Daryl Combes, Founder & Managing Director, Ecotectural Home Builders
Author

Daryl Combes

Founder & Managing Director, Ecotectural Home Builders

Daryl Combes founded Ecotectural Home Builders in 2006 to raise the standard of architectural and Passive House construction across Nelson Tasman. He leads every project hands-on, with a focus on open-book transparency, complete project management, and homes built to perform for 50 years and more.

  • Passive House design and construction
  • Architectural design and build
  • Open-book pricing and project management
  • High-performance building systems
  • Building in Nelson Tasman
Guides by Daryl Combes← All guides
Is a Passive House Worth It in New Zealand?. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

Is a Passive House Worth It in New Zealand?

Warm in winter, cool in summer and cheap to run: see whether a Passive House is worth the premium for a Nelson Tasman home, and what you get back.

8 min read
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Open-Book vs Fixed-Price Building Contracts in NZ: A Plain-English Guide. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

Open-Book vs Fixed-Price Building Contracts in NZ: A Plain-English Guide

Which building contract actually protects your budget? Fixed-price, cost-plus and open-book compared in plain English, and who really carries the risk.

8 min read
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Why You Should Engage a Builder Before an Architect. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

Why You Should Engage a Builder Before an Architect

Avoid the over-budget tender trap: why bringing your builder in before the architect keeps you in control of both the design and the price.

8 min read
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Building in Nelson Tasman: What Makes This Region Different. A Nelson Tasman Place & Projects guide from Ecotectural Home Builders, Nelson Tasman.
Nelson Tasman Place & Projects

Building in Nelson Tasman: What Makes This Region Different

Build right for the top of the South: the Nelson Tasman climate, coastal and rural sites, consenting and costs to plan for before you start your architectural home.

8 min read
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The Five Principles of a Passive House, Explained. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

The Five Principles of a Passive House, Explained

The five things that make a home a Passive House, explained simply: insulation, airtightness, high-performance glazing, heat-recovery ventilation and thermal-bridge-free design, and how they work together in a New Zealand home.

9 min read
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The Building Consent Process in Nelson and Tasman, Explained. A Nelson Tasman Place & Projects guide from Ecotectural Home Builders, Nelson Tasman.
Nelson Tasman Place & Projects

The Building Consent Process in Nelson and Tasman, Explained

Consent without the stress: how a new-home building consent works in Nelson and Tasman, from which council applies to the 20 working day timeframe, inspections and the Code Compliance Certificate.

8 min read
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Build New, Buy Existing, or Knockdown Rebuild? How to Decide. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

Build New, Buy Existing, or Knockdown Rebuild? How to Decide

Build new, buy existing, or knockdown rebuild? Compare cost, time, design control and home performance so you can make the biggest early decision with confidence.

8 min read
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Why So Many NZ Homes Are Cold and Damp, and How to Fix It in a New Build. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

Why So Many NZ Homes Are Cold and Damp, and How to Fix It in a New Build

Tired of cold, damp, mouldy rooms? What the research really shows, and how to design a new build in Nelson Tasman that stays warm, dry and healthy for good.

8 min read
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Is Your Home Making You Sick? An Indoor-Air and Health Self-Check. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

Is Your Home Making You Sick? An Indoor-Air and Health Self-Check

Could your home be making you sick? A quick room-by-room check for damp, mould and poor indoor air, what the signs mean, and how a new build fixes them.

9 min read
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What Is a Certified Passive House, and How Is It Different in NZ?. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

What Is a Certified Passive House, and How Is It Different in NZ?

What certification actually proves: the performance targets behind a certified Passive House in New Zealand, and how it differs from the Building Code and Homestar.

8 min read
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Passive House vs Homestar vs SuperHome: Which Standard Is Right for You?. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

Passive House vs Homestar vs SuperHome: Which Standard Is Right for You?

Confused by the standards? Passive House, Homestar and SuperHome compared: what each one measures, and how to choose or combine them for your New Zealand home.

8 min read
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How Much Does a Passive House Cost to Build in New Zealand?. A Passive House & Building Science guide from Ecotectural Home Builders, Nelson Tasman.
Passive House & Building Science

How Much Does a Passive House Cost to Build in New Zealand?

What a Passive House really costs to build in New Zealand: honest Nelson Tasman builder figures instead of misleadingly low public averages, and exactly where the premium goes.

8 min read
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How Much Does It Cost to Build a House in NZ (2026)?. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

How Much Does It Cost to Build a House in NZ (2026)?

What it really costs to build a house in New Zealand in 2026: honest Nelson Tasman builder figures, why public per-square-metre numbers mislead, and how to budget with confidence.

9 min read
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House Plans and New Home Designs in NZ: What Your Options Really Are. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

House Plans and New Home Designs in NZ: What Your Options Really Are

From off-the-shelf plans to a builder-led custom design: your real options for a new home in New Zealand, and why following the winter sun pays off in a forever home.

9 min read
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Minor Dwellings and Tiny Homes in NZ: Rules, Cost and Whether They Stack Up. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

Minor Dwellings and Tiny Homes in NZ: Rules, Cost and Whether They Stack Up

The new 70 square metre granny flat exemption, what a proper minor dwelling costs, the real risks of tiny homes on wheels, and when a small second home genuinely stacks up.

10 min read
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Financing a New Build in NZ: Construction Loans and Progress Payments, Explained. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

Financing a New Build in NZ: Construction Loans and Progress Payments, Explained

How construction loans, drawdowns and progress payments work in NZ, what banks want from you and your builder, and the contingency rule that saves builds.

10 min read
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Why We Charge to Price Your Plans (and Why Free Quotes Cost More). A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

Why We Charge to Price Your Plans (and Why Free Quotes Cost More)

A free builder quote takes hours it never gets and hides its gaps in your budget. What a paid plan pricing review delivers instead, and why the fee comes back off your build.

9 min read
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Home Builders in Nelson, Motueka and Tasman: How to Find the Right One. A Nelson Tasman Place & Projects guide from Ecotectural Home Builders, Nelson Tasman.
Nelson Tasman Place & Projects

Home Builders in Nelson, Motueka and Tasman: How to Find the Right One

Who builds homes across Nelson, Motueka and Tasman, how architectural and Passive House builders differ from volume builders, and how to find the right one for a one-off home.

9 min read
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The Best Areas to Build in Nelson Tasman: A Local Builder’s Guide. A Nelson Tasman Place & Projects guide from Ecotectural Home Builders, Nelson Tasman.
Nelson Tasman Place & Projects

The Best Areas to Build in Nelson Tasman: A Local Builder’s Guide

Tasman, Kaiteriteri, Mapua, Upper Moutere, Richmond, Nelson and Golden Bay compared for a new build, plus the site factors that matter more than the postcode.

9 min read
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Already Have House Plans? How to Get Them Priced and Built. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

Already Have House Plans? How to Get Them Priced and Built

You can build plans from any architect or designer. What a builder checks first, how a good one brings a design back into budget, and how long consent and build really take.

9 min read
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How a Builder Prices Your Architectural Plans. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

How a Builder Prices Your Architectural Plans

What actually goes into pricing a set of architectural plans: quantity take-offs, supplier and subtrade pricing, buildability, value management, and why two quotes on the same plans can differ so much.

9 min read
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Tendering Your Plans vs Partnering With One Builder. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

Tendering Your Plans vs Partnering With One Builder

Sending finished plans out to several builders for competitive quotes, or engaging one builder early and open book. What each really gets you, and which suits a one-off home.

9 min read
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Building a House in NZ: Where to Start. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

Building a House in NZ: Where to Start

The first moves that keep a build in control: set a real budget, talk to your bank and a builder early, and get the order right before you fall in love with a design.

9 min read
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Why Build Costs Blow Out, and How to Prevent It. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

Why Build Costs Blow Out, and How to Prevent It

The real reasons builds go over budget, lowball quotes, incomplete plans, the ground, variations, and no contingency, and the handful of moves that keep a build on its number.

9 min read
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How to Choose an Architectural Home Builder in New Zealand. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

How to Choose an Architectural Home Builder in New Zealand

What separates an architectural builder from a volume builder, the green flags worth paying for, the red flags to walk away from, and how to verify a builder before you commit.

9 min read
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Twelve Questions to Ask a Builder Before You Sign. A The Design & Build Journey guide from Ecotectural Home Builders, Nelson Tasman.
The Design & Build Journey

Twelve Questions to Ask a Builder Before You Sign

The questions that reveal how a builder really works, on pricing, project management, credentials and your specific build, and what a good answer actually sounds like.

9 min read
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How Much Does a Luxury Architectural Home Cost in NZ?. A Open-Book Pricing & Project Management guide from Ecotectural Home Builders, Nelson Tasman.
Open-Book Pricing & Project Management

How Much Does a Luxury Architectural Home Cost in NZ?

What a high-end architectural home really costs to build in New Zealand, what you are paying for, why bigger homes cost less per square metre, and what pushes a luxury number up.

9 min read
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