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The PH15 Construction System

Pioneering Passivhaus & NetZero Homes

Designed for economy

 PH15 is a cost-effective, efficient and simple way of building,  radically reducing your homes running costs and maintenance burdens.

Designed for well-being

PH15 ensures the air you breathe is fresh, without pollutants, and eliminates all mould. This helps to keep you healthy and able to enjoy a quiet, super comfortable home.

Designed for the planet

PH15 delivers future energy standards today while also radically reducing upfront carbon emissions. PH15 is a home with a conscience. 

Achieve more, with less

In the UK we continue to construct new houses with minimum insulation, lots of thermal bridges and air leakiness. The results are houses that are carbon and energy intensive, are expensive to heat and suffer from condensation and poor internal air quality. PH15 is an optimized construction solution that meets the 2025, 2030 and 2050 Climate Change Energy Targets, and can deliver Passivhaus certified and NetZero ready new housing today.

PH15 has radically less upfront embodded carbon by using small section, engineered timber frames and natural breathable insulations. With vastly less energy usage it can maintain comfortable internal temperatures. And with a super efficient ventilation system it can achieve a better indoor climate with fewer pollutants.

PH15 is tried and tested, avoids undue cost and complexity, makes achieving the necessary air-tightness targets easier and includes technical support and training for architects and builders.

Adopt the award winning PH15 solution for a rapid and successful transition to building homes that don’t cost the earth, are comfortable, healthy and eliminate fuel poverty . . . MORE COMFORT, LESS FUSS

Ashden’s 2022-25 strategy focuses on building more equal and sustainable societies: societies powered by low-carbon organisations and policies, liveable cities, good green jobs and clean energy for all.   We will commit to discovering, amplifying, scaling and connecting the brightest climate innovations. In particular, we will elevate organisations and projects that boost green skills, jobs and livelihoods, and create ecological and social benefits for all.

Ashden Awards 2020

Passivhaus Homes Ltd Winners of the Sustainable Built Environment category Ashden Award 2020

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What is a Passivhaus?

Designed for ultra-low energy consumption combined with consistently good air quality. . . .

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About Us

Passivhaus Homes is based in Totnes in South Hams, Devon and in North London

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Passivhaus Trust Member
Anti-greenwash Charter - a structured framework to ensure transparent and honest environmental communications.
Buildoffsite Property Assurance Scheme (BOPAS) was developed to address the concerns and perceived risks associated with innovative construction. BOPAS is recognised by the principal mortgage lenders as providing the necessary assurance underpinned by a warranty provision, that the property will be readily mortgageable for at least 60 years.
certified passivhaus consultant
Buildoffsite Property Assurance Scheme (BOPAS) was developed to address these concerns and perceived risks associated with innovative construction. BOPAS is recognised by the principal mortgage lenders as providing the necessary assurance underpinned by a warranty provision, that the property will be readily mortgageable for at least 60 years.