In New Zealand, the terms registered building practitioner and licensed building practitioner are often used interchangeably — and for good reason. They refer to the same thing: a tradesperson who holds a Licensed Building Practitioner (LBP) licence under the Building Act 2004. There is no separate "registered" category for builders in NZ; if someone describes themselves as a registered builder, they almost certainly mean they are an LBP.
What Is a Licensed Building Practitioner (LBP)?
An LBP is a building professional who has been assessed by the Building Practitioners Board (administered with support from MBIE) as having the skills, knowledge, and experience to carry out restricted building work (RBW) — the type of work that most affects the structural integrity and weathertightness of a home.
The LBP scheme was introduced to lift the standard of building work across New Zealand and give homeowners confidence that the people working on their homes are competent. You can verify whether someone holds a current licence on the Licensed Building Practitioners register.
LBP Licence Classes
There are several licence classes under the LBP scheme, each covering different types of work:
| Licence Class | What It Covers |
|---|---|
| Design | Designing buildings that require consent |
| Carpentry | Structural and weathertight carpentry |
| Roofing | Roof coverings and associated weatherproofing |
| External Plastering | Plaster cladding systems |
| Bricklaying & Blocklaying | Masonry construction |
| Site | Overall site management of restricted building work |
| Foundation | Foundation systems |
A builder may hold one or more of these classes. Always ask your tradesperson which class(es) they are licensed in, and make sure it matches the work you need done.
What Is Restricted Building Work?
Restricted building work (RBW) is work that must be carried out or supervised by a licensed building practitioner. It generally includes:
- Structural work — framing, foundations, and load-bearing elements covered by NZS 3604 (Timber-framed buildings)
- Weathertightness work — roofing, cladding, and external plastering
- Design work for buildings that require a building consent
If your project requires a building consent and involves any of the above, you are legally required to use an LBP for that portion of the work. Your LBP must also provide you with a Record of Work on completion, which is an important document for your building file. Check MBIE Building Performance for the full definition of restricted building work.
What About Work That Doesn't Need an LBP?
Not all building work requires a consent or an LBP. Schedule 1 of the Building Act lists exemptions — minor work like small sheds, certain repairs, and maintenance that can be done without a consent. However, the rules around exemptions can be nuanced and vary depending on your local council, so always confirm with your council before starting work.
Even for exempt work, hiring a qualified tradesperson is strongly recommended. Poor workmanship can affect your home's value, insurance, and safety — and may create problems if you sell. BRANZ is a great resource for understanding good building practice in NZ conditions.
Why Does It Matter for Homeowners?
Hiring an LBP gives you important protections:
- Accountability — LBPs can be disciplined or have their licence suspended or cancelled if they do poor work
- Record of Work — a legal document confirming restricted work was done correctly
- Insurance and resale — lenders and insurers may ask whether work was done by a licensed practitioner
- Peace of mind — especially important in NZ's varied climate, where weathertightness failures can be extremely costly
If a builder cannot show you a current LBP licence for the class of work you need, that is a significant red flag.
How to Check If Your Builder Is Licensed
- Ask your builder for their LBP licence number and class
- Search the public register at lbp.govt.nz
- Confirm the licence is current and covers the type of work you need
It takes only a few minutes and could save you significant trouble down the track.
When to Call a Professional
For any building work that requires a consent — including new builds, extensions, structural alterations, and most re-roofing — you must use an LBP for the restricted building work components. This is a legal requirement under the Building Act 2004, not just a recommendation.
Even for smaller projects, a qualified builder brings expertise in NZ building standards, local council requirements, and the specific challenges of building in New Zealand's climate. You can find qualified, local LBP builders on tradedirectory.co.nz.
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Licensed Building Practitioner (LBP)
