With councils across New Zealand actively enforcing the earthquake-prone building (EPB) regime, 2026 is shaping up as a watershed year for remediation work. For licensed builders, structural trades, and specialist contractors, the EPB pipeline represents one of the most durable sources of commercial and industrial work in the current market β but getting it right means understanding the regulatory framework.
Here's what every NZ tradie needs to know.
What Makes a Building Earthquake-Prone?
Under the Building Act 2004 (as amended by the Building (Earthquake-prone Buildings) Amendment Act 2016), a building is legally classified as earthquake-prone if it would perform at 33% or less of the New Building Standard (NBS) during a moderate earthquake in its location.
The NBS is the seismic performance required of a new building today. A building scoring below 33% NBS must carry a public notice on its main entrance and is subject to mandatory remediation or demolition within a statutory timeframe. Anything between 34% and 66% NBS is considered "potentially earthquake-prone" β not legally required to remediate, but a risk that insurers and lenders increasingly flag during due diligence.
MBIE (Ministry of Business, Innovation and Employment) administers the EPB regime through Building Performance (building.govt.nz), which publishes detailed guidance for building owners, engineers, and contractors.
Seismic Risk Zones and Timeframes
New Zealand is divided into three seismic risk zones β high, medium, and low β and the remediation timeframe depends on both zone and building type.
High-seismic zones include Wellington, Marlborough, Hawke's Bay, Gisborne, and parts of Canterbury. Building owners in these areas face the shortest remediation windows.
Medium-seismic zones cover much of Auckland, Waikato, and the Bay of Plenty. Timeframes are longer, but the clock is still running.
Low-seismic zones include Northland and Southland, with the most generous deadlines.
"Priority" buildings β hospitals, emergency service facilities, and multi-storey schools β have earlier deadlines than standard commercial or residential buildings. The regime extends through to the early 2030s for lower-priority buildings in medium-risk zones, meaning the EPB work pipeline is sustained, not a one-off spike.
Councils are required to issue EPB notices and maintain public registers. If you want to see what work is coming in your area, check your local council's EPB register β they are public documents available on council websites.
What Work Does the EPB Regime Create?
EPB remediation is typically a multi-trade project. Here's where the work sits:
- Structural strengthening β steel moment frames, concrete shear walls, and base isolation systems form the core engineering and construction scope.
- Facade and parapet work β older unreinforced masonry (URM) buildings need parapets, chimneys, and cladding properly secured or removed entirely. This is often the first and most urgent task.
- Interior upgrades β suspended ceilings, partition walls, and M&E systems all need to meet current seismic performance requirements once structural work begins.
- Demolition β in cases where strengthening is uneconomic, buildings are demolished, creating a separate stream of opportunity for demolition contractors.
In Wellington, post-KaikΕura earthquake experience showed remediation contracts ranging from around $15,000 for a simple parapet removal to several million dollars for a full structural reline of a multi-storey commercial building. The range is wide, but the work is consistent.
LBP Licensing and Restricted Building Work
If you're doing structural work on an EPB, you need to be across your Licensed Building Practitioner (LBP) obligations. Most structural seismic work qualifies as Restricted Building Work (RBW) β meaning it can only be carried out or supervised by an LBP with the relevant licence class.
The main licence classes relevant to EPB remediation are:
- Carpentry β for structural timber connections and framing work
- Design β for engineers and designers preparing strengthening plans
- Site β for those managing the overall project
If you're considering LBP licensing to open up EPB work opportunities, read our full guide on how to get an LBP licence in New Zealand β it covers the application process, competency requirements, and typical timeframes.
Contracts and Liability on EPB Jobs
EPB projects carry higher contractual risk than standard residential construction. Building owners are often juggling negotiations with insurers, heritage bodies, and councils simultaneously, and the scope of work regularly shifts once internal investigations begin.
Key provisions to address in your contracts before work starts:
- Scope creep β define clearly what happens when the investigation phase reveals more damage or complexity than anticipated. Cost-plus arrangements with agreed margins are common.
- Access and phasing β EPB work often happens in occupied buildings, requiring careful staging and after-hours scheduling.
- Sign-off chain β confirm who provides producer statements (PS3 and PS4) and at which construction stages.
- Completion definition β be explicit about whether "practical completion" includes council sign-off or just physical completion of the works.
Our NZ tradie contract guide covers the clauses you should include on any commercial construction job β most apply equally to EPB remediation work.
Pricing EPB Remediation
EPB jobs are harder to price than standard construction because unknowns are inherent in the process. Most experienced contractors in this space use a cost-plus arrangement for the investigation and design phase, then move to a fixed price once the structural engineer has produced the final strengthening design.
As a rough guide, structural seismic remediation in New Zealand currently runs at:
- Simple parapet or chimney removal: $15,000β$60,000
- URM wall strengthening per lineal metre: $2,500β$6,000+
- Full seismic reline of a commercial building: $500,000β$5M+
These are GST-exclusive figures. Use our free GST calculator to work out GST-inclusive totals when preparing quotes for clients.
Margins on EPB work tend to be stronger than standard residential β the specialist nature, regulatory risk, and documentation burden justify it. Don't undercut yourself against a perceived shortage of work; the clients who own EPBs have a legal obligation to remediate and cannot simply choose not to proceed.
How to Find EPB Work
Start with the council register. Under the Building Act, councils must maintain and publish their EPB registers. Searching Wellington City Council, Napier City Council, or Christchurch City Council websites will show you buildings that have received EPB notices β those are your prospects.
Build referral networks with structural engineers. Engineers doing seismic assessments are the first point of contact for building owners who receive EPB notices. A strong relationship with a structural engineering firm puts you in the room when clients ask "who can build this?"
Look for heritage buildings. Pre-1935 unreinforced masonry buildings in the main centres are the most common EPB type. Streetwork in Wellington's CBD or Napier's Art Deco precinct will show you where the demand is concentrated.
EPB work also tends to repeat β a building that needs parapet work today is likely to need further remediation in the future as strengthening targets are progressively met.
Managing the Paperwork
EPB projects generate significantly more compliance documentation than standard builds:
- Producer statements (PS3 for construction, PS4 for inspection)
- Council inspection sign-offs at defined stages
- Engineer's reports and as-built drawings
- Insurance notifications and progress reports
For managing job records, invoice staging, and client communications across multi-phase EPB projects, Fastcrew (https://fastcrew.nz) is worth exploring β it's built for NZ tradies and handles job-stage tracking and phased invoicing without the complexity of enterprise project management tools.
Download Free Templates
Managing EPB project documentation from scratch adds unnecessary overhead. Download our free NZ tradie templates at tradietools.nz/templates/ β including contract templates, quote spreadsheets, and PS3/PS4 sign-off checklists.
A Durable Pipeline
The EPB pipeline differs from discretionary renovation work in one important way: councils legally require remediation. Building owners cannot simply defer indefinitely β there are enforcement powers, and the notices appear on LIM reports, affecting sale and financing. That statutory pressure makes EPB work far more recession-resistant than most residential project types.
If you hold the right licences, have experience with structural or masonry work, and can manage multi-stage commercial contracts, 2026 is an excellent year to position your business in this space. The deadlines are real, the work is funded, and the competition among qualified contractors is still thin compared to residential renovations.
NZ Tradie Tools provides free calculators, templates and guides for New Zealand tradies. Visit tradietools.nz.