Hillsborough vs Kotara South: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 88c/km, Opal & Translink fares, AER electricity benchmarks
Hillsborough and Kotara South are both Lake Macquarie rates (OLG suburbs, sitting 110.2 km and 111.3 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Kotara South runs $300 a year cheaper than Hillsborough, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $3,440.
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 →Hillsborough
Kotara South
Annual cost breakdown
| Category | Hillsborough | Kotara South | Difference |
|---|---|---|---|
| Council rates | $1,763 | $1,763 | - |
| Water & sewerage | $1,377 | $1,377 | - |
| Commute (driving) | $17,600 | $17,600 | - |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,000 | $1,700 | +$300 |
| Body corporate (unit) | $1,800 | $1,800 | - |
| Total (driving) | $22,740 | $22,440 | +$300 |
| Total (public transport) | $7,540 | $7,240 | +$300 |
Green = cheaper. Commute: ATO 88c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Hillsborough | Kotara South | Difference |
|---|---|---|---|
| House | $2,148 | $2,148 | - |
| Unit | $1,716 | $1,716 | - |
Estimated from AER residential benchmarks for each suburb's climate zone at 2025 rates (QLD 30c/kWh, NSW 33c/kWh incl. supply charge; unit ≈ 75% of a house). Get the free report for a breakdown by your exact number of occupants.
Cost breakdown chart
Annual cost breakdown — Hillsborough vs Kotara South (2026-27)
What the numbers show
Kotara South costs $300 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $3,440 in favour of Kotara South.
The biggest single gap is home insurance at $300 per year.
On public transport the gap is $300 per year, $7,540 from Hillsborough versus $7,240 from Kotara South.
10-year cumulative cost projection
| Year | Hillsborough cumulative | Kotara South cumulative | Difference |
|---|---|---|---|
| Year 1 | $22,740 | $22,440 | $300 |
| Year 3 | $70,287 | $69,360 | $927 |
| Year 5 | $120,730 | $119,137 | $1,593 |
| Year 10 | $260,689 | $257,249 | $3,440 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Hillsborough or Kotara South cheaper to live in?
Kotara South is cheaper to run by car at $22,440 per year versus $22,740 for Hillsborough, a difference of $300 annually. Figures cover council rates, water, commute (ATO 88c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Hillsborough and Kotara South?
Annual council rates for a house are $1,763 in Hillsborough (Lake Macquarie rates (OLG) and $1,763 in Kotara South (Lake Macquarie rates (OLG). Water and sewerage adds $1,377 in Hillsborough and $1,377 in Kotara South. 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 Hillsborough and Kotara South?
Annual driving commute costs are $17,600 from Hillsborough and $17,600 from Kotara South to Sydney CBD (ATO 88c/km). Public transport costs $2,400 from Hillsborough and $2,400 from Kotara South.
What is the 10-year cost difference between Hillsborough and Kotara South?
At 3% annual cost growth, Hillsborough costs a cumulative $260,689 and Kotara South costs $257,249 over 10 years by car. The cumulative difference is $3,440 in favour of Kotara South. Excludes purchase price, mortgage, and personal expenses.
Which of Hillsborough and Kotara South 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 88c/km, and SuburbCost AI insurance estimates. Data updated July 2026.