Most sheds in Australia need some form of approval, but a small one often doesn’t. The usual dividing line is about 10 square metres and 2.4 metres high. Whether you fall under it depends on your state, your council, your zoning and exactly where the shed will sit. This guide explains how the rules work, where they differ and how to check yours before you buy a kit.

TL;DR

• A shed up to about 10m² and 2.4m high is often exempt from a building permit, but the exact limits vary by state and council.
• Exempt from a building permit does not mean exempt from planning rules. Zones, overlays, easements and setbacks still apply.
• Your local council is the final word. Check your property’s zone and overlays before you order.
• Building without a required approval can mean orders to fix or remove the shed, so it pays to check first.
• Measuring your shed’s footprint and height against your council’s limits before buying is the simplest way to stay on the right side of the rules.

Table of Contents

• Building approval and planning approval are not the same thing
• The 10m² rule of thumb
• State by state: what to expect
• What can push a small shed into needing approval
• How to check the rules for your own property
• Our view: size the shed to the rules, not the other way round
• Matching a Keter shed to the 10m² limit
• What happens if you build without approval
• Owner-builders and larger projects
• Before you order: a quick checklist
• FAQ
• Sources

Building approval and planning approval are not the same thing

People say “council approval” as if it were one thing. In practice, a shed can face two separate checks.

Building approval (a building permit, or building approval in Queensland) is about whether the structure is safe and sound: footings, anchoring, wind loads and so on. It is usually issued by a private building certifier or the council.

Planning approval (a planning permit, development application or similar) is about where the shed goes and how it affects the neighbourhood: zoning, overlays, height, setbacks and appearance.

You can need one without the other. Frankston City Council in Victoria, for example, notes that a planning permit may still be needed for a shed that doesn’t need a building permit, particularly where the land is in a zone such as Low Density Residential or Green Wedge, or is covered by an overlay. Queensland authorities make the same distinction: Toowoomba Regional Council advises that even self-assessable building work must still comply with the local planning scheme.

So the question to ask isn’t just “is my shed small enough?” It’s “does it clear both the building rules and the planning rules on my block?”

The 10m² rule of thumb

Across the country, the most common exemption threshold for a freestanding residential shed is 10 square metres of floor area, with a maximum height around 2.4 metres. Councils from different states describe it in much the same way:

• Brisbane (QLD): a shed doesn’t need building approval if it is no more than 10m² in plan area, no more than 2.4m high with a mean height of no more than 2.1m, and no longer than 5m on any side, and meets the other listed conditions.
• Frankston (VIC): a building permit is required for sheds over 10m². Sheds of 10m² or less don’t need one if they meet the height and location conditions.
• Serpentine Jarrahdale (WA): most standalone sheds need building approval, but sheds under 10m² and no higher than 2.4m are exempt.
• Brighton (TAS): outbuildings are exempt from planning approval if the roofed area is no more than 18m² where there’s no other outbuilding, or 10m² where one already exists, provided other criteria are met.

Notice how many extra conditions sit behind that single number. Length on any side, mean height, whether other outbuildings already exist: each can change the answer. Treat 10m² as a starting point for your research, never as a guarantee.

State by state: what to expect

Every state and territory writes its own rules, and councils add their own layers. Here’s how the picture looks in broad terms, using official council and government pages.

South Australia, the ACT and the Northern Territory have their own systems, so check with your council or state planning authority directly rather than assuming the figures above carry across.

Queensland: cyclone areas and local overlays

Queensland is where many readers get caught out. The state exemption for small tool sheds carries an exception for tropical cyclone areas, so a shed that would be fine in Brisbane may need approval further north. Brisbane itself says approval depends on the shed’s size and location, whether it affects existing structures or alters a pool enclosure or pool fence, and the property’s zone, overlays and neighbourhood plan.

The City of Gold Coast adds that a small shed without building approval must not sit over sewer or stormwater infrastructure, an easement or a covenant area. It also notes that an amenity and aesthetics application may be needed if the council considers a shed too large or tall for the block, even when standard building requirements are met.

New South Wales: exempt and complying development

NSW has two useful pathways. Exempt development needs no planning or construction approval at all, as long as you meet the standards. If your shed doesn’t qualify, complying development is the next step. The NSW Housing Code offers a fast-track route that can issue approval in as little as 20 days for structures such as detached sheds and garages that meet specific standards.

If you’re on a rural or farm property, the Inland Code has expanded exempt standards for larger farm buildings, including sheds and silos, in inland NSW.

Shoalhaven City Council gives sensible advice that applies well beyond its patch: assume approval is needed until you can show it isn’t, and check your property’s zone on the NSW Planning Portal.

Victoria, Western Australia and Tasmania

In Victoria the headline is simple, but the overlays are not. A small shed under 10m² might skip the building permit and still need a planning permit because of a heritage, vegetation or flood overlay on your land. In Western Australia, the Shire of Serpentine Jarrahdale says a building permit application needs a completed form, the applicable fees and the required plans, which may include engineering details and a bushfire assessment. In Tasmania, if a shed misses the exemption criteria, Brighton Council asks for a planning application with a site plan, floor plan and an explanation of stormwater management.

What can push a small shed into needing approval

Even when the footprint is under the limit, these factors can flip the answer:

• Height. Some councils measure both the maximum and the mean height, so a skillion or apex roof matters.
• Length. Brisbane’s limit of 5m on any side means a long, narrow shed over 5m can fail even if it’s under 10m².
• Location on the block. Setbacks from boundaries, and placement in front of the building line, are common triggers.
• Easements, sewer and stormwater. Building over services is generally a no, as the Gold Coast guidance shows.
• Existing structures. Some councils count other sheds or outbuildings towards your allowance, and a shed attached to or affecting a house, pool fence or retaining wall is treated differently.
• Zoning and overlays. Bushfire, flood, heritage, coastal and cyclone overlays can all change the requirements.
• Total size across the lot. Even where no approval is needed, council may still care if a shed looks too big for a small block.

One point trips up many DIYers: an exemption from approval doesn’t exempt you from the standards. Brisbane is clear that even when no approval is required, the work must still comply with the applicable building standards, including structural sufficiency. Anchoring your shed properly to a level base is part of that.

How to check the rules for your own property

This takes less time than most people expect. Work through it in this order:

1. Find your zone and overlays. Use your council’s online planning map, or in NSW the Planning Portal’s property tools.
2. Read your council’s shed page. Most councils have one, and it will list the size, height and setback limits that apply locally.
3. Measure the shed you’re considering. Note the footprint, the overall height, and the length of each side. Brochure dimensions are usually external, so use those.
4. Check your block. Look at where services, easements and boundaries sit, and whether you already have other outbuildings.
5. Phone or email the council. A five-minute conversation, with the shed’s dimensions ready, saves a lot of second-guessing. Ask them to confirm the answer in writing if you can.
6. Talk to a building certifier if approval is needed. Brisbane advises speaking with a licensed building certifier to organise building approval where it’s required.

If you’re still working out the right size for your space, our guide to garden shed sizes in Australia shows how footprints translate into real storage. Our shed placement checklist walks through the siting questions that keep a small shed within the exemption, and our overview of shed permits and state exemptions is worth a read before you order a kit.

Our view: size the shed to the rules, not the other way round

We get asked about approvals all the time, and the pattern is always the same. People fall in love with a shed, order it, then discover their council wants paperwork. It’s a frustrating way to find out.

Our advice is to flip the order. Start with the limits that apply to your block, then choose a shed that sits comfortably inside them. Our sheds are made from durable, recycled and recyclable resin, they’re designed for DIY assembly, and they’re built to resist weathering, so they don’t rot, rust or warp. That makes a compact, well-planned shed a very practical choice for most backyards. A smaller footprint can often hold a surprising amount if you plan the inside, with tall items along the back wall, frequently used gear near the door and shelving for the small stuff.

If you genuinely need more space than the exemption allows, that’s fine too. Plenty of Australians go through approval for a larger shed and are glad they did. Just make that decision before the delivery arrives, not after.

— Liza

Matching a Keter shed to the 10m² limit

The maths is simple once you know the footprint. Our Keter Factor 8 x 6 garden shed measures 2.6 x 1.8m, which works out to about 4.7m², and the Keter Factor 8 x 11 shed measures 2.6 x 3.3m, about 8.6m². Both footprints are under 10m² and each side is under 5m. That is the sort of size that tends to fit common exemption limits, though you should still check the height and your site conditions with your council.

By contrast, a larger shed such as the Keter Apex 7.5x17 at 2.3 x 5.2m is about 12m² with one side over 5m, so in places that use the 10m² and 5m limits you’d expect to go through an approval process. Neither is better. It depends on what you need to store and what your block allows.

If you’d like to compare sizes, browse our small garden sheds or see the full range at Keter Australia.

What happens if you build without approval

The details differ between councils, but the broad risks are consistent. A council that finds an unapproved structure that needed approval can issue a notice requiring you to apply retrospectively, change the shed, or remove it. Retrospective approval can cost more and take longer than doing it properly first, and it isn’t guaranteed. Unapproved work can also create headaches when you sell the property, or when you make an insurance claim, so it’s worth asking your insurer how they treat outbuildings.

Specific penalties depend on your state and council, so check your council’s enforcement page or call them if you’re in this situation. If a shed already on your block has to come down to make room, it helps to know what to budget for shed demolition costs before you start planning the replacement.

Owner-builders and larger projects

If you’re putting up something bigger than a kit shed, other rules can kick in. In Queensland, the QBCC says an owner-builder permit is required for residential building work, including sheds, valued above $11,000, or $27,500 for farm buildings. A flat-pack resin shed for the backyard is nowhere near that territory, but if you’re building a large workshop, the paperwork is quite different.

Before you order: a quick checklist

• Footprint under your council’s limit, with each side within any length limit
• Overall height and mean height within the limit
• Shed positioned clear of easements, sewer and stormwater lines
• Setbacks from boundaries confirmed
• No overlay (bushfire, heritage, flood, cyclone) that changes the rules
• Other outbuildings on the block counted
• A level, properly prepared base and anchoring plan
• Council’s answer in writing, if you had to ask

When you’re ready to assemble, our step-by-step shed assembly guide covers the build from box to backyard.

FAQ

Do I need council approval for a shed in Australia?

It depends on your state, council, zone and the shed’s size and position. Many councils exempt small sheds of around 10m² or less and about 2.4m high from a building permit. You may still need planning approval, so check your council’s rules before you buy.

What is the biggest shed I can build without approval in Queensland?

In Brisbane, it’s a shed no more than 10m² in plan area, no more than 2.4m high with a mean height of 2.1m or less, and no longer than 5m on any side, plus other conditions. The state rules also exclude tropical cyclone areas, and other councils add their own requirements.

Can a shed need a planning permit but not a building permit?

Yes. In Victoria, for example, a small shed can skip the building permit but still need a planning permit if the land is in a zone like Low Density Residential or Green Wedge, or has an overlay. Queensland councils draw the same line between building and planning approval.

Who do I contact to check the rules?

Start with your local council’s planning or building team. If approval is needed, a licensed building certifier can help you organise a building approval. In NSW, the Planning Portal also lets you check your property’s zone.

Sources

• Building a shed - approvals and requirements, Brisbane City Council
• Building a shed, Frankston City Council
• Sheds, Garages and Workshops, Shire of Serpentine Jarrahdale
• Fact sheet: Outbuildings, Brighton Council
• When you don’t need building approval, Business Queensland
• Garden Sheds, Shoalhaven City Council
• Sheds, City of Gold Coast
• Sheds, shipping containers and tents, Toowoomba Regional Council
• Housing Code, NSW Planning Portal
• Inland Code, NSW Planning
• About owner-building, QBCC

Recommended

• Shed Permits in Australia: Check State Exemptions Before Buying a Kit
• Australian Playhouse Council Approval: Get It in Writing
• Shed base options for DIY homeowners: quick guide
• Stay Exempt Under 10m²: Shed Placement Checklist for Australia