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Class 2 Buildings – NSW Compliance

Active Building Group Australia Pty Ltd is a licensed NSW Class 2 Building Practitioner, authorised to deliver and manage construction and renovation works on Class 2 buildings. Our team is available to guide owners, strata managers and developers through the regulatory requirements that apply to Class 2 projects in New South Wales.

If you are planning works to an apartment, duplex or strata property, it’s essential to understand the legal and compliance obligations involved.

All building and renovation works within a strata or Class 2 building must:

  • Be carried out safely

  • Comply with the Building Code of Australia (BCA) and relevant Australian Standards

  • Meet NSW building, planning and compliance requirements

These requirements exist to protect owners, occupants and builders, and to minimise the risk of defects, non-compliant work and costly rectification down the track.

What is a Class 2 Building?

Under NSW legislation, a Class 2 building is defined as:

An apartment building or a building containing two or more sole-occupancy units, where each unit is a separate dwelling.

All Class 2 projects must comply with the NSW regulatory framework introduced under the building reform program, which focuses on improved design accountability, construction quality and compliance.

Special Considerations for Strata & Class 2 Buildings

When renovating or constructing within strata schemes, duplexes or apartment buildings, it is essential that:

  • Strata approvals are obtained where required

  • Licensed and registered practitioners are engaged

  • Works comply with the Design and Building Practitioners Act 2020 (NSW)

  • Regulated designs are prepared by a Registered Design Practitioner

  • Construction is overseen by a Registered Building Practitioner

To ensure all works are compliant and safe:

  • A Registered Design Practitioner must prepare and declare regulated designs

  • A Registered Building Practitioner must carry out and declare the building work

  • Mandatory declarations must be lodged on the NSW Planning Portal

These reforms improve accountability across the construction process and provide greater protection for owners and strata communities.

Relevant NSW Legislation & Resources

For further information, please refer to:

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