PA2026/0187 – Development 577 LEE POINT RD – PLan

The application is fragmented due to its staged nature, presenting interconnected stormwater and earthworks components in isolation. This creates two critical information gaps that prevent a proper assessment by the public and the Development Consent Authority:

The Missing Fill & Drainage Source (Stage 2 Detention Basin): The proposal relies entirely on a future “Stage 2” detention basin to provide the necessary remediation fill and to reduce upstream flows to prevent recurring erosion. However, the application provides virtually no data on this basin’s design, capacity, construction timing, or viability as a fill source.
Undefined Downstream Stormwater Outfalls: The exhibited material frequently references stormwater diversion, but fails to provide hydrological modelling, civil drawing details, or an explanation of how the broader system functions and where water ultimately discharges.

Document Review

Document 1: Statement of Effect

Purpose: To establish that the proposal is necessary remediation work required before the CN land can be transferred into the Casuarina Coastal Reserve, rather than a “new development.”
Critique: While it outlines intended environmental benefits, it introduces the reliance on the future detention basin and upstream drainage works without explaining how the broader stormwater system is intended to function.

Document 2: Attachment F – Gully Rehabilitation Fill Plan

Purpose: To map out the physical footprint of the works, vegetation clearing limits, no-go zones, and access tracks.
Critique: It identifies the future basin as the fill source but omits the total volume of fill required. It fails to address whether the basin can supply that volume, or how the project timeline and methodology would be impacted if the basin’s design or timing changes.

Document 3: Attachment G – Revegetation Proposal

Purpose: To detail the rehabilitation of disturbed areas using local native species, salvaged topsoil, and cycad protection.
Critique: It lacks clear, long-term performance targets, success criteria, or monitoring triggers to measure rehabilitation success. Additionally, it leaves implementation details unresolved by delegating the final clearing-minimisation methodology to the contractor.

Document 4: Attachment A – DP18/0409 Permits and Endorsed Drawings

Purpose: To show that the gully remediation sits within a long-standing, staged planning approval framework approved for the Lee Point subdivision in 2018.
Critique: Confirms that staging has split the stormwater system across separate applications, making it impossible to assess the current remediation works within the context of the broader, complete drainage framework.

Documents 5, 6 & 7: Attachments B, C & D – NT EPA EIS Assessment (2018), EPBC Approval, and 2023 EPBC Variation Notice

Purpose: To demonstrate that the broader Lee Point master-planned development has already secured rigorous environmental and Commonwealth approvals.
Critique: These documents apply to the macro-development framework, not this specific gully remediation. Relying on legacy high-level approvals does not exempt the applicant from providing detailed engineering, fill, and drainage data for the specific works currently being proposed.

Document 9: Attachment H – Erosion and Sediment Control Plan (ESCP)

Purpose: To outline temporary construction-phase controls (sediment basins, diversion bunds) to manage runoff and site disturbance.
Critique: The plan explicitly names the project “2CRU Stage 2 Outfall and Gully Rehab,” confirming that these works are an outfall component of a broader drainage scheme, yet it provides no information on how that final drainage system operates post-construction. It also fails to justify why this specific earthwork methodology was selected over less disruptive alternatives.

Document 10: Attachment J – Vegetation Assessment

Purpose: To assess the flora within the clearing footprint and demonstrate compliance with Clause 3.2 of the NT Planning Scheme.
Critique: The assessment is strictly limited to vegetation (omitting fauna and broader ecological connectivity). While concluding no sensitive communities exist, it notes emerging dry coastal vine thicket/rainforest characteristics within the drainage lines, raising unaddressed questions about the true impact of clearing inside these sensitive flow paths.

Document 11: Attachment I – Earthworks and Drainage Memo

Purpose: To provide the engineering justification for excavation and filling under Clause 5.8.9 of the NT Planning Scheme.
Critique: This is the most critical document because it openly admits the remediation relies on the future Stage 2 basin for fill and long-term flow diversion. However, it fails to provide the underlying engineering data, hydrological modelling, outfall designs, or an assessment of alternative remediation options.

Document 12: Attachment K – Title Search and Administrative Interests

Purpose: To confirm ownership (Defence Housing Australia) and identify statutory constraints/overlays on Lot 4873.
Critique: The title confirms the site is subject to both Primary and Secondary Land Subject to Storm Surge (LSSS) overlays. This reinforces the critical need for—and distinct lack of—clear information regarding the wider hydrological setting and coastal drainage outfalls.

Document 13: Conceptual Rehabilitation Cross-Section Diagram

Purpose: To provide a simple visual graphic of the gully benching, filling, and topsoil placement.
Critique: It is purely illustrative and lacks engineering weight. It provides no dimensions, exact fill volumes, drainage calculations, geotechnical data, or hydrological analysis.

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Sample Submission

PA2026/0187 – Excavation and Fill (Erosion Gully Remediation)

Lot 4873, 577 Lee Point Road, Lee Point

Submission

The application identifies a detention basin and future drainage works as part of the proposed erosion management strategy. However, the exhibited material provides little information about those elements or how they function within the broader stormwater system.

The Earthworks and Drainage Memo states that clean fill material for the proposed remediation works will be taken from a future detention basin in Stage 2.

The same document states that future drainage works will reduce stormwater flows reaching the gullies and reduce the risk of recurring erosion. Existing flow paths are stated to remain until future subdivision works divert flows around the site.

The Gully Rehabilitation Fill Plan also identifies a Future SW Detention Basin as the source of fill material for the proposed works.

The detention basin and future drainage works are therefore part of the proposal’s stated rationale and are identified in the application as relevant to the long-term performance of the remediation works.

However, the application provides little information regarding the detention basin itself, the broader drainage system, downstream drainage arrangements, outfall infrastructure, or where stormwater ultimately discharges.

This creates an assessment problem. The application relies on elements of a broader stormwater system but does not provide enough information to understand how that system functions.

This issue is compounded by staging. The application refers to infrastructure associated with later stages, yet provides only limited information about how that infrastructure interacts with the proposed remediation works. As a result, parts of the stormwater system are being considered separately even though they are intended to operate together.

The broader drainage framework therefore remains unclear, making it difficult to assess the cumulative effects of the drainage changes referred to in the application or to understand how the proposed remediation works will function within the overall stormwater system.

The Conceptual Rehabilitation Diagram illustrates filling, reshaping and revegetation of the gullies. However, it does not show the detention basin, downstream drainage arrangements or how the rehabilitated landform interacts with the broader stormwater system referred to elsewhere in the application.

For these reasons, determination of PA2026/0187 should be deferred until sufficient information is provided regarding:

• the detention basin identified as the source of fill material;

• the broader drainage system referred to in the application;

• downstream drainage and outfall arrangements; and

• how the proposed remediation works fit within the broader stormwater framework described in the application.

PLan submission

SUBMISSION TO THE DEVELOPMENT CONSENT AUTHORITY (DCA)

OBJECTION TO DEVELOPMENT APPLICATION / VARIATION WORKS AT LEE POINT

To: The Chairman

Darwin Development Consent Authority

GPO Box 1680, Darwin NT 0801

Email: das.ntg@nt.gov.au

Regarding Application/Permit Reference: [Insert DCA Application, Permit, or Variation Number here, e.g., Variation to DP18-0409] Location of Works: Lee Point Development Area, Darwin

SUBMITTER DETAILS

Full Name: [Insert Your Name Here] * Postal Address: [Insert Your Address Here] * Email Address: [Insert Your Email Here] * Phone Number: [Insert Your Phone Number Here] I am lodging this formal submission under the provisions of the Planning Act 1999 to declare my strong objection to the proposed development activities, design variations, and associated earthworks at Lee Point.

1. EXECUTIVE SUMMARY

As a member of the Northern Territory community, I hold grave concerns regarding the environmental, structural, and procedural impacts of the ongoing proposals at Lee Point. This submission demonstrates that the current plans fail to align with critical federal environmental variations, present severe risks to local biodiversity through unstable gully and vegetation management, and rely on highly volatile engineering designs that were being revised as recently as late May 2026.

Furthermore, the applicant’s failure to provide technical specifications for vital infrastructure—specifically a referenced future detention basin—constitutes unacceptable piecemeal planning. The unknown runoff, sediment, and hydrological impacts of this entire project pose an immediate, unassessed threat to the adjacent Casuarina Coastal Reserve and the pristine beach front. Consequently, I urge the Authority to reject the application in its current form.

2. KEY GROUNDS FOR OBJECTION

Ground A: Non-Compliance with Federal Environmental Protections (EPBC Mandates)

Context: The Lee Point development area is strictly bound by Commonwealth environmental conditions under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act).
Objection: I suggest that the Development Consent Authority risk overstepping its regulatory bounds or granting un-executable consents if it approves variations or works that conflict with, or jeopardize, the strict conservation mandates outlined in the Commonwealth EPBC Approval Decision (Ref: 2015-7591) and its subsequent Variation Notices (dated 15 June 2023 and 27 July 2025). It appears highly probable that the protection of critical habitat for threatened and endangered species—such as the Gouldian Finch and migratory shorebirds—carries legal and ecological precedence under Commonwealth law that overrides local approvals.
The developer’s reliance on repeated variation notices suggests a shifting framework that may actively threaten local biodiversity. Consequently, I urge the DCA to satisfy itself that no territory-level consents breach or circumvent these federal environmental thresholds before granting any approvals.

Ground B: Volatile Soil Conditions and Severe Gully Erosion Risks

Context: Lee Point features highly sensitive, erodible soils that are highly susceptible to the Top End’s intense monsoonal weather patterns.
Objection: The developer’s reliance on a heavily modified Gully Rehabilitation Fill Plan and an Erosion and Sediment Control Plan (both revised as recently as late May 2026) proves that topsoil stability and runoff management remain volatile, unresolved engineering risks. The monsoon-driven wet seasons present an extreme risk of severe gully failures, mud-fines runoff, and marine pollution. I object to any further clearance or earthworks being approved when sediment and erosion controls remain a moving target on such unstable terrain.

Ground C: Flawed Drainage Planning and Hydrological Disruption

Context: Modifying the natural topography changes how stormwater moves across Lee Point, threatening neighboring ecosystems like monsoon vine thickets.
Objection: I raise significant concerns regarding the Earthworks and Drainage Memo (Revised May 2026). Diverting natural stormwater flows and introducing widespread hard surfaces will drastically accelerate runoff velocity. This risks suffocating local flora, altering the water table, and creating unmanageable hydrological pressure on existing natural gullies. The DCA must demand a comprehensive, independent hydrological audit rather than relying on the developer’s self-issued, frequently altered technical memos before granting any further consents.

Ground D: Failure to Disclose Infrastructure Details – Hidden Impacts on Casuarina Coastal Reserve and Beach Front

Context: The applicant references a future “detention basin” to manage stormwater runoff but has withheld the engineering specifications, exact location, capacity limits, and discharge pathways of this infrastructure from the current public exhibition.
Objection: I strongly object to the DCA assessing this application in a piecemeal fashion. A detention basin is a critical piece of water-management infrastructure; without its full technical details, it is impossible for the public or the Authority to evaluate the downstream impacts of the project. Lee Point sits directly above the highly sensitive Casuarina Coastal Reserve and its pristine beach front. Discharging high-velocity, potentially contaminated urban stormwater into or adjacent to the Reserve presents severe risks:

Coastal and Beach Erosion: Uncontrolled or concentrated stormwater release from a poorly designed basin will cause catastrophic washout, carving out the sand dunes and destroying the fragile beach front topography.
Ecological Degradation of the Reserve: The Casuarina Coastal Reserve is a vital sanctuary for local wildlife and migratory birds. Sudden influxes of nutrient-rich, sediment-heavy urban runoff will fuel weed incursions, erode natural walking tracks, and alter the fragile ecosystem of the reserve.
Piecemeal Assessment Risk: By deferring the details of the detention basin to a future date, the developer is attempting to bypass integrated environmental scrutiny. The DCA cannot lawfully evaluate the overall drainage strategy while the primary mechanism for capturing and treating this water remains an undisclosed mystery.

Ground E: Inadequate Substitution of Remnant Vegetation with Future Promises

Context: High-value, old-growth habitat is being threatened with clearing, under the justification of future replanting schemes.
Objection: While I note the inclusion of a Revegetation Proposal (Revised May 2026), a promise to replant habitat in the future cannot mitigate the immediate, catastrophic loss of old-growth remnant vegetation identified in the site’s Vegetation Assessment. Artificial revegetation projects have an incredibly high failure rate in the Top End climate and take decades to replicate the complex ecosystems currently supporting local wildlife. The preservation and conservation of existing, intact habitat must be prioritized over clearing and subsequent, unproven “rehabilitation.”

3. REQUESTED OUTCOME & ACTION BY THE DCA

For the reasons detailed above, it is clear that this development proposal remains unsafe for the fragile Lee Point environment and lacks stable engineering and environmental safeguards.

I formally request that the Development Consent Authority:

Reject the requested application, variation, or clearing permit in its entirety.
Decline to determine the application until full engineering blueprints, environmental impact statements, and discharge simulations for the proposed future detention basin are provided for public review, specifically detailing how the Casuarina Coastal Reserve and beach front will be protected from accelerated runoff and erosion.
Refuse to grant any further incremental consents until completely independent environmental, soil stability, and hydrological impact assessments are conducted and made fully available for public scrutiny.
Hold a public hearing regarding this application so that community members, traditional owners, and independent environmental experts can voice their concerns directly to the DCA Board.

Date: [Insert Date Here] Signature: _________________________________________

PA2026/0187 – Development 577 LEE POINT RD

Core Overarching Issues