Avoid a Permit Hold Up: 1.7m, 9m, 45° Overlooking Rules for Melbourne
If any part of your new window, balcony or deck sits within the regulated distance of a neighbour’s existing habitable window or private open space, measured at an adult eye-level height and within a sightline angle, Clause 54 Standard A15 and Building Regulations Reg 84 likely apply. Four fixes generally satisfy the standard: an adequate offset, a raised sill height, fixed obscure glazing, or a permanently fixed external screen.
TL;DR:
Overlooking standards in Victoria apply mainly within 9 meters at eye level and a 45 degree sightline angle, affecting windows and balconies near private open spaces.
Compliance can be achieved through four methods: offsetting at least 1.5 meters, raising sill height to 1.7 meters, fixed obscure glazing below 1.7 meters, or installing a fixed external screen with less than 25% transparency.
New regulations from September 2025 streamline approval processes, often allowing a single permit to cover both planning and building siting requirements under Regulation 68.
Developers should include detailed site descriptions, design response drawings, and overlay checks early in the application process to avoid delays and costly redesigns later.
Proper overlooked design involves early planning with builders and architects, integrating screening into the home’s character rather than treating it solely as a legal requirement.
Table of Contents
What the law says about overlooking in Victoria
Standard A15 under Clause 54 of the Victoria Planning Provisions exists to stop new development from creating direct sightlines into a neighbour’s existing habitable room windows or secluded private open space. It is a privacy objective, not a ban on windows or balconies facing a boundary, and most Melbourne renovations can meet it with sensible design choices.
Running alongside Clause 54 is the Building Regulations 2018, which include Part 5 siting provisions, among them Regulation 84 on overlooking. The two frameworks cover similar ground from different angles: one through the planning permit process, the other through building permit siting requirements. Depending on your site, you may need to satisfy one, the other, or both.
A few things vary the picture from suburb to suburb:
Local overlays and neighbourhood character policies can tighten or adjust the standard.
Zone schedules set by individual councils sometimes introduce their own variations.
Heritage overlays can add extra design constraints around window placement.
Because of this, the same overlooking scenario can be assessed differently in Boroondara than in Maribyrnong, so it pays to check your specific planning scheme before you finalise a design.
How overlooking distance is actually measured
The 9 metre, 1.7 metre, 45 degree rule sounds technical, but it is straightforward once you picture it. Under Standard A15, the horizontal distance is measured along the ground between the new window or balcony and the neighbouring habitable window or secluded private open space. The 1.7 metre figure is the height above floor level at which the sightline is assessed, roughly eye level for most adults, and the 45 degree angle defines the cone of vision that counts as a direct view.
Two quick examples make it click:
A new first-floor bedroom window sitting 7 metres from a neighbour’s existing lounge room window, both at a similar height, falls inside the trigger zone and needs a compliance response.
A rear balcony 8.5 metres from a neighbour’s back garden, where that garden qualifies as secluded private open space, is assessed the same way even though no window is involved.
If your window or balcony sits beyond 9 metres, or the sightline clears 45 degrees, A15 generally will not apply.
Four ways to comply, and what each one costs you in light and ventilation
Once you know a window or balcony triggers the standard, you have four accepted paths under Standard A15:
Offset the window or balcony by at least 1.5 metres from the sightline, horizontally, so the direct view is broken.
Raise the sill height to at least 1.7 metres above floor level, which keeps the view above or below eye level.
Install fixed obscure glazing below 1.7 metres, so nobody can see through the affected section regardless of how the window is otherwise treated.
Add a permanently fixed external screen, with no more than 25% transparency, positioned to block the sightline.
There is an important detail that trips up a lot of renovators: obscure glazing only satisfies the standard when it stays fixed below 1.7 metres. An openable obscure window that can be tilted or slid open no longer blocks the view when it is open, so building compliance often still requires that lower section to be fixed shut, with ventilation coming from elsewhere.
Pro Tip: Combine fixed obscure glazing below 1.7 metres with an openable clear pane above it. You keep the privacy compliance and still get proper airflow through the top of the window.
Beyond the four prescribed measures, plenty of Melbourne architects reach for screening that does double duty as a design feature: vertical timber fins, angled battens or perforated metal panels.
Which approvals you need: planning, building, or both
Clause 54 typically comes into play through the planning permit process, and it applies to most multi-dwelling developments and many single dwelling projects depending on the applicable zone schedule and lot size. If your project needs a planning permit for other reasons, an overlooking assessment against A15 will usually be part of that application.
Where things get genuinely useful is Regulation 68. Following Amendment VC282, effective from 8 September 2025, a planning permit that satisfies Clause 54 will in many cases also satisfy Regulation 68(1)(b), meaning you avoid a separate report and consent process for the same siting issue under Part 5 of the Building Regulations. That said, some discrete Part 5 matters, such as maximum street setback, sit outside Clause 54 and still need their own sign off, so confirm your specific case rather than assuming one approval covers everything.
Check whether a planning permit is triggered at all, since some renovations proceed under building permit alone.
Ask your building surveyor whether Regulation 68 applies to your approved planning permit.
Review any overlay or council policy that might add extra decision guidelines beyond the standard.
Your practical application checklist
Preparing a tidy application saves weeks of back and forth with council. Whether you are lodging a planning permit or working through a building permit, aim to include:
Site and neighbourhood description, including photos and measured plans identifying every neighbouring habitable window and secluded private open space within 9 metres.
Design response drawings showing the 1.7 metre sightlines, proposed sill heights, screen locations and material or transparency specifications.
A written design response, required under PPN16, explaining how your proposal meets the decision guidelines or justifying an alternative solution.
Administrative documents: a completed application form, current title, and any covenants or section 173 agreements affecting the site.
Overlay checks, confirming whether a heritage, design or development overlay adds requirements on top of the standard.
If your site includes retaining walls or boundary works, retaining wall permit guidance is worth reading alongside your overlooking response, since both often get assessed together. A short pre-lodgement conversation with council before you submit can also flag issues while they are still cheap to fix on paper.
Design tips from the ground, not just the rulebook
Good overlooking design rarely feels like a compromise once it is built. We have found that clients are happiest when screening is planned as part of the elevation from day one, rather than added as a late fix once a planning objection lands.
The mistake we see most often is assuming a planning permit automatically clears every building-level siting question. It sometimes does, thanks to Regulation 68, but not always, and finding that out mid-construction is far more expensive than confirming it at design stage.
Pro Tip: Bring your builder into the overlooking conversation before you lodge your planning application, not after. A design that satisfies Clause 54 on paper still needs to work as a buildable, fixed, compliant screen on site.
Getting the balance right between privacy and good design
Overlooking rules exist to protect something real, the quiet enjoyment of a backyard or a bedroom that has always felt private. But we think too many homeowners treat A15 as a hurdle to clear rather than a design brief to work with. The best outcomes we see come from architects who treat screening as part of the character of the home, not an afterthought stapled on to satisfy a planner. Start with the checklist above, talk to council early, and bring your builder in before the drawings are locked. That sequence, more than any single design trick, is what keeps a project on schedule.
— Matthew
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FAQ
What are the overlooking requirements in Victoria?
Victoria’s overlooking requirements come from Standard A15 under Clause 54, which protects habitable windows and secluded private open space within 9 metres, measured at 1.7 metres and a 45 degree angle.
What are the new building regulations for Victoria in April 2026?
The most recent relevant change is Amendment VC282, which took effect on 8 September 2025 and updated how Clause 54 interacts with Regulation 68 of the Building Regulations. No further overlooking-specific changes are publicly listed beyond Amendment VC282, so the VC282 framework remains the current reference point.
Can I put a granny flat at the front of my property?
Front-yard placement for a secondary dwelling depends on your council’s zone schedule, setback rules and any overlay, rather than the overlooking standard alone. It is worth raising this directly with your council’s planning department or a planning permit specialist before committing to a design, since front setback rules vary widely between municipalities.
What are the building regulations for overlooking windows in South Australia?
This article covers Victorian requirements under Clause 54 and the Building Regulations 2018, which do not apply in South Australia. South Australian overlooking rules sit under that state’s own planning and design code, so check with South Australia’s planning authority for the applicable standard.
Ready to design around your site’s overlooking constraints
Working out whether your extension or renovation triggers Clause 54, and then designing a screen or sill height that actually looks intentional, is exactly the kind of detail that separates a smooth build from a stalled one. A professional home builder can manage the whole process end to end, from the first design sketch through planning submission to the finished build, so overlooking compliance gets resolved on paper before it ever becomes a site problem.
If you are planning a home extension, a full renovation, or a design and build project anywhere across Melbourne, including Kew, our team can talk through your site’s specific sightlines and what they mean for your layout. Book a Free Project Feasibility Call through Yorcon and we will walk through what your project needs before you spend a dollar on drawings.
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