Castlecrag NSW

Postcode 2068 · Willoughby LGA

Castlecrag is a smaller suburb in New South Wales within the Willoughby local government area (postcode 2068). With a population of 2,965, the suburb has a mature demographic with a median age of 47. Households earn a median income of $243K per year, with an average household size of 3 people. The most common occupations are professionals, managers, clerical & administrative. The top ancestries reported are English, Australian, Irish.

The median house price in Castlecrag is $4.6 million, having grown strongly 8% over the past year. Units have a median price of $1.8 million (-22.6% YoY). The current median weekly rent is $905. This gives a gross rental yield of approximately 1.0%. 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 2,156 incidents per 100,000 population.

From an investment perspective, Castlecrag offers a gross rental yield of 1.0%, rated as low yield. Property prices are above the state median ($4.6M/$1.5M), placing it in the premium segment. The price-to-income ratio of 18.9x is considered stretched. House prices have moved +8.0% year-on-year.

INVESTMENT SIGNALS
Rental Yield1.0% Low Yield
Price vs State$4.6M/$1.5M Above Median
Affordability18.9x Stretched
Price Momentum+8.0% Rising
SEIFA INDEX (ABS)
Advantage10/10
Education10/10
Economic10/10
Disadvantage10/10
MEDIAN HOUSE
$4.6M
8% YoY
MEDIAN UNIT
$1.8M
-22.6% YoY
MEDIAN RENT /WK
$1010
POPULATION
2,965
DEMOGRAPHICS
Median Age47
Household Size3
HH Income /wk$4,675
Personal Income /wk$1446
Mortgage /mth$4,333
CRIME (Willoughby LGA)
Crime Rate (per 100k)2,156
Total Incidents1,717
TRANSPORT
Bus Stops13
HOSPITALS (1)
Castlecrag Private Hospitalprivate
Data: 2025