Illawong is a leafy, established suburb in Sydney's Sutherland Shire, sitting along the Georges River and offering a relaxed lifestyle just 30 kilometres south of the CBD. It's a popular choice for families, and the housing stock reflects that — generous free-standing homes on comfortable blocks, many built or renovated in the past two decades. If you own a four-bedroom home here, understanding what you should be paying for building insurance is a smart financial move. This article breaks down a real quote of $3,428 per year for a 4-bedroom, 3-bathroom free-standing home in Illawong, and puts it in context against local, state, and national benchmarks.
---
Is This Quote Fair?
The short answer: yes, broadly speaking. This quote has been rated Fair (Around Average), which means it sits comfortably within the typical range for the area — not a bargain, but not overpriced either.
At $3,428 per year (or roughly $329 per month), the premium falls below the suburb average of $3,723 and beneath the suburb median of $3,579. That's a meaningful saving compared to what many Illawong homeowners are paying. It also sits well within the interquartile range for the suburb — between the 25th percentile of $2,768 and the 75th percentile of $4,313 — which tells us this is a genuinely representative price for this type of property.
In other words, while there may be cheaper options on the market, this quote is not one to dismiss out of hand. The "Fair" rating reflects a premium that aligns with market expectations for a well-built, above-average home in this part of Sydney.
---
How Illawong Compares
To properly evaluate any insurance quote, you need to look beyond the suburb and zoom out to the broader picture. Here's how Illawong stacks up:
| Benchmark | Average Premium | Median Premium |
|---|---|---|
| Illawong (NSW 2234) | $3,723/yr | $3,579/yr |
| NSW (State) | $9,528/yr | $3,770/yr |
| National | $5,347/yr | $2,764/yr |
| Sutherland LGA | $23,423/yr | — |
(Based on [Illawong suburb data](https://coverclub.com.au/stats/NSW/2234/illawong), [NSW state data](https://coverclub.com.au/stats/NSW), and [national data](https://coverclub.com.au/stats/national).)
A few things stand out here. The NSW state average of $9,528 looks alarming at first glance, but the median of $3,770 tells a more balanced story — a handful of very high-risk or high-value properties are pulling that average upward significantly. Illawong's premiums are broadly in line with the state median, which is reassuring.
The Sutherland LGA average of $23,423 is extraordinarily high and almost certainly reflects the influence of waterfront and flood-prone properties elsewhere in the LGA dragging the figure up. Illawong itself, sitting on higher ground away from direct flood plains, appears to benefit from a more favourable risk profile.
Nationally, the median of $2,764 is slightly lower than Illawong's median, which makes sense — Sydney's higher property values and rebuild costs naturally push premiums up compared to many regional or lower-cost areas around the country.
---
Property Features That Affect Your Premium
Several characteristics of this particular property have a direct bearing on the premium quoted. Understanding these helps you make sense of the figure — and potentially identify areas to review.
Double Brick Construction Double brick is one of the most resilient external wall materials available. It offers excellent resistance to fire, wind, and general wear, which insurers typically view favourably. Compared to weatherboard or lightweight cladding, double brick homes often attract lower premiums due to their durability and lower susceptibility to damage.
Tiled Roof Concrete or terracotta tile roofs are considered low-to-moderate risk by most insurers. They're durable, fire-resistant, and long-lasting — particularly relevant given Australia's bushfire risk profile. A tiled roof on a home built in 2012 should still be in excellent condition, which supports a competitive premium.
Slab Foundation A concrete slab foundation is standard for homes of this era in NSW and presents minimal additional risk to insurers. It's stable, well-understood, and unlikely to be a negative rating factor.
Swimming Pool The presence of a pool adds some complexity to the insurance picture. Pools can increase the cost of a rebuild (they're expensive to replace), and they may introduce some liability considerations depending on your policy. It's worth confirming your pool is covered under your building sum insured.
Above-Average Fittings With above-average fittings quality across a 235 sqm home, the $1,301,000 sum insured reflects the true cost of rebuilding to the same standard — including quality fixtures, finishes, and inclusions. Underinsuring a home like this could leave you significantly out of pocket after a major claim, so it's important the sum insured keeps pace with construction cost inflation.
Ducted Climate Control Ducted air conditioning is a meaningful addition to rebuild cost. It's a fixed installation that needs to be factored into your sum insured, and it's good to see it accounted for in a property of this specification.
---
Tips for Homeowners in Illawong
1. Review your sum insured annually Construction costs in NSW have risen sharply in recent years. A sum insured of $1,301,000 may be appropriate today, but it's worth reassessing each year — especially if you've undertaken renovations or if your insurer's building cost calculator suggests a higher figure. Underinsurance is one of the most common and costly mistakes homeowners make.
2. Compare quotes before renewing Loyalty doesn't always pay in insurance. Insurers regularly offer better rates to new customers than to existing policyholders. Even if your current premium seems reasonable, it costs nothing to compare quotes at CoverClub before your renewal date.
3. Check what's included in your building cover Building-only policies vary in what they cover beyond the structure itself. Make sure your policy explicitly covers fixed structures like the pool, fencing, retaining walls, and the ducted air conditioning system. Gaps in coverage can be just as costly as being underinsured.
4. Understand your excess This policy carries a $1,000 building excess. A higher excess generally reduces your premium, but make sure you're comfortable covering that amount out of pocket in the event of a claim. If cash flow is a concern, a lower excess — even at a slightly higher premium — might be the right trade-off.
---
Ready to Compare?
Whether you're renewing your current policy or shopping around for the first time, it pays to know where you stand. CoverClub makes it easy to compare home insurance quotes for properties across Illawong and the wider Sutherland Shire. Get a quote today and see how much you could save — or simply confirm you're already getting a fair deal.