Who you build with

A small Nelson crew who would rather hand you a test result than a brochure. The same people design your home, model it and build it, start to finish.

The people on your build

Callum Tait

Founder and build lead

Started EcoBuild in 2013 after ten years framing houses that were cold the day they were handed over. Runs every build and answers the phone himself.

Ngaio Whitiora

Design and energy modelling

Trained in building science and runs the model on every home. If a wall is going to lose heat, she finds it on screen long before it is ever built.

Reuben Frost

Site foreman and lead carpenter

Leads the crew and owns the airtight detailing. Treats a taped junction like finish carpentry, because on a passive house that is exactly what it is.

Certifications and performance

We build to recognised standards and prove the result with a test, not a brochure.

Built to passive house principles

Continuous insulation, an airtight layer, thermal bridge free detailing and heat recovery ventilation on every home. We can build through to full certification when you want it.

Homestar ready

Our standard build targets the higher end of the Homestar scale for warmth, ventilation and running costs, and we document it for the rating when a lender or council asks.

Airtightness tested, not claimed

Every home gets a blower door pressure test and you get the result on paper. We would rather show you the number than tell you the house is tight.

Licensed and guaranteed

The work is carried out by Licensed Building Practitioners and carries a structural guarantee, with every producer statement and warranty handed over in one folder.

Nelson and Tasman

We build across Nelson and the Tasman district, close enough to keep the same crew on your site every day. If you are within about an hour of our Stoke workshop, we would like to hear from you.

  • Nelson City
  • Stoke
  • Richmond
  • Atawhai
  • Tahunanui
  • Wakefield
  • Brightwater
  • Mapua
  • Ruby Bay
  • Motueka
  • Hope
  • Appleby
  • Wakapuaka

Building somewhere near here that is not on the list? Ask us anyway.

“I checked our first winter power bill three times because I was sure it had to be wrong. It was not wrong.”

Mere KereamaAtawhai, in her home since 2024

“Our old place had wet glass every morning of winter. Here the washing dries inside overnight and the kids have stopped getting the winter coughs.”

Hannah and Pete SalisburyStoke, building finished 2025

“We came from a villa you could see your breath in. Now the whole house sits at one quiet temperature and we have never once switched on the heater we bought out of habit.”

Priya and Tom FenwickRichmond, two winters in

Build with a small Nelson crew?

Send us a few details about your build. You will talk with the builder who runs our sites, not a sales line, and hear back within two working days.

Talk about your build
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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