Castle Cove vs Roseville

Roseville is the younger of the two, with a median age of 40 against 46 in Castle Cove. In both, most households own their home, most homes are detached houses, and most households are couple families.

Which one suits you?

There is no overall winner — the suburb that suits a family with school-age kids is routinely the wrong one for someone commuting into the city. So each of these answers its own question, against a checklist you can see, using the same figures in the tables below.

Families with school-age kids

Roseville

ahead on 3 of the 6 things we measure here

  • has more childcare (10 vs 1)
  • has more schools rated above their peers (2 vs 0)
  • has more parks and reserves (16 vs 6)
  • But Castle Cove has more separate houses rather than flats (90% vs 69%)

Weighs schools, house stock, crime, parks, childcare, and who already lives there.

First-home buyers

Too close to call

Nothing among the 2 things we measure here separates them by enough to be worth acting on.

Weighs house prices and mortgage stress.

Renters

Roseville

ahead on 3 of the 3 things we measure here

  • has a bigger rental market to choose from (26% vs 12%)
  • has cheaper rent ($600/wk vs $1,000/wk)
  • leaves renters under less rental stress (19% vs 29%)

Weighs rent, rental stress, and how much is for rent.

Commuting to the city

Roseville

ahead on the one thing that separates them

  • is more walkable (80/100 vs 54/100)

Weighs distance, drive time, rail access, and walkability.

Downsizers and retirees

Roseville

ahead on 2 of the 5 things we measure here

  • has more units and townhouses to downsize into (31% vs 10%)
  • is more walkable (80/100 vs 54/100)
  • But Castle Cove has more residents already 65 and over (22% vs 17%)

Weighs smaller dwellings, who already lives there, GPs, walkability, and crime.

Investors

Too close to call

Nothing among the 2 things we measure here separates them by enough to be worth acting on.

Weighs house yield and population growth.

Where they sit

Castle Cove and Roseville drawn to the same scale. Both outlines are shown together, so the map answers whether they share a border and how their areas compare.

Castle Cove Roseville
Hides rows where both suburbs match

Bars start at zero. Scores, risks and rankings are drawn against their full 0–100 range; other rows are drawn in proportion to the larger of the two.

Side by side, out of 100

Risks are inverted — shown as safety and low exposure — so a longer bar always means better.

Castle Cove Roseville
Walkability 54 / 80
Castle Cove — Walkability: 54/100 Roseville — Walkability: 80/100
Safety 78 / 73
Castle Cove — Safety: 78/100 Roseville — Safety: 73/100
Low fire risk 100 / 48
Castle Cove — Low fire risk: 100/100 Roseville — Low fire risk: 48/100

Demographics

Roseville has more residents (10,340 vs 2,643); Castle Cove rents higher ($1,000/wk vs $600/wk).

Castle Cove Roseville
Population 2,643 10,340
+291% vs other
Population trend (2016 → 2021) +3.5% +2.6%
Median age 46 40
Median household income $178,828/yr
+7% vs other
 $166,400/yr
Median weekly rent $1,000/wk
+40% vs other
 $600/wk

Age profile

Share of residents in each band, 2021 Census.

Castle Cove Roseville
0-4 3.4% / 4.7%
Castle Cove — 0-4: 3.4% Roseville — 0-4: 4.7%
5-14 16.4% / 15.4%
Castle Cove — 5-14: 16.4% Roseville — 5-14: 15.4%
15-19 7.1% / 7.4%
Castle Cove — 15-19: 7.1% Roseville — 15-19: 7.4%
20-24 5.4% / 5.9%
Castle Cove — 20-24: 5.4% Roseville — 20-24: 5.9%
25-34 4.7% / 9.5%
Castle Cove — 25-34: 4.7% Roseville — 25-34: 9.5%
35-44 11.0% / 14.3%
Castle Cove — 35-44: 11.0% Roseville — 35-44: 14.3%
45-54 15.7% / 14.7%
Castle Cove — 45-54: 15.7% Roseville — 45-54: 14.7%
55-64 13.8% / 11.2%
Castle Cove — 55-64: 13.8% Roseville — 55-64: 11.2%
65-74 10.4% / 9.5%
Castle Cove — 65-74: 10.4% Roseville — 65-74: 9.5%
75-84 8.1% / 5.2%
Castle Cove — 75-84: 8.1% Roseville — 75-84: 5.2%
85+ 3.9% / 2.3%
Castle Cove — 85+: 3.9% Roseville — 85+: 2.3%

Bars are drawn against the largest share shown (16.4%).

Who lives together

Household composition, 2021 Census.

Castle Cove 65.5% couple families
Castle Cove — Couple Families: 65.5% Castle Cove — Lone Person: 21.0% Castle Cove — One Parent Families: 11.0% Castle Cove — Group Household: 1.8% Castle Cove — Other Families: 0.6%
Roseville 61.6% couple families
Roseville — Couple Families: 61.6% Roseville — Lone Person: 21.8% Roseville — One Parent Families: 12.0% Roseville — Group Household: 3.7% Roseville — Other Families: 0.9%
Couple Families Lone Person One Parent Families Group Household Other Families

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

Castle Cove 11.6% renting
Castle Cove — Owned Outright: 52.4% Castle Cove — Mortgage: 36.0% Castle Cove — Renting: 11.6%
Roseville 26.3% renting
Roseville — Owned Outright: 39.6% Roseville — Mortgage: 34.0% Roseville — Renting: 26.3%
Owned outright Mortgage Renting

Qualifications

Highest non-school qualification, residents 15+, 2021 Census.

Castle Cove Roseville
Bachelor Degree 25.2% / 27.4%
Castle Cove — Bachelor Degree: 25.2% Roseville — Bachelor Degree: 27.4%
Postgraduate Degree 11.8% / 15.0%
Castle Cove — Postgraduate Degree: 11.8% Roseville — Postgraduate Degree: 15.0%
Advanced Diploma / Diploma 8.3% / 6.8%
Castle Cove — Advanced Diploma / Diploma: 8.3% Roseville — Advanced Diploma / Diploma: 6.8%
Certificate III & IV 4.0% / 3.3%
Castle Cove — Certificate III & IV: 4.0% Roseville — Certificate III & IV: 3.3%
Graduate Diploma / Certificate 2.9% / 3.0%
Castle Cove — Graduate Diploma / Certificate: 2.9% Roseville — Graduate Diploma / Certificate: 3.0%

Bars are drawn against the largest share shown (27.4%).

Where residents were born

Largest overseas birthplaces, as a share of all residents, 2021 Census. A dash means that country is not among the suburb's own eight largest.

Castle Cove Roseville
China 7.3% / 9.9%
Castle Cove — China: 7.3% Roseville — China: 9.9%
England 4.7% / 4.3%
Castle Cove — England: 4.7% Roseville — England: 4.3%
New Zealand 1.4% / 1.9%
Castle Cove — New Zealand: 1.4% Roseville — New Zealand: 1.9%
Malaysia 0.9% / 1.5%
Castle Cove — Malaysia: 0.9% Roseville — Malaysia: 1.5%
India — / 1.4%
Castle Cove — India: not among its largest Roseville — India: 1.4%
Japan 0.9% / —
Castle Cove — Japan: 0.9% Roseville — Japan: not among its largest

Bars are drawn against the largest share shown (9.9%).

What people live in

Occupied private dwellings by structure, 2021 Census.

Castle Cove 90.3% houses
Castle Cove — Houses: 90.3% Castle Cove — Flats / Apartments: 3.6% Castle Cove — Townhouses: 6.0%
Roseville 68.8% houses
Roseville — Houses: 68.8% Roseville — Flats / Apartments: 28.4% Roseville — Townhouses: 2.8%
Houses Flats / Apartments Townhouses

Property market

Castle Cove Roseville
Median house price $3,940,000 $3,990,000
Median unit price — $1,075,000
Median land price —
same for both
Typical days to sell (houses) 24 days
from 10 sales
 23 days
from 94 sales

House price by bedroom count

Only bed counts both suburbs published enough sales for. Sale counts are shown because the buckets differ in depth.

Castle Cove Roseville
3 bed $3.52M / $3.1M
Castle Cove — 3 bed: $3.52M (7 sales) Roseville — 3 bed: $3.1M (24 sales)

7 vs 24 sales

4 bed $4M / $3.9M
Castle Cove — 4 bed: $4M (7 sales) Roseville — 4 bed: $3.9M (50 sales)

7 vs 50 sales

5 bed $4.3M / $4.5M
Castle Cove — 5 bed: $4.3M (9 sales) Roseville — 5 bed: $4.5M (38 sales)

9 vs 38 sales

Zoning mix

Castle Cove has more land zoned for conservation (69% vs 9%).

Castle Cove Roseville
Residential 19% 76%
Environmental 69% 9%
Parks and recreation 8% 6%
Infrastructure and transport 1% 5%
Industrial 0% 2%
Commercial 0% 1%
Planning zones cover 98% of Castle Cove and 100% of Roseville. The rest is unzoned land such as water or road reserve.
Zoning sets what may be built, not what is there today. A single address can sit in a different zone to the suburb around it. Zones as at 2026-09.

Development activity

Castle Cove Roseville
New dwellings approved 249
across Willoughby
 908
across Ku-ring-gai
Approvals change year on year +458% +0%

Gross rental yield

Gross — before strata, rates, management, insurance and vacancy. From median advertised rents and median asking prices over the last 6 months. How we calculate.

Castle Cove Roseville
Houses 2.5%
$2,000/wk on $4.2M
 2.3%
$1,650/wk on $3.67M
Units — 4.8%
$878/wk on $950K

Ranking within NSW

Castle Cove Roseville
House price Higher than 97% of NSW
same for both
Income Higher than 99% of NSW Higher than 97% of NSW
Schools —
same for both
Walkability Higher than 82% of NSW Higher than 92% of NSW
Affordability Higher than 12% of NSW Higher than 10% of NSW
EV adoption Higher than 99% of NSW
same for both
NBN connectivity Higher than 94% of NSW Higher than 92% of NSW
Rental yield (houses) Higher than 6% of NSW Higher than 5% of NSW
Rental yield (units) — Higher than 58% of NSW

Liveability

Roseville is more walkable (80 vs 54); Castle Cove scores higher overall (87 vs 79).

Castle Cove Roseville
Grade A+ A
Score 87/100 79/100
Socio-economic band very advantaged area
decile 10/10
same for both

Risk profile

Roseville carries more bushfire risk (52 vs 0).

Castle Cove Roseville
Bushfire None
0/100
 Moderate
52/100
Crime Low
22/100
 Low
27/100
Flood Not mapped
no mapped data here
same for both
Coastal erosion None
0/100
same for both
Aircraft noise None
0/100
same for both
Industrial facilities nearby 3
within 5 km
 4
within 5 km

Schools

Castle Cove Roseville
Inside the suburb 1 2
Rated above peers 0 2
Rated at peers 1 0
Rated below peers 0
same for both
Universities within 10 km 3
Australian Catholic University-North Sydney Campus, 5.6 km
 3
Macquarie University Wallumattagal Campus at North Ryde, 5.1 km
Full-time students aged 15–24 4.0% 4.6%

Schools in Castle Cove

  • Castle Cove Public School Government · Primary at peers

Schools in Roseville

  • Roseville College Independent · Combined above peers
  • Roseville Public School Government · Primary above peers

Amenities in the suburb

Castle Cove Roseville
Cafes & restaurants 1 12
Parks & reserves 6 16
Childcare 1 10
GPs 1 2
Pharmacies 0 2
Banks & Bank@Post 0 1
Fuel stations 1 2
Waterways 1 7

Mobility

Castle Cove Roseville
Walkability score 54/100 80/100
Distance to Sydney 12.9 km
+7% vs other
 12 km
Drive time (normal traffic) 22 min 20 min
Public transport score 79/100
Bus
 94/100
Rail · Bus
Peak arrivals per hour 80.5
7-9am + 5-7pm
 300.8
7-9am + 5-7pm
Median peak wait 1 min
scheduled, not actual
 0 min
scheduled, not actual
Electric vehicle share 4.7%
postcode 2069
same for both
Rooftop solar per 100 dwellings 30
postcode 2069
same for both

How people get to work

Method of travel on census day 2021 — which fell during COVID restrictions, so working from home is inflated and every travel mode understated.

Castle Cove Roseville
Worked from Home 62.5% / 64.3%
Castle Cove — Worked from Home: 62.5% Roseville — Worked from Home: 64.3%
Car (driver) 30.9% / 26.1%
Castle Cove — Car (driver): 30.9% Roseville — Car (driver): 26.1%
Train 1.3% / 4.3%
Castle Cove — Train: 1.3% Roseville — Train: 4.3%
Car (passenger) 2.3% / 2.0%
Castle Cove — Car (passenger): 2.3% Roseville — Car (passenger): 2.0%
Walked Only 1.6% / 1.9%
Castle Cove — Walked Only: 1.6% Roseville — Walked Only: 1.9%

Bars are drawn against the largest share shown (64.3%).

Setting

Castle Cove Roseville
Elevation 77 m
above sea level, at the suburb centre
 87 m
above sea level, at the suburb centre
Distance to the ocean 4.0 km
1.0 km to a named beach
 6.7 km
4.0 km to a named beach

NBN connectivity

Castle Cove Roseville
Connectivity score 89/100 84/100
Most common technology Fibre to the premises
same for both
Full-fibre (FTTP) share 52%
1,030 premises
 35%
4,339 premises

Climate

Castle Cove Roseville
Annual rainfall 1,176 mm
same for both
Summer max (Jan) —
same for both
Winter min (Jul) —
same for both

Air quality (annual mean)

Castle Cove Roseville
PM2.5 5.4 µg/m³
same for both
PM10 14.2 µg/m³
same for both
NO₂ 0.23 pphm
same for both

Council rates

Castle Cove Roseville
Average residential rate $1,275/yr $1,626/yr
Council Willoughby Ku-ring-gai

Federal electorate

Castle Cove Roseville
Division Bradfield
same for both
Member Nicolette Boele
same for both
Party Independent
same for both

First Home Owner Grant

Castle Cove Roseville
Grant amount $10,000
same for both
Property price cap $600,000
same for both
Eligibility New
same for both

Tags

Castle Cove

Large Blocks Luxury Middle-Ring Parks Professionals River

Roseville

Easy Commute Middle-Ring Parks Professionals River Transport Hub

More comparisons

Other comparisons with Castle Cove

Castle Cove vs Chatswood Castle Cove vs Roseville Chase Castle Cove vs Middle Cove

Other comparisons with Roseville

Roseville vs Chatswood Roseville vs Lindfield Roseville vs East Lindfield Roseville vs Roseville Chase Roseville vs Chatswood West
Full data on Castle Cove Full data on Roseville
Unlock full address-level data — $29/month

Information shown is provided as-is from Australian government and commercial data sources.
Always verify with the relevant authority before making property decisions.
See Data Sources and How We Calculate for details.

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