Find a PHINZ sponsor or member

Our sponsors and members provide a range of services and products for use in Passive House projects. The directory includes Certified Passive House professionals, who have successfully completed the requirements of the Passive House Institute to gain the following qualifications:

Certified Passive House Designer Certified Passive House Consultant Certified Passive House Tradesperson Passive House Certifier Certified Passive House Component


Three Line Studio

104/28 Waterloo Quay, Wellington, 6140
28 Waterloo Quay Wellington 6011 NZ

Amanda Bulman and Denis Chin are the directors of Three Line Studio, and have been practising together since 2001.  They are both registered with the New Zealand Institute of Architects and have a diverse team of architects and technicians working with them out of the historic ‘Shed 21’ building on the Wellington waterfront.




Certified Passive House professionals
Certified person Certification expiry date Certification types
Denis Chin January 30, 2025 Certified Passive House Designer