Whittlesea Building
Inspections

How to check your drainage for the Guide to Standards and Tolerances

Drainage failure is a common cause of disputes. Knowing the rules helps you avoid them.

Whittlesea 3757 · 14 April 2026

Fully licensed & accredited

  • Building & Plumbing Commission (VIC) Building & Plumbing Commission
  • Australian Society of Building Consultants Australian Society of Building Consultants
  • Strata Community Association Strata Community Association
  • Building Dispute Practitioners Society Building Dispute Practitioners Society

In short: The Guide to Standards and Tolerances sets the limit for drainage performance. Exceeding it can lead to a VCAT claim.

What the Guide says

The Guide requires that surface water not pool. It must flow away from the house quickly and freely.

Recorded inspection findings

A surface water blockage in a Whittlesea yard and a driveway grading that causes pooling near a home.

Crucial for buyers

Water that sits against a floor or wall can rot timber. It also promotes mould and affects the structural integrity of the slab.

How inspections are not conducted

A slight puddle is not always a failure. The Guide defines an acceptable level of ponding. The inspection determines if it is within that range.

Inspection advice

Check the fall of the land and the condition of the guttering. Correcting the grade stops water from reaching the building.

Written by our local inspection team from work carried out in Whittlesea. Licensed building practitioners.

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FAQ

Questions Whittlesea owners ask about this

What does the Guide to Standards and Tolerances cover?

It is a reference document used by the regulator and VCAT to determine if work meets legal standards.

Can poor drainage affect a new build?

Yes. If the engineering drawings do not account for the local soil, water can still pool regardless of the construction quality.

Is this a defect on a building permit?

A permit is for the construction process. If the finished work does not meet the Guide, it is a defect under the Building Act 1993.

Does a new house need a drainage inspection?

A PCI confirms the house is livable. A specific drainage check ensures the lot is graded correctly to protect the structure.

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