ArchSolutioNZ Building Consent Specialists
    Architectural plans, council guidance notes and New Zealand building consent documents arranged as an educational resource hub

    New Zealand building consent guidance before you spend more on your project.

    Practical insights for homeowners, investors and businesses trying to understand consent triggers, unconsented work, Schedule 1 exemptions, council RFIs, site constraints and approval pathways in New Zealand.

    NZ Building Consent GuidanceArchitect-led explanationsCouncil pathway clarityUpdated resource hub
    Bottom line

    Insights are where you learn the rule, risk or council issue before choosing a service.

    Start here when you are still trying to understand the problem. If you already know you need help, go directly to Building Consent Services, Certificate of Acceptance support, Council Support or a Feasibility Check.

    Featured insight

    Start with the guide that solves the biggest compliance uncertainty.

    Certificate of Acceptance (CoA) NZ: The Complete Homeowner Guide
    CoA & Unconsented Work10 min readHigh-intent guide

    Certificate of Acceptance (CoA) NZ: The Complete Homeowner Guide

    Complete NZ guide to Certificate of Acceptance for unconsented building work. Learn the CoA process, documentation required, costs, and what to expect from council.

    Topic pathways

    Explore insights by project problem, not by publish date.

    Choose the issue closest to your project, then filter the article library below.

    Insight library

    Find the guide that matches your project issue.

    Filter the library by topic, then open the full guide when you find the closest match.

    PC120 Landslide Risk Auckland: Section 37 & Geotechnical Reports
    Site RiskJune 23, 2026• 8 min read

    PC120 Landslide Risk Auckland: Section 37 & Geotechnical Reports

    A practical Auckland homeowner guide to PC120 landslide risk, Section 37 certificates, Stage 1 geotechnical statements, resource consent risk and how ArchSolutioNZ resolved a real Namata Road building consent issue.

    Read full guide
    Legalise Unconsented Sleepout NZ: Certificate of Acceptance Guide
    CoAJune 2, 2026• 9 min read

    Legalise Unconsented Sleepout NZ: Certificate of Acceptance Guide

    How to legalise an unconsented sleepout or minor dwelling in NZ using a Certificate of Acceptance. Fire separation, wastewater capacity and foundation evidence explained.

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    Building Use Classifications NZ: Schedule 2 Guide for Form 2 & Form 8
    CommercialApril 28, 2026• 12 min read

    Building Use Classifications NZ: Schedule 2 Guide for Form 2 & Form 8

    Plain English guide to every Schedule 2 building use code (SH, SR, SA, CS, CL, WL, IA and more). Required for building consent and Certificate of Acceptance applications under the Building Act 2004.

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    2026 Granny Flat Rules in NZ: Complete Guide to No-Consent 70m² Dwellings
    Granny FlatsJanuary 15, 2026• 15 min read

    2026 Granny Flat Rules in NZ: Complete Guide to No-Consent 70m² Dwellings

    Official 2026 guide to building granny flats up to 70m² without building consent. Learn PIM requirements, LBP responsibilities, NES-DMRU rules, and how to stay compliant under Schedule 1A.

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    Certificate of Acceptance (CoA) NZ: The Complete Homeowner Guide
    CoADecember 15, 2025• 10 min read

    Certificate of Acceptance (CoA) NZ: The Complete Homeowner Guide

    Complete NZ guide to Certificate of Acceptance for unconsented building work. Learn the CoA process, documentation required, costs, and what to expect from council.

    Read full guide
    Proportionate Liability, Home Warranties and PI Insurance — What It Means for Building Consents
    Council RFIsNovember 24, 2025• 7 min read

    Proportionate Liability, Home Warranties and PI Insurance — What It Means for Building Consents

    Expert guide to NZ's building reforms: proportionate liability, mandatory home warranties, and PI insurance. Learn how these changes affect building consents and homeowners.

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    Do You Need Building Consent for a Bathroom Renovation in New Zealand?
    Consent TriggersNovember 6, 2025• 8 min read

    Do You Need Building Consent for a Bathroom Renovation in New Zealand?

    Complete guide to bathroom building consent in NZ. Learn when consent is required, what's involved, and real Auckland project experience adding a WC and hobless shower.

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    Building on Land Subject to Flooding in New Zealand: A Practical Guide
    Site RiskNovember 5, 2025• 5 min read

    Building on Land Subject to Flooding in New Zealand: A Practical Guide

    Expert guide to building on flood-prone land in NZ. Learn about Building Act requirements, freeboard standards, foundation design, and consent process.

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    How to Split an Existing House into Two Dwellings in Auckland
    Consent TriggersNovember 3, 2025• 9 min read

    How to Split an Existing House into Two Dwellings in Auckland

    Convert one house into two legal dwellings under H4.6.3. Complete guide on costs, building consent, fire separation and development contributions.

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    Setback Building Consent Exemption Changes in New Zealand
    Planning RiskOctober 24, 2025• 6 min read

    Setback Building Consent Exemption Changes in New Zealand

    The updated setback rules are now in force — buildings under 10m² need no setback, and 10–30m² structures only need 1 metre. Learn how these changes simplify small builds.

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    Decks Under 1.5m – Do You Need a Building Consent?
    Consent TriggersMarch 5, 2024• 2 min read

    Decks Under 1.5m – Do You Need a Building Consent?

    The rules around low-level decks and when you need consent for deck construction in New Zealand.

    Read full guide
    General guidance

    Every project still needs its own review.

    These insights explain common consent and council issues, but they are not a substitute for reviewing your property, scope, documents and local council context.

    Before relying on a guide

    Check the project address, existing building, proposed work, site constraints, council records and consultant requirements. Small details can change whether a project is exempt, consentable, or needs further investigation.

    Questions

    Using the Insights library.

    Ready to check your project?

    Get clarity before your consent issue becomes more expensive.

    Send your plans, photos, council letter, RFI or project idea. We can help identify whether you need building consent documentation, CoA support, council response work, feasibility advice or another pathway.