NSW Government Establishes Gulguer National Park under Cumberland Plain Conservation Plan

Overview

The New South Wales Government has established Gulguer National Park, a new 1,100-hectare protected area located west of Bringelly in Western Sydney. Announced on 26 July 2024, the park represents one of the most significant conservation milestones in the Western Sydney region in recent years, with approximately 700 hectares of newly acquired land added to the existing Bents Basin State Conservation Area and Gulguer Nature Reserve. The park is expected to open to the public within six months of the announcement and is a direct deliverable under the Cumberland Plain Conservation Plan (CPCP), which operates under the Biodiversity Conservation Act 2016 (NSW).

The establishment of Gulguer National Park is not a standalone conservation gesture. It is the practical execution of a strategic, government-led biodiversity planning mechanism designed to balance two competing pressures in Western Sydney: the need to deliver approximately 73,000 new homes in one of Australia’s fastest-growing urban corridors, and the need to provide durable protection for critically endangered ecosystems and threatened species that occupy the same landscape. For environmental professionals and their clients, this development signals a fundamental shift in how biodiversity obligations are being discharged in Western Sydney, moving away from parcel-by-parcel ecological assessment and toward upfront, strategic regional certifications that codify development and conservation zones with considerable legal force.

The park is named after the traditional Aboriginal word representing the swirling waters of the Nepean River and preserves significant cultural heritage including rock art, shelters, and artefacts associated with the Dharawal and Gundungurra peoples. This integration of cultural and ecological heritage within a single gazetted protected area sets a precedent for how future conservation planning instruments in New South Wales might address both biodiversity and heritage obligations concurrently, rather than treating them as separate regulatory streams.

Key details of Gulguer National Park and the Cumberland Plain Conservation Plan

Gulguer National Park covers a total area of 1,100 hectares, of which approximately 700 hectares represents newly acquired land that has been added to the pre-existing Bents Basin State Conservation Area and Gulguer Nature Reserve. The park is gazetted under the National Parks and Wildlife Act 1974 (NSW) and sits within the broader regulatory architecture of the Cumberland Plain Conservation Plan, which itself operates as a regional strategic instrument under the Biodiversity Conservation Act 2016 (NSW). The CPCP is the mechanism by which the NSW Government is attempting to provide upfront biodiversity certification across the Western Sydney growth area, allowing complying development to proceed without triggering individual biodiversity assessments under the Biodiversity Offsets Scheme in cases where the development falls within precertified zones.

The park secures permanent protection for two critically endangered Threatened Ecological Communities (TECs): the Shale Sandstone Transition Forest and the Sydney Turpentine-Ironbark Forest. Both TECs are listed under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) at the federal level and under the Biodiversity Conservation Act 2016 (NSW) at the state level. This dual listing means that any development proposals affecting remnant patches of these communities outside the park boundary will continue to trigger assessment obligations under both regulatory frameworks. The park’s existence does not extinguish those obligations; rather, it creates a reference point for offset adequacy arguments and restoration benchmarks in ecological assessments conducted elsewhere in the Cumberland Plain.

The ecological significance of the park is further evidenced by the confirmed presence of at least 28 threatened species within its boundaries. Species confirmed within or dependent on the park’s corridors include the southern greater glider (Petauroides volans), powerful owl (Ninox strenua), giant burrowing frog (Heleioporus australiacus), eastern coastal free-tailed bat (Mormopterus norfolkensis), and the Cumberland land snail and Dural land snail. The southern greater glider is listed as endangered under the EPBC Act following a status uplift in 2022, and its confirmed presence within the park’s corridor network has direct implications for ecological assessments on adjacent land where hollow-bearing trees and arboreal movement corridors are present. The connectivity function of the park, linking existing protected areas into a contiguous corridor, is central to its conservation value and to the regulatory weight it carries in cumulative impact assessments.

The CPCP was developed to underpin the delivery of approximately 73,000 new dwellings across the Western Sydney growth corridor, including precincts at Glenfield, Oran Park, Turner Road, and the broader South West Growth Area. The plan establishes a system of biodiversity stewardship sites and conservation areas that are intended to offset the biodiversity credits generated by complying development within designated development zones. Gulguer National Park is positioned as a cornerstone offset and corridor asset within that system. Developers operating under a valid CPCP certification are not automatically exempt from all ecological assessment obligations, but the certification does provide a structured pathway that reduces the scope and cost of site-level biodiversity assessment compared to the full Biodiversity Offsets Scheme process.

Australian context: implications for NSW biodiversity regulation and planning frameworks

For environmental consultants, planners, and developers operating across New South Wales, the gazettal of Gulguer National Park and its role within the CPCP carries practical regulatory implications that extend well beyond the park boundary. The CPCP represents one of the most ambitious applications of upfront regional biodiversity certification in the state’s planning history, and Gulguer National Park is central to the credibility of that certification. Its permanent protection of critically endangered TECs and confirmed threatened species habitat provides the conservation backbone against which the plan’s offset calculations are measured. Where development proposals are assessed under the CPCP framework, practitioners should expect that the existence and management of the park will be referenced in both approval conditions and offset adequacy determinations. For projects situated adjacent to the park or within identified corridor zones, the heightened sensitivity of the surrounding landscape will continue to inform the scope of required ecological assessments, even where CPCP certification reduces the threshold for triggering the full Biodiversity Offsets Scheme. The park’s dual function — as both a cultural heritage site and an ecological asset — also signals that future strategic conservation instruments in New South Wales are likely to integrate heritage considerations more explicitly into biodiversity planning frameworks, a trend that environmental practitioners should monitor as the state continues to expand its regional conservation planning approach.

References and related sources

• Primary source: www.environment.nsw.gov.au
• nsw.gov.au
• NEPM Assessment of Site Contamination
• EPBC Act

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This is an iEnvi Machete news summary. Prepared by iEnvi to summarise the source article for contaminated land, groundwater, remediation, approvals and site risk professionals.

Published: 26 Jul 2026

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