our people

Today we work with really diverse clients to produce truly ecological, healthy & beautiful housing – providing real comfort and less cost to the environment, with the added benefit of minimal running costs. Energy modelling and environmental assessment informs everything we do.

Hiberna provides a full service, from concept and planning, through design and analysis, to building and finishing. If you have a question about natural building or energy, we would love to help!

meet our team

Jessica Eyers


BA, Msc (dist) Architecture: Advanced Environmental and Energy Studies, CPHD, LBP

Jessica is an environmental building consultant and architectural designer based in Wanaka. Jessica holds a BA in Architecture and an MSc in Environmental Architecture with distinction and has completed many additional courses and research projects in this field over the last 15 years. She was the QLDC/BRANZ Eco Design Advisor between 2007 and 2009. She has been a Certified Passive House Designer since 2013. She has been a peer-review assessor for the NZGBC for over 10 years and was considered one of their most experienced assessors. She is a design LBP with over 10 years experience designing in New Zealand.  She has received training from the Fraunhofer Institute (via their NZ provider) in and hygro-thermal modelling (WUFI), and is experienced in the use of PHPP and THERM as thermal modelling tools. She has taught introductory courses on low energy design and Passive House since 2015. She has submitted building consents for straw bale buildings in 3 districts. She has presented papers at SB07 (Sustainable Building Conference 2007), the International Straw Bale Building Conference 2016 and the European Strawbale Building Conference in 2017.

Ben Eyers


Ben Eyers LBP, Nat Cert Carpentry, Nat Diploma

Ben has worked on low energy buildings since 2008 when he built his first highly insulated, passive solar, airtight building. He understands airtight construction, achieving below n0.5ACH in a project in 2017.He has been a plasterer since 2008 and has poured many hundreds of hours into research and development of natural plasters, particularly for strawbale buildings. In 2016 he had an article published in the journal of the Building Limes Forum in the UK on his work on low cost lime kilns in the Gambia is West Africa. He specialises in tadelakt, a traditional Moroccan lime plaster that is waterproof. He is one of the few WUFI trained builders in NZ, a tool which he uses to assess the performance of natural materials such as straw, clay and lime. Ben has built in timber frame, SIPs, straw and rammed earth but he believes that for a building to be truly sustainable it needs to be built of low impact materials.

We believe that buildings do not need to be detrimental to the environment and to health. Environmental buildings are good buildings: well designed, well built and pleasant and healthy to be in