Most small garden sheds that stay within local size and setback limits are often exempt, but it depends on your state and any overlays on your block. Two approvals can apply: planning approval (zoning, overlays, appearance) and building approval (safety, structure, the National Construction Code). Run the checklist below to confirm yours.

TL;DR:

• Queensland guidance caps exempt sheds at 10 m², 2.4 m high, with a 2.1 m mean height and sides no longer than 5 m.
• Victoria generally exempts nonmasonry sheds up to 10 m² from building permits: height is capped at 3 m, or 2.4 m within 1 m of boundaries.
• Tasmania permits low risk work for nonprefabricated sheds up to 18 m² and prefabricated steel sheds up to 36 m², subject to conditions.
• Overlays, easements, and underground services can affect eligibility, while vacant land may not qualify for exemptions intended for sheds serving an existing home.
• If approval is needed, prepare a site plan with dimensions and boundary distances, gather required engineering or drainage documents, and confirm the pathway before building.

Table of Contents

• Planning approval versus building approval: which one applies to you?
• Size and height limits that trigger a permit: state examples
• How do you check the rules for your own property?
• What are the steps when you do need approval?
• What about exemptions, low-risk work and owner-builder rules?
• A practical checklist to keep your shed exempt
• Why we think the paperwork should come before the purchase
• How our sheds can make the rules easier to meet
• FAQ
• Sources

Planning approval versus building approval: which one applies to you?

These are two separate gates, and a shed can pass one while still needing the other. Brisbane City Council explains that planning approval deals with neighbourhood and environmental impact, such as location, height and setbacks, while building approval focuses on safety and technical standards.

Here is how the two differ in practice:

• Planning approval looks at zoning, heritage, bushfire and flood overlays, setbacks from boundaries and how the shed looks from the street.
• Building approval focuses on safety and technical standards. Check with your council or certifier about the requirements for your shed.
• Exemption from one does not exempt you from the other, so confirm both before you buy.
• Your council is the first place to ask, because local rules can add conditions that the state baseline does not mention.

Start with planning. If an overlay applies to your block, it can override a general exemption.

Size and height limits that trigger a permit: state examples

The thresholds below are the commonly cited figures from state and council guidance. Treat them as a starting point, not a final answer.

• Queensland: Brisbane City Council guidance lists sheds of 10 m² or less in plan area, no more than 2.4 m high (mean height 2.1 m), with no side longer than 5 m.
• Victoria: Frankston City Council says sheds of 10 m² or less generally need no building permit if they are no more than 3 m high (or 2.4 m within 1 m of a boundary) and are not masonry.
• ACT: ACT Planning treats a roof plan area of 25 m² or less, no more than 3 m high, with a floor no more than 1 m above ground, as not needing building approval.
• Tasmania: the Building Act 2016 fact sheet allows low-risk work for non-prefabricated sheds up to 18 m² and prefabricated steel sheds up to 36 m².

Under 10 m² is the figure most Queensland and Victorian guidance builds around, which is why compact kits are so popular.

Other states set their own limits, and lot size, easements and local codes can shift any of these numbers. For exact dimensions of common kit sizes, our garden shed sizes guide is a handy comparison.

How do you check the rules for your own property?

Work through these in order, and keep notes of what you find.

1. Find your zone and overlays. Use your council’s planning portal or your state’s spatial viewer. Shoalhaven City Council advises you to assume you need approval until you confirm otherwise, because zoning and overlays vary so much.
2. Look up the exempt development rules. In New South Wales, the Codes SEPP rules for garden sheds set the standards a shed must meet to avoid planning approval.
3. Check easements and services. Call Dial Before You Dig and look for easements on your title, since heritage, bushfire and flood overlays can override a general exemption.
4. Ask a human. If anything is unclear, a quick call to your council planner or a private building certifier will settle it.

What are the steps when you do need approval?

If your shed is over the thresholds, the process is manageable once you know what to bring. Larger builds usually involve a building surveyor or licensed builder, and a private certifier is an option in many councils.

1. Prepare a site plan. Show the shed location, its dimensions and the distances to each boundary, with elevations and base details where relevant.
2. Choose your pathway. Decide between lodging with council or engaging a private certifier. Some councils let you submit planning and building applications together or separately.
3. Gather the paperwork. Typical documents are the site plan, structural or engineering details if required, stormwater or plumbing notifications and any referral agency forms.
4. Lodge and respond. Expect case-by-case assessment, and be ready for neighbour notification or a response from a referral agency.
5. Confirm the approval pathway before you build. Ask your council or certifier what approvals you need and when to obtain them.

What about exemptions, low-risk work and owner-builder rules?

Exempt does not mean unregulated. These are the points worth knowing:

• Low-risk categories differ by state. Tasmania, for example, caps non-prefabricated sheds at 18 m² and prefabricated steel sheds at 36 m².
• Check the applicable building requirements. Ask your council or certifier what standards apply, even if you believe an exemption may apply.
• Check the conditions carefully. An exemption applies only when the relevant requirements are met.
• Owner-builder rules limit what you can do without registration. Local guidance notes that small sheds may not need an owner-builder permit, while larger work will.

A shed on a vacant block is usually treated differently too. Redland City Council points out that many exemptions assume a shed is associated with an existing dwelling.

A practical checklist to keep your shed exempt

Run through this before you buy or start assembling:

• Measure your planned footprint and external height, and compare both with your local thresholds.
• Check setbacks and easements, and call Dial Before You Dig for underground services.
• Choose a prefabricated kit with clear published dimensions, so you can prove what you are building.
• Prepare a level, compliant base. Our shed base options guide covers the choices for DIY homeowners.
• Keep a simple plan and a record of your measurements, and notify your council or certifier whenever it is required.

Pro Tip: Our placement checklist for staying under 10 m² is a quick way to sanity-check your site before you order.

Why we think the paperwork should come before the purchase

Plenty of people buy a shed first and read the rules afterwards. We would flip that order. Clear dimensions, a straightforward kit and a good assembly guide make it far easier to check your plans against council limits before any money changes hands. We design for durable, recyclable materials and practical, weather resistant storage, and we publish sizing and assembly guides so you can decide with confidence.

— Liza

How our sheds can make the rules easier to meet

If you have run the checks and want a concrete kit to measure against your local limits, we have options you can compare.

• Our Keter Apex Shed in Walnut Look lists its dimensions clearly, so you can compare them with your council’s limits.
• Our sheds and outdoor storage range brings together information to help you plan your project.
• Our step-by-step assembly guide shows what to expect on the day.

Check the dimensions first, then get in touch with us about delivery when you are ready to order.

FAQ

What size shed can I build without a permit in South Australia?

South Australia treats most minor domestic structures as needing development approval, made up of planning consent and building consent. The Barossa Council notes these can be lodged together or separately, so check with your own council first.

What size shed can I build without a permit in NSW?

In NSW, a shed that meets the exempt development standards in the Codes SEPP does not need planning approval. The NSW rules for garden sheds set out the specific standards, and you should still confirm your overlays with council.

What size shed can you have without a permit in Victoria?

Sheds of 10 m² or less generally do not need a building permit if they are no more than 3 m high, or 2.4 m within 1 m of a boundary. Frankston City Council also expects the shed to be associated with another building on the same allotment and not built of masonry.

What is the maximum size shed I can build without a permit?

There is no single national answer, because each state sets its own limits. The ACT, for example, allows a roof plan area of up to 25 m² under its building approval rules, while other states use lower figures.

Sources

• Building a shed - approvals and requirements | Brisbane City Council
• Frankston
• Check if you need a BA - City and Environment Directorate - Planning
• Cbos
• Cabanas, cubby houses, ferneries, garden sheds, gazebos and greenhouses – Rules for exempt development

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• What Is a Shed Kit? The Complete Guide to Quick and Easy Outdoor Storage
• From Box to Backyard: A Step-By-Step Guide to Assembling Your Keter Shed Kit
• Shed base options for DIY homeowners: quick guide
• Stay Exempt Under 10m²: Shed Placement Checklist for Australia