For Sydney-based strata managers, understanding the balcony regulations and rules in NSW is critical. After all, who is responsible for a balcony in a strata building?
In most NSW strata schemes, it is the owners corporation who is responsible for maintaining and repairing a balcony’s structural elements, because these are classified as common property under the Strata Schemes Management Act 2015 (NSW). This includes everything from the concrete slab itself to the waterproofing membrane and balustrade.
What isn’t covered? Lot owners are generally responsible for surface finishes that have been added over the top. This includes tiles, paint or decking.
However, the exact split of responsibilities can depend on the registered strata plan and respective by-laws, so it is important that you never make an assumption without checking the plan first.
In this guide to strata balcony rules NSW, we’ll help ensure that you as a strata manager, owners corporation or committee member know what you actually need to know.
Why Balcony Safety Matters for Sydney Strata Buildings
A significant number of apartment and strata buildings in Sydney were built between the 1960s and the early 2000s. This was well and truly before current waterproofing and balustrade standards existed.
Add on top of that decades of exposure to weather cycling and salt air in coastal and harbourside suburbs, and many waterproofing membranes that were never designed to last the life of the building experience accelerated deterioration.
The result?
- Membrane breakdown
- Water ingress into the slab
- Corrosion of the reinforcing steel
- Concrete spalling
- Inadequate resistance to structural loads.
This poses significant functional, safety and legal risk. Left unaddressed, it can expose an owners corporation to a defect claim, an insurance problem, or a direction from NSW Fair Trading to carry out repairs.
Common Property vs Lot Property: Who Pays for What
The starting point for balcony regulations NSW is determining whether the affected element is common property or lot property.
In some instances, this is obvious. But not always.
What is Common Property?
As a general rule in NSW strata schemes, the owners corporation is responsible for structural components such as the balcony slab, supporting beams, waterproofing membrane, and the balustrade or handrail itself.
Under Section 106 of the Strata Schemes Management Act 2015 (NSW), it is the owners corporation’s duty to maintain and repair common property.
What happens if they do not have sufficient capital works funds?
If the owners corporation’s funds are insufficient, the scheme must raise a special levy rather than defer necessary repairs. Simply put, budget constraints are not considered a valid reason to delay action once a common property defect has been identified.
What is Lot Property?
The lot owner is generally responsible for any surface finishes applied over the structure, such as tiles, timber decking, or paint. This is, of course, unless the strata plan says otherwise.
In instances where an owner’s own renovations or unauthorised works caused or contributed to the damage, responsibility for rectification can shift back to that owner.
What Are the Key Standards That Govern Balcony Rules in NSW?
Balcony safety and repairs sit at the intersection of the National Construction Code (NCC) and several Australian Standards, as well as state strata legislation.
Balustrade height and fall protection — the NCC
The National Construction Code sets the balustrade and barrier regulations that apply across the country, including in NSW.
These are the rules that most often come up when a strata committee is assessing whether an existing balustrade is compliant, or when a balustrade replacement or repair is being considered.
Structural loading — AS 1170
AS 1170 (Structural Design Actions) sets the minimum design loads a balcony slab and balustrade must be able to withstand.
This includes:
- Dead loads — permanent, stationary weight
- Live loads — temporary or moving weight
- Wind action — forces as a result of moving air
- Balustrade loads — resistance of the barrier to horizontal forces
Fixed platforms and access — AS 1657
AS 1657 (Fixed Platforms, Walkways, Stairways and Ladders) covers balconies that function as part of a building’s fixed access or egress path.
The standard outlines the requirements for:
- Platforms
- Handrails
- Safe accessibility
Waterproofing — AS 4654.2
AS 4654.2 is the standard that specifically covers balconies, decks and roofs — that is, waterproofing membranes in external, above-ground applications. It determines whether a balcony waterproofing repair actually stops water getting into the slab.
It covers both design and installation, including:
- Membrane placement
- Upturn heights at doors and walls
- Falls and drainage
- Movement control
Design and Building Practitioners Act
The Design and Building Practitioners Act 2020 (NSW) (DBPA) introduces a statutory duty of care for building work. Its registration and compliance-declaration regime centres on residential Class 2 buildings — multi-unit apartment buildings — including the Class 2 parts of mixed-use buildings, and it captures remedial and rectification work.
A point that catches many schemes out: where waterproofing works span multiple units in a building, the DBPA can apply even where those works are exempt development.
Where a Class 2 balcony repair involves waterproofing or structural work, it’s worth confirming with the BIM Remedial Sydney team how the DBPA’s duty of care, regulated design and documentation requirements apply to your building and repair needs.
What Are the NCC Requirements for Balcony Height Regulations in NSW?
Balcony height regulations are governed by the NCC and not an independent, separate state regulation:
- A balcony, deck or landing requires a balustrade or barrier wherever a person could fall one metre or more.
- The minimum balustrade height is 1000mm.
- Height is measured vertically from the finished floor level.
- Balustrade openings must not allow a 125mm sphere to pass through. (This is to prevent small children slipping through or climbing the barrier.)
- Balustrades must not include horizontal elements that could enable a climbing hazard.
- The barrier must meet the structural load requirements set out in AS 1170.1.
Do these balcony height regulations in NSW only apply to new buildings?
No. These provisions and regulations apply to older Sydney buildings as well as new builds.
So, when a balustrade is being replaced or a balcony is undergoing rectification work, the new work must generally meet the current version and requirements of the NCC. It does not matter whether the original balustrade was compliant or predated the rules.
If you are unsure whether an existing balustrade is compliant, BIM Remedial Sydney can inspect and document its condition, and coordinate with a registered design practitioner where an engineered solution is required.
How to Get the Strata Balcony Rules Right in Sydney
Balcony defects can involve a mix of structural, waterproofing and balustrade issues.
So, for legal and safety peace of mind, a proper repair starts with a thorough onsite investigation — and, where the work is regulated under the DBPA, a remediation design prepared by a registered design practitioner.
Here at BIM Remedial Sydney, we work directly with owners corporations and strata managers across Sydney to investigate and document balcony defects. The remediation design is prepared by a registered design practitioner, and BIM — as a registered building practitioner — carries out the balcony upgrades and repairs to the declared design.
Do you need to work with your Strata Managing Agent?
Strata managing agents play an important role in getting defective balconies repaired, from coordinating quotes to keeping owners informed. If you manage a scheme with an outstanding balcony issue, our guide to strata services for agents covers what agents are typically responsible for procuring, and how to keep a defect claim or rectification project moving without exposing the scheme to unnecessary risk.
Contact BIM Remedial Sydney today
If your owners corporation or strata scheme has a balcony that needs a proper assessment but you are still not sure where to begin, that’s okay. BIM Remedial Sydney is a licensed remedial building contractor (NSW Builder Licence 198846C), a registered building practitioner under the DBPA, an ACRA member, a Master Builders Association member since 2015, and ISO certified. Get in touch with us for a site assessment and let our team do the work for you.
Balcony Rules and Regulations: Frequently Asked Questions
Who is responsible for balcony repairs in a strata building in NSW?
As a general rule, the owners corporation is responsible for structural components classified as common property.
Lot owners — the owners of each apartment — are typically responsible for surface finishes they’ve applied.
Note that this is all subject to the strata plan, which should be checked in case it states otherwise.
What is the minimum balcony balustrade height in NSW?
The minimum balustrade height is 1000mm from the finished floor level. Openings must also prevent a 125mm sphere from passing through.
This applies wherever there is a fall risk of one metre or more.
Does the Design and Building Practitioners Act apply to balcony repairs?
The DBPA’s registration and compliance-declaration regime applies to residential Class 2 buildings — multi-unit apartment buildings — including the Class 2 parts of mixed-use buildings, and it captures remedial and rectification work.
Make sure you check with your remedial contractor how the DBPA’s duty of care and documentation requirements apply to your specific building and scope of works.
Can a lot owner change or enclose their balcony without approval?
Not usually. This is because the balustrade, slab and waterproofing are all considered common property. Proposed changes may require owners corporation approval, or in some cases a special resolution by-law.
What happens if the owners corporation refuses to repair a balcony?
Owners corporations cannot refuse to repair a balcony, even when there is a lack of funds. In such instances, we recommend owners escalate the issue through NSW Fair Trading mediation and, if needed, an application to the NSW Civil and Administrative Tribunal.
How often should balconies in a strata building be inspected?
Periodic visual checks should be carried out, but there is no single requirement for inspections at specified intervals. Buildings close to the coast or a harbour are subject to more salt exposure and should be checked more frequently.
If you notice any cracking, spalling, or deterioration of waterproofing or balustrade fixings, have it investigated as soon as possible. The earlier an issue is investigated and documented, the less likely it is to have become structural.
