The construction process

Your principal certifier will review and assess your CC application to ensure:

• the CC plans and specifications are consistent with the plans approved under the development consent
• you have complied with the conditions of development consent
• the development complies with the National Construction Code and all relevant technical standards
• your application complies with any BASIX commitments and relevant bushfire provisions.

If you've addressed all items in Step 3, your PC will issue a formal determination and CC.

Your PC will also send a copy of the stamped approved plans and specifications with your CC.

The CC will lapse with the development consent, unless you physically start building work before the consent lapses.

You must notify your PC of your intention to start works at least two days before any building works.

Before construction starts, you must also provide your PC with:

Builder's details

• The builder's name, address and NSW licence number for all residential work over $10,000.

Home Building Compensation Fund

• All residential work over $20,000 must have a certificate of insurance under the Home Building Compensation Fund. Certificates should show the correct property details. They should also include all work covered under the building contract, eg, dwelling and swimming pool.
• Insurance under the Home Building Compensation Fund allows you to make a claim for a loss (eg, financial loss or damage) caused by the contractor.

Owner-builder permit

• If your residential building work is over $10,000 and you choose to complete the work as an owner-builder, you will need an owner-builder permit from NSW Fair Trading.
• If your building work is over $20,000, you'll also need to complete certain units of competency or have the approved equivalent qualifications and experience.

Your building works can start once your PC issues your CC.

Your PC will need to carry out critical stage inspections during construction. If these inspections are not carried out at the right time, you may not be able to get an occupation certificate.

You will need to obtain an occupation certificate (OC) before you occupy or use any part of the building. Your PC will issue the OC. The OC authorises the occupation and use of a new building or building section in line with the:

• relevant National Construction Code classification: the NCC sets the standards for the design and construction of different classes of buildings
• development consent conditions.

Your PC will need to ensure they have:

• complied with the relevant development consent conditions and other regulatory requirements,
  and
• carried out all critical stage inspections, including the final plumbing and drainage inspections.

Inspections required generally include piers, slabs, frames, stormwater and wet areas. Council will need to carry out all plumbing and drainage inspections.

There are two types of OCs:

• OC: Allows the occupation or use of a new building (including alterations/extensions), or the new use of an existing building resulting from a change in its use.
• Partial OC: Allows the occupation or use of a partially completed building, or a new use of part of an existing building resulting from a change of use of the building. If your PC issues a partial OC, you'll still need an OC when all building work or the change of use is complete.

OCs are not required for buildings which are exempt development.

Before your PC issues the OC, they will consider the:

• structural adequacy
• fire safety,
  and
• health, safety and amenity of future occupants of the building.

Once all these requirements have been met, your PC can issue the OC.

You can now occupy or use your building.