Site drainage and stormwater assessments for property owners, buyers, renovators and developers who need practical advice and, where required, compliance documentation.
On many small renovation and extension projects, drafting plans cover the architectural scope but leave stormwater out. When increased site coverage triggers a council permit condition requiring a detention and discharge assessment, the project can stall waiting on an engineering report.
ARX assesses your site's drainage and stormwater performance and prepares the documentation needed to satisfy council or building surveyor requirements — helping keep your permit and build on schedule.
Tell us what you need. We'll review the project and provide a clear fixed price.
The engineer attends the property and carries out a thorough assessment.
Receive a clear, professional engineering report with findings, documentation and engineering sign-off.
Final price depends on site complexity and whether formal compliance documentation is required.
Yes — this is one of our core services. We assess site drainage and stormwater performance and can prepare compliance documentation where required, such as for permit conditions on small renovation or extension projects.
Standard reports are typically delivered within 24 hours of the site visit. Larger or more complex assessments — bigger sites, multiple adjoining properties, extensive documentation — may take longer. We'll confirm a realistic timeframe when we quote, and stick to it.
Our reports start from $350–$500 depending on the service, but the final price depends on the property, scope and site access. You'll receive a fixed quote before any work begins — no surprises.
Yes. We're based in Melbourne and primarily service greater Melbourne, but we also take on projects across Victoria. Get in touch with your location and we'll confirm availability.
Tell us about your project and we'll come back with a clear quote — usually within hours.
Or explore Building Condition Reports