Certification & Occupation Certificates
The last document between a finished build and an Occupation Certificate. Get it wrong and the OC stalls. We certify stormwater, flood mitigation and civil works — including designs prepared by others.
What you receive
Works-as-Executed plan review and certification
Site inspection report
Compliance certificate for civil, stormwater or flood works
Non-conformance report with rectification advice where required
How we do it
Site inspection and measure-up against the approved design
Review of the surveyor's WAE plan against approved drawings and consent conditions
Verification of detention storage volumes, orifice sizes, pit and pipe levels, treatment devices and finished levels
Certification letter addressed to the certifier or council
Where works don't conform, a clear statement of what must change — and, where possible, a compliant alternative rather than a rebuild
When you need it
At the end of construction, when your certifier requires civil, stormwater or flood sign-off before issuing an Occupation Certificate. Applies to DA and CDC approvals across all development types.
Related services Stormwater Management Plans · Roads Act Approval · Class 2 & Regulated Design
Frequently Asked Questions
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Yes, subject to reviewing the approved documentation. It's a large part of what we do.
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We assess whether the as-built system still performs. Often, it can be certified with a minor amendment rather than demolition.
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It depends on the development consent condition, but generally yes, for anything beyond a simple site. Levels must be surveyed, not assumed.
Contact us
Send us your site address, and we'll come back with a fixed fee, usually within one business day