In New Zealand, a qualified bricklayer can legally carry out a range of structural masonry work — but whether an engineer needs to be involved depends on the complexity of the job, the building consent requirements, and what the NZ Building Code demands. The short answer is: for straightforward, low-risk masonry, an engineer may not be required, but for anything load-bearing, earthquake-prone, or outside standard scope, engineering input is usually essential.
What Counts as Structural Masonry Work?
Structural masonry refers to brickwork or blockwork that forms part of a building's load-bearing system — walls that support floors, roofs, or other structural elements. This is different from non-structural masonry such as garden walls, decorative cladding, or internal partition veneers, which carry no significant load.
Common structural masonry jobs include:
- Load-bearing brick or concrete block walls
- Retaining walls over a certain height
- Reinforced masonry (RM) construction
- Underpinning or repairing existing structural brickwork
- Chimneys attached to the main structure
The NZ Building Code and Consent Requirements
All building work in New Zealand must comply with the NZ Building Code, administered by MBIE Building Performance. Structural masonry is primarily governed by Clause B1 (Structure), which sets out performance requirements for stability, robustness, and resistance to loads including earthquake and wind.
Whether you need a building consent depends on the scope of work. Some minor work is exempt under Schedule 1 of the Building Act 2004 — for example, certain small retaining walls and garden walls — but the exemptions have specific height, load, and proximity conditions. You should always confirm with your local council whether your project needs consent before starting.
For consented structural masonry work, the council will typically require:
- Detailed plans and specifications
- Evidence of compliance with relevant NZ Standards (such as NZS 4210: Masonry Construction and NZS 3604 where applicable)
- In many cases, producer statements or engineering sign-off
When Is an Engineer Required?
An engineer's involvement becomes necessary — and in many cases legally required — in the following situations:
- Complex or heavily loaded structures: Any masonry wall carrying significant loads beyond what standard tables in NZS 4210 cover will need a structural engineer to design and specify the work.
- Earthquake-prone buildings: New Zealand's seismic environment means that masonry in higher seismic zones (much of the country) often requires specific engineering design. BRANZ provides guidance on seismic performance of masonry.
- Retaining walls over 1.5 m: Retaining walls exceeding 1.5 m in height (or lower walls with surcharge loads) generally require both a building consent and engineering design.
- Reinforced masonry: RM construction involves steel reinforcement and grout-filled cores — this almost always requires engineering design and inspection.
- Restricted building work (RBW): Under the Licensed Building Practitioners scheme, certain structural and weathertight work is classified as restricted building work, meaning it must be carried out or supervised by a Licensed Building Practitioner (LBP). A bricklayer working on RBW must hold the appropriate LBP licence (typically in the Bricklaying and Blocklaying domain).
What Can a Bricklayer Do Without an Engineer?
For simple, low-risk masonry that falls within the scope of NZS 4210 standard tables and doesn't require a building consent, a skilled bricklayer can often proceed without direct engineering involvement. Examples might include:
- Small freestanding garden walls within Schedule 1 height limits
- Non-structural brick veneer cladding (though weathertightness compliance under Clause E2 still applies)
- Repairs to existing non-structural brickwork like repointing or replacing damaged bricks
Even in these cases, the bricklayer is still responsible for ensuring the work meets the Building Code.
The Role of the Licensed Building Practitioner (LBP)
If the masonry work is restricted building work, only a licensed bricklayer (LBP) can carry it out or supervise it. The LBP system exists to protect homeowners by ensuring that critical building work is done by people with verified skills and accountability. You can check whether a bricklayer holds a current LBP licence on the LBP register.
An LBP bricklayer must also provide a Record of Work on completion, which is an important document for your building file.
Masonry in Earthquake-Prone Areas
New Zealand's seismic activity makes structural masonry a particularly sensitive area. Unreinforced masonry (URM) — older brick buildings without steel reinforcement — is a known earthquake risk. If you're doing work on or near existing URM, council may require an earthquake-prone building assessment, and engineering advice is strongly recommended. Check with your council and refer to MBIE Building Performance for the latest guidance on earthquake-prone buildings.
When to Call a Professional
Always engage a qualified structural engineer alongside your bricklayer when:
- The work requires a building consent
- You're in a high seismic zone or working on an older masonry building
- The wall is load-bearing or retaining significant soil or water
- You're unsure whether the work is within standard scope
For restricted building work, make sure your bricklayer holds a current LBP licence. You can find qualified, local bricklayers and blocklayers on tradedirectory.co.nz.
If in doubt, talk to your local council's building department before any work begins — it's far easier to get it right from the start than to fix non-compliant work later.
Licensed Building Practitioner (LBP)
