Kilaben Bay vs Rathmines: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Kilaben Bay and Rathmines are both Lake Macquarie rates (OLG suburbs, sitting 100 km and 98.7 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Rathmines runs $13,161 a year cheaper than Kilaben Bay, driven mostly by the commute. Over 10 years at 3% growth that gap compounds to about $150,876.
Over 10 years, Rathmines costs about $150,900 less to run than Kilaben Bay — the same as paying $150,900 less for the home. It's the cost no listing shows you.
Get the free report: 10-year costs, flood & fire risk, crime, schools and overall verdict →Kilaben Bay
Rathmines
Annual cost breakdown
| Category | Kilaben Bay | Rathmines | Difference |
|---|---|---|---|
| Council rates | $1,763 | $1,763 | - |
| Water & sewerage | $1,377 | $1,377 | - |
| Commute (driving) | $17,472 | $4,311 | +$13,161 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,450 | $2,450 | - |
| Body corporate (unit) | $1,800 | $1,800 | - |
| Total (driving) | $23,062 | $9,901 | +$13,161 |
| Total (public transport) | $7,990 | $7,990 | - |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Kilaben Bay | Rathmines | 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 — Kilaben Bay vs Rathmines (2026-27)
What the numbers show
Rathmines costs $13,161 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $150,876 in favour of Rathmines.
The biggest single gap is commute costs at $13,161 per year. Kilaben Bay is 100 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, $7,990 and $7,990 a year, so the $13,161 driving gap nearly closes if you commute by public transport.
Where the difference actually comes from
- Council rates is identical at $1,763 a year.
- Water and sewerage is identical at $1,377 a year.
- Driving commute favours Rathmines by $13,161 a year, $4,311 against $17,472.
- Building insurance is identical at $2,450 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 | Kilaben Bay cumulative | Rathmines cumulative | Difference |
|---|---|---|---|
| Year 1 | $23,062 | $9,901 | $13,161 |
| Year 3 | $71,282 | $30,603 | $40,679 |
| Year 5 | $122,439 | $52,566 | $69,873 |
| Year 10 | $264,380 | $113,504 | $150,876 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Kilaben Bay or Rathmines cheaper to live in?
Rathmines is cheaper to run by car at $9,901 per year versus $23,062 for Kilaben Bay, a difference of $13,161 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Kilaben Bay and Rathmines?
Annual council rates for a house are $1,763 in Kilaben Bay (Lake Macquarie rates (OLG) and $1,763 in Rathmines (Lake Macquarie rates (OLG). Water and sewerage adds $1,377 in Kilaben Bay and $1,377 in Rathmines. 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 Kilaben Bay and Rathmines?
Annual driving commute costs are $17,472 from Kilaben Bay and $4,311 from Rathmines to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Kilaben Bay and $2,400 from Rathmines.
What is the 10-year cost difference between Kilaben Bay and Rathmines?
At 3% annual cost growth, Kilaben Bay costs a cumulative $264,380 and Rathmines costs $113,504 over 10 years by car. The cumulative difference is $150,876 in favour of Rathmines. Excludes purchase price, mortgage, and personal expenses.
Which of Kilaben Bay and Rathmines 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: Lake Macquarie rates (OLG and Lake Macquarie 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.