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Canolfan Hyddgen

Location: Machynlleth, Powys
Completion Status: Completed August 2008 Occupancy: Occupied January 2009
Architect: JPW Construction Consultant: JPW Construction
Contractor: JPW Construction Client: Powys County Council
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WINNER: UK Passivhaus Awards 2013 - Non-domestic Category.

Canolfan Hyddgen, completed in January 2009, is a multi-occupancy Passivhaus office building and IT learning facility in Machynllleth, Wales. The building provides IT provision for the adjacent school, night classes, facilities for adult learners, meeting rooms, a drop-in centre and council service point. 


  • First non-domestic certified Passivhaus office in the UK
  • BREEAM rating of excellent with a score of 84.43% 
  • The first building in the world to achieve BREEAM & Passivhaus certifications simultaneously
  • Actual building performance mirrors or exceeds predicted PHPP values

UK Passivhaus Awards- PROJECT FACTFILE

Shortlisted for UK Passivhaus Awards 2013- Non domestic

Building4CHange article

JPW Construction

Powys County Council