Seventeen Mile Rocks vs Sinnamon Park, true annual running costs compared 2026
Last updated July 2026 · council rates 2026-27 (QLD), ATO 91c/km, Translink fares, AER electricity benchmarks
Seventeen Mile Rocks and Sinnamon Park are both Brisbane City Council suburbs, sitting 11 km and 11.2 km from Brisbane CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Sinnamon Park runs $599 a year cheaper than Seventeen Mile Rocks, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $6,867.
Over 10 years the gap between these two is about $6,900, about $13 a week, and most of it is the AI-estimated insurance line.
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Sinnamon Park
Annual cost breakdown
| Category | Seventeen Mile Rocks | Sinnamon Park | Difference |
|---|---|---|---|
| Council rates Official, 2026-27 | $950 | $950 | - |
| Water & sewerage Official, 2026-27 | $1,900 | $1,900 | - |
| Commute (driving) Modelled, 2026-27 | $3,315 | $3,366 | -$51 |
| Commute (public transport) Modelled, 2026-27 | $192 | $192 | - |
| Home insurance Estimated | $2,800 | $2,150 | +$650 |
| Body corporate (unit) Estimated | $2,400 | $2,800 | -$400 |
| Total (driving) | $8,965 | $8,366 | +$599 |
| Total (public transport) | $5,842 | $5,192 | +$650 |
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 | Seventeen Mile Rocks | Sinnamon Park | Difference |
|---|---|---|---|
| House | $2,135 | $2,135 | - |
| Unit | $1,776 | $1,776 | - |
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, Seventeen Mile Rocks vs Sinnamon Park (2026-27)
What the numbers show
Seventeen Mile Rocks and Sinnamon Park differ by $599 a year by car, but $650 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 $51, so neither suburb is named cheaper here.
The biggest single gap is home insurance at $650 per year. Seventeen Mile Rocks carries medium flood risk, which pushes estimated premiums higher.
On public transport the gap is $650 per year, $5,842 from Seventeen Mile Rocks versus $5,192 from Sinnamon Park.
Where the difference actually comes from
- Council rates is identical at $950 a year.
- Water and sewerage is identical at $1,900 a year.
- Driving commute favours Seventeen Mile Rocks by $51 a year, $3,315 against $3,366.
- Building insurance favours Sinnamon Park by $650 a year, $2,150 against $2,800.
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 high in Seventeen Mile Rocks against medium in Sinnamon Park, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Seventeen Mile Rocks cumulative | Sinnamon Park cumulative | Difference |
|---|---|---|---|
| Year 1 | $8,965 | $8,366 | $599 |
| Year 3 | $27,710 | $25,858 | $1,852 |
| Year 5 | $47,596 | $44,416 | $3,180 |
| Year 10 | $102,774 | $95,907 | $6,867 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Seventeen Mile Rocks or Sinnamon Park cheaper to live in?
Neither is named cheaper. Seventeen Mile Rocks runs $8,965 a year by car and Sinnamon Park $8,366, but most of the $599 difference is the building insurance estimate rather than a published figure. On council rates, water and the commute, which are sourced, the gap is $51. Source: SuburbCost 2026 data.
What are council rates in Seventeen Mile Rocks and Sinnamon Park?
Annual council rates for a house are $950 in Seventeen Mile Rocks (Brisbane City Council) and $950 in Sinnamon Park (Brisbane City Council). Water and sewerage adds $1,900 in Seventeen Mile Rocks and $1,900 in Sinnamon Park. Both figures are the minimum residential general rate; properties on higher land value pay more.
How does the commute cost compare between Seventeen Mile Rocks and Sinnamon Park?
Annual driving commute costs are $3,315 from Seventeen Mile Rocks and $3,366 from Sinnamon Park to Brisbane CBD (ATO 91c/km). Public transport costs $192 from Seventeen Mile Rocks and $192 from Sinnamon Park.
What is the 10-year cost difference between Seventeen Mile Rocks and Sinnamon Park?
At 3% annual cost growth, Seventeen Mile Rocks costs a cumulative $102,774 and Sinnamon Park costs $95,907 over 10 years by car. The cumulative difference is $6,867 in favour of Sinnamon Park. Excludes purchase price, mortgage, and personal expenses.
Which of Seventeen Mile Rocks and Sinnamon Park suits you better?
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Sources: Brisbane City Council and Brisbane City 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.