NSW · $499 · Modification
NSW Section 4.55 Modification Submission
Submission supporting a modification of an existing DA consent under s 4.55 EP&A Act 1979. Argues the modified development is substantially the same as that originally approved.
Start with your property address
Continue to the intake — confirm your address, add your proposal description, upload supporting docs, pay $499.
See a sample report → — real output from this engine for a demo property.
Substantially-the-same test
Moto Projects + Vacik framework — quantitative + qualitative comparison demonstrating the cumulative effect of changes doesn't transform the development.
s 4.55(1A) / (2) pathway
Pick the right sub-section — minimal-environmental-impact (1A) or other (2) — and structure the submission accordingly.
Before / after framing
Each change presented as 'this changed from X to Y'. Council reviewers expect this comparative structure.
Who this is for
Mid-construction design changes
You're building and want to vary the approved plans (window relocation, material change, room layout). s 4.55 is the modification pathway.
Post-DA design refinement
Consent granted 6–18 months ago + design has progressed. Modification submission documents the changes and argues for approval.
What's included
- Introduction + the existing consent
- Itemised list of proposed modifications
- Quantitative comparison (GFA / FSR / height / setbacks)
- Qualitative comparison (built form / use / character)
- Environmental impact (for s 4.55(1A))
- Section 4.15 considerations (re-applied to the modification)
- Proposed amended conditions
- Conclusion
- Delivered as PDF + Word
Delivery: PDF + Word emailed on completion, 3 business days
Ready to start?
Frequently asked questions
What is a Statement of Environmental Effects?
Every NSW Development Application needs a SEE — the document that walks council through how the proposal addresses the section 4.15 considerations of the EP&A Act 1979. It's the document council reads first.
Can I lodge a DA with this SEE?
Our consumer-tier SEEs are prepared and signed by Town Planning Online Pty Ltd. Most NSW councils accept these for residential and small commercial DAs. For higher-stakes lodgements (apartment RFBs, contested sites, heritage), we recommend the Application-Grade tier where a registered planner reviews and approves before delivery.
Do you cover all NSW councils?
Yes — every NSW LEP + DCP is reachable through the same framework. The AI grounds the assessment in your specific council's LEP development standards and DCP controls.