Passivhaus
North Shore
Agathē builds to the certified Passivhaus standard across the North Shore — harbourside peninsulas to the leafy upper ridges — bringing measured building science to Sydney's establishment addresses.
Agathē builds to the certified Passivhaus standard across the North Shore — harbourside peninsulas to the leafy upper ridges — bringing measured building science to Sydney's establishment addresses.
A certified Passivhaus is measured, not promised. An airtight, highly insulated envelope with continuous filtered fresh air keeps the whole home within a few degrees year-round — without leaning on air conditioning. The result is a home that is quiet, free of draughts and condensation, dramatically cheaper to run, and independently certified to perform exactly as designed.
The North Shore's homes are grander than they are comfortable. Along the harbour — Mosman, Longueville, Kirribilli, Castlecrag — humid marine air works on heritage fabric that was never sealed against it. On the upper ridges — Wahroonga, Killara — winters bite harder than anywhere in Sydney, and the gracious older homes leak warmth from every high-ceilinged room. Passivhaus brings measurement to a market that has run on appearances: airtight, insulated envelopes that hold stable warmth through frosty mornings and humid summers alike, certified glazing that keeps harbour views without the winter cold, filtered ventilation that ends the condensation cycle in period homes, and independent testing that proves the work. New builds and deep renovations, delivered by a Certified Passivhaus Tradesperson.
Builder-led delivery of custom homes and Passivhaus builds, managed end to end.
Start the right way with our PAC-certified process — aligning design, budget and timeline before you build.
We work alongside your architect from the first sketch, so Passivhaus performance is designed in, not bolted on.
Scandinavian-inspired homes and cabins built to a healthy, high-performance standard.
Partial to full-scale renovations that transform your existing spaces into healthy, beautiful family living environments.
From design to delivery, we manage every detail for a smooth, on-time, on-budget build.
Whether you are at the early thinking stage or ready to move, we are happy to have an honest conversation. No obligation. We will tell you if we are not the right fit.