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EP&A Act (NSW)

The EP&A Act 1979 (NSW) is the umbrella planning statute behind every DA, CC, OC, LEP, DCP, and SEPP in NSW. Builder primer on the parts that matter on site.

By Chalkline. Last updated 14 May 2026. Verified 14 May 2026.

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The Environmental Planning and Assessment Act 1979 (NSW), almost always called the EP&A Act, is the umbrella planning statute for New South Wales. Every development application, construction certificate, occupation certificate, and complying development certificate issued in NSW traces its legal authority back to this Act. The Act delegates the local detail to subordinate planning instruments: SEPPs (state-wide), LEPs (per council), and DCPs (per council, controls only).

The parts that touch a residential builder. The Act runs to six numbered Parts. Three matter on site:

  • Part 4 (Development assessment): governs development applications, determinations, and the operation of development consent. Includes complying development at the lower end and State Significant Development at the upper end.
  • Part 6 (Certification): governs the certificate stream after consent. Construction certificates (CC) confirm the design meets BCA and consent conditions. Occupation certificates (OC) confirm completed work matches the CC and is safe to occupy. Subdivision certificates close out subdivisions.
  • Part 9 (Investigation and enforcement): governs council and certifier enforcement powers, stop-work orders, and offence provisions.

The instrument hierarchy the Act creates, from broadest to narrowest:

  1. SEPPs (State Environmental Planning Policies): state-wide rules made by the NSW Government overriding local instruments where they conflict.
  2. LEPs (Local Environmental Plans): per-council statutory plans setting zoning, land-use tables, height controls, FSR, and heritage listings.
  3. DCPs (Development Control Plans): per-council non-statutory development controls (setbacks, fences, materials, design) supporting an LEP. Council weighs them but is not strictly bound by them.

For builders on site. The Act itself is rarely opened on a job. What builders meet is its downstream output: the DA conditions list, the CC and OC certificates, the council inspection regime, and the certifier’s authority to issue stop-work directions under Part 9. When a certifier or council inspector cites a section number like 6.10 or 4.55, that is a clause inside the EP&A Act; the consent under it is the rule in force on the site.

State scope. EP&A is NSW only. Each state and territory has its own equivalent (VIC: Planning and Environment Act 1987; QLD: Planning Act 2016; WA: Planning and Development Act 2005; etc.).

Also known as: Environmental Planning and Assessment Act 1979, EPA Act NSW, EP and A Act.

Category: Compliance / planning law / NSW.

See also

Last updated: 2026-05-14. Verified: 2026-05-14.

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