetic environment.

What makes a home unhealthy?

Usually a combination of poor ventilation that traps moisture and pollutants, chemical off-gassing from finishes and furniture, condensation and mould inside badly-detailed walls, overheating or cold spots, and noise. Most of these are decided at design and build stage — which is exactly where they can be prevented.

How do you improve indoor air quality in a new home?

We manage moisture during construction so frames are dry before they are lined, ventilate mechanically with heat recovery so the home can stay sealed against the weather without going stale, and choose materials on what they off-gas — specifying paints, sealants and adhesives by their safety data sheet rather than a low-VOC sticker, and phasing out PVC where there is a practical alternative.

What are low-tox / low-VOC materials?

Materials chosen for what is actually in them and what they release into the air, not just how they look. We assess every material against six criteria — composition, off-gassing, moisture behaviour, thermal performance, durability and life cycle, and environmental impact — and keep the data sheet for every product specified in the homeowner handover pack.

Do you test that a home is actually healthy?

Yes. We take timber moisture readings before lining, run pre-line inspections of cavities and waterproofing, perform blower-door airtightness testing on Passivhaus and high-performance projects, commission the ventilation at handover, and hand over a material and safety-data-sheet file. For independent indoor-air, water or EMF testing after move-in we refer to qualified specialists.

Is a healthy home the same as a Passive House?

They overlap but are not identical. Passive House delivers the thermal-comfort and air-quality aspects through a verified performance standard; a healthy home is the broader picture — it also covers materials, natural light, water and acoustics. Our Passivhaus work sits at the heart of a healthy home, but a healthy home goes wider.

What about EMF and wi-fi in a healthy home?

We treat this honestly. The mainstream Australian position (ARPANSA) is that residential wireless exposure at typical levels has no established adverse health effect; a precautionary view, held by the building-biology profession, is that reducing exposure where it is easy is sensible. We do not claim health benefits either way — we provide the infrastructure that makes the choice yours: hardwired Ethernet to workspaces and bedrooms, considered router placement, and switched bedroom circuits where requested.

Healthy Homes

A healthy home is more than a beautiful one.

Most Australians spend close to 90% of their lives indoors. The way a home is designed, built and finished shapes the air people breathe, the light they live by, the water that runs through it, and the materials they touch every day — every day, for decades.

A healthy home is one where those decisions have been made with care from the very first sketch. It performs measurably better. It costs less to run. It feels different to live in. And it quietly looks after the people inside it for the life of the building.

We have invested significant time into training and study in this field, we have collaborated closely with some of the leading healthy homes, material science and building science experts to develop a sound understanding and framework.

This page sets out what we mean when we say healthy home — the seven aspects we work across on every project, the decisions a builder controls, and how we verify the work we have done.

A bright, naturally-lit kitchen in an SV Built home

The seven aspects

What makes a home healthy.

A healthy home is the sum of decisions made about its air, its light, its water, what it is made of, how it feels, how quiet it is, and what it costs the planet to build and run. The aspects below are the ones we actively manage on every SV Built project.

Daylight-filled hallway in an SV Built home, opening through full-height glazing to the garden beyond

01

Air quality

The air inside a typical home can carry more pollutants than the air outside it — chemical off-gassing from finishes and furniture, moisture and mould from poor ventilation, dust and particulates trapped behind the lining of badly-built walls. A healthy home is built to manage moisture during construction, vented mechanically so it can stay sealed against weather without becoming stagnant, and finished with materials chosen on what is in them, not on a label.
02

Natural light

The amount of natural light a home receives, how it changes through the day, and how the artificial light supplements it — all three shape sleep, mood, focus and long-term health. A healthy home is planned around the sun. Daylight reaches deep into the spaces people use most, glazing is sized to the orientation it faces, and the lighting at night is warm-spectrum where people are winding down.
03

Water

A healthy home gets water management right twice — once for the water that comes inside the home for people to drink, cook and bathe in, and once for the water that is kept out of the building fabric so the structure stays sound for decades. Whole-home filtration is roughed in at plumbing stage when the client wants it, and waterproofing is detailed using the latest German weather resistant membranes and inspected before it is hidden behind linings and cladding.
04

Materials and finishes

Every material in a home has properties beyond its appearance: what it is made from, what it off-gasses, its toxicity levels, how it behaves with moisture and UV, is it vapour permeable, how long it lasts, what it took to make, and what it becomes when the home is one day pulled down. We choose materials against six criteria — composition, off-gassing, moisture behaviour, thermal performance, durability and life cycle, and environmental impact.
05

Thermal comfort

A healthy home holds its temperature within a comfortable range without fighting the climate. Walls and roofs are insulated to perform, not just to comply. Glazing is specified for the orientation it faces. Thermal bridges are designed out, not patched over or hidden. The result is a home that stays cool in Adelaide summers and warm through Adelaide winters with a fraction of the heating and cooling energy a typical home requires — and with fewer cold spots, warm spots and draughts that a body has to constantly adjust to. This is the territory where our Passivhaus work lives.
06

Acoustic environment

A healthy home is a quiet one. Walls that block noise between rooms. Floors that do not transmit footsteps. Windows that hold out traffic. Glazing systems that double as thermal insulation often double as acoustic insulation — and we specify both at the same time. Mechanical equipment is sited and isolated so the system that ventilates the home does not become its loudest occupant.
07

Electromagnetic environment

This is the most contested aspect of healthy home design, and we treat it honestly. The mainstream public health position in Australia (ARPANSA) is that residential wireless exposure at typical levels has no established adverse health effect. A precautionary view, held by the building biology profession, is that reducing exposure where it is easy to do so is sensible. We do not claim health benefits either way. What we offer is the infrastructure that makes the choice yours — hardwired Ethernet to every workspace and bedroom at first fix, considered router placement, switched bedroom circuits where requested and even timed Wifi so you can sleep EMF stress free.

Environmental footprint

The home, and what it costs the world.

A healthy home is also a responsible one. There are two main carbon stories every house tells — the carbon it took to build, and the carbon it will use to run for the next fifty to one hundred years — and then there’s even a third, when its time is eventually up.

Embodied carbon

Concrete, steel, brick and aluminium dominate the embodied carbon of most Australian homes. We specify timber-framed, lower-carbon wall and roof systems where the structural and performance brief allows, source materials from suppliers who can document where they came from, and design for longevity so the carbon investment is not lost to a renovation in fifteen years.
Operational carbon

A Passivhaus uses around ninety per cent less heating and cooling energy than a typical Australian home. Over the life of the building, that is the larger of the two carbon stories by a wide margin. Our work on the thermal envelope is environmental work as much as it is comfort work.
End of life

Materials chosen on their full life cycle leave less behind. A healthy home is one that ages well and, when its time eventually comes, does not end up entirely in landfill, but can take on a new form for its next journey.

How we work

Healthy by design, then by build.

A healthy home is not a list of green products bolted onto a standard build. It is the result of every decision, in order, being made with the seven aspects in mind. That changes the design conversation, the specification, the build sequence, and the inspections.

At design

Orientation, glazing and daylighting reviewed against thermal and light aspects together
Material schedule built on chemistry, life cycle and source — not just look and budget
Mechanical ventilation strategy specified early, sized to the home it serves
Electrical plan reviewed for hardwired infrastructure and circadian-friendly lighting
Thermal envelope continuity drawn at construction-detail scale, not assumed

During construction

Frames protected from rain through construction and dried before being lined — moisture checked before close-up
NCC 2022 condensation management compliance delivered through detailing, not just certificates
Pre-line inspection and wall-cavity cleaning so construction dust does not become a permanent occupant
Adhesives, sealants and paints checked against their safety data sheets on site, with substitutes only where they meet the same chemistry brief
Waterproofing inspected and signed off before it is tiled over

At completion

Blower-door test to verify airtightness against the target air-change rate
Ventilation commissioning — confirming the system is moving the right volume of air, balanced and quiet
Material data sheets retained on file for every product specified, so the chemistry of the home is documented for the people who will live in it
A homeowner handover that explains how to live in the home you have just bought

Verification

We test it, not just promise it.

A healthy home is only healthy if the build delivers what the drawings promised. We use specific tests during construction and at handover so there is evidence of the result, not just intent.

For clients who want third-party confirmation after move-in, we can refer to independent indoor air quality, water testing and qualified EMF measurement consultants. This is specialist work we do not claim to deliver ourselves — but we know the people who do.

Timber moisture readings

Before lining — confirming the structure is dry before it is sealed in.
Pre-line inspections

Of wall cavities, services penetrations and waterproofing — recorded with photographs and notes.
Blower-door testing

At the end of the envelope work, on Passivhaus and high-performance projects.
Ventilation commissioning

At handover, with the ventilation rates documented.
Material schedule + SDS file

Delivered as part of the handover pack — every product specified, with the data sheet that backs it.

More in the journal. The thermal-comfort and air-quality aspects of a healthy home sit at the heart of our Passive House approach, and you can see how the seven aspects translate stage-by-stage through our build process.

FAQ

Healthy home questions.

What is a healthy home?: A healthy home is one designed and built so its air, light, water, materials, temperature and acoustics actively support the people inside it — decisions made from the first sketch, then verified on site. We manage seven aspects on every project: air quality, natural light, water, materials and finishes, thermal comfort, the acoustic environment, and the electromagnetic environment.
What makes a home unhealthy?: Usually a combination of poor ventilation that traps moisture and pollutants, chemical off-gassing from finishes and furniture, condensation and mould inside badly-detailed walls, overheating or cold spots, and noise. Most of these are decided at design and build stage — which is exactly where they can be prevented.
How do you improve indoor air quality in a new home?: We manage moisture during construction so frames are dry before they are lined, ventilate mechanically with heat recovery so the home can stay sealed against the weather without going stale, and choose materials on what they off-gas — specifying paints, sealants and adhesives by their safety data sheet rather than a low-VOC sticker, and phasing out PVC where there is a practical alternative.
What are low-tox / low-VOC materials?: Materials chosen for what is actually in them and what they release into the air, not just how they look. We assess every material against six criteria — composition, off-gassing, moisture behaviour, thermal performance, durability and life cycle, and environmental impact — and keep the data sheet for every product specified in the homeowner handover pack.
Do you test that a home is actually healthy?: Yes. We take timber moisture readings before lining, run pre-line inspections of cavities and waterproofing, perform blower-door airtightness testing on Passivhaus and high-performance projects, commission the ventilation at handover, and hand over a material and safety-data-sheet file. For independent indoor-air, water or EMF testing after move-in we refer to qualified specialists.
Is a healthy home the same as a Passive House?: They overlap but are not identical. Passive House delivers the thermal-comfort and air-quality aspects through a verified performance standard; a healthy home is the broader picture — it also covers materials, natural light, water and acoustics. Our Passivhaus work sits at the heart of a healthy home, but a healthy home goes wider.
What about EMF and wi-fi in a healthy home?: We treat this honestly. The mainstream Australian position (ARPANSA) is that residential wireless exposure at typical levels has no established adverse health effect; a precautionary view, held by the building-biology profession, is that reducing exposure where it is easy is sensible. We do not claim health benefits either way — we provide the infrastructure that makes the choice yours: hardwired Ethernet to workspaces and bedrooms, considered router placement, and switched bedroom circuits where requested.