This is one of the biggest townhouse vs apartment differences. Most apartment buildings don't have courtyards at all. In townhouse schemes, courtyards are everywhere โ and they're usually lot property, meaning the owner looks after them. But that doesn't always cover everything inside the courtyard: the structural slab underneath, the boundary walls and the waterproofing layer can still be common property.
What we're talking about
A courtyard in a townhouse scheme can include:
- Paving, pavers or tiles on the ground
- Grass or garden beds within the area
- Plants and shrubs inside the courtyard
- Fences or walls bounding the courtyard
- Pergolas, awnings or shade structures
- The slab or ground underneath
- The waterproofing membrane (if it's a raised courtyard over a slab)
Typical position
In most townhouse strata schemes, the courtyard is shown on the strata plan as part of the lot. That means the owner is responsible for what's inside the courtyard. But the structural elements that form or support it โ the slab beneath, the walls around it, and the waterproofing layer โ usually stay common property.
Usually owner
- Paving, pavers and tiles you can see
- Lawn and garden beds within the courtyard
- Plants, shrubs and small trees in the courtyard
- Pots, furniture, BBQs, washing lines
- Day-to-day cleaning and tidiness
- Any structures you've installed (with approval)
Usually OC
- Structural slab beneath the courtyard
- External walls bounding the courtyard
- Waterproofing membrane (if raised over a slab)
- Common dividing walls or fences (sometimes)
- Trees on common property next to a courtyard
Often grey
- Fences between courtyards
- Pergolas added by previous owners (without by-law)
- Cracking paving over a failing membrane
- Trees that were planted by an owner but now overhang
- "Exclusive use" courtyards over common property
โ Townhouse schemes are very different here
This is one of the clearest differences between townhouses and apartments. In apartment buildings, balconies are usually common property and the owners corporation looks after the structure (the lot owner uses the space, but they don't own it).
In townhouse schemes, courtyards are usually part of the lot โ like having a backyard. The owner mows the grass, replaces the paving, plants the garden, and pays for it. But the building structure underneath and around it usually stays common property, so big repairs to the slab, walls or membrane still go through the owners corporation.
The strata plan is the threshold document. It will show whether your courtyard is part of the lot, "exclusive use" common property, or something else.
Grey areas and common disputes
"Exclusive use" courtyards
Some townhouse schemes don't include the courtyard inside the lot โ instead, the courtyard is common property but the lot owner has exclusive use of it under a registered by-law. This sounds like the same thing, but it isn't. With exclusive use:
- The OC technically owns the courtyard
- The lot owner gets sole use, but the by-law usually says they also have to maintain it
- Improvements may need OC approval that wouldn't be needed if it were part of the lot
- If the by-law was lost or never properly registered, the position can get messy
If your courtyard is exclusive use rather than lot property, ask the strata manager for a copy of the by-law so you know exactly what you can and can't do.
Pergolas, awnings and shade structures
Anything you build in your courtyard that's attached to the building, taller than a low fence, or visible from outside usually needs:
- Owners corporation approval (because the structure may attach to common property)
- Council approval (in many cases)
- A common property rights by-law (if it touches or modifies common property)
If a previous owner built a pergola without paperwork, you may have inherited a problem. The OC could require you to maintain it indefinitely, or in some cases remove it. Get the position clarified before you buy or before you start a project.
Cracking paving โ is it the membrane?
Your courtyard pavers crack or lift. The first instinct is to re-lay them at your cost. But if the cause is a failing waterproofing membrane underneath, that's common property and the OC's responsibility. The honest test:
- Is there water staining or damp coming into the building below or beside the courtyard?
- Have multiple owners had the same issue?
- Is the cracking lined up with where a slab joint or membrane fold would be?
Don't lift pavers without sorting responsibility first. If the membrane has failed and you've replaced the pavers, you'll do the same job twice.
Trees and large shrubs
Trees you planted in your courtyard are yours โ and so are the problems they cause (roots in next door's pipes, branches over a fence, leaves in the neighbour's gutter). For more on trees specifically, see Gardens & trees.
Why the strata plan is the answer
NSW strata schemes are defined by their registered plan, not by what an owner assumes. Two townhouse schemes built on the same street in the same year can have completely different courtyard arrangements โ one might show courtyards as lot property, the other as exclusive-use common property.
The strata manager can send you a copy of the plan. If it's hard to read, ask them to mark up where lot ends and common property begins. This one document settles 80% of courtyard disputes.
Sources
Strata Schemes Management Act 2015 (NSW), s4 (definition of common property), s106 (strict duty to repair and maintain common property), s108 (changes to common property need approval), s142 (common property rights by-laws for exclusive use).
Seiwa Pty Ltd v The Owners โ Strata Plan No 35042 [2006] NSWSC 1157 โ strict duty principle applies to courtyard structural elements (slab, walls, membrane).
Cooper v The Owners โ Strata Plan No 58068 [2020] NSWCA 250 โ by-laws cannot be harsh, unconscionable or oppressive (applies to courtyard use restrictions).
NSW Fair Trading โ Strata living and dispute resolution guidance.