Last updated October 2026
Granny flat council requirements in Melbourne start with one set of statewide rules, then vary depending on the zone, overlays and lot size that apply to your property. In most residential zones, a small second dwelling of 60m² or less does not need a planning permit, but every one needs a building permit. Your council’s planning scheme decides whether extra controls apply to your block. This guide explains the statewide rules, what differs between councils and how to check your own address before you commit.
Key takeaways
- Victoria’s small second dwelling rules apply across every Melbourne council.
- Most granny flats of 60m² or less on lots of 300m² or more do not need a planning permit.
- Lots under 300m² and some overlays (such as heritage, bushfire or flood) can trigger a planning permit.
- A building permit is required for every granny flat, issued by a registered building surveyor.
- The quickest way to see what applies to your block is a planning property report and a site assessment.
The statewide rules every Melbourne council follows
Victoria has a set of statewide rules for small second dwellings, often called granny flats or small second homes. These rules sit in every council’s planning scheme, so the starting point is the same whether you live in Werribee, Box Hill or Frankston.
Under the Victorian Government small second dwellings rules, a small second dwelling:
- has a floor area of 60m² or less
- must have a kitchen, bathroom and toilet
- sits on the same lot as an existing home
- cannot be subdivided or sold separately from the main home
- cannot be connected to reticulated natural gas
- does not need an extra car parking space
- can be lived in by family or rented to tenants, with residential tenancy laws applying
For a plain English summary, see our guide to small second homes in Victoria.
When a planning permit is needed
In most residential and rural zones, you can build a small second dwelling without a planning permit. Granny flat council requirements in Melbourne change when one of the following applies to your property.
Lot size under 300m²
On a residential zoned lot under 300m² (other than the Low Density Residential Zone), a planning permit is required. The council assesses the design against the state’s residential design standards as part of that permit.
Overlays
Overlays are extra planning controls mapped over specific properties. Some overlays can require a planning permit for buildings and works, even for a small second dwelling. Common examples include:
- heritage overlays
- bushfire management overlays
- flooding overlays, such as land subject to inundation or special building overlays
- environmental, vegetation and significant landscape overlays
- design and development overlays
Whether an overlay triggers a permit depends on its wording in your council’s planning scheme, so check each one that applies to your lot. Our guides on building in bushfire overlay areas and granny flats in flood zones cover two of the most common overlays.
Other planning controls
Some zones and schedules include extra requirements, such as a minimum garden area. If your block already has several buildings, check that a granny flat still leaves enough open space.
The building permit: required for every granny flat
A planning exemption does not remove the need for a building permit. Every granny flat in Melbourne needs one, and it must be issued before construction starts.
Building permits are issued by a registered building surveyor. You can choose a private building surveyor or your council’s municipal building surveyor. Once appointed, they become the relevant building surveyor for your project.
The building surveyor checks that the design meets:
- the Building Regulations, including siting rules such as setbacks, height and overshadowing
- the National Construction Code, including structure, fire safety and energy efficiency
- any conditions of a planning permit, if one was needed
On lots of 300m² or more, siting matters are generally assessed through the building permit process. If the design does not meet a siting rule, the building surveyor may need a report and consent from the council before the permit can be issued. Our guide to granny flat setback requirements in Melbourne explains how setbacks work.
How granny flat council requirements in Melbourne differ
The state rules are the same everywhere, but the details of your property are not. These are the main reasons the requirements differ between suburbs.
Zones and schedules
Each council applies residential zones such as the Neighbourhood Residential Zone, General Residential Zone and Residential Growth Zone. Councils can add schedules to these zones that change some requirements. Two similar blocks in different municipalities may face slightly different rules.
Overlays
Overlays vary the most. Established inner and middle suburbs are more likely to have heritage or neighbourhood character controls. Properties near creeks, rivers and low-lying land may be affected by flooding overlays. Blocks near bushland on the urban fringe are more likely to fall under bushfire controls.
Local laws and council approvals
Councils also run local laws and approvals that sit outside the planning permit. Depending on your council, these may cover:
- protection or removal of significant trees
- building over or near easements
- protecting council assets such as footpaths, kerbs and nature strips during construction
- stormwater connection to the legal point of discharge
- vehicle crossings, if a new crossover is proposed
Ask your council which of these apply. Our guide on existing trees and granny flat builds explains what to check before any tree work.
Title restrictions
Restrictive covenants and section 173 agreements are recorded on your property title, not in the planning scheme, but they can still limit what you build. Read our guide to checking restrictive covenants before you finalise a design.
Granny flat council requirements in Melbourne by region
The statewide small second dwelling rules apply in every metropolitan Melbourne council, but overlays and local laws differ. The table below groups councils by region with general points worth checking. It is a starting point, not a substitute for checking your own address.
| Region | Councils | Worth checking |
|---|---|---|
| Inner | Melbourne, Port Phillip, Yarra | Heritage and character overlays, smaller lots under 300m², rear lane access |
| Inner south east | Bayside, Boroondara, Glen Eira, Stonnington | Heritage and character overlays, significant tree controls, garden area |
| Eastern | Knox, Manningham, Maroondah, Monash, Whitehorse, Yarra Ranges | Vegetation and landscape overlays, sloping blocks, bushfire controls near bushland |
| Northern | Banyule, Darebin, Hume, Merri-bek, Nillumbik, Whittlesea | Heritage in older streets, bushfire and vegetation controls on the fringe, easements in newer estates |
| Western | Brimbank, Hobsons Bay, Maribyrnong, Melton, Moonee Valley, Wyndham | Flooding overlays near waterways, easements and covenants in newer estates |
| Southern | Cardinia, Casey, Frankston, Greater Dandenong, Kingston, Mornington Peninsula | Flooding overlays on low-lying land, coastal and vegetation controls, estate covenants |
If you are building in a growth area, our local guide for Berwick shows what to look for in a newer estate.
How to check the requirements for your address
You do not need to read a whole planning scheme to understand granny flat council requirements in Melbourne for your block. Follow these steps.
1. Get a planning property report
The Victorian Government’s VicPlan tool lets you search your address and create a planning property report. The report shows the zone and any overlays on your property, which tells you straight away whether you may need a planning permit.
2. Check your lot size
Look at your title plan or the property report. If the lot is under 300m² in a residential zone, plan for a planning permit.
3. Read the overlay schedules
For each overlay listed, open the schedule in your council’s planning scheme and check whether buildings and works need a permit. If the wording is unclear, ask the council’s planning department.
4. Get a copy of your title
Order a current title and check for covenants, section 173 agreements and easements.
5. Look at the site itself
Access, slope, trees, existing sheds and the location of sewer and stormwater all shape what is practical. Our guide on what makes a block suitable for a granny flat walks through each one.
6. Talk to a building surveyor
A building surveyor can confirm how the siting rules apply and whether any council report and consent is likely.
Inspections and sign off during the build
Granny flat council requirements in Melbourne do not end when the building permit is issued. The relevant building surveyor lists the mandatory inspections on the permit, and each one is carried out at a set stage of construction.
When the work is finished, the building surveyor issues either an occupancy permit or a certificate of final inspection, as specified on the building permit. Keep this document with your plans and permits, as you may need it later, for example if you rent out the granny flat or sell the property. The Building and Plumbing Commission homeowner fact sheet explains the roles of the building surveyor and owner in more detail.
Other approvals can apply during construction too. Depending on your council and site, you may need consent before building over an easement, a permit to protect council assets near the work area, or approval for a new stormwater connection. Your building surveyor and builder can confirm which of these are relevant to your block.
Energy, water and services
Beyond the granny flat council requirements in Melbourne for planning and siting, the building permit also confirms the granny flat meets current energy efficiency rules under the National Construction Code. Our guide to the 7-star energy rating explains what this means in practice.
Services are another area to plan early. Because a small second dwelling cannot connect to mains gas, the granny flat will run on electricity. The distance from the main house to the new dwelling affects how sewer, water, stormwater and power are connected, so it is worth mapping these on site before you choose a floor plan.
Common issues that slow approvals
Most delays come from details that were missed early. Watch out for:
- Assuming no permit is needed. A planning exemption does not cover overlays or small lots, and a building permit is still required.
- Building over easements. Sewer and drainage easements often run along rear boundaries and may need council consent.
- Measuring from the fence. Fences can sit off the true boundary, so siting should be based on a survey.
- Ignoring existing structures. Sheds, carports and decks count when assessing site coverage and open space.
- Leaving trees until last. Tree controls can affect the footprint and timing of the build.
Choosing a floor plan that suits your council rules
The right floor plan can make granny flat council requirements in Melbourne easier to meet, because it lets you fit the setbacks and open space your block needs. Every G-Flat™ is a 60m², two bedroom home, so it sits within the small second dwelling size limit.
- Stella: an L-shaped plan for corner and irregular blocks.
- Aurora: long and narrow for tight and side-access blocks, with a walk-in robe in bedroom one.
- Lana: a balanced plan that fits most backyards.
- Lana 2: the Lana layout with a second bathroom.
- Sirius: a square plan with large 4 x 3m bedrooms and an L-shaped kitchen.
All five floor plans cost the same within a finish level. See our granny flat designs for Melbourne for each layout.
How Innovista helps with approvals
Every G-Flat™ includes the building permit and all required reports, so the documentation for your building surveyor is part of the build. Our free site assessment looks at access, services, slope and the overlays on your property report, so you know early whether your block may need a planning permit.
A G-Flat™ takes approximately 5 months end to end. If a planning permit is needed, the council process can add time before construction starts, so it is worth checking your property report early.
Frequently asked questions
Do all Melbourne councils follow the same granny flat rules?
Yes, the statewide small second dwelling rules apply in every council. Zones, overlays and local laws still differ by property.
Do I need a planning permit for a granny flat in Melbourne?
Usually not for 60m² or less on a lot of 300m² or more. Lots under 300m² and some overlays can require one.
Who issues the building permit?
A registered building surveyor, either private or employed by your council.
How do I find the overlays on my property?
Create a planning property report through VicPlan using your address.
Can my council stop me building a granny flat?
If your block meets the statewide rules and no planning permit is needed, the key approval is the building permit. Overlays, local laws, consents and title restrictions may still apply.
Check your block with confidence
Granny flat council requirements in Melbourne are easier to work through when someone has looked at your site. Book your free site assessment or visit our display G-Flat™.