Split System Installation in Strata or a Condo: Sydney Approval Process Step-by-Step
Split System Air Conditioning Installation in a Sydney strata apartment will usually require approval before work starts, because NSW guidance treats installing or replacing a reverse-cycle air conditioner as a minor renovation and many installations also affect walls, balconies, pipework, drainage or other common property.
The safest approach is simple: check your strata by-laws first, plan the indoor and outdoor unit locations, prepare drawings and contractor details, submit the proposal, obtain written approval, and only then book the installation.
This distinction matters for strata air conditioning installation. The air conditioner itself is often the easy part. The difficult questions are usually where the outdoor condenser will sit, where the refrigerant pipes will travel, how condensate water will drain and whether the installation changes common property.
For broader system-selection information, read KYNEX’s 2026 Air Conditioning Sydney guide.
Does Split System Air Conditioning Installation Need Strata Approval in NSW?
Usually, yes.
The NSW Government’s current strata renovation guidance specifically includes installing or replacing a reverse-cycle air conditioner in its examples of minor renovations.
Minor renovations need approval. Current NSW guidance says the owner should provide plans showing the work, proposed dates and times, and the qualifications and details of the tradespeople involved.
A standard split system may remain a minor renovation when the work fits within that category and the scheme’s by-laws. But NSW guidance says minor renovations cannot change the outside or structure of the property or require waterproofing.
That is why apartment aircon approval in NSW depends on the proposed installation, not only on the appliance.
Step-by-Step Strata Approval Process for Split System Installation
Check the strata plan and by-laws
Start with your building’s registered by-laws. Search for terms such as air conditioning, renovations, balconies, common property, external appearance, noise and working hours.
Two Sydney apartment buildings next door to each other can have different air conditioning strata rules.
Identify what is lot property and what is common property
Do not guess. External walls, façades and other building elements may be common property depending on the strata plan.
If the proposal includes drilling through common property, mounting equipment to a shared wall or permanently using common property for pipework, the owners corporation may require a more formal approval arrangement.
Get a site-specific installation plan
Before buying the system, decide where the indoor unit, outdoor condenser, refrigerant pipes, electrical cables and condensate drain will go.
A good plan should make the strata committee’s decision easier, not leave unanswered questions for installation day.
Prepare your strata application
Include enough information for the committee or owners corporation to understand exactly what will change. Avoid submitting only a product brochure and a one-line request.
Submit it to the strata manager or owners corporation
Your strata manager can explain the building’s process and whether your scheme has delegated minor-renovation approval to the strata committee.
Under NSW’s current guidance, if the strata committee is permitted under a by-law to consider minor renovations and refuses the request, it must give written reasons within three months. If it does not refuse within that period, the application is taken to be approved by the committee.
Get the approval in writing
Do not rely on “the building manager said it should be fine.” Keep the written decision and any conditions attached to it.
Conditions may deal with installation hours, access, protection of lifts or corridors, condenser location, drainage, noise, insurance or responsibility for future maintenance.
Install exactly what was approved
If strata approves a floor-mounted condenser on one side of the balcony, do not decide on installation day to mount it to another wall.
A material change in the proposed work may need fresh approval.
What Should Be in a Strata Air Conditioning Application?
| Document | Why strata may want it |
|---|---|
| Installation drawing | Shows indoor unit, condenser, pipework and drainage route. |
| Scope of work | Explains drilling, mounting and electrical work. |
| Proposed work date/time | Helps enforce strata work-hour rules. |
| Tradesperson details | Identifies who will perform the work. |
| Licence information | Helps confirm appropriate technical qualifications. |
| Insurance information | Some schemes request contractor insurance documents. |
| Outdoor unit details | Helps assess size, placement and noise concerns. |
| Drainage plan | Shows where condensate water will go. |
What If the Installation Touches Common Property?
This is where a simple split system installation apartment job can become more complicated.
NSW Government guidance says renovations affecting common property may require changes to the scheme’s by-laws. The exact requirement depends on what is being changed and the existing by-laws.
Examples that deserve close attention include:
- core drilling through an external wall;
- mounting brackets fixed to common property;
- pipework running over a shared façade;
- equipment occupying common property;
- penetrating waterproofed surfaces;
- altering the external appearance of the building.
This is why the phrase common property approval is important. Approval is not merely about owning the air conditioner. It is about permission to alter or use parts of the building that may belong to the owners corporation.
Can the Outdoor Air Conditioner Be Installed on a Strata Balcony?
Potentially, yes.
NSW Planning’s 2026 guidance states that the exempt-development standards allow an air-conditioning unit to be installed on the floor of an apartment balcony, but it also specifically warns that strata by-laws may restrict where and how units can be installed.
So planning permission and strata permission are separate questions.
- whether the balcony area is part of the lot;
- visibility from the street or building exterior;
- airflow around the condenser;
- service access;
- noise reaching neighbouring bedrooms;
- vibration through the slab;
- condensate drainage; and
- the building’s specific condenser mounting restrictions.
You can also read KYNEX’s guide to the best place to install a split-system air conditioner.
Why Are Noise and Vibration Important in Sydney Strata?
A condenser that seems quiet during a daytime inspection may become much more noticeable in a quiet apartment building at night.
NSW EPA guidance recommends locating air conditioners away from neighbours’ bedroom and living-room windows or using acoustic shielding where appropriate.
For strata, also think about vibration. A condenser connected rigidly to building elements may transmit vibration even when its airborne noise does not seem excessive.
Depending on the installation, vibration isolation mounts, sensible placement and adequate clearance can help reduce complaints.
Where Should Split-System Condensate Drain in an Apartment?
Cooling removes moisture from indoor air. That water has to go somewhere.
A sound strata application therefore explains the condensate drain installation before work begins. Letting water simply run across a balcony, over an edge or down a shared wall may create staining, slip, waterproofing or neighbour problems.
KYNEX has a separate guide explaining air conditioning condensate drainage in Sydney strata apartments.
Do You Need a Licensed Air Conditioning Installer?
Yes, where regulated refrigerant handling is involved, the person performing that work needs the appropriate refrigerant handling licence.
The Australian Refrigeration Council lists both full refrigeration and air-conditioning licences and a restricted heat-pump split-system installation and decommissioning licence.
Electrical work must also be handled according to the applicable NSW licensing requirements.
Learn more about KYNEX’s Split System Air Conditioning Installation service in Sydney.
Can I Install Aircon Without Strata Approval?
If the work falls within a category that requires approval, installing it first and asking later is risky.
NSW Government guidance warns that when required permission is not obtained, the owner may have to pay to return the property to its previous condition.
That could turn a technically successful installation into an expensive strata dispute.
It is therefore safer to treat the approval process as part of your air conditioning installation rather than an optional piece of paperwork.
Can Strata Refuse Air Conditioning?
It depends on the proposal and the approval pathway.
For a minor renovation considered by an authorised strata committee, NSW’s current rules require written reasons if the committee refuses the application within the relevant three-month period.
A proposal is more likely to raise concern when it leaves major questions unanswered, such as:
- Where will condensation go?
- Will drilling affect common property?
- Will the condenser change the façade?
- Could noise disturb another apartment?
- Who repairs the affected common property later?
- Are the trades properly qualified?
Rather than arguing that “everyone has an air conditioner,” submit a proposal that solves these issues before the committee has to ask.
What Affects Split System Air Conditioning Installation Cost in Strata?
There is no useful single price for every Sydney strata apartment, and this guide deliberately does not provide a fixed amount.
The installation scope can change because of:
Ground-floor access is different from high-rise access.
Long or concealed pipe routes can require more work.
The existing supply must be suitable for the selected system.
An approved drainage point may be difficult to reach.
Concrete and complex wall penetrations can change the scope.
Building access, protection and paperwork may add steps.
If you are researching Split System Air Conditioning Installation Cost, read KYNEX’s guide to single split-system installation cost in Sydney, then request a property-specific quote rather than relying on an online average.
How Can KYNEX Air Conditioning & Trades Help With a Strata Installation?
A strata installation works best when the installer thinks about approval before turning up with tools.
KYNEX Air Conditioning & Trades provides split-system installation across Sydney and can assess the practical parts of the proposal, including:
- indoor and outdoor unit positioning;
- refrigerant pipe routing;
- wall penetrations;
- condensate drainage;
- electrical requirements;
- noise and vibration considerations;
- access constraints; and
- the information needed to describe the proposed installation to strata.
KYNEX’s published information states that its team collectively has more than 10 years of industry experience and has installed or serviced more than 2,000 residential and commercial systems.
Suite 206 Level 2/71 Belmore Rd, Randwick NSW 2031
Phone: 0484 59 59 59
Interactive Strata Aircon Approval Checklist
Tick each item as you prepare your air conditioning installation request.
0 of 10 completed
A Realistic Sydney Strata Example
Consider a two-bedroom apartment where the owner wants a wall-mounted indoor unit in the living room and a floor-mounted condenser on the balcony.
The installer finds that the refrigerant pipes must pass through an exterior wall and the condensate needs to reach an approved drainage point.
The sensible order is not “buy the air conditioner, then ask strata.” It is:
- check the building’s air conditioning by-law;
- confirm the balcony and wall boundaries;
- prepare the proposed condenser, pipe and drain locations;
- provide installer details;
- submit the renovation request;
- meet any approval conditions; and
- book the installation after written approval.
This is an illustrative scenario, not a fabricated customer testimonial or claimed KYNEX case study.
Split System vs Ducted AC Installation in Strata
For many apartments, a split system can be easier to accommodate than a ducted AC installation because ducted air conditioning typically needs ceiling space, ducts, outlets, return-air components and more extensive building access.
That does not mean split systems are automatically simple. A high-rise split system installation can become complex where there is no suitable balcony location, access is difficult or pipes must travel through common property.
The right solution depends on the building rather than the keyword someone searched.
Frequently Asked Questions
Do I need strata approval to install a split system in Sydney?
Usually. NSW Government guidance lists installing or replacing a reverse-cycle air conditioner as a minor renovation, and minor renovations require approval. Your building’s by-laws and the exact work proposed still determine the final pathway.
Can a strata committee approve an air conditioner?
A strata committee may consider minor renovation applications when a by-law allows it to do so. Otherwise the owners corporation approval process applies.
Can strata refuse an air conditioner application?
An application can be refused depending on the proposed work and relevant rules. For a minor renovation handled by an authorised strata committee, current NSW guidance requires written reasons for refusal within three months.
Can I put the condenser on my apartment balcony?
NSW Planning states that air-conditioning equipment can be installed on the floor of an apartment balcony under the exempt-development standards, provided the relevant criteria are met. Strata by-laws may still restrict its location or installation.
Do I need neighbour approval?
Formal neighbour approval is not automatically the same thing as strata approval. NSW Planning says there is no formal neighbour-notification requirement for exempt development, although notifying neighbours can be sensible. Your strata scheme may have its own process.
Does replacing an existing split system need approval?
Do not assume a replacement is automatically exempt from strata approval. NSW guidance specifically refers to installing or replacing reverse-cycle air conditioning as a minor renovation. Check whether the new work changes the approved location, penetrations, drainage or condenser arrangement.
What happens if the installation changes the external appearance?
That can move the project beyond a straightforward minor-renovation pathway. NSW guidance says minor renovations cannot change the outside or structure of the property.
Can I get an exact installation cost online?
An online figure cannot account for your apartment’s access, pipe route, electrical work, drainage, wall construction or strata conditions. Contact KYNEX on 0484 59 59 59 for a property-specific assessment.
Related Sydney Air Conditioning Guides
Final Verdict
The safest way to install a split system in a Sydney strata apartment is approval first, installation second.
Check the by-laws, establish what is common property, show the proposed unit locations, explain wall penetrations and drainage, provide contractor details and obtain the correct written approval before work begins.
For many apartments, the actual air conditioner is not the difficult part. The quality of the plan determines whether the project moves smoothly through strata.
If you want help planning a Split System Air Conditioning Installation in Sydney, contact:
KYNEX Air Conditioning & Trades
Suite 206 Level 2/71 Belmore Rd, Randwick NSW 2031
0484 59 59 59