How to Comply with AS/NZS 3500 – Stormwater Drainage in Melbourne

1 Aug

Why Stormwater Compliance Matters in Melbourne

Stormwater drainage systems in Melbourne must meet AS/NZS 3500 to ensure water is safely discharged, doesn’t overflow onto neighbouring properties, and doesn’t lead to long-term structural damage.

Failure to comply can result in:

Property damage
Legal disputes with neighbours
VCAT proceedings
Insurance claim rejections

What Is AS/NZS 3500?

AS/NZS 3500 is a joint Australian/New Zealand Standard for plumbing and drainage. For stormwater, it governs:

Pipe sizing based on rainfall intensity
Discharge location (must not affect neighbouring land)
Overflows and surface drainage
Fall and grade of stormwater pipes
Connections to legal point of discharge (LPOD)

Common Non-Compliances We Find

At Plumbing Compliance Solutions, our stormwater compliance reports often uncover:

Downpipes not connected to LPOD
Stormwater illegally discharging to neighbouring properties
Incorrect fall or pipe sizes causing overflow
Blocked or undersized pits
Builders signing off without final inspection

How We Help You Comply

We provide:

Independent stormwater compliance reports
Inspection of new builds, extensions & defects
Verification against AS/NZS 3500 and council standards
Reports suitable for VCAT, council disputes, and insurance cases

🔗 Learn the difference between stormwater reports and building reports

Book an Inspection

Whether you're buying, building, or in a dispute — don’t assume your stormwater is compliant.
Let us inspect it properly. Book an inspection here

Emily Grove