A clause 4.6 variation is a written request, lodged with a DA, asking council to approve development that breaches a development standard in the LEP such as the height of buildings or floor space ratio. Since 1 November 2023 the test is in two limbs: the applicant must demonstrate that compliance with the standard is unreasonable or unnecessary in the circumstances of the case, and that there are sufficient environmental planning grounds to justify the contravention. The request is not a plea for leniency. It’s a piece of evidence-based writing that shows the objectives of the standard are still met and explains why this site, this design and this breach deserve a different answer from the number in the LEP.
Key takeaways
- Clause 4.6 applies to development standards in a Standard Instrument LEP such as height, FSR and minimum lot size, but not to DCP controls, which are varied on merit in the SEE.
- The consent authority must be satisfied the applicant has shown compliance is unreasonable or unnecessary and that there are sufficient environmental planning grounds, and must record its reasons.
- A variation of more than 10% generally cannot be determined under staff delegation and, in Sydney and Wollongong councils, goes to the local planning panel.
- Some standards are excluded from clause 4.6 altogether, including minimum lot sizes for subdivision in rural and environmental zones and any standard the council has nominated as excluded in its LEP.
- The strongest requests tie the breach to a site-specific cause and show, with numbers, that the extra height or floor space has no material impact.
What a development standard is, and what it isn’t
Clause 4.6 only operates on development standards in an environmental planning instrument. In a Standard Instrument LEP such as Parramatta LEP 2023, Cumberland LEP 2021 or Central Coast LEP 2022, that means clause 4.3 (height of buildings), clause 4.4 (floor space ratio), clause 4.1 (minimum subdivision lot size) and any local provision framed as a numerical standard, such as a minimum lot size for dual occupancies. DCP controls (setbacks, site coverage, landscaped area, car parking) are not development standards. A DCP departure is argued on merit in the Statement of Environmental Effects and doesn’t need a clause 4.6 request at all.
Not every standard can be varied. Clause 4.6 itself excludes some standards, including minimum lot sizes for subdivision in rural and environmental zones, and after the 2023 reforms councils can nominate further standards in their own LEP as excluded. Several Sydney councils have used that to exclude residential lot size or dual occupancy lot size standards, and even where a lot size standard is technically open to variation, councils treat it as close to fixed.
The test after 1 November 2023
The Department rewrote clause 4.6 with effect from 1 November 2023. The Planning Secretary’s concurrence is gone, and the consent authority now has to consider the same matters the applicant has to address. The core of the clause reads, in substance:
- The applicant must demonstrate that compliance with the development standard is unreasonable or unnecessary in the circumstances, and that there are sufficient environmental planning grounds to justify the contravention.
- The consent authority must be satisfied of both, and must keep a record of its decision and the reasons.
The public interest limb that sat in the old clause 4.6(4)(a)(ii) was removed, but the objectives of the standard and of the zone still matter in practice, because consistency with those objectives remains the most common way to show that compliance is unnecessary. The state’s variations review page explains the changes and carries the updated guide to varying development standards.
Limb one: unreasonable or unnecessary
The Land and Environment Court’s long-standing approach gives five recognised ways to show this, and the first is used in most residential cases:
- The objectives of the standard are achieved despite the non-compliance.
- The underlying objective or purpose is not relevant to the development.
- The objective would be defeated or thwarted if compliance were required.
- The standard has been virtually abandoned by council’s own decisions.
- The zoning of the land was unreasonable or inappropriate.
Take a 9 m height standard under clause 4.3 of Parramatta LEP 2023 on a sloping site in a low density street. The objectives of the standard are typically about compatibility with the character of the area and protecting neighbours’ amenity. If the breach is a 600 mm roof ridge over the downhill half of the building, the streetscape at the high side is compliant, the shadow diagrams show no additional shadow on any neighbour’s window at the winter solstice, and the bulk is in line with the two storey homes either side, then the objectives are met and the standard’s purpose is served.
Limb two: sufficient environmental planning grounds
This limb has to be specific to the breach, not to the development as a whole. “The proposal delivers housing” is not a ground; every DA delivers something. Grounds that carry weight in our experience:
- Topography that pushes the measured height up on the low side while the building reads as two storeys from every vantage point.
- A flood planning level that lifts the floor level, with the height breach equal to the required freeboard.
- Retention of a significant tree or a heritage fabric element that forces floor space into a taller form.
- A better planning outcome than the compliant alternative, demonstrated with a drawn compliant scheme that has worse overshadowing or a poorer street presentation.
- Floor space that sits within the existing building envelope, for example a loft conversion adding FSR with no external change.
The habit that separates a good request from a weak one is the counterfactual. Draw the compliant version and show why it is worse.
How big a variation is too big
| Variation | Who usually decides | What changes |
|---|---|---|
| Up to 10% | Council staff under delegation | Request assessed in the normal report; reasons recorded |
| More than 10% | Local planning panel (Sydney, Wollongong) or full council elsewhere | Public meeting, panel report, longer timeframe |
| Any variation to an excluded standard | Nobody | Cannot be varied; redesign or a planning proposal |
There is no numerical cap on what can be approved, but the Department monitors variation decisions and councils report them, and the local planning panel referral for larger variations is set by the Minister. A 30% FSR breach on a duplex will be read as a design problem, not a site problem, and the request is unlikely to survive. Most of the variations we prepare on houses, dual occupancies and townhouses are under 15%, and the ones that succeed have a cause you can point to on the survey.
Where clause 4.6 requests go wrong
- Treating it as a formality. A page of generic text copied from another job will be read as such. The request has to name the standard, the numbers, the objectives and the drawings.
- Arguing the DCP instead of the standard. The request is about the LEP standard and its objectives, not about whether the building is nice.
- No compliant alternative. Without it the panel cannot tell whether compliance would actually produce a worse outcome.
- Numbers that don’t match the plans. Height measured from existing ground level, FSR calculated with the LEP’s definition of gross floor area (with its exclusions for garages, voids and the like). Council will recalculate.
- Forgetting the panel threshold. A 10.5% breach that could have been 9.8% with a minor design change may add months to the process.
Frequently asked questions
Can clause 4.6 be used to vary a DCP setback?
No. Clause 4.6 only applies to development standards in the LEP or a SEPP. DCP controls such as setbacks, site coverage and landscaped area are varied on merit in the Statement of Environmental Effects with reference to the DCP’s objectives.
What is the maximum clause 4.6 variation council can approve?
There is no fixed maximum, but variations over 10% generally cannot be approved under staff delegation and go to a local planning panel or the elected council. Larger variations need stronger site-specific grounds, and some standards are excluded from variation altogether.
Can I use clause 4.6 to subdivide a lot below the minimum lot size?
Rarely. Clause 4.6 does not apply to lot size standards in rural and environmental zones, some councils have excluded residential lot size standards in their LEP, and where it is technically available councils very seldom support it. A lot materially below the standard normally needs a planning proposal to change the LEP map rather than a variation request.
Our planners prepare clause 4.6 variation requests as a stand-alone document that sits alongside the Statement of Environmental Effects, with the compliant alternative drawn and the numbers checked against the LEP definitions. If your design in Parramatta, Cumberland or anywhere in NSW is over a height or FSR standard, send us the plans and the survey and we’ll tell you whether the variation is arguable, or request a fee proposal.