The average Australian block lost 13% of its size between 2012 and 2021 (ABS data), and if you've walked through any new housing estate lately, you already know the trend hasn't reversed. But a smaller yard doesn't mean a pool is off the table. It just changes which pool makes sense. The wrong one will dominate your outdoor area. The right one will make you wonder why you didn't do it sooner.
But "small pool" covers a lot of ground. Fibreglass shells, precast concrete, custom concrete, above-ground, in-ground, round, rectangular. The options are genuinely different in terms of what they cost, how long they last, and how they'll look in your space.
Here's how to work out what's right for your backyard.
Before you start browsing pool designs, measure what you're working with and then subtract from it. You'll need to allow for council setback requirements (typically at least 1m from boundary fences), compliant pool fencing, an equipment pad (roughly 1m x 2m), and room to actually walk around the pool.
A backyard that measures 6m x 8m might feel generous, but once you account for setbacks, fencing, and a small patio or deck, the usable pool zone can shrink to 3m x 5m or less.
That's still plenty of room for a small pool. You just need to pick one that fits the space rather than fighting it.
Plunge pools are the most popular small pool category in Australia right now, and for good reason. They're typically between 2m and 6m in length, around 1.2m to 1.5m deep, and designed for cooling off, relaxing, low-impact exercise, and entertaining rather than swimming laps.
They come in concrete (both custom-poured and precast), fibreglass, and steel. Our precast concrete plunge pools are manufactured in a factory and craned into place, which means faster installation and less disruption to your property. Fibreglass plunge pools are lighter and can sometimes be easier to manoeuvre into tight access sites.
If relaxation is the priority over swimming, a spa pool or swim spa might be a better fit. These are typically smaller than a plunge pool (under 3m), heated, and fitted with hydrotherapy jets. They're great for year-round use, especially in cooler climates like Melbourne or Hobart. The trade-off is that they don't give you the same cooling-off experience in summer as a full plunge pool.
If your backyard is long and narrow (common in terrace houses and inner-city blocks), a slim rectangular pool can run along one side of the property. These aren't true lap pools in the competitive sense, but at 5m to 6m long and under 2.5m wide, they give you enough length for a decent swim, while leaving room alongside for a garden bed or pathway.
Not every block suits digging a hole. Sloping sites, rocky ground, or limited excavation access can all make an in-ground installation difficult or expensive. Above-ground and semi-recessed small pools solve that problem. Clad in timber, stone, or tile, a raised pool can become a design feature rather than a compromise. They also eliminate the need for temporary fencing during construction, since there's no open excavation on site.
The three main options in Australia are concrete (including precast), fibreglass, and steel.
Concrete is the most durable (50+ year lifespan) and offers the most flexibility in finish and installation type. Precast concrete pools are factory-built to consistent quality standards and arrive ready to install. Custom concrete gives you total design freedom but costs more and takes longer.
Fibreglass is lighter, installs quickly, and requires less ongoing maintenance. The range of shapes and sizes is limited to what the manufacturer moulds, but for small pools, there are plenty of options. Fibreglass pools are a strong mid-range choice, particularly if crane access is a concern.
Steel (tank-style pools) are the most affordable entry point. They're quick to install but have a shorter lifespan and fewer customisation options than concrete or fibreglass.
Think about how the pool will sit in your yard. In-ground creates the most seamless look and works well on flat, accessible sites. Semi-recessed pools are a good middle ground, especially on sloped blocks. Above-ground installations are the most flexible and can save on excavation costs.
Precast and fibreglass pools can be installed in any of these configurations. Custom concrete is almost always in-ground.
In a small backyard, the shape of your pool matters more than in a large one because every centimetre counts. Rectangular pools are the most space-efficient and sit neatly against fences and boundaries. Round pools soften the look of a courtyard and fit into corner spaces where a rectangle would feel cramped. Freeform shapes are possible with custom concrete or certain fibreglass moulds, but tend to waste space in tight yards.
The area around the pool is just as important as the pool itself. In a small backyard, you want to keep the surroundings proportional. A narrow timber deck on one or two sides, rather than a full wraparound, can give you seating and access without eating into the remaining yard.
Consider how your pool fencing will work with the space, too. Frameless glass fencing keeps the area feeling open, while aluminium fencing is more affordable but can make a small yard feel more enclosed.
Here's a quick reference for Plungie's range, which covers most small backyard scenarios:
|
Model |
Size |
Best for |
|
2.2m x 2.2m |
Cold plunge, wellness, courtyards |
|
|
3.5m round |
Architectural homes, tight corners |
|
|
3.6m x 2.2m |
Side yards, front courtyards, narrow spaces |
|
|
4.6m x 2.5m |
Most suburban backyards, families |
|
|
6m x 3m |
Larger small backyards, entertaining |
It varies by material and size. As a rough range: fibreglass small pools start from around $15,000 to $30,000 installed, precast concrete pools range from around $20,000 to $40,000 for the shell (with total project costs of $35,000 to $70,000 including fencing, equipment, and surrounds), and custom concrete starts higher again. Steel tank pools are the most affordable option, starting under $15,000.
Yes, across the board. Less water means lower costs for chemicals, heating, and filtration. A small plunge pool typically costs $500 to $1,200 per year in chemicals and $800 to $2,000 in electricity, compared to double or more for a full-size swimming pool.
According to HouseLogic, a pool can increase property value by up to 7%. "Swimming pool" has also consistently been the number one search term on realestate.com.au and Domain, so having a pool (even a small one) can broaden your buyer base when it comes time to sell.
The smallest residential pools in Australia start at around 2m x 2m. Plungie's Quad (2.2m x 2.2m) is one of the smallest precast concrete options available and is designed for cold plunge, wellness use, or as a compact spa alternative.
Yes. In most states and territories, any pool or spa with a depth of 300mm or more requires a building permit and compliant safety fencing. The size of the pool doesn't change the compliance requirements. Precast pool suppliers like Plungie provide pre-engineered specifications to make the approval process simpler.
Both work well. Fibreglass is lighter, faster to install, and has lower maintenance. Concrete (including precast) is more durable, offers more flexibility in installation type (in-ground, above-ground, semi-recessed), and typically lasts longer. Your choice will depend on budget, site access, and how long you plan to stay in the home.
Fibreglass pools typically take 1 to 3 weeks from delivery to swim-ready. Precast concrete pools can be craned into place in a single day, with the full project (plumbing, backfill, equipment, and surrounds) usually completed in around two weeks. Custom concrete pools take 8 to 16 weeks regardless of size.
Yes. Both fibreglass and precast concrete small pools can be installed above ground or semi-recessed. Above-ground installations are ideal for sloped blocks, rocky ground, or properties with limited excavation access. Clad in timber, stone, or tile, they become a design feature rather than a limitation.
Not sure which size or style fits your yard? Browse our Plungie Project Gallery to see how other Aussie home owners have made the most of their small backyards, or compare all five pool models side by side.
The James Hardie Modern Homes Forecast 2026 has arrived - the third annual research report designed to inspire homeowners and trade professionals alike with insights into the latest trends shaping modern home design.
At Plungie, we know great outdoor spaces start with great inspiration. That’s why we’re proud to partner with James Hardie to help our customers explore emerging design trends and bring contemporary backyard visions to life.
From modern materials and finishes to seamless indoor-outdoor living, we’re excited to see how these trends influence the next generation of home and backyard transformations.