Verify the position before physical work starts
Before you start a renovation, one of the most important questions is:
Does this exact work need a building consent, or is there a valid exemption that applies?
The answer usually cannot be determined from the room name alone.
“Bathroom renovation”, “kitchen renovation” or “remove a wall” can each describe very different building work. What matters is exactly what you plan to change, which building elements are affected, whether an exemption applies and what conditions come with that exemption.
The safest approach is to verify the position before physical work starts.
Use this sequence:
Define the exact work → check current official guidance → identify any possible exemption → confirm its conditions → identify anything that still needs BCA or professional advice → separately check local planning/resource-consent requirements → record the position you are relying on.
SeekSaver does not determine whether your particular work legally needs consent.
Use the Renovation Planning Stages Checklist NZ for the wider project sequence.
Jump to the Renovation Consent Check RecordStart with the exact work you are proposing
A good consent check starts with a clear scope.
Instead of writing:
“Renovate bathroom”
describe what is actually changing.
For example:
“Replace wall and floor finishes, relocate the shower, alter sanitary plumbing and replace a window.”
Those details matter because different parts of one renovation may be treated differently.
Before checking consent requirements, bring together the current:
- project scope;
- drawings or sketches;
- work items;
- products or systems affected;
- structural information where relevant;
- plumbing or drainage work proposed;
- existing building information you already have.
If your project is not defined clearly enough yet, use SeekSaver's Home Renovation Project Brief Checklist NZ first.
Why the room name does not decide whether consent is needed
New Zealand's Building Act regulates building work, not simple labels such as “bathroom makeover” or “kitchen renovation”.
Two homeowners can both say they are renovating a bathroom while carrying out completely different work.
One project may involve finishes and limited replacement work. Another may alter structural elements, external moisture protection, sanitary plumbing, drainage or consented design information.
That is why SeekSaver should not give you a table saying:
Bathroom = no consent
Kitchen = no consent
Wall = consent
The correct question is:
What exact building work is proposed, and what does the current official framework say about that work?
How to check whether building consent may be required
The Building Act's starting rule is that building work must not be carried out except in accordance with a building consent. The Act then creates exceptions for specified work.
For a homeowner, a useful checking process is:
Describe the actual proposed work
Identify each meaningful work item rather than treating the whole renovation as one label.
Check MBIE's current homeowner guidance
Start with MBIE's Check if you need consents guidance.
Check the official exempt-work guidance
If the work looks as though it may fit a Schedule 1 exemption, read the relevant exemption and its conditions.
Use Can I Build It? where it covers your work
The official tool can help homeowners work through common Schedule 1 scenarios. Record the result or guidance you relied on.
Resolve uncertainty before work starts
If your exact project does not fit the guidance clearly, do not convert uncertainty into your own exemption. Ask the relevant council/BCA or an appropriately qualified professional.
How Schedule 1 exemptions fit
Schedule 1 contains categories of building work that can be carried out without a building consent when the relevant requirements are satisfied.
MBIE's guidance includes areas such as repair/replacement work, some detached structures, windows, doors, walls, plumbing and drainage, insulation, decks and other specified work.
But an exemption is not a vague permission for “similar” work.
You need to check:
- the correct exemption;
- the exact description of the work;
- limits such as dimensions or circumstances where relevant;
- whether an authorised professional is required;
- any other conditions attached to that exemption.
Some Schedule 1 exemptions have their own professional requirements.
If your proposed work does not clearly fit the exemption and its conditions, record the position as Needs checking.
Exempt from building consent does not mean exempt from the Building Code
This distinction is essential.
Section 17 of the Building Act requires building work to comply with the Building Code to the extent required by the Act, whether or not a building consent is required.
Exempt work can also remain subject to other relevant law.
Building-consent exemption
Can still involve
- Building Code obligations
- authorised-professional conditions
- local-planning requirements
- other applicable law
So do not interpret:
“No building consent required”
as:
“I can build it however I want.”
As the building owner, you remain responsible for determining whether an exemption applies and for ensuring the work complies with the relevant requirements.
If you are not confident you can establish that position, use an appropriately qualified professional.
A 2026 point: the small stand-alone dwelling exemption is not a general renovation exemption
New Zealand introduced the Schedule 1A small stand-alone dwelling framework in 2026.
That does not mean an ordinary extension or alteration to an existing house is automatically exempt.
Schedule 1A currently defines a qualifying small stand-alone dwelling as a building that is:
- stand-alone;
- wholly new and not an addition or alteration to an existing building or existing building work;
- no more than 70 square metres;
- single-storey.
The framework has additional conditions and procedures that are outside the scope of this renovation article.
If your project is specifically a new stand-alone dwelling, use the current dedicated MBIE guidance rather than treating this general renovation page as your eligibility check.
For an addition or alteration to your existing home, do not rely on Schedule 1A simply because the proposed space is small.
When to ask your council or BCA
Ask the relevant council/BCA when the official guidance does not give you a sufficiently clear answer for your actual work.
Examples include:
- you cannot tell whether the work fits a Schedule 1 exemption;
- several different kinds of building work are combined;
- the exemption depends on dimensions or technical information you are unsure about;
- you need project-specific information about the consent process;
- you need to understand separate local approvals or planning requirements;
- an appropriate professional identifies uncertainty requiring council/BCA confirmation.
Council/BCA advice does not replace a designer, engineer or other specialist where technical expertise is needed.
Building consent and resource consent are not the same thing
A building consent and a resource consent deal with different legal questions.
Building consent relates to building work and the Building Act/Building Code.
Resource consent/local planning concerns activities controlled through district or regional planning rules.
Building consent
Building Act / Building Code · building work · BCA/building process
Does not automatically decide planning status.
Resource consent / local planning
District or regional planning rules · locally controlled activities/effects · council planning process
Does not automatically decide building-consent status.
Those planning rules vary by geographic area.
This means a project may:
- have a building-consent exemption while still needing a planning check;
- require building consent while being permitted under the relevant planning rules;
- need another local approval depending on the property and work.
SeekSaver cannot create one national planning rule that replaces your relevant council's current planning requirements.
Check professional requirements separately from Restricted Building Work
A building-consent exemption and Restricted Building Work are different questions.
Schedule 1 exempt building work is not Restricted Building Work simply because it affects a structural or weathertightness element. MBIE explains that work exempt from building consent under Schedule 1 is not RBW because a building consent is not required.
However, some Schedule 1 exemptions have their own conditions requiring particular work to be designed, carried out or supervised by an authorised professional, such as an LBP, chartered professional engineer, plumber or drainlayer. That professional requirement is a condition of the exemption; it does not make the work RBW.
Separately, where a renovation requires building consent, some residential design, construction or alteration work affecting a home's primary structure, external moisture-management systems, or certain fire-safety design may be Restricted Building Work and require appropriately licensed practitioners.
The 2026 small stand-alone dwelling pathway is a separate exception: qualifying non-consented small stand-alone dwelling work can also fall within the RBW framework.
Separate check 1
Building consent required?
Separate check 2
Schedule 1 exemption conditions
Separate check 3
Authorised-professional requirement attached to an exemption
Separate check 4
Restricted Building Work
Schedule 1A small stand-alone dwelling pathway — consider separately.
For this guide, keep these checks separate:
- Does the proposed work require building consent or potentially fit a Schedule 1 exemption?
- If an exemption is being relied on, does that exemption require an authorised professional?
- If consent is required — or the project uses the qualifying small stand-alone dwelling pathway — does Restricted Building Work apply?
If any of these questions is unclear, record Needs checking and confirm the position with the relevant council/BCA or an appropriately qualified professional.
This guide does not determine LBP licence classes or provide a full Restricted Building Work assessment.
If building consent is required
Once you establish that the proposed work requires building consent, stop treating the question as an exemption check.
Move into the consent process.
You may need project-specific information prepared with your designer, builder or other professionals.
This page does not try to become a full building-consent application guide.
It also does not teach the later inspection or CCC process.
If you believe the work is exempt
Do not finish your check with:
“No consent needed.”
Record why you reached that position.
Keep, where relevant:
- exact work description;
- official guidance checked;
- Schedule 1 provision considered;
- Can I Build It? reference/result;
- advice obtained;
- drawings or technical information relied on;
- date checked;
- resource-consent/local-plan check;
- authorised-professional check;
- RBW check;
- next action.
A clear record is much stronger than relying on memory later.
Record consent, inspection and document responsibilities in the Renovation Contract Checklist NZ. If the work changes later, use the Renovation Variations NZ to record the new project position. Keep later close-out records together with the Renovation Handover Checklist NZ.
Common unsafe assumptions to avoid
- “It's internal, so it must be exempt.”
- Internal work can still involve regulated building work.
- “It's only a renovation, not a new build.”
- Alterations can still be building work.
- “The builder said no consent is needed, so nothing else needs checking.”
- A builder can be an important source of information, but the owner still has responsibilities.
- “If Schedule 1 applies, the Building Code no longer matters.”
- Building Code obligations remain.
- “No building consent means no resource consent.”
- These are different systems.
- “The 70 m² stand-alone dwelling framework means I can add a 70 m² extension without consent.”
- Schedule 1A's definition expressly excludes an addition or alteration to an existing building.