Green Building Store is now 21°

Chiswick Eco Lodge

RDA Architects have designed a unique three bedroom Passivhaus-certified house on the site of a former garage in Chiswick. The project is a Finalist in the Urban category of the UK Passivhaus Awards 2016. 21°s MVHR Design Service supplied and designed the MVHR system at the project.


The 110m2 project has been built with reinforced concrete and blockwork with external insulation, and offers a contemporary, bright and spacious design. To help blend in with the surrounding Edwardian street there is a ‘living wall’ and the lower storey has been sunk below street level so that 50% of the building’s total volume is hidden.

Heat recovery ventilation

21° designed, supplied and commissioned the PAUL Novus 300 MVHR system at the project.

We’ve used 21°’s MVHR Design Service for many of our projects. Each time we have used them we have found their technical team extremely knowledgeable and hands on. Their expertise means that a contractor can easily install a MVHR system for the first time with no major problems. The quality equipment and service that comes with it means that we’ll certainly be using 21° again!

Richard Dudzicki, Director of RDA Architects

Project details


RDA Architects

Life changing homes