Plumbing and drainage plans

Plumbing and drainage plans, also known as a House Connection Plan (HCP), as‑constructed drainage plans, sewerage plans or sanitary drainage plans, show where our sewer lines are located and how a property’s sanitary drainage connects to them. These plans also show the location of plumbing fixtures inside the building. Plans for on-site sewerage systems may also be available and can show the location of spray areas for these systems.

Why a plan may not be available

Not all properties will have an up-to-date plan. This may be because:

  • the property is vacant land, so no HCP exists
  • the work on the property may never have been regulated by us, so no plan was created
  • plans were lodged with the Queensland Building and Construction Commission (QBCC) and the copy we hold may not be current, or may not show changes made after November 2012. 

Fees

Copies of 'to scale' plumbing and drainage plans incur a fee.

Timeframes

Some plumbing and drainage plans are stored electronically, while others are held in hardcopy form at an external storage facility. Processing time depends on where the plan is stored.

  • Electronic plans will be provided within two business days.
  • Hardcopy plans will be provided within five business days. If your requested plan is stored externally, we will notify you by email.

Request a plumbing and drainage plan

Key tasks

Request a plumbing and drainage plan

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