Asquith vs Mount Colah: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 88c/km, Opal & Translink fares, AER electricity benchmarks
Asquith and Mount Colah are both Hornsby rates (OLG suburbs, sitting 21.8 km and 23.2 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Asquith runs $607 a year cheaper than Mount Colah, driven mostly by home insurance. Over 10 years at 3% growth that gap compounds to about $6,959.
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 →Asquith
Mount Colah
Annual cost breakdown
| Category | Asquith | Mount Colah | Difference |
|---|---|---|---|
| Council rates | $1,541 | $1,541 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $5,359 | $5,566 | -$207 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,150 | $2,550 | -$400 |
| Body corporate (unit) | $2,300 | $2,300 | - |
| Total (driving) | $10,598 | $11,205 | -$607 |
| Total (public transport) | $7,639 | $8,039 | -$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 | Asquith | Mount Colah | 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 — Asquith vs Mount Colah (2026-27)
What the numbers show
Asquith costs $607 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $6,959 in favour of Asquith.
The biggest single gap is home insurance at $400 per year.
On public transport the gap is $400 per year, $7,639 from Asquith versus $8,039 from Mount Colah.
10-year cumulative cost projection
| Year | Asquith cumulative | Mount Colah cumulative | Difference |
|---|---|---|---|
| Year 1 | $10,598 | $11,205 | $607 |
| Year 3 | $32,757 | $34,634 | $1,877 |
| Year 5 | $56,266 | $59,489 | $3,223 |
| Year 10 | $121,494 | $128,453 | $6,959 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Asquith or Mount Colah cheaper to live in?
Asquith is cheaper to run by car at $10,598 per year versus $11,205 for Mount Colah, a difference of $607 annually. Figures cover council rates, water, commute (ATO 88c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Asquith and Mount Colah?
Annual council rates for a house are $1,541 in Asquith (Hornsby rates (OLG) and $1,541 in Mount Colah (Hornsby rates (OLG). Water and sewerage adds $1,548 in Asquith and $1,548 in Mount Colah. 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 Asquith and Mount Colah?
Annual driving commute costs are $5,359 from Asquith and $5,566 from Mount Colah to Sydney CBD (ATO 88c/km). Public transport costs $2,400 from Asquith and $2,400 from Mount Colah.
What is the 10-year cost difference between Asquith and Mount Colah?
At 3% annual cost growth, Asquith costs a cumulative $121,494 and Mount Colah costs $128,453 over 10 years by car. The cumulative difference is $6,959 in favour of Asquith. Excludes purchase price, mortgage, and personal expenses.
Which of Asquith and Mount Colah 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: Hornsby rates (OLG and Hornsby 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.