Building a patio sounds simple; it’s just a bit of shade and shelter, right? But once you start getting quotes, the numbers can vary massively. What starts as a straightforward upgrade can quickly get expensive if you’re not across all the elements that affect cost.
At Phoenix Patios, we’ve been building patios for over 40 years, and we’ve seen it all. Here’s what really influences patio costs in Perth – from base pricing to the sneaky extras most people don’t factor in.
If you are thinking of building a granny flat on your property, it’s best that you contact a professional granny flat builder who is experienced in building a second home on an existing property. This is because they will understand all the rules, regulations and council requirements pertinent to a second dwelling and will know exactly how to proceed with your build.
Know Your Space
Sure, square metres matter. But the cost of a patio in Perth doesn’t just depend on how big it is, it’s how complex the build is.
A 20m² flat patio on a flat block will cost significantly less than a pitched roof patio that needs drainage, insulation or council workarounds. It’s also about where the patio will go. Is it freestanding? Attached to your home? Does it need extra engineering? Each choice affects both design and price.
If you haven’t already, read up on our guide to patio design in Perth, a great starting point for exploring what fits your space, and your lifestyle.
What Are You Already Working With?
If you’re removing or replacing, you’ll need to remove the old patio, but you’ll also save costs and time. Not all patio installers in Perth include demolition or disposal in their quote, so make sure you ask. At Phoenix Patios, we handle the full process – removing your tired old patio (without leaving a mess behind). Also, if you’re replacing an old patio, like for like, we can bypass the council approval.
Some sites will also need levelling or excavation. If your backyard is sloped or has tricky access, labour and time costs will increase.
Materials & Design
Timber vs steel. Colorbond vs polycarbonate. Insulated vs single-skin roofing. Your choice of patio materials will impact both upfront and long-term Perth patio costs.
Steel frames with Colorbond roofing are durable, low maintenance, and great for Perth’s climate, but are typically more expensive than timber in the short term. Insulated roof panels will also cost more to install, but they’ll make your patio comfortable all year long. But while these options can hurt your wallet upfront, cheaper materials could end up costing you more in the long term – especially for the future value a new patio can bring to your home.
Gable Roof Patios
A higher pitch, better airflow, and a more classic finish. A gable patio in Perth does come with a bigger price tag, but you’re getting better ventilation, more light, and a more spacious feel.
This option does come with more materials and a more complex installation, so budget accordingly.
Flat Roof Patios
For a clean, modern look and a more cost-effective option, a flat roof patio in Perth is a smart choice. On average, you’ll see lower costs for installation, materials, and approvals. By jacking up the patio above the gutter line, we can add extra lighting and a more spacious feel.
Insulated vs Sheet Metal Roofing
Insulated patio roofs cost more but offer year-round comfort—keeping heat out in summer and warmth in during winter. They’re also quieter in heavy rain. Sheet metal (single-skin) is cheaper and still tough, but less effective at temperature control and noise reduction. Great for shaded areas or tight budgets.
Skylight Panels
Skylight panels let natural light in without losing shade. They brighten your space and reduce the need for daytime lighting. We often suggest a mix of solid roof and skylight sections for a well-balanced patio design.
Local Council Approval
In Perth, most patios will need some council approval – especially if they’re on the larger side, close to a boundary, or don’t meet standard setback rules. Generally, you’ll need to apply for planning approval first (if your patio isn’t exempt), followed by a building permit. This process involves submitting plans, paying permit fees, and sometimes covering additional costs like verge bonds or levies.
Smaller patios that meet certain size and location criteria might skip the planning step – but a building permit is still often required, especially if the patio is attached to the home or exceeds height limits. Since requirements vary across councils, it’s always best to check in with your local authority (or let Phoenix Patios do the legwork for you) before starting.
Added Extras
It’s easy to overlook the ‘nice to haves’ that drive up your total cost. Here are a few extras that can drive up the final cost of your Perth patio:
- Lighting
- Ceiling fans
- Gutter upgrades or downpipes
- Built-in seating or storage
- Decking or concrete slab work
- Privacy screens
- Weather protection
They’re all worth it – just make sure your budget has wiggle room if they’re part of your vision.
What Should You Budget?
It’s tough to give one number, but here’s the general ballpark:
- Perth flat roof patio cost: From $250 to $400 per m².
- Perth gable roof patio cost: From $350 to $600+ per m².
- Extras and finishes: Can add $2,000–$10,000, depending on your setup.
Every build is different, so a site visit and custom quote is always the best first step. Please contact us for a free quotation.
Building Smart & Adding Value
A professionally built patio is all about lifestyle. It gives you a place to entertain, relax and enjoy your home – and if you ever plan to sell, it could bump up your listing price. Just make sure you’re building a patio you’ll actually use, not just something that looks good in a brochure.
The best way to avoid hidden costs? By working with a team that’s upfront, experienced, and clear about what’s included.
At Phoenix Patios, we take the guesswork out of quoting, and we’re always happy to chat about your home, budget and what would look best for your home.