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The Beattie timber frame passive house system has been used to deliver award winning housing developments across the UK.

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Our passive building systems are highly versatile, with delivery options ranging from onsite construction to offsite panelised solutions and full volumetric modular builds.

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We are committed to Passivhaus and its proven benefits. More than 1,000 people now live in a Beattie home built using our certified passive house timber frame technology.

Simplifying Passivhaus

Traditional timber framed build systems include numerous joints between the floor, walls and roof, creating unavoidable points of heat loss. Our certified passivhaus timber frame system resolves this by forming a continuous, joint free thermal envelope.

The structure is housed within a treated timber frame and filled with high performance injected insulation across the entire floor, wall and ceiling cavities. This creates one continuous insulated layer with no thermal bridges, no air leakage and no compromise in performance.

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Our Passivhaus certification

Exceptional Passive House Performance

Our passivhaus building system is engineered to deliver proven energy efficiency and outstanding living comfort. Every build achieves exceptional levels of airtightness, thermal performance and occupant wellbeing.

  • Certified by the Passivhaus Institute

  • Up to 90% or more reduction in heating demand

  • Low or near net zero carbon emissions

  • Higher indoor comfort through stable temperatures

  • Healthier homes with improved air quality

  • Thermal bridge free structure

  • Thermal efficiency with U values of 0.11 and below

  • Mechanical Ventilation with Heat Recovery (MVHR)

What makes us unique?

We build beyond the classic Passivhaus standard, offering additional benefits that enhance the strength, comfort and longevity of every timber passive house we construct.

  • Protection from fire, flood and radon
  • Sound protection
  • Longevity – built to last

Read more about the benefits and tech specs of our build system.

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Why a Timber Frame Passive House?

Timber is one of the most sustainable and adaptable structural materials and pairs perfectly with Passivhaus principles. Our certified passive house timber frame approach offers:

  • Precision engineering for airtightness and performance

  • Faster, cleaner and more predictable construction

  • Reduced embodied carbon compared with traditional materials

  • Perfectly suited to modular and offsite manufacturing

  • A durable structure designed for future climate demands

When combined with our patented continuous insulation system, the result is a timber framed build system that delivers unparalleled energy performance with long term resilience.

What’s included in our Passivhaus Timber Frame System?

Our complete passivhaus building system includes:

  • 300 mm deep twin stud structural timber frame used for both walls and roof.

  • Insulation beads injected into all cavities to deliver a continuous insulated layer with no gaps or joints.

  • Airtightness layer applied to the inner face of the structural frame, to achieve 0.6 ACH@50 Pa.

  • Continuously insulated envelope across walls, roof and floor, eliminating thermal bridges and preventing convection looping or thermal bypass.

  • Integrated wall, roof and ground build up including internal and external 9 mm fire and racking boards, service voids, breather membrane and ventilated cavity.

  • Flexible external finish options, supported by the ventilated cavity system (render, brick slips, timber cladding or full brickwork).

  • Fire, flood and radon protection built into the structure as standard.

  • Enhanced acoustic performance, with independent wall and ceiling designs achieving up to 65 dB sound reduction.

This provides a predictable platform for delivering high performance new build homes, modular units and community housing at scale.

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