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Roles and responsibilities

Understand the roles and responsibilities of everyone involved in your building project so you can manage your team effectively and ensure a successful outcome.

Your building team

Owner

The owner of the land or property plays a central role in the building process. This includes communicating with the builder, checking the progress of the building work, and requirements outlined in the building contract such as making payments.

The owner must appoint a building surveyor and ensure the required permits are obtained (unless another person has signed authorisation to do so on their behalf). They must give the builder reasonable access to their property so they can carry out work. They must provide the builder any items and materials they have agreed to supply and make scheduled payments on time.

Owner-builder

An owner-builder is a person who uses their own skills to build, extend or renovate their house or manages sub-contractors to do the work. They can also be a registered builder who builds, extends or renovates a home on their own property.

Owner-builders take on many of the responsibilities of a registered builder, including ensuring the work is compliant with building regulations and that the worksite meets safety requirements.

Builder

A builder should have the appropriate registration and insurance for the work they are hired for. They must complete the work to the standard required by the building laws as well as your plans and specifications in the contract. A builder who enters into a contract with an owner to do building work is responsible for all of that work, even if there are tradespeople or subcontractors doing the work under them. They are known as the head builder.

There are different types of builder classes and trades that may be involved in a project.

Building surveyor

The building surveyor is responsible for issuing the building permit and ensuring the work is compliant with the building laws. They carry out regular inspections to ensure building work is being undertaken correctly.

An owner can engage either a municipal building surveyor, who works for the council, or a private building surveyor. Once an owner has appointed a building surveyor for their project, they are called their relevant building surveyor (RBS). It is illegal for a builder to appoint a building surveyor for you. They may recommend one, but you are free to choose your own.

Builder classes and categories

Each builder category and class has specific requirements for when a practitioner must register with the BPC and the work that builders can lawfully undertake.

Other key trades

Plumber or gasfitter

Plumbers and gasfitters are responsible for installing, testing, repairing and maintaining water and gas appliances or systems. This includes pipes, drainage systems, roof and stormwater drainage systems, hot water systems, toilets, sinks, taps, showers, heating, stovetops and air-conditioners.

Some types of work must be done by a plumber with a specialised licence. For example, installing stormwater piping requires the plumber to have a Roofing (stormwater) licence.

Some plumbing work requires the licensed plumber to issue a compliance certificate to the owner.

Plumber classes and categories

Each plumber class is divided into the categories of main, specialised and restricted.

Electrician

Electrical work should always be done by a qualified electrician. Never do your own electrical work. This is dangerous as it can kill or injure someone or start a fire.

Electricians and electrical contractors are licensed and registered through Energy Safe Victoria (ESV). A certificate of electrical safety must be provided by a licensed electrical worker or a registered electrical contractor for all electrical installation work done.

Asbestos removalist

If your project involves disturbing asbestos on your property, you should engage a licensed asbestos removalist to manage the safety risks.

Asbestos removalists are licensed through WorkSafe.

Other professionals

Last updated 30 June 2026
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