Council plumbing inspections, a guide by Dotto

What Central Coast Council inspects on a plumbing job

On the NSW Central Coast, plumbing and drainage inspections are set by the local council rather than by the state. This guide, published by Dotto from the official sources listed at the foot of each page, follows Central Coast Council’s part in a plumbing job, one stage at a time.

Two bodies, two jobs

Building Commission NSW’s own words are plain: “Under the Plumbing and Drainage Act 2011, Building Commission NSW is the plumbing regulator in New South Wales.” Its own area of operation is the places served by Sydney Water or Hunter Water. Elsewhere it has delegated the regulator’s function to local councils, county councils and other qualified bodies, and councils across NSW have accepted it, apart from a few that declined. On its list of local regulators, the Central Coast local government area is matched to Central Coast Council.

So two names come up on a Central Coast job. Building Commission NSW issues the licences and certificates that plumbers, drainers and gasfitters work under, and in NSW one of those is needed for any plumbing, draining or gasfitting work, whatever the job costs. Council sets and carries out the inspections: its page says on-site plumbing work in the region requires an inspection by Central Coast Council.

Council is also the region’s water authority: its water supply page lists collecting and treating sewage among the services it runs across the local government area. The body that inspects the pipes on a property is the same body whose water and sewer services those pipes join.

Grey-green eucalyptus leaves on a pale branch, with a single red gum blossom hanging below against a blue sky.
Gum leaves and a red gum blossom. Photo by BecBartell on Pixabay

The five stages on the tag

Each guide is one box on the inspection tag. Read them in order for a whole job, or go straight to the box you need.

  1. 1

    Who regulates plumbing on the Central Coast

    Why the Central Coast follows Council’s rules rather than the Sydney arrangements, what on-site plumbing work leaves out, and what Building Commission NSW tells plumbers in regional areas to ask their council.

  2. 2

    Council’s plumbing and drainage inspections

    The five steps on Council’s page, from the inspection application to the drainage diagram, with the time limits that bind the plumber: a notice of work at least two days before starting, and the closing paperwork within two days of finishing.

  3. 3

    Backflow devices: registration and yearly testing

    Which properties need a containment device, how it gets onto Council’s register, and the yearly test by an accredited backflow plumber that follows.

  4. 4

    On-site sewage systems and Council

    Where a property cannot connect to Council’s sewerage system: the applications Council asks for, and the registration and approval to operate that every system needs.

  5. 5

    The licences behind each step

    Which licence Council’s pages and the commission’s categories name for each step in Council’s process, from the licensed plumber who signs the notice of work to the plumber with backflow accreditation who tests a device.

How the guide is made

Every rule here is read from a page published by Building Commission NSW or Central Coast Council, and each page lists its sources at the foot. The rules can change, and the official pages are the ones to rely on for a particular job.

The inspection steps, the backflow register and the on-site sewage approvals are all run by Council, and each guide names the form or application that belongs to its stage.