Last reviewed: 1 August 2026 by the Ozbuyz Store Editorial Team.
Quick answer: Confirm planning and property constraints before choosing a shed. Approval depends on the state, council, zoning, lot, size, height, location, heritage controls, easements, bushfire or flood exposure and other conditions. Then compare usable internal space, access, base, drainage, anchoring and material suitability.
Some small sheds can qualify as exempt development, but only when every applicable standard is satisfied. A product being sold as a “garden shed” does not itself make the installation approval-free.
Planning checks before purchase
- State planning portal and local council rules
- Property zoning and lot restrictions
- Boundary setbacks and maximum height
- Easements, sewer or stormwater assets and utility access
- Heritage, conservation, bushfire, flood or coastal controls
- Strata, community-title, lease or landlord approval
- Whether building, planning or other permits are required
Keep written records of the rule or approval relied upon. When the site is complex, contact the council or a qualified building professional before ordering.
Measure usable space, not just nominal size
External dimensions, roof overhang, door opening and internal floor area can differ. Record:
- overall width, depth and peak height
- usable internal dimensions
- door width, height and opening path
- space needed to assemble and maintain exterior walls
- access from the street or driveway to the site
- room for mower handles, bikes, shelving and bins
Make an inventory and allow sensible future capacity, but do not automatically buy “one size up” if that creates an approval, setback or access problem.
Compare materials
| Material | Strengths | Considerations |
|---|---|---|
| Coated or galvanised steel | Wide range of sizes and efficient wall thickness | Condensation, edge safety, corrosion at scratches or coastal exposure and careful assembly |
| Resin or plastic | Low corrosion and limited painting | UV stability, panel rigidity, anchoring system and compatible shelving |
| Timber | Customisable and visually suited to some properties | Termites, moisture, painting or sealing, heavier base requirements and ongoing maintenance |
The base
Use the base system specified by the manufacturer and suitable for the soil, drainage and local building requirements. Options may include a concrete slab, engineered floor frame, pavers or another prepared foundation, but they are not interchangeable for every shed.
The base should be level, adequately drained and capable of transferring wind and structural loads. Confirm final slab dimensions and hold-down locations before concrete is poured. An incorrectly sized slab can direct water under the walls or leave anchors too close to an edge.
Wind and anchoring
A shed must be anchored in the manner required for the site and product. Wind classification, terrain, shielding, topography and local conditions affect the design load. Do not assume a basic anchor kit suits cyclonic, exposed or elevated sites. The manufacturer’s engineering information and local requirements should identify the approved hold-down method.
Drainage, condensation and ventilation
- Grade surrounding ground so water does not collect around the base.
- Keep roof drainage from discharging against walls or neighbouring property.
- Use ventilation provided or approved by the manufacturer.
- Store moisture-sensitive goods off the floor and away from condensation-prone walls.
- Do not block vents or modify panels in a way that weakens the structure or warranty.
Assembly and access
Check the required people, tools, protective equipment and weather conditions. Thin metal panels can act like sails in wind, and unfinished edges may be sharp. Follow the assembly sequence, square the base and frame, and fit every fastener and brace. Use a qualified installer where the product, planning approval or site requires it.
Browse current sizes and materials in garden sheds.
Frequently asked questions
Does a small garden shed need approval?
Sometimes it may qualify as exempt or permit-free work, but only when all state, local and site conditions are met. Check before purchase.
What is the best shed base?
The correct base is the manufacturer-approved system that suits the structure, ground, drainage, wind load and local requirements. There is no universal base for every shed.
Does every shed need anchoring?
A shed needs the hold-down method specified for its design and site. The required hardware and foundation vary with wind conditions and construction.
Is resin always better near the coast?
It can reduce metal corrosion concerns, but fasteners, doors, roof, anchoring and UV exposure still need checking. Compare the full product specification and warranty location exclusions.
Can I build over an easement?
Do not assume so. Easements protect access to utilities or other rights and can restrict structures. Obtain the relevant property information and approval.
Research and review method
This guide was reviewed against NSW exempt-development and Housing Code information and Victorian council planning guidance to illustrate why requirements vary. Readers must use the current rules for their own property.