Diddillibah vs Rosemount: true annual running costs compared (2026)
Last updated July 2026 · council rates 2026-27 (QLD), ATO 91c/km, Translink fares, AER electricity benchmarks
Diddillibah and Rosemount are both Sunshine Coast Council suburbs, sitting 6.6 km and 9.4 km from Maroochydore CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Diddillibah runs $583 a year cheaper than Rosemount, driven mostly by the commute. Over 10 years at 3% growth that gap compounds to about $6,683.
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 →Diddillibah
Rosemount
Annual cost breakdown
| Category | Diddillibah | Rosemount | Difference |
|---|---|---|---|
| Council rates | $1,771 | $1,771 | - |
| Water & sewerage | $2,094 | $2,094 | - |
| Commute (driving) | $2,116 | $2,899 | -$783 |
| Commute (public transport) | $192 | $192 | - |
| Home insurance | $3,200 | $3,000 | +$200 |
| Body corporate (unit) | $1,800 | $1,800 | - |
| Total (driving) | $9,181 | $9,764 | -$583 |
| Total (public transport) | $7,257 | $7,057 | +$200 |
Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: minimum residential general rate (QLD).
| Dwelling | Diddillibah | Rosemount | Difference |
|---|---|---|---|
| House | $2,135 | $2,135 | - |
| Unit | $1,776 | $1,776 | - |
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 — Diddillibah vs Rosemount (2026-27)
What the numbers show
Diddillibah costs $583 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $6,683 in favour of Diddillibah.
The biggest single gap is commute costs at $783 per year. Rosemount is 9.4 km from Maroochydore CBD, which drives higher annual driving costs at the ATO rate of 91c/km.
On public transport the gap is $200 per year, $7,257 from Diddillibah versus $7,057 from Rosemount.
Where the difference actually comes from
- Council rates is identical at $1,771 a year.
- Water and sewerage is identical at $2,094 a year.
- Driving commute favours Diddillibah by $783 a year, $2,116 against $2,899.
- Building insurance favours Rosemount by $200 a year, $3,000 against $3,200.
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.
10-year cumulative cost projection
| Year | Diddillibah cumulative | Rosemount cumulative | Difference |
|---|---|---|---|
| Year 1 | $9,181 | $9,764 | $583 |
| Year 3 | $28,378 | $30,180 | $1,802 |
| Year 5 | $48,743 | $51,838 | $3,095 |
| Year 10 | $105,250 | $111,933 | $6,683 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Diddillibah or Rosemount cheaper to live in?
Diddillibah is cheaper to run by car at $9,181 per year versus $9,764 for Rosemount, a difference of $583 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Diddillibah and Rosemount?
Annual council rates for a house are $1,771 in Diddillibah (Sunshine Coast Council) and $1,771 in Rosemount (Sunshine Coast Council). Water and sewerage adds $2,094 in Diddillibah and $2,094 in Rosemount. Both figures are the minimum residential general rate; properties on higher land value pay more.
How does the commute cost compare between Diddillibah and Rosemount?
Annual driving commute costs are $2,116 from Diddillibah and $2,899 from Rosemount to Maroochydore CBD (ATO 91c/km). Public transport costs $192 from Diddillibah and $192 from Rosemount.
What is the 10-year cost difference between Diddillibah and Rosemount?
At 3% annual cost growth, Diddillibah costs a cumulative $105,250 and Rosemount costs $111,933 over 10 years by car. The cumulative difference is $6,683 in favour of Diddillibah. Excludes purchase price, mortgage, and personal expenses.
Which of Diddillibah and Rosemount 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: Sunshine Coast Council and Sunshine Coast Council 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.