Lapstone vs Mount Portal: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Lapstone and Mount Portal are both Blue Mountains rates (OLG suburbs, sitting 54 km and 56.9 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Mount Portal runs $391 a year cheaper than Lapstone, driven mostly by the commute. Over 10 years at 3% growth that gap compounds to about $4,482.
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 →Lapstone
Mount Portal
Annual cost breakdown
| Category | Lapstone | Mount Portal | Difference |
|---|---|---|---|
| Council rates | $2,157 | $2,157 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $6,132 | $5,741 | +$391 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,550 | $2,550 | - |
| Body corporate (unit) | $2,100 | $2,100 | - |
| Total (driving) | $12,387 | $11,996 | +$391 |
| Total (public transport) | $8,655 | $8,655 | - |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Lapstone | Mount Portal | Difference |
|---|---|---|---|
| House | $2,720 | $2,391 | +$329 |
| Unit | $2,209 | $1,962 | +$247 |
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 — Lapstone vs Mount Portal (2026-27)
What the numbers show
Mount Portal costs $391 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $4,482 in favour of Mount Portal.
The biggest single gap is commute costs at $391 per year. Mount Portal is 56.9 km from Sydney CBD, which drives higher annual driving costs at the ATO rate of 91c/km.
On public transport the two suburbs cost almost the same, $8,655 and $8,655 a year, so the $391 driving gap nearly closes if you commute by public transport.
Where the difference actually comes from
- Council rates is identical at $2,157 a year.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Mount Portal by $391 a year, $5,741 against $6,132.
- Building insurance is identical at $2,550 a year.
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.
10-year cumulative cost projection
| Year | Lapstone cumulative | Mount Portal cumulative | Difference |
|---|---|---|---|
| Year 1 | $12,387 | $11,996 | $391 |
| Year 3 | $38,287 | $37,078 | $1,209 |
| Year 5 | $65,764 | $63,688 | $2,076 |
| Year 10 | $142,003 | $137,521 | $4,482 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Lapstone or Mount Portal cheaper to live in?
Mount Portal is cheaper to run by car at $11,996 per year versus $12,387 for Lapstone, a difference of $391 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Lapstone and Mount Portal?
Annual council rates for a house are $2,157 in Lapstone (Blue Mountains rates (OLG) and $2,157 in Mount Portal (Blue Mountains rates (OLG). Water and sewerage adds $1,548 in Lapstone and $1,548 in Mount Portal. 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 Lapstone and Mount Portal?
Annual driving commute costs are $6,132 from Lapstone and $5,741 from Mount Portal to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Lapstone and $2,400 from Mount Portal.
What is the 10-year cost difference between Lapstone and Mount Portal?
At 3% annual cost growth, Lapstone costs a cumulative $142,003 and Mount Portal costs $137,521 over 10 years by car. The cumulative difference is $4,482 in favour of Mount Portal. Excludes purchase price, mortgage, and personal expenses.
Which of Lapstone and Mount Portal 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: Blue Mountains rates (OLG and Blue Mountains 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.