North Balgowlah vs Seaforth: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
North Balgowlah and Seaforth are both Northern Beaches rates (OLG suburbs, sitting 9.6 km and 8.6 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
The two sit within $30 a year of each other to run, so running cost is a minor factor here. The decision comes down to schools, risk and lifestyle, all in the free report.
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 →North Balgowlah
Seaforth
Annual cost breakdown
| Category | North Balgowlah | Seaforth | Difference |
|---|---|---|---|
| Council rates | $1,766 | $1,766 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $2,952 | $2,682 | +$270 |
| Commute (public transport) | $1,920 | $1,920 | - |
| Home insurance | $1,850 | $2,150 | -$300 |
| Body corporate (unit) | $2,600 | $2,600 | - |
| Total (driving) | $8,116 | $8,146 | -$30 |
| Total (public transport) | $7,084 | $7,384 | -$300 |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | North Balgowlah | Seaforth | 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 — North Balgowlah vs Seaforth (2026-27)
What the numbers show
North Balgowlah and Seaforth cost within $30 of each other annually by car. Over ten years with 3% annual growth the gap reaches roughly $344, making running cost a minor factor in the decision.
The biggest single gap is home insurance at $300 per year.
On public transport the gap is $300 per year, $7,084 from North Balgowlah versus $7,384 from Seaforth.
Where the difference actually comes from
- Council rates is identical at $1,766 a year.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Seaforth by $270 a year, $2,682 against $2,952.
- Building insurance favours North Balgowlah by $300 a year, $1,850 against $2,150.
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 Seaforth against low in North Balgowlah, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | North Balgowlah cumulative | Seaforth cumulative | Difference |
|---|---|---|---|
| Year 1 | $8,116 | $8,146 | $30 |
| Year 3 | $25,086 | $25,178 | $92 |
| Year 5 | $43,089 | $43,248 | $159 |
| Year 10 | $93,041 | $93,385 | $344 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is North Balgowlah or Seaforth cheaper to live in?
North Balgowlah is cheaper to run by car at $8,116 per year versus $8,146 for Seaforth, a difference of $30 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in North Balgowlah and Seaforth?
Annual council rates for a house are $1,766 in North Balgowlah (Northern Beaches rates (OLG) and $1,766 in Seaforth (Northern Beaches rates (OLG). Water and sewerage adds $1,548 in North Balgowlah and $1,548 in Seaforth. 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 North Balgowlah and Seaforth?
Annual driving commute costs are $2,952 from North Balgowlah and $2,682 from Seaforth to Sydney CBD (ATO 91c/km). Public transport costs $1,920 from North Balgowlah and $1,920 from Seaforth.
What is the 10-year cost difference between North Balgowlah and Seaforth?
At 3% annual cost growth, North Balgowlah costs a cumulative $93,041 and Seaforth costs $93,385 over 10 years by car. The cumulative difference is $344 in favour of North Balgowlah. Excludes purchase price, mortgage, and personal expenses.
Which of North Balgowlah and Seaforth 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.
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Sources: Northern Beaches rates (OLG and Northern Beaches rates (OLG rate data, water utility pricing (QLD: Queensland Urban Utilities / Unitywater; NSW: Sydney Water / Hunter Water), ATO 91c/km, and SuburbCost AI insurance estimates. Data updated July 2026.