LBP, Master Builder, Certified Builder: what each one means

Look at the footer of any New Zealand builder's website and you will see badges. Licensed Building Practitioner. Registered Master Builders. New Zealand Certified Builders. They sit side by side as if they were the same kind of thing. They are not, and knowing the difference changes how you read every builder's marketing, ours included.

One of the three is a legal licence issued by the government. The other two are voluntary trade associations that a builder chooses to join and pays to belong to. All three can be worth having. Only one is required by law.

LBP: the one that is a licence

Licensed Building Practitioner is a government licensing scheme, and it connects to a legal category of work called Restricted Building Work, or RBW. That is the work critical to a house's structural integrity or weathertightness: foundations, framing, roofing, cladding. By law, RBW must be carried out or supervised by an LBP holding the relevant licence class.

There is a paper trail attached. When RBW is completed, the LBP must issue a Record of Work naming what they did or supervised. That document goes to council and to you, and it matters when you sell, insure or ever need to establish who was responsible for what. On our jobs it goes into the handover file alongside the manuals and warranties, and any builder should be able to tell you where theirs ends up.

The licence is not one thing, either. It comes in classes, including carpentry, roofing, external plastering, brick and blocklaying, foundations, design and site, and an LBP is licensed for their class, not for everything. That matters on a real job because the restricted work spans several trades: the roofer needs to be covered for roofing the same way the carpenter is covered for framing. Supervision is legitimate and common, but supervision is an active duty, not a signature at the end. A supervising LBP is expected to be close enough to the work to genuinely oversee it.

Records of Work are worth chasing at the time, not later. If you are years past a build and cannot find one, the property file at council is the first place to look, because a copy goes there too. Buying a house, the same file tells you whether the restricted work on any consented job had its paperwork done, which is the kind of small, cheap check building inspectors and lawyers make routinely.

The LBP register is public. Anyone can look up a practitioner, see their licence class and check their history. If a builder's website claims a licence, two minutes on the register confirms it. This is the one credential where you do not have to take anyone's word for anything.

Master Builders and Certified Builders: the memberships

Registered Master Builders and New Zealand Certified Builders are both voluntary associations. Joining is a choice, not a legal requirement, and a builder can be excellent while belonging to neither. What each membership tells you is different, and the difference is worth knowing.

• New Zealand Certified Builders requires a recognised carpentry trade qualification for membership. The badge tells you the builder holds a trade ticket, because you cannot get in without one.
• Registered Master Builders admits members on experience and financial standards, without mandating the trade qualification. The badge tells you the builder met those criteria, which is meaningful, but it is a different claim from the NZCB one.
• Neither membership is a licence, and neither replaces the LBP requirement. A member of either association still needs an LBP carrying out or supervising any restricted building work on your job.

And neither badge tells you who will actually build your house. Associations admit businesses; sites are run by people. The useful follow-up to any badge is names: who is the LBP on my job, who runs the site day to day, and how much of the work is your own team rather than subcontractors. A builder with good answers to those questions and no badges at all can be a better hire than a heavily badged company whose sites the owner never visits.

The guarantees that come with them

The main practical reason the memberships matter to you is the guarantee products attached to them. The Master Build 10-Year Guarantee is available only on jobs run by Registered Master Builders members. The Halo 10-Year Residential Guarantee is available only through NZCB members, and it is insurance-backed. If you want one of these products, your choice of builder decides which one you can have, which is why the badges are worth checking early rather than late.

Both are optional products, not legal entitlements. Both have caps, exclusions and conditions that vary by policy, so do not rely on a summary, ours or anyone's. If a guarantee matters to your decision, get the current policy wording and read what is actually covered, for how much, and what you must do to keep the cover alive. The wording is the product. The badge is just the doorway to it.

Timing matters with these as well. The guarantees are arranged before the build starts, not added afterwards, so if one is part of your decision, raise it at contract stage and get the arrangement confirmed in writing before work begins. Asking about it late in the job is usually asking too late.

How to read a builder's footer now

Start with the licence, because it is the one with legal weight. Ask who the LBP on your job will be, whether they are on the tools or supervising, and confirm them on the public register. Then treat the association badges as what they are: signals worth something, attached to guarantee products worth reading about, but not licences and not proof of quality on their own.

And ask the builder to talk you through their own badges. A builder who can explain clearly what each one is, what it required of them and what it gets you is showing you something more useful than the badge itself: they understand the system they work inside, and they will not fog you with credentials when a plain answer would do. That habit, more than any logo, is what you are actually hiring.