Beattie Passive Project
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The TCosy™ solution is flexible, versatile and accommodates any size or shape, allowing complete freedom with regards to choice of vernacular and style.

TCosy™ not only transforms the exterior of a house, but also provides you with all the long terms environmental and health benefits of Passivhaus living.

Retrofit Project – Oxfordshire

Brief: To extend and retrofit a 1970s three-bedroomed house to Passivhaus standard while aesthetically updating it to create a light, modern and energy-efficient family home.

Project scope: Design and build of a two-storey extension to the west side of the house and a first floor extension above the garage to the east.

The extensions were built to Passivhaus standard, and the existing building retrofitted with the Beattie Passive TCosy™ system, including the loft space and underneath the house to form a highly insulated airtight 'box'.

High performance windows were fitted throughout and a mechanical ventilation heat recovery system installed to maximise energy efficiency, ensuring no additional heating system was required.

» View the full Retrofit project

Oxfordshire Retrofit
"Having no central heating system was a real leap of faith but after two winters in our lovely, light retrofitted house, it's a revelation that we're warmer and more comfortable than in any other house we've lived in".

Helen Beare