Gymea vs Gymea Bay, true annual running costs compared 2026
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Gymea and Gymea Bay are both Sutherland rates (OLG suburbs, sitting 22.3 km and 23.1 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Gymea runs $421 a year cheaper than Gymea Bay, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $4,826.
Over 10 years the gap between these two is about $4,800, about $9 a week, and most of it is the AI-estimated insurance line.
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Gymea Bay
Annual cost breakdown
| Category | Gymea | Gymea Bay | Difference |
|---|---|---|---|
| Council rates Official, 2026-27 | $1,617 | $1,617 | - |
| Water & sewerage Official, 2026-27 | $1,548 | $1,548 | - |
| Commute (driving) Modelled, 2026-27 | $5,620 | $5,741 | -$121 |
| Commute (public transport) Modelled, 2026-27 | $2,400 | $2,400 | - |
| Home insurance Estimated | $1,150 | $1,450 | -$300 |
| Body corporate (unit) Estimated | $2,300 | $2,300 | - |
| Total (driving) | $9,935 | $10,356 | -$421 |
| Total (public transport) | $6,715 | $7,015 | -$300 |
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: average residential rate (NSW, IPART-uplifted).
| Dwelling | Gymea | Gymea Bay | 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, Gymea vs Gymea Bay (2026-27)
What the numbers show
Gymea and Gymea Bay differ by $421 a year by car, but $300 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 $121, so neither suburb is named cheaper here.
The biggest single gap is home insurance at $300 per year. Gymea Bay carries medium flood risk, which pushes estimated premiums higher.
On public transport the gap is $300 per year, $6,715 from Gymea versus $7,015 from Gymea Bay.
Where the difference actually comes from
- Council rates is identical at $1,617 a year.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Gymea by $121 a year, $5,620 against $5,741.
- Building insurance favours Gymea by $300 a year, $1,150 against $1,450.
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.
Flood risk is rated medium in Gymea Bay against low in Gymea, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Gymea cumulative | Gymea Bay cumulative | Difference |
|---|---|---|---|
| Year 1 | $9,935 | $10,356 | $421 |
| Year 3 | $30,708 | $32,009 | $1,301 |
| Year 5 | $52,746 | $54,981 | $2,235 |
| Year 10 | $113,894 | $118,720 | $4,826 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Gymea or Gymea Bay cheaper to live in?
Neither is named cheaper. Gymea runs $9,935 a year by car and Gymea Bay $10,356, but most of the $421 difference is the building insurance estimate rather than a published figure. On council rates, water and the commute, which are sourced, the gap is $121. Source: SuburbCost 2026 data.
What are council rates in Gymea and Gymea Bay?
Annual council rates for a house are $1,617 in Gymea (Sutherland rates (OLG) and $1,617 in Gymea Bay (Sutherland rates (OLG). Water and sewerage adds $1,548 in Gymea and $1,548 in Gymea Bay. 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 Gymea and Gymea Bay?
Annual driving commute costs are $5,620 from Gymea and $5,741 from Gymea Bay to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Gymea and $2,400 from Gymea Bay.
What is the 10-year cost difference between Gymea and Gymea Bay?
At 3% annual cost growth, Gymea costs a cumulative $113,894 and Gymea Bay costs $118,720 over 10 years by car. The cumulative difference is $4,826 in favour of Gymea. Excludes purchase price, mortgage, and personal expenses.
Which of Gymea and Gymea Bay suits you better?
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Sources: Sutherland rates (OLG and Sutherland rates (OLG 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.