Castle Cove vs Middle Cove: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Castle Cove and Middle Cove are both Willoughby rates (OLG suburbs, sitting 9.1 km and 8.6 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
The two sit within $136 a year of each other to run, so running cost is a minor factor here. The decision comes down to schools, risk and lifestyle, all in the free report.
Over 10 years these two cost about the same to run. The difference here isn't money — it's location, schools and lifestyle.
Get the free report: 10-year costs, flood & fire risk, crime, schools and overall verdict →Castle Cove
Middle Cove
Annual cost breakdown
| Category | Castle Cove | Middle Cove | Difference |
|---|---|---|---|
| Council rates | $1,341 | $1,341 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $2,818 | $2,682 | +$136 |
| Commute (public transport) | $1,920 | $1,920 | - |
| Home insurance | $2,600 | $2,600 | - |
| Body corporate (unit) | $2,600 | $2,600 | - |
| Total (driving) | $8,307 | $8,171 | +$136 |
| Total (public transport) | $7,409 | $7,409 | - |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Castle Cove | Middle Cove | Difference |
|---|---|---|---|
| House | $2,342 | $2,342 | - |
| Unit | $1,909 | $1,909 | - |
Estimated from AER residential benchmarks for each suburb's climate zone at 2026-27 regulated prices for each suburb's electricity network, including supply charge (AER Default Market Offer caps, or the QCA price in regional Queensland; unit ≈ 75% of a house). Get the free report for a breakdown by your exact number of occupants.
Cost breakdown chart
Annual cost breakdown — Castle Cove vs Middle Cove (2026-27)
What the numbers show
Castle Cove and Middle Cove cost within $136 of each other annually by car. Over ten years with 3% annual growth the gap reaches roughly $1,559, making running cost a minor factor in the decision.
The biggest single gap is commute costs at $136 per year. Castle Cove is 9.1 km from Sydney CBD, which drives higher annual driving costs at the ATO rate of 91c/km.
On public transport the two suburbs cost almost the same, $7,409 and $7,409 a year, so the $136 driving gap nearly closes if you commute by public transport.
Where the difference actually comes from
- Council rates is identical at $1,341 a year.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Middle Cove by $136 a year, $2,682 against $2,818.
- Building insurance is identical at $2,600 a year.
Both suburbs sit in the same council area, so the rates line is identical and none of the difference between them comes from council. What separates them is commute distance.
10-year cumulative cost projection
| Year | Castle Cove cumulative | Middle Cove cumulative | Difference |
|---|---|---|---|
| Year 1 | $8,307 | $8,171 | $136 |
| Year 3 | $25,676 | $25,256 | $420 |
| Year 5 | $44,103 | $43,381 | $722 |
| Year 10 | $95,230 | $93,671 | $1,559 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Castle Cove or Middle Cove cheaper to live in?
Middle Cove is cheaper to run by car at $8,171 per year versus $8,307 for Castle Cove, a difference of $136 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Castle Cove and Middle Cove?
Annual council rates for a house are $1,341 in Castle Cove (Willoughby rates (OLG) and $1,341 in Middle Cove (Willoughby rates (OLG). Water and sewerage adds $1,548 in Castle Cove and $1,548 in Middle Cove. Both figures are the average residential rate reported to the Office of Local Government, uplifted by each council's IPART rate peg.
How does the commute cost compare between Castle Cove and Middle Cove?
Annual driving commute costs are $2,818 from Castle Cove and $2,682 from Middle Cove to Sydney CBD (ATO 91c/km). Public transport costs $1,920 from Castle Cove and $1,920 from Middle Cove.
What is the 10-year cost difference between Castle Cove and Middle Cove?
At 3% annual cost growth, Castle Cove costs a cumulative $95,230 and Middle Cove costs $93,671 over 10 years by car. The cumulative difference is $1,559 in favour of Middle Cove. Excludes purchase price, mortgage, and personal expenses.
Which of Castle Cove and Middle Cove is best to actually live in?
You've got the costs. Get the free personalised report for the rest: a clear verdict on which suburb wins, the full flood, fire and crime risk profile, nearest schools, estimated electricity cost by number of occupants, and your own loan or rent stress-tested over 10 years. No spam.
Related comparisons
Sources: Willoughby rates (OLG and Willoughby rates (OLG rate data, water utility pricing (QLD: Queensland Urban Utilities / Unitywater; NSW: Sydney Water / Hunter Water), ATO 91c/km, and SuburbCost AI insurance estimates. Data updated July 2026.