Building a new brick boundary wall is a great way to add privacy, security, and kerb appeal to your property — but getting the consent side of things right before you start is essential. Whether you need a building consent depends primarily on the wall's height, its proximity to boundaries and structures, and the ground conditions on your site.
The Key Rule: Height Determines Consent
Under the New Zealand Building Act 2004, certain low-risk building work is exempt from requiring a building consent. These exemptions are listed in Schedule 1 of the Act and are administered by MBIE Building Performance.
For freestanding masonry walls (which includes brick boundary walls), the general Schedule 1 exemption allows construction without building consent if the wall is:
- No more than 1.5 metres high, and
- Not retaining soil, and
- Not located in a special hazard area (such as a flood-prone or high-wind zone)
If your proposed brick wall exceeds the exempt height threshold, or if it will be retaining soil on one side, you will almost certainly need to apply for a building consent from your local council before work begins.
Important: Schedule 1 exemptions are subject to interpretation by your local council. Always confirm with your council before starting work — do not rely solely on this article.
Retaining Walls Are Treated Differently
A retaining wall holds back soil and is subject to stricter rules than a freestanding boundary wall. Even a brick retaining wall under the exempt height threshold may require consent depending on the surcharge (load) above it, proximity to a boundary, or the nature of the ground. Retaining walls over the exempt height threshold almost always require consent and will typically need engineering input.
If your boundary wall is partly decorative and partly retaining, your council will assess it as a retaining wall — so be upfront with them about the site levels on both sides.
Resource Consent vs Building Consent
Building consent and resource consent are two separate things, and you may need one, both, or neither:
| Consent Type | Issued By | Covers |
|---|---|---|
| Building consent | Your local council (building department) | Structural safety, NZ Building Code compliance |
| Resource consent | Your local council (planning department) | Height, setbacks, appearance, district plan rules |
Many district plans have rules about boundary wall height for visual amenity reasons — for example, limiting front boundary walls to 1.0–1.2 metres in residential zones. Even if your wall is exempt from building consent, it may still need resource consent under your district plan. Check with your council's planning team.
What the NZ Building Code Requires
Where building consent is required, your brick boundary wall must comply with the NZ Building Code, particularly:
- Clause B1 (Structure): The wall must be structurally sound and able to withstand wind, seismic, and other loads relevant to your location.
- Clause E1 (Surface Water): The wall must not cause water to pond or divert onto neighbouring properties.
For masonry construction, NZS 4210 (Masonry Construction) is the key standard. Your bricklayer and, where required, your engineer will work to this standard. BRANZ also publishes useful guidance on masonry construction best practice.
Seismic and Wind Zones Matter
New Zealand's seismic and wind environment means that brick walls — especially taller ones — need careful design. A wall that would be straightforward in a low-wind, low-seismic area may need significant steel reinforcement and concrete footings in Wellington or Christchurch. Your council's consent process will flag if engineering calculations are required.
The Consent Application Process
If your wall does require building consent, the general process is:
- Engage a qualified bricklayer (and structural engineer if required) to prepare plans and specifications.
- Submit a building consent application to your local council, including site plans, wall drawings, and any engineering documentation.
- Wait for consent to be granted — councils have 20 working days to process a complete application.
- Build the wall in accordance with the approved plans.
- Request inspections at stages specified by your council (typically foundation/footing stage and completion).
- Obtain a Code Compliance Certificate (CCC) once the work passes final inspection.
When to Call a Professional
Bricklaying is a skilled trade, and a poorly built brick wall can be a serious safety hazard — particularly in an earthquake. For any brick boundary wall, we strongly recommend engaging a qualified, experienced bricklayer. For walls requiring building consent, you will also likely need a Licensed Building Practitioner (LBP) to carry out or supervise the restricted building work. You can check LBP registration at Licensed Building Practitioners.
For walls requiring building consent, or in challenging ground or high-wind/seismic areas, a structural engineer should be involved in the design.
You can find qualified local bricklayers and tradespeople on tradedirectory.co.nz.
Licensed Building Practitioner (LBP)
