If you want to add storage, a workshop, or a garage to your property without dealing with the delays and costs of a council building consent, you need to understand the 30-square-metre rule.
Under Schedule 1 of the New Zealand Building Act, you can legally build a detached single-storey shed or garage up to 30m² without a permit. For context, a 30m² footprint is roughly a single car garage or a spacious 6m x 5m workshop.
However, many Kiwi property owners mistakenly think "no permit" means "no rules." To legally bypass council consent, your 30m² build must strictly meet specific criteria.
The 3 Rules to Build a 30m² Shed Without Consent
No Internal Plumbing: The structure cannot contain any toilets, showers, or kitchen facilities. If you want a sleepout with a bathroom, you must apply for a full building consent.
Boundary Setbacks: The shed must be positioned its own height away from all boundaries and residential dwellings. For example, if the apex of your shed roof is 3.5 metres high, it must sit at least 3.5 metres away from your fence line.
The Engineering Catch: This is where most DIY projects fail compliance. To qualify for the 30m² exemption, the building design must either be carried out or reviewed by a Chartered Professional Engineer (CPEng), or built/supervised by a Licensed Building Practitioner (LBP).
If you buy a generic, un-engineered kitset online and put it up yourself, you are breaching the Building Act. If a neighbor complains or the council checks aerial maps, you risk heavy fines and an order to tear the structure down.
Unsure if your site qualifies for the 30m² exemption?
Call our local team directly on 0800 858 258
for a free, no-obligation compliance check over the phone.
How Our Kitsets Guarantee Compliance
We take the legal risk entirely off your shoulders. Every single kitset shed and garage we supply comes pre-packaged with certified engineering calculations and a Producer Statement (PS1).
Because our designs are signed off by a Chartered Professional Engineer, your project automatically satisfies the council's requirements for the 30m² exemption on day one. You get industrial-strength New Zealand steel framing that handles local wind loads, without the council paperwork.
Ready to Build Your 30m² Shed?
Don't guess with council regulations. Tell us your property location and what you need to store, and our team will configure a code-compliant, pre-engineered 30m² layout specifically for your site.