Harlaxton vs Rockville, true annual running costs compared 2026
Last updated July 2026 · council rates 2026-27 (QLD), ATO 91c/km, Translink fares, AER electricity benchmarks
Harlaxton and Rockville are both Toowoomba Regional Council suburbs, sitting 3.2 km and 2.9 km from Toowoomba CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Rockville runs $547 a year cheaper than Harlaxton, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $6,270.
Over 10 years the gap between these two is about $6,300, about $12 a week, and most of it is the AI-estimated insurance line.
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Rockville
Annual cost breakdown
| Category | Harlaxton | Rockville | Difference |
|---|---|---|---|
| Council rates Official, 2026-27 | $1,444 | $1,444 | - |
| Water & sewerage Official, 2026-27 | $2,188 | $2,188 | - |
| Commute (driving) Modelled, 2026-27 | $1,073 | $976 | +$97 |
| Commute (public transport) Modelled, 2026-27 | $192 | $192 | - |
| Home insurance Estimated | $2,000 | $1,550 | +$450 |
| Body corporate (unit) Estimated | $2,000 | $2,200 | -$200 |
| Total (driving) | $6,705 | $6,158 | +$547 |
| Total (public transport) | $5,824 | $5,374 | +$450 |
Totals exclude electricity, estimated separately below. Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance estimated from ACCC premium rates; actual premiums vary. Council rates: minimum residential general rate (QLD).
| Dwelling | Harlaxton | Rockville | Difference |
|---|---|---|---|
| House | $2,274 | $2,274 | - |
| Unit | $1,870 | $1,870 | - |
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, Harlaxton vs Rockville (2026-27)
What the numbers show
Harlaxton and Rockville differ by $547 a year by car, but $450 of that is the building insurance estimate rather than a published figure. On the sourced costs, council rates, water and the commute, the gap is $97, so neither suburb is named cheaper here.
The biggest single gap is home insurance at $450 per year.
On public transport the gap is $450 per year, $5,824 from Harlaxton versus $5,374 from Rockville.
Where the difference actually comes from
- Council rates is identical at $1,444 a year.
- Water and sewerage is identical at $2,188 a year.
- Driving commute favours Rockville by $97 a year, $976 against $1,073.
- Building insurance favours Rockville by $450 a year, $1,550 against $2,000.
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 and the insurance band.
Fire risk is rated medium in Harlaxton against low in Rockville, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Harlaxton cumulative | Rockville cumulative | Difference |
|---|---|---|---|
| Year 1 | $6,705 | $6,158 | $547 |
| Year 3 | $20,724 | $19,034 | $1,690 |
| Year 5 | $35,598 | $32,694 | $2,904 |
| Year 10 | $76,865 | $70,595 | $6,270 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Harlaxton or Rockville cheaper to live in?
Neither is named cheaper. Harlaxton runs $6,705 a year by car and Rockville $6,158, but most of the $547 difference is the building insurance estimate rather than a published figure. On council rates, water and the commute, which are sourced, the gap is $97. Source: SuburbCost 2026 data.
What are council rates in Harlaxton and Rockville?
Annual council rates for a house are $1,444 in Harlaxton (Toowoomba Regional Council) and $1,444 in Rockville (Toowoomba Regional Council). Water and sewerage adds $2,188 in Harlaxton and $2,188 in Rockville. Both figures are the minimum residential general rate; properties on higher land value pay more.
How does the commute cost compare between Harlaxton and Rockville?
Annual driving commute costs are $1,073 from Harlaxton and $976 from Rockville to Toowoomba CBD (ATO 91c/km). Public transport costs $192 from Harlaxton and $192 from Rockville.
What is the 10-year cost difference between Harlaxton and Rockville?
At 3% annual cost growth, Harlaxton costs a cumulative $76,865 and Rockville costs $70,595 over 10 years by car. The cumulative difference is $6,270 in favour of Rockville. Excludes purchase price, mortgage, and personal expenses.
Which of Harlaxton and Rockville suits you better?
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Sources: Toowoomba Regional Council and Toowoomba Regional Council rate data, water utility pricing (QLD: Queensland Urban Utilities / Unitywater; NSW: Sydney Water / Hunter Water), ATO 91c/km, and SuburbCost insurance estimates from ACCC premium rates. Data updated July 2026.