Collaroy Plateau vs Cromer: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 88c/km, Opal & Translink fares, AER electricity benchmarks
Collaroy Plateau and Cromer are both Northern Beaches rates (OLG suburbs, sitting 17 km and 16.5 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Collaroy Plateau runs $1,302 a year cheaper than Cromer, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $14,926.
Over 10 years, Collaroy Plateau costs about $14,900 less to run than Cromer — the same as paying $14,900 less for the home. It's the cost no listing shows you.
Get the free report: 10-year costs, flood & fire risk, crime, schools and overall verdict →Collaroy Plateau
Cromer
Annual cost breakdown
| Category | Collaroy Plateau | Cromer | Difference |
|---|---|---|---|
| Council rates | $1,766 | $1,766 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $4,524 | $4,426 | +$98 |
| Commute (public transport) | $2,386 | $2,386 | - |
| Home insurance | $1,850 | $3,250 | -$1,400 |
| Body corporate (unit) | $2,300 | $2,300 | - |
| Total (driving) | $9,688 | $10,990 | -$1,302 |
| Total (public transport) | $7,550 | $8,950 | -$1,400 |
Green = cheaper. Commute: ATO 88c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Collaroy Plateau | Cromer | 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 — Collaroy Plateau vs Cromer (2026-27)
What the numbers show
Collaroy Plateau costs $1,302 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $14,926 in favour of Collaroy Plateau.
The biggest single gap is home insurance at $1,400 per year. Cromer carries high flood risk, which pushes estimated premiums higher.
On public transport the gap is $1,400 per year, $7,550 from Collaroy Plateau versus $8,950 from Cromer.
10-year cumulative cost projection
| Year | Collaroy Plateau cumulative | Cromer cumulative | Difference |
|---|---|---|---|
| Year 1 | $9,688 | $10,990 | $1,302 |
| Year 3 | $29,945 | $33,969 | $4,024 |
| Year 5 | $51,435 | $58,347 | $6,912 |
| Year 10 | $111,062 | $125,988 | $14,926 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Collaroy Plateau or Cromer cheaper to live in?
Collaroy Plateau is cheaper to run by car at $9,688 per year versus $10,990 for Cromer, a difference of $1,302 annually. Figures cover council rates, water, commute (ATO 88c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Collaroy Plateau and Cromer?
Annual council rates for a house are $1,766 in Collaroy Plateau (Northern Beaches rates (OLG) and $1,766 in Cromer (Northern Beaches rates (OLG). Water and sewerage adds $1,548 in Collaroy Plateau and $1,548 in Cromer. 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 Collaroy Plateau and Cromer?
Annual driving commute costs are $4,524 from Collaroy Plateau and $4,426 from Cromer to Sydney CBD (ATO 88c/km). Public transport costs $2,386 from Collaroy Plateau and $2,386 from Cromer.
What is the 10-year cost difference between Collaroy Plateau and Cromer?
At 3% annual cost growth, Collaroy Plateau costs a cumulative $111,062 and Cromer costs $125,988 over 10 years by car. The cumulative difference is $14,926 in favour of Collaroy Plateau. Excludes purchase price, mortgage, and personal expenses.
Which of Collaroy Plateau and Cromer 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: 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 88c/km, and SuburbCost AI insurance estimates. Data updated July 2026.