Already built

Retrospective shed approval in WA

Short answer

A shed built without a permit can usually be approved afterwards with a Building Approval Certificate. A registered building surveyor inspects and certifies it, then the application goes to your council. We organise the whole process.

Last updated 29 October 2026

It happens a lot

Unapproved sheds are one of the most common things found when a house is sold. Some were put up by a previous owner, some by people who thought a kit shed didn't need a permit. Either way, it can usually be approved after the fact.

How retrospective shed approval works in WA

  1. We look at what's there. Photos, measurements and what your council has on file.
  2. As-built plans. We draw the shed as it stands, with a site plan showing its position and setbacks.
  3. Surveyor inspection. A registered building surveyor checks the shed and, if it meets the standards, issues a Certificate of Building Compliance.
  4. Planning approval if needed. If the shed breaks a planning rule, such as a boundary setback, that approval comes first.
  5. Lodgement. We lodge a Building Approval Certificate application with your council.
  6. Approved. The council issues the Building Approval Certificate and the shed is on record.

Common problems with older sheds

  • No footing details. The surveyor needs to know how the shed is held down. Sometimes a small dig at a corner answers it.
  • Missing engineering. Kit sheds come with engineering. If the paperwork is lost, the supplier can often reissue it, or an engineer can assess it.
  • Too close to a boundary or over a sewer. These are planning issues and may need approval or a change.

If something needs fixing, you get a clear list. Once it is fixed, the certificate can be issued.

Questions

Common questions

Will council make me pull it down?

It is rare for a sound shed in a sensible spot. Most unapproved sheds are approved, sometimes after small changes. Removal is usually only ordered for serious safety or planning problems.

Do I need retrospective approval for a small shed?

Not if the shed would have been exempt in the first place: freestanding, 10 m² or less and 2.4 m tall or less. In that case there is nothing to approve.

How long does it take?

Usually four to eight weeks, depending on the surveyor's inspection and the council's workload. Add more time if planning approval is needed.

Selling with an unapproved shed?

Send us photos and your address. We tell you what's involved and give you a fixed price.

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