New South Wales’ environmental planning legislation has been amended to apply significant changes to how modification applications are assessed under the Environmental Planning and Assessment Act 1979 (EP&A Act), with the aim of reducing delays and costs for applicants by creating proportionate pathways for modifications, particularly where proposed changes have no environmental impact.
The changes, introduced through the Environmental Planning and Assessment Amendment (Planning System) Reforms Act 2025 (Reforms Act), are to commence on a date yet to be appointed by proclamation.
What’s changing?
Historically, section 4.55(1) of the EP&A Act allowed consent authorities to approve a modification only for minor errors, misdescriptions or miscalculations – a very limiting scope for application. Under the Reforms Act, this section now applies to any modification that has no environmental impact, enabling a streamlined approval process for administrative or technical fixes that do not alter the physical form or environmental outcomes of a development.
New section 4.55A and the 14-day rule
The introduction of section 4.55A imposes a strict assessment period for decision-making regarding applications made under s4.55(1) of the EP&A Act. Consent authorities now have 14 days to determine modifications made under s4.55(1) involving minor error, misdescription or miscalculations or which carry no environmental impact. If no decision is made within that period, the application is deemed approved. This change provides greater certainty for applicants and encourages timely determinations
Refined pathways for minimal impact changes
Because “no-impact” changes now fall under s 4.55(1), the section 4.55(1A) pathway is confined to modifications that involve some change to environmental impacts but only where those impacts remain minimal. These applications typically involve minor physical alterations and still require assessment and notification.
Streamlining the process for substantial modifications
For more substantial modifications under section 4.55(2), the previous requirement for consent authorities to consult with relevant ministers or agencies about concurrence conditions has been removed. This amendment simplifies the process and reduces delays for larger changes.
Why it matters
These reforms create a tiered system for modification applications.
- No-impact changes – quick, low-cost approvals under s 4.55(1);
- Minimal-impact changes – short review process under s 4.55(1A); and
- Significant changes – standard pathway under s 4.55(2), now more efficient.
These changes also align with updates to the Environmental Planning and Assessment Regulation 2021 (EP&A Regulation), facilitating the goal of a faster, more predictable planning system.
Looking ahead
The Reforms Act represents a step toward a more efficient planning framework in New South Wales. By tailoring modification pathways to the level of environmental impact, the system now offers greater certainty for applicants while maintaining appropriate oversight.
If you are considering a modification to an existing consent or want to understand how these reforms could streamline your approvals process, our Planning and Environment team would be pleased to discuss the practical implications for your projects.
