When I stepped back from Council, I did so with clarity and optimism — not just about where our cities were headed, but about the role planning could play in shaping our future. For over two decades, I’ve worked at the intersection of planning, politics, and community, as a mayor, consultant, and researcher. I’ve seen the power of good planning to create liveable, inclusive, future-ready places. I’ve also seen how easily it can be derailed by short-term thinking — and how costly that can be for clients, communities, and councils alike. Greiss Planning exists to bring clarity, rigour, and steady leadership to the approvals process, so good projects can move forward with confidence.
At a glance
- A clause 4.6 variation allows a consent authority to grant consent to development that contravenes a development standard in a Local Environmental Plan (LEP).
- It does not remove planning controls. It provides a structured pathway to justify flexibility.
- For development applications lodged on or after 1 November 2023, the applicant must demonstrate that compliance is unreasonable or unnecessary in the circumstances, and that there are sufficient environmental planning grounds to justify the contravention.
- Variations are not automatic, and they are not simply a matter of percentage exceedance.
- The quality of the written justification is often decisive.
Planning controls in NSW are often expressed as numbers: maximum building heights, floor space ratios (FSR), minimum lot sizes and similar standards.
But land is not uniform. Sites slope. Streetscapes vary. Existing buildings constrain outcomes. And occasionally, strict compliance with a development standard does not produce the best planning outcome.
Clause 4.6 of the Standard Instrument — Principal Local Environmental Plan, which is carried into each council's LEP, provides a formal mechanism for flexibility in those circumstances. It is often called “section 4.6”, but it is a clause of the LEP, not a section of the Environmental Planning and Assessment Act 1979.
Used properly, it is not a loophole. It is a disciplined statutory test.
What is a clause 4.6 variation?
A clause 4.6 variation allows a consent authority (usually a council or a planning panel) to grant development consent even though a proposal contravenes a development standard in an environmental planning instrument such as an LEP.
Development standards commonly varied include:
- Maximum building height
- Floor space ratio (FSR)
- Minimum lot size
- Minimum subdivision lot size
- Other numerical standards identified in the LEP
Clause 4.6 does not apply to every planning control. It applies to development standards, not to Development Control Plan (DCP) provisions, and some standards are expressly excluded from its operation in the LEP itself.
Importantly, it does not eliminate the standard. It allows the consent authority to approve a departure where justified.
Why does clause 4.6 exist?
Planning frameworks aim for consistency, fairness and predictability. Numeric standards are one way to achieve that.
However, strict uniformity can sometimes create poor or unintended outcomes, such as:
- A minor height exceedance caused by topography that has no real visual impact.
- A small FSR variation that improves internal amenity and design quality.
- A lot size shortfall where the subdivision still achieves its strategic purpose.
Clause 4.6 recognises that planning is not purely mathematical. It allows flexibility while maintaining a structured legal threshold.
The legal test: what must be demonstrated?
Clause 4.6 was amended with effect from 1 November 2023. For development applications lodged on or after that date, the applicant must demonstrate, and the consent authority must be satisfied, that:
- Compliance with the development standard is unreasonable or unnecessary in the circumstances of the case, and
- There are sufficient environmental planning grounds to justify the contravention.
The former additional requirement — that the development be in the public interest because it is consistent with the objectives of the standard and the zone — was removed by those amendments. The zone objectives and the public interest have not disappeared: the consent authority must still have regard to the zone objectives under clause 2.3 of the LEP and consider the public interest under section 4.15(1)(e) of the Act.
The request must still be made in writing. The requirement now sits in the Environmental Planning and Assessment Regulation 2021 rather than in clause 4.6 itself, and a separate request is needed for each development standard being varied. Details of variation requests are published on the NSW Planning Portal.
Applications lodged before 1 November 2023 continue to be assessed under the previous version of the clause.
“Unreasonable or unnecessary”: what does that mean?
This phrase has been shaped by planning case law over many years.
In practical terms, compliance may be unreasonable or unnecessary where:
- The underlying objective of the standard is achieved despite non-compliance.
- The underlying objective is not relevant to the development, or would be defeated by strict compliance.
- Site-specific circumstances make literal compliance inappropriate.
- The exceedance is technical rather than substantive in planning impact.
However, it is not enough to say:
- “The exceedance is minor.”
- “Other developments in the area are similar.”
- “It improves yield or feasibility.”
The reasoning must connect the variation to planning outcomes, not just convenience or commercial preference.
Environmental planning grounds: what are they?
This is where many applications succeed or fail.
Environmental planning grounds must:
- Be specific to the site and proposal.
- Relate to planning impacts and merit.
- Go beyond personal circumstances or financial considerations.
- Justify the contravention itself, not simply the development as a whole.
Examples might include:
- The topography of the site results in a minor height variation without increasing visual bulk.
- A design response reduces overshadowing compared to a compliant envelope.
- A slight FSR exceedance delivers improved landscaping and tree retention.
- Built form articulation reduces perceived scale despite a technical contravention.
Arguments that focus solely on cost, return on investment or construction practicality are rarely sufficient on their own.
Is there a percentage limit?
A common misconception is that variations under 10% are “acceptable” and those over 10% are not.
There is no statutory percentage threshold in clause 4.6 itself. The focus is on:
- The planning impact of the variation.
- Whether compliance is genuinely unreasonable or unnecessary.
- The strength of the environmental planning grounds and the written justification.
The size of a variation can still matter in practice: some councils refer larger variations to their local planning panel, and a larger departure generally needs a stronger justification. A 3% variation can fail if poorly justified. A 15% variation can succeed if carefully reasoned.
The role of objectives
Every development standard has stated objectives in the LEP. Although consistency with those objectives is no longer a separate limb of the test, it remains one of the most common ways of showing that compliance is unreasonable or unnecessary.
For example, height standards often aim to:
- Ensure compatibility with streetscape character.
- Protect the amenity of neighbouring properties.
- Maintain solar access.
- Limit visual bulk.
If a proposal exceeds height by 400mm but still achieves these objectives in substance, that is a strong basis for arguing strict compliance is unnecessary.
Common scenarios where clause 4.6 is considered
Across NSW, variations are frequently sought in relation to:
- Height exceedances caused by sloping sites.
- FSR exceedances driven by building efficiency or design refinement.
- Lot size variations in infill subdivisions.
Each case turns on its own facts. Context is decisive.
Risks and constraints
While clause 4.6 provides flexibility, it also introduces risk.
Key considerations include:
- Some councils apply stricter scrutiny than others.
- Variations in sensitive locations (heritage areas, foreshore zones, transition areas) may face greater resistance.
- Poorly drafted requests can undermine otherwise strong proposals.
- Neighbour submissions often focus on numeric exceedances, even if impacts are limited.
A variation is not an “add-on” document prepared at the end of design. It should be integrated into the design strategy from the outset.
The importance of the written request
The written request is not a formality. It is the document on which the consent authority's power to approve the variation depends.
A well-prepared request will:
- Identify the precise standard being contravened.
- Quantify the extent of the variation.
- Explain why compliance is unreasonable or unnecessary in the circumstances.
- Provide clear, site-specific environmental planning grounds that justify the contravention.
- Address the objectives of the standard and the zone where they support the argument.
- Avoid emotional or defensive language.
Tone matters. Clarity matters more.
The document should read as a structured planning analysis, not an advocacy piece.
Strategic considerations before lodgement
Before proceeding with a variation, it is prudent to consider:
- Is the design outcome defensible on merit?
- Could a minor redesign achieve compliance without compromising intent?
- How has the consent authority treated similar variations? The Planning Portal register can help here.
- Is the variation central to the project's viability?
- Does the proposal remain consistent with the broader strategic intent of the LEP?
In some cases, redesign is the wiser path. In others, a carefully framed variation strengthens the overall outcome.
Clause 4.6 is not a shortcut
Clause 4.6 is not a workaround to ignore planning controls.
Consent authorities are required to apply the statutory test rigorously, and the courts have repeatedly emphasised that flexibility must not undermine the integrity of development standards.
When used responsibly, clause 4.6 supports good planning. When used opportunistically, it attracts resistance.
Practical next steps
If your proposal does not comply with an LEP development standard:
- Confirm that the control is in fact a development standard capable of variation.
- Review the objectives of the standard and the zone.
- Assess whether the proposal genuinely achieves those objectives.
- Identify site-specific environmental planning grounds.
- Integrate the variation into the design early.
- Prepare a structured written request for each standard varied.
Above all, approach the variation as a strategic planning exercise — not a numeric negotiation.
Invitation
If you are considering a proposal that does not strictly comply with an LEP development standard, a strategic review at an early stage can clarify whether a clause 4.6 variation is realistic and defensible.
We are always open to a measured discussion about how a variation might sit within the broader planning framework — and whether it strengthens, or weakens, your overall position.
Frequently asked questions
Is “section 4.6” the same as clause 4.6?
Yes. The provision is commonly called section 4.6, but it is clause 4.6 of the LEP that applies to the land, based on the Standard Instrument. It is not a section of the Environmental Planning and Assessment Act 1979.
What changed on 1 November 2023?
For applications lodged on or after that date, the test was reduced to two matters — that compliance is unreasonable or unnecessary, and that there are sufficient environmental planning grounds. The separate public interest test was removed, and the requirement for a written request moved into the Regulation.
Is a clause 4.6 variation difficult to obtain?
It depends on the strength of the planning justification and the context of the site. Variations are neither routinely approved nor automatically refused. Each is assessed on its merits against the statutory test.
Can I seek more than one variation in one application?
Yes. Variations to more than one development standard can be sought in the same application, but each needs its own written request and must be justified separately.
Does a small percentage variation guarantee approval?
No. Percentage alone is not determinative. The consent authority must be satisfied that compliance is unreasonable or unnecessary and that there are sufficient environmental planning grounds.
Can neighbours object to a variation?
Where the development application is notified under the council's community participation plan, neighbours can make submissions, including about any variation. Submissions do not determine the outcome; the consent authority must still assess the request against the statutory test.
Is clause 4.6 the same as a section 4.55 modification?
No. Clause 4.6 applies when a development application seeks to contravene a development standard. Section 4.55 of the Act deals with modifying a development consent that has already been granted.