By Greg Allan, tradesman and creator of Data First Coaching
Why do so many demolition contractors in New Zealand get caught out by licence and consent rules?
Most demolition contractors in New Zealand carry more than one regulator's rules on every job at once, WorkSafe for asbestos and hazardous work, the local council for building consent, and still try to track it from memory or whatever paperwork is left in the truck. A job that looked straightforward on the quote can turn into a stalled site when the asbestos result comes back, or when the council decides the demolition is not fully exempt after all.
The risk is not that the rules are hidden. It is that they are spread across different bodies and apply differently to a full demolition of a detached house, a partial strip-out of a commercial building, or an internal soft strip, and most owners only check them properly once the question is already sitting in front of them on site. The coaching that fixes this works online and starts from a demolition contractor's own job and finance data, so where in New Zealand the business is based does not change how it runs.
What licence does a demolition contractor need to remove asbestos in New Zealand?
If your demolition job disturbs more than a small area of non-friable asbestos material, WorkSafe requires the removal to be carried out by a licensed asbestos removalist, and removing any friable asbestos always needs a Class A licence (Asbestos removal guidelines). Below a certain small area, a licence may not be required, but your duty to manage the risk still applies (Asbestos licensing guide).
A Class A licence covers any type or amount of asbestos and asbestos contaminated dust or debris, {“A Class A asbestos removal licence permits the removal of any type or amount of asbestos and asbestos-contaminated dust or debris (ACD).”} A Class B licence is narrower, covering non-friable asbestos and the dust generated during that removal. Before you plan the demolition or strip-out, WorkSafe says the person in charge must get a competent person to inspect the building and identify any asbestos material the work is likely to disturb, and make sure it is removed so far as reasonably practicable before work starts (Managing asbestos).
Does a demolition contractor need a building consent to demolish a building?
A full demolition of a detached building below a height limit set out in the Building Act 2004 is exempt from needing a building consent under Schedule 1 of that Act, according to the Ministry of Business, Innovation and Employment (Demolition of detached building). A partial demolition, a structural strip-out that leaves part of the building standing, usually needs a consent unless a specific exemption applies.
Work requiring consent includes structural building work, which MBIE lists as covering additions, alterations, re-piling and some demolitions (Check if you need consents). If your job is on a shared wall, an attached building, or has neighbour access and support to think about, do not assume the detached building exemption applies. One Building Act determination found a demolition job did not qualify for that exemption because the building was not detached, and the authority was within its rights to issue a notice to fix (Determination 2018/033). If your project sits close to the line, you can ask your council for a discretionary exemption.
What does a demolition contractor need to tell WorkSafe before or during a job?
WorkSafe requires written notice before certain demolition related work starts. You must give written notice ahead of any licensed asbestos removal work beginning (Duty to notify licensed asbestos removal), and separate notice is required for particularly hazardous demolition related work, such as work with a risk of falling, excavation work meeting specified criteria, or work involving explosives (Particular hazardous work).
If an emergency demolition involves a structure or plant that contains asbestos material, WorkSafe must be told before the demolition starts, not after (Managing asbestos). The exact notice period for each situation is set out on the WorkSafe pages linked here, because it can change, so check it directly rather than from memory of the last job.
What does keeping on top of all this actually cost a demolition business?
Every licence, consent and notice on a demolition job becomes a record, the asbestos inspection date, which licence class applied, the consent reference, the notice sent to WorkSafe. When that lives in your head, in a diary, or scattered across site folders, it becomes time spent after hours chasing paperwork rather than billable time on the excavator or the tools.
Looking at your own data first, rather than running the business from memory job to job, shows which jobs actually carried the heaviest compliance load, the asbestos surveys, the consent applications, the notice letters, and whether that time was ever priced into the quote. A demolition contractor who prices a strip-out the same as last time, without checking what the asbestos result or the council actually required, can end up absorbing hours that were never charged for, on top of the usual truck, bin and tipping costs of clearing waste for recycling or landfill.
AI agents, software that does a job the way you would do it yourself, with your own wording, your own prices and your own rules, can carry a lot of this non billable load. AI agents built around a demolition contractor's own records can hold a job back from moving to site until the asbestos inspection report is attached, flag when a job looks like it needs a building consent rather than the exemption, or track the notice period against a proposed start date. The crew and the office then spend their time on the job, the salvage, the site safety and the customer, not on chasing forms.
This is general information, not legal, tax or employment advice. Check your own situation with the body named here or a qualified adviser.
Where can you check the current rules?
- Managing asbestos in your building or workplace covers what a PCBU must do before and during demolition or refurbishment where asbestos is present, and emergency demolition notification.
- Asbestos removal guidelines sets out when a licensed removalist is needed and the difference between Class A and Class B licences.
- Asbestos licensing guide for applicants explains when a licence is and is not required.
- Duty to notify licensed asbestos removal covers the notice WorkSafe needs before licensed removal work starts.
- Particular hazardous work covers notice requirements for hazardous demolition related work such as excavation or explosives.
- Demolition of detached building covers the building consent exemption for full demolition of a detached building.
- Check if you need consents is MBIE's general guide to when a building consent is required.
- Determination 2018/033 is an example ruling on whether a demolition qualified for the detached building exemption.
How does Data First Coaching approach this?
Data First Coaching starts with a demolition contractor's own job records, not a conversation about what the owner thinks the compliance gap is. Greg Allan's Trade Business Intelligence looks at which jobs carried asbestos surveys, consent applications or WorkSafe notices, and whether that time and cost actually made it into the quote and the margin. That often shows the real problem is not the licence itself but how the job is priced and tracked once the licence or consent is already in hand.
From there, the how, building the records and the agents that carry this work, is worked through inside the Academy, with other members. The Academy is for demolition contractors and other trade owners who are open minded, innovative and willing to share what they learn, because the Trade Business Intelligence is powered by every member.
