A common question for apartment owners, commercial property owners, and property managers is how common property works within an owners corporation and who is responsible for maintaining and repairing shared areas.
The question often only arises when the matter of who should pay for the repairs and maintenance comes up. We are often contacted by residential and commercial property managers when it comes to whether it is their landlord’s responsibility to pay for fixing something, or whether the owners corporation should pay.
Key Takeaways:
- Common property refers to areas shared by all lot owners within an owners corporation. It typically includes driveways, foyers, stairwells, gardens, roofing, and external walls.
- The exact boundaries of common property are defined by the plan of subdivision.
- Maintenance and repair responsibilities for these areas fall to the owners corporation.
- Understanding what’s common vs private property is essential for managing costs and resolving disputes.
How common property is defined under Victorian law
Common property in the state of Victoria refers to shared areas within an owners corporation that are owned by lot owners collectively. These shared spaces can include gardens, facilities, hallways and driveways within the strata area. To help foster an ideal living environment and it helps to first understand how owners corporations and common property operate. It is always important to:
- Uphold Maintenance Responsibility – Be accountable for the maintenance and repair of the common property.
- Exclusive Use Areas – Respecting designated areas for exclusive uses which are granted to owners eg: Storage units or car parking.
- Usage Restrictions – To the main comfort of all residents in the common property area certain restrictions can be applied such as designated smoking areas and noise restrictions.
- Decision Making – Matters concerning the shared area that includes property alterations may require the approval of the owners corporation of the common property. Which requires a voting process or general meetings. Normally this can organise through our strata consulting services or better yet help to review your current owners corporation management arrangements.
Generally speaking, the below items are common property of the owners corporation. So, for those going through this process for the first time, let’s break down how common property works and five key factors to consider.

1. How does the plan of subdivision define common property boundaries?
Common property on plans of subdivisions is usually defined by thick continuous lines. The location of boundaries (the point of delineation) is usually interior with structural columns and walls being considered common property.
In Davies v Owners Corporation 1 PS414649K [2019] VCAT 1159, Senior Member Kirton ruled that common property need not be building structures that are load-bearing. Aluminium framed glazed panels with sliding doors (to balconies) were deemed to be common property.
Referencing the plan of subdivision for your owners corporation will define what is common property and private property and the methodology for defining where the boundary lie (i.e. interior face, median, exterior face, or other location).
2. Are balconies common property or private property in Victoria?
Typically, when it comes to apartment buildings the cement sheeting and joists in conjunction form part of the structure of the building and are considered to be common property.
Whereas decking, screed, non-originally installed tiles and waterproofing membrane will often form of the lot (i.e. private property).
3. Are shared services and utilities common property?
Shared services and utilities such as sewer, water (including water for fire services), electricity, gas, drainage, and NBN will belong and be covered by the owners corporation.
Generally, these services and utilities are fed into the building from one main from the road/utility provider and therefore within the plan of subdivision, these will be considered in the definition of what is common property. Furthermore, within the building and plan of subdivision pipes and electrical wiring servicing more than one lot will often be considered common property.
We had a client which was an owners corporation made up of townhouses with shared walls. The building had 2 separate rows of gutters that extended and connected all the townhouses, with the gutters being defined as private property per the plan of subdivision. It was ultimately decided and agreed that the owners corporation would take responsibility by organising and paying for the cleaning of the gutters as a service to the lot owners. This is by far a lot more cost effective and logistically more effective.
4.Can owners corporation rules change who is responsible for common property?
Another important thing to note is that what is private (lot owner responsibility) and what is common property (owners corporation responsibility) can sometimes be dedicated by the particular building, new body corporate management process, plan of subdivision, and owners corporation in question.
The plan of subdivision is the source document that defines the owners corporation and the lots within it – and can often influence what is common vs private property. Another area to consider is that the owners corporation may have made a decision (by way of a special resolution) to mandate that common property (i.e. windows) will be the responsibility of the lot owners (or vice versa).
5. Where can you find official Victorian resources on common property boundaries?
Below are some further resources on this topic that might help decide what is common property and owners corporation vs what is private property:
- Subdivision (Registrar’s Requirements) Regulations 2011 – Reg 10
- Maintaining And Improving Common Property In An Owners Corporation
- Common Property Boundaries And The Water Act – Who Is Liable For Unreasonable Flows Of Water Into An Apartment?
How does poor owners corporation management affect common property maintenance?
An Owners Corporation manager is responsible for more than organising repairs. They also oversee the financial side of your building, including levies, budgets, maintenance funds and payments. If this is not done properly, owners can end up facing unnecessary costs, delays or financial risks.
If you are concerned about how your building’s money is being managed, or if you feel your OC manager is not providing the level of service your Committee expects, it may be the right time to review your management.
Strata Management Consultants helps Committees move to reliable OC managers who are transparent, organised and accountable with both maintenance and money.
Speak with us on 03 9007 2618 or contact us here to discuss how we can help your building improve its management.
