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Suburb profile ·Willoughby LGA · NSW ·2068

Castlecrag NSW 2068

Castlecrag is in Willoughby LGA, NSW, postcode 2068, with population 2,965.

The read

Growth-momentum

There are enough stretched or weaker signals here that you should assume trade-offs rather than a clean story. Use compare mode to see whether the downside is price, local quality, or weaker momentum before treating it as a target suburb.

$1038/wk
+7.9% YoY
Mar 2025 → Apr 2026 · 14 periods
NSW Fair Trading · postcode 2068 · Apr 2026
$1165
$865
Mar 2025Apr 2026
Why it fits

Recent price movement shows visible market momentum. Transport coverage adds a practical access signal. Higher SEIFA context supports a stronger local-quality read.

What to check

Premium pricing raises the bar for yield, affordability, and downside checks. Gross yield looks low for an income-first use case.

Median house
$4.8M
House median, latest period
13.4%YoY D10 vs AU
Median rent
$1038/wk
Rent-pressure candidate
7.9%YoY D10 vs AU
Gross yield
1.1%
Low yield band
D2 vs AU
Population
2,965
3K local footprint
D9 vs AU
Schools
No matched school data
Solar
1,742
178 added 12mo · 13MW

Price history

HousesUnits

Houses to Q4'25 · Units to 2021 — house and unit medians are released on separate cycles, so their latest period can differ.

Trend & investor depth

Cycle positionAt its peak
Low · 2006Peak · 2025

At / near its all-time high

Price growth (compound)3-yr +6.4%/yr · 5-yr +8.3%/yr · 10-yr +6.5%/yr
Indicative cashflow-$3,746/wk (-$194,807/yr) · interest-only @ 6.1%, 80% LVR

Indicative cashflow is interest-only and excludes tax — use the calculator for a full projection.

Affordability

Buying
19.8x
median home price as a multiple of annual household income
Stretched
Renting
22%
median weekly rent as a share of gross household income (the 30% rule)
Manageable

Owners with a mortgage repay a median of $4,333/mo, while renters pay about $4,498/mo — renting runs $165/mo higher on these medians.

Median price
$4.82M
Household income · yr
$243K
Median rent · wk
$1,038
Owner mortgage · mo
$4,333
Gross yield
1.1%

Household income

$243K household · yr+195.3% vs NSW suburb median
Personal
$75K
Family
$253K
Household
$243K
Crime January 2025 - December 2025
1,717
2,205 per 100k
D3 vs AU

Crime

Rate · per 100k2,205
Total incidents1,717· January 2025 - December 2025
  • Assault30854%
  • Sexual Offences9617%
  • Robbery102%
  • Break And Enter16128%

Full data detail

Castlecrag NSW — Property Data and Demographics

Located in New South Wales within the Willoughby local government area, Castlecrag is a compact suburb (postcode 2068). The area has roughly 2,965 residents and an older-leaning population, with a median age of 47. Households earn a median income of $243K per year, with an average household size of 3 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +1.0% year-on-year at the LGA level. NSW employment has moved +0.3% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. NSW also had 37 Commonwealth-backed major projects under construction, 5 underway, and 75 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are professionals, managers, clerical & administrative. Employment in the area leans toward professional services and finance & insurance. The top ancestries reported are English, Australian, Irish.

Castlecrag has a median house price of $4.8 million, which has risen steeply by 13.4% year-on-year. Units have a median price of $3.1 million. The current median weekly rent is $1038. This gives a gross rental yield of approximately 1.1%. The median monthly mortgage repayment is $4,333.

Public transport access includes 13 bus stops. Healthcare facilities include 1 private hospital. The crime rate in the Willoughby LGA is below average at 2,205 incidents per 100,000 population.

On the investment side, Castlecrag shows a gross rental yield of approximately 1.1%, rated as low yield. Property prices are above the state median ($4.8M/$1.5M), placing it in the premium segment. The price-to-income ratio of 19.8x is considered stretched. House prices have moved +13.4% year-on-year. Population growth of +1.0% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.

Market & money
Investment signalsHeuristics
Rental Yield1.1% Low Yield
Price vs State$4.8M/$1.5M Above Median
Affordability19.8x Stretched
Price Momentum+13.4% Rising
Pop. Growth+1.0%· Stable
Development+0%· Steady
InvestmentNSW
Mortgage · mth$4,333
Rent · wk(Census)$1010
Market rent · wk(2026-04)$1038
Gross yield1.1%
Price / income19.8x
Sales vol (latest Q)(2025-Q4)5
Population growth · Willoughby LGAABS ERP
Population (2025)80,520
5-year growth+0.5% CAGR
YoY change+1%
20012025
Development · Willoughby LGAABS Approvals
Approvals (2026)142
Houses52
Units90
YoY change+0%
Employment · Willoughby LGASALM
Unemployment (Dec-25)4.4%
YoY change+0.5pp
Dec-10Dec-25
Property investors · Postcode 2068ATO
Negatively geared1,247 (11% of filers)
Avg rental loss$16,779/yr
Landlords (rental income)2,733
Reported capital gains2,408
People & prosperity
DemographicsCensus 21
Population2,965
Median age47
Household size3
HH income · wk$4,675
Personal income · wk$1,446
Persons / bedroom0.8
SEIFA indexABS
Advantage (IRSAD)10/10
Education (IEO)10/10
Economic (IER)10/10
Disadvantage (IRSD)10/10
Area & amenity
Local amenitiesOSM
Supermarkets0
Pharmacies0
GP / clinics0
Fuel stations0
Cafes & dining2
TransportGTFS
Bus stops13
Hospitals · 1AIHW
Public0
Private1
Castlecrag Private Hospitalprivate
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Current status
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Sources & freshness
Strong evidence

Castlecrag has enough direct local evidence for a first-pass decision.

QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.

PRICE POSTURE
NSW price medians are parser-guarded official records.

Official sale records parsed from cached Bulk PSI ZIP files with parser guardrails for token sales, non-house zoning, and low-value strata component records

RENT POSTURE
Rent is using a state market dataset when available.

Use current rent as a starting signal, not as a fixed underwriting truth.

SERVICE POSTURE
Service coverage is matched locally, not inferred nationally.

Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.

Data status
Property prices
NSW Valuer General · 2025-Q4 · Official sale records parsed from cached Bulk PSI ZIP files with parser guardrails for token sales, non-house zoning, and low-value strata component records
medium stability · automated · every update · weekly
Available
Market rent
NSW Fair Trading · 2026-04 · State market dataset
stable source · automated · every update · monthly
Available
Crime
BOCSAR · January 2025 - December 2025 · Area-level release dataset
medium stability · automated · every update · release-based
Available
Schools
ACARA 2025 · No local school matches exposed
stable source · automated · every update · annual
Missing
Hospitals
AIHW · 1 hospitals matched
medium stability · manual file · snapshot · mixed
Available
Transport
GTFS feeds · 13 matched stops/stations
medium stability · manual file · snapshot · mixed
Available
Population growth
ABS ERP · 2025 · Annual estimate series
stable source · automated · every update · annual
Available
Building approvals
ABS Building Approvals · 2026 · Annual release series
stable source · automated · every update · monthly
Available
Available means a direct local dataset is linked. Verify means coverage exists but freshness or precision is weaker, such as ABS price fallback, Census rent fallback, or low-confidence hospital matching.

Castlecrag FAQ

Common questions
  1. What LGA is Castlecrag in?

    Castlecrag is in the Willoughby Local Government Area, NSW, postcode 2068. Council-level context for Willoughby LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.

  2. What is the median house price in Castlecrag?

    The current median house price in Castlecrag, NSW is $4.8M, based on the latest available sales data from state Valuers General offices and ABS Data by Region.

  3. What is the typical weekly rent in Castlecrag?

    The median weekly rent in Castlecrag is $1038/wk, based on the current market rent dataset. The current rent signal is rent-pressure candidate.

  4. What does the rent signal say about Castlecrag?

    Rent-pressure candidate: Castlecrag rents screen above the local benchmark. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.

  5. Is Castlecrag a good investment?

    QuickProperty's investment signals for Castlecrag show: Low Yield, Above Median, Stretched. These are computed from price, rent, income, and population data — not an opaque score.

  6. Where does QuickProperty get its data for Castlecrag?

    Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.

  7. How often is the Castlecrag data updated?

    Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.