Tell us about your build

Start with a few details and we will take it from there. Every enquiry gets a reply within two working days, from the builder who runs our sites.

Talk about your build

Tell us where you are at, a section with plans or just the itch to stop being cold. You will talk with Callum Tait, who runs our builds, not a sales line.

  • 03 555 0117
  • Mon to Fri, 8am to 5pm
  • 14 Elms Street, Stoke, Nelson 7011

Questions we get asked

Is a passive home a lot more expensive?
It costs more to build, usually 8 to 12 percent more than a standard new home in our region. That buys triple glazing, deeper insulation, airtight wrapping and the ventilation system. Most owners earn it back through years of near zero heating bills.
What are the running costs really like?
Heating is the big one, and it is small. Our homes typically hold near twenty degrees through a Nelson winter on a fraction of the power a standard house draws, and many owners never fit a heat pump at all.
Can you make my existing house passive?
We can make a lot of it warmer and drier through a deep retrofit: better insulation, airtightness work, new glazing and ventilation. A full passive result is hard to reach in an old home, and we will tell you honestly how far yours can go before you spend a cent.
How long does a build take?
Most of our homes take nine to twelve months on site once consent comes through, depending on size and section. We give you a real programme before we start and keep the same crew on it the whole way.
Do we get certification?
You can. Every home is built to passive house principles, and we can take yours through to full certification or document it for a Homestar rating if your lender, your council or your own peace of mind wants the paperwork.
EcoBuild NZ

Warm, dry, low-energy homes, built around Nelson and Tasman by Licensed Building Practitioners.

03 555 0117

14 Elms Street, Stoke, Nelson 7011

© 2026 EcoBuild NZ Ltd. A fictional business, shown as a website demo.

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