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Planning or developing a Passive House or high-performance building and need specialist input? We specialise in Passive House, high-performance and low-carbon consulting.
If you’re looking for an architect to design your Passive House or high-performance building, we can also do that. 
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Consulting Services
We offer a range of consulting services including full Passive House design, thermal bridge modelling, energy efficiency and embodied carbon modelling and guidance, and sustainable design advice.
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Stage 1 - Initial
Review – initial review & comment on the site, brief and initial concept design
Guide – provide passive house guidance and support to the architect/designer
Stage 2 - Preliminary
Review – review & comment on the current design
Model – initial modelling using designPH & PHPP software
Guide – provide specification
requirements for the thermal & airtight envelope (incl windows & doors) & the ventilation system
Iterate – repeat the above if necessary – initial modelling using designPH & PHPP software
Stage 3 - Detailed
Review – review & comment on the current design, specification & construction detailing
Model – detailed modelling using designPH & PHPP software. And thermal bridge modelling for heat loss & condensation risk using Flixo software
Guide – passive house product and component selection, liaise with specialist suppliers
Submit – collate & submit pre-construction information to the passive house building certifier
Stage 4 - Procurement
Tender – obtain tender prices from one or multiple builders
Contract – contract documents, insurances etc.
Stage 5 - Construction
Observation – site visits at key stages to observe adherence to PH requirements
Support – answer contractor PH queries, check & vet any variations
Model – update modelling for variations, site testing & commissioning results
Testing – blower door tests at close-in & practical completion
Submit – collate & submit construction information to the certifier
All Stages
Carbon – embodied and whole of life carbon modelling and guidance

Sustainability - low-impact materials, off-grid and net-zero energy, water conservation etc
Download Process Document
Treated Floor Area:


Heating Demand:


Passive House Classic

Echo House

A striking new home set on a steep site above the Kapiti Coast, designed to take in expansive views to the west. The extensive western glazing is shaded by automated external blinds and a wrap-around verandah.
Ready to take the next step?
+64 22 4169 499
[email protected]
PO Box 1707
Paraparaumu Beach 5252
New Zealand
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