Castlereagh vs Yellow Rock: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 88c/km, Opal & Translink fares, AER electricity benchmarks
Castlereagh (Penrith rates (OLG) and Yellow Rock (Blue Mountains rates (OLG) attract comparison from buyers considering suburbs across different council areas at similar distances from Sydney CBD (53.8 km and 55.9 km).
The two sit within $240 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 →Castlereagh
Yellow Rock
Annual cost breakdown
| Category | Castlereagh | Yellow Rock | Difference |
|---|---|---|---|
| Council rates | $1,604 | $2,157 | -$553 |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $5,954 | $5,691 | +$263 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,600 | $2,550 | +$50 |
| Body corporate (unit) | $2,100 | $2,100 | - |
| Total (driving) | $11,706 | $11,946 | -$240 |
| Total (public transport) | $8,152 | $8,655 | -$503 |
Green = cheaper. Commute: ATO 88c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Castlereagh | Yellow Rock | Difference |
|---|---|---|---|
| House | $2,420 | $2,420 | - |
| Unit | $1,920 | $1,920 | - |
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 — Castlereagh vs Yellow Rock (2026-27)
What the numbers show
Castlereagh and Yellow Rock cost within $240 of each other annually by car. Over ten years with 3% annual growth the gap reaches roughly $2,752, making running cost a minor factor in the decision.
The biggest single gap is council rates at $553 per year.
On public transport the gap is $503 per year, $8,152 from Castlereagh versus $8,655 from Yellow Rock.
10-year cumulative cost projection
| Year | Castlereagh cumulative | Yellow Rock cumulative | Difference |
|---|---|---|---|
| Year 1 | $11,706 | $11,946 | $240 |
| Year 3 | $36,182 | $36,924 | $742 |
| Year 5 | $62,149 | $63,423 | $1,274 |
| Year 10 | $134,196 | $136,948 | $2,752 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Castlereagh or Yellow Rock cheaper to live in?
Castlereagh is cheaper to run by car at $11,706 per year versus $11,946 for Yellow Rock, a difference of $240 annually. Figures cover council rates, water, commute (ATO 88c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Castlereagh and Yellow Rock?
Annual council rates for a house are $1,604 in Castlereagh (Penrith rates (OLG) and $2,157 in Yellow Rock (Blue Mountains rates (OLG). Water and sewerage adds $1,548 in Castlereagh and $1,548 in Yellow Rock. 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 Castlereagh and Yellow Rock?
Annual driving commute costs are $5,954 from Castlereagh and $5,691 from Yellow Rock to Sydney CBD (ATO 88c/km). Public transport costs $2,400 from Castlereagh and $2,400 from Yellow Rock.
What is the 10-year cost difference between Castlereagh and Yellow Rock?
At 3% annual cost growth, Castlereagh costs a cumulative $134,196 and Yellow Rock costs $136,948 over 10 years by car. The cumulative difference is $2,752 in favour of Castlereagh. Excludes purchase price, mortgage, and personal expenses.
Which of Castlereagh and Yellow Rock 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: Penrith rates (OLG and Blue Mountains 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.