Coomba Park vs Wallis Lake: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 88c/km, Opal & Translink fares, AER electricity benchmarks
Coomba Park and Wallis Lake are both Mid-Coast rates (OLG suburbs, sitting 216 km and 219.5 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Wallis Lake runs $300 a year cheaper than Coomba Park, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $3,439.
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 →Coomba Park
Wallis Lake
Annual cost breakdown
| Category | Coomba Park | Wallis Lake | Difference |
|---|---|---|---|
| Council rates | $1,609 | $1,609 | - |
| Water & sewerage | $1,300 | $1,300 | - |
| Commute (driving) | $17,600 | $17,600 | - |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $3,100 | $2,800 | +$300 |
| Body corporate (unit) | $1,500 | $1,500 | - |
| Total (driving) | $23,609 | $23,309 | +$300 |
| Total (public transport) | $8,409 | $8,109 | +$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 | Coomba Park | Wallis Lake | 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 — Coomba Park vs Wallis Lake (2026-27)
What the numbers show
Wallis Lake costs $300 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $3,439 in favour of Wallis Lake.
The biggest single gap is home insurance at $300 per year. Coomba Park carries high flood risk, which pushes estimated premiums higher.
On public transport the gap is $300 per year, $8,409 from Coomba Park versus $8,109 from Wallis Lake.
10-year cumulative cost projection
| Year | Coomba Park cumulative | Wallis Lake cumulative | Difference |
|---|---|---|---|
| Year 1 | $23,609 | $23,309 | $300 |
| Year 3 | $72,973 | $72,046 | $927 |
| Year 5 | $125,343 | $123,751 | $1,592 |
| Year 10 | $270,651 | $267,212 | $3,439 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Coomba Park or Wallis Lake cheaper to live in?
Wallis Lake is cheaper to run by car at $23,309 per year versus $23,609 for Coomba Park, 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 Coomba Park and Wallis Lake?
Annual council rates for a house are $1,609 in Coomba Park (Mid-Coast rates (OLG) and $1,609 in Wallis Lake (Mid-Coast rates (OLG). Water and sewerage adds $1,300 in Coomba Park and $1,300 in Wallis Lake. 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 Coomba Park and Wallis Lake?
Annual driving commute costs are $17,600 from Coomba Park and $17,600 from Wallis Lake to Sydney CBD (ATO 88c/km). Public transport costs $2,400 from Coomba Park and $2,400 from Wallis Lake.
What is the 10-year cost difference between Coomba Park and Wallis Lake?
At 3% annual cost growth, Coomba Park costs a cumulative $270,651 and Wallis Lake costs $267,212 over 10 years by car. The cumulative difference is $3,439 in favour of Wallis Lake. Excludes purchase price, mortgage, and personal expenses.
Which of Coomba Park and Wallis Lake 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: Mid-Coast rates (OLG and Mid-Coast 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.