Seacombe Heights vs O'halloran Hill

In both, the large majority of households own their home and the large majority of homes are detached houses. In Seacombe Heights, about half of households are couple families. Houses cost more in Seacombe Heights: a median of $1.08 million, against $860,000 in O'Halloran Hill, and rent is higher there too. Seacombe Heights is closer to the city centre: 15 km, against 17.9 km. On these figures, Seacombe Heights tends to suit couples, while O'Halloran Hill suits buyers on a tighter budget.

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

O'Halloran Hill

ahead on 2 of the 6 things we measure here

  • has more parks and reserves (6 vs 1)
  • has more schools rated above their peers (1 vs 0)
  • But Seacombe Heights carries lower crime risk (26/100 vs 65/100)

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

First-home buyers

O'Halloran Hill

ahead on the one thing that separates them

  • has cheaper houses ($860,150 vs $1,076,000)

Weighs house prices and mortgage stress.

Renters

O'Halloran Hill

ahead on the one thing that separates them

  • has cheaper rent ($350/wk vs $380/wk)

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

Commuting to the city

Seacombe Heights

ahead on 2 of the 4 things we measure here

  • is more walkable (70/100 vs 47/100)
  • sits closer to the CBD (15 km vs 17.9 km)

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

Downsizers and retirees

Seacombe Heights

ahead on 2 of the 5 things we measure here

  • carries lower crime risk (26/100 vs 65/100)
  • is more walkable (70/100 vs 47/100)
  • But O'Halloran Hill has more GPs (3 vs 0)

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

Investors

Too close to call

Nothing among the 1 things we measure here separates them by enough to be worth acting on.

Weighs population growth.

Where they sit

Seacombe Heights and O'halloran Hill drawn to the same scale. Both outlines are shown together, so the map answers whether they share a border and how their areas compare.

Seacombe Heights O'halloran Hill
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.

Seacombe Heights O'halloran Hill
Walkability 70 / 47
Seacombe Heights — Walkability: 70/100 O'halloran Hill — Walkability: 47/100
Safety 74 / 35
Seacombe Heights — Safety: 74/100 O'halloran Hill — Safety: 35/100
Low fire risk 100 / 60
Seacombe Heights — Low fire risk: 100/100 O'halloran Hill — Low fire risk: 60/100
Low flood risk 39 / 89
Seacombe Heights — Low flood risk: 39/100 O'halloran Hill — Low flood risk: 89/100

Demographics

O'Halloran Hill has more residents (2,722 vs 1,549); Seacombe Heights has higher household incomes ($99,684 vs $81,016).

Seacombe Heights O'halloran Hill
Population 1,549 2,722
+76% vs other
Population trend (2016 → 2021) +4.2% +2.4%
Median age 40
same for both
Median household income $99,684/yr
+19% vs other
 $81,016/yr
Median weekly rent $380/wk
+8% vs other
 $350/wk

Age profile

Share of residents in each band, 2021 Census.

Seacombe Heights O'halloran Hill
0-4 6.2% / 5.6%
Seacombe Heights — 0-4: 6.2% O'halloran Hill — 0-4: 5.6%
5-14 12.7% / 12.5%
Seacombe Heights — 5-14: 12.7% O'halloran Hill — 5-14: 12.5%
15-19 6.2% / 4.7%
Seacombe Heights — 15-19: 6.2% O'halloran Hill — 15-19: 4.7%
20-24 4.5% / 5.2%
Seacombe Heights — 20-24: 4.5% O'halloran Hill — 20-24: 5.2%
25-34 12.4% / 14.8%
Seacombe Heights — 25-34: 12.4% O'halloran Hill — 25-34: 14.8%
35-44 14.0% / 14.6%
Seacombe Heights — 35-44: 14.0% O'halloran Hill — 35-44: 14.6%
45-54 14.4% / 12.3%
Seacombe Heights — 45-54: 14.4% O'halloran Hill — 45-54: 12.3%
55-64 10.8% / 11.6%
Seacombe Heights — 55-64: 10.8% O'halloran Hill — 55-64: 11.6%
65-74 9.7% / 11.0%
Seacombe Heights — 65-74: 9.7% O'halloran Hill — 65-74: 11.0%
75-84 7.6% / 7.0%
Seacombe Heights — 75-84: 7.6% O'halloran Hill — 75-84: 7.0%
85+ 1.9% / 0.8%
Seacombe Heights — 85+: 1.9% O'halloran Hill — 85+: 0.8%

Bars are drawn against the largest share shown (14.8%).

Who lives together

Household composition, 2021 Census.

Seacombe Heights 54.5% couple families
Seacombe Heights — Couple Families: 54.5% Seacombe Heights — Lone Person: 26.5% Seacombe Heights — One Parent Families: 11.8% Seacombe Heights — Group Household: 4.6% Seacombe Heights — Other Families: 2.6%
O'halloran Hill 44.1% couple families
O'halloran Hill — Couple Families: 44.1% O'halloran Hill — Lone Person: 32.3% O'halloran Hill — One Parent Families: 19.0% O'halloran Hill — Group Household: 3.4% O'halloran Hill — Other Families: 1.1%
Couple Families Lone Person One Parent Families Group Household Other Families

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

Seacombe Heights 13.4% renting
Seacombe Heights — Owned Outright: 37.4% Seacombe Heights — Mortgage: 49.2% Seacombe Heights — Renting: 13.4%
O'halloran Hill 18.2% renting
O'halloran Hill — Owned Outright: 33.3% O'halloran Hill — Mortgage: 48.5% O'halloran Hill — Renting: 18.2%
Owned outright Mortgage Renting

Qualifications

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

Seacombe Heights O'halloran Hill
Certificate III & IV 15.4% / 19.2%
Seacombe Heights — Certificate III & IV: 15.4% O'halloran Hill — Certificate III & IV: 19.2%
Bachelor Degree 16.1% / 12.7%
Seacombe Heights — Bachelor Degree: 16.1% O'halloran Hill — Bachelor Degree: 12.7%
Advanced Diploma / Diploma 7.8% / 8.7%
Seacombe Heights — Advanced Diploma / Diploma: 7.8% O'halloran Hill — Advanced Diploma / Diploma: 8.7%
Postgraduate Degree 5.3% / 3.1%
Seacombe Heights — Postgraduate Degree: 5.3% O'halloran Hill — Postgraduate Degree: 3.1%
Graduate Diploma / Certificate 1.7% / 1.9%
Seacombe Heights — Graduate Diploma / Certificate: 1.7% O'halloran Hill — Graduate Diploma / Certificate: 1.9%

Bars are drawn against the largest share shown (19.2%).

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.

Seacombe Heights O'halloran Hill
England 7.1% / 7.5%
Seacombe Heights — England: 7.1% O'halloran Hill — England: 7.5%
India 3.2% / 0.8%
Seacombe Heights — India: 3.2% O'halloran Hill — India: 0.8%
China 1.9% / 0.6%
Seacombe Heights — China: 1.9% O'halloran Hill — China: 0.6%
South Africa 1.0% / 0.7%
Seacombe Heights — South Africa: 1.0% O'halloran Hill — South Africa: 0.7%
Greece 1.2% / —
Seacombe Heights — Greece: 1.2% O'halloran Hill — Greece: not among its largest
New Zealand — / 1.0%
Seacombe Heights — New Zealand: not among its largest O'halloran Hill — New Zealand: 1.0%
Scotland — / 1.0%
Seacombe Heights — Scotland: not among its largest O'halloran Hill — Scotland: 1.0%

Bars are drawn against the largest share shown (7.5%).

What people live in

Occupied private dwellings by structure, 2021 Census.

Seacombe Heights 98.6% houses
Seacombe Heights — Houses: 98.6% Seacombe Heights — Townhouses: 2.3% Seacombe Heights — Flats / Apartments: 0.0%
O'halloran Hill 91.5% houses
O'halloran Hill — Houses: 91.5% O'halloran Hill — Townhouses: 8.1% O'halloran Hill — Flats / Apartments: 0.4%
Houses Townhouses Flats / Apartments

Property market

Seacombe Heights O'halloran Hill
Median house price $1,076,000 $860,150
Median unit price — $720,000
Median land price —
same for both
Typical days to sell (houses) 24 days
from 14 sales
 12 days
from 23 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.

Seacombe Heights O'halloran Hill
3 bed $990K / $857K
Seacombe Heights — 3 bed: $990K (18 sales) O'halloran Hill — 3 bed: $857K (31 sales)

18 vs 31 sales

4 bed $1.25M / $968K
Seacombe Heights — 4 bed: $1.25M (14 sales) O'halloran Hill — 4 bed: $968K (9 sales)

14 vs 9 sales

Zoning mix

O'Halloran Hill has more land zoned for conservation (78% vs 4%).

Seacombe Heights O'halloran Hill
Residential 96% 18%
Environmental 4% 78%
Rural and farming 0% 3%
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

Seacombe Heights O'halloran Hill
New dwellings approved 809
across Marion
same for both
Approvals change year on year -31%
same for both

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.

Seacombe Heights O'halloran Hill
Houses — 3.8%
$638/wk on $870K
Units —
same for both

Ranking within SA

Seacombe Heights O'halloran Hill
House price Higher than 60% of SA Higher than 24% of SA
Income Higher than 79% of SA Higher than 55% of SA
Schools —
same for both
Walkability Higher than 88% of SA Higher than 80% of SA
Affordability Higher than 62% of SA Higher than 79% of SA
EV adoption Higher than 81% of SA Higher than 67% of SA
NBN connectivity Higher than 85% of SA Higher than 80% of SA
Rental yield (houses) — Higher than 43% of SA

Liveability

Seacombe Heights is more walkable (70 vs 47); Seacombe Heights scores higher overall (71 vs 52).

Seacombe Heights O'halloran Hill
Grade A B
Score 71/100 52/100
Socio-economic band advantaged area
decile 8/10
 mid-range socio-economic
decile 6/10

Risk profile

O'Halloran Hill carries more bushfire risk (40 vs 0); Seacombe Heights carries more flood risk (61 vs 11).

Seacombe Heights O'halloran Hill
Bushfire None
0/100
 Moderate
40/100
Crime Low
26/100
 Moderate
65/100
Flood Moderate
61/100
 Low
11/100
Coastal erosion None
0/100
same for both
Aircraft noise None
0/100
same for both
Industrial facilities nearby 4
within 5 km
 3
within 5 km

Schools

Seacombe Heights O'halloran Hill
Inside the suburb 1
same for both
Rated above peers 0 1
Rated at peers 1 0
Rated below peers 0
same for both
Universities within 10 km 2
Bedford Park, 2.4 km
 2
Bedford Park, 4.0 km
Full-time students aged 15–24 2.5% 1.7%

Schools in Seacombe Heights

  • Seaview High School Government · Secondary at peers

Schools in O'halloran Hill

  • IQRA College Independent · Combined above peers

Amenities in the suburb

Seacombe Heights O'halloran Hill
Supermarkets 0 1
Cafes & restaurants 0 4
Parks & reserves 1 6
Childcare 1 2
GPs 0 3
Pharmacies 0 1
Banks & Bank@Post 0 1
Fuel stations 0 2

Mobility

O'Halloran Hill sits further from the CBD (17.9 km vs 15 km).

Seacombe Heights O'halloran Hill
Walkability score 70/100 47/100
Distance to Adelaide 15 km 17.9 km
+19% vs other
Drive time (normal traffic) 22 min 24 min
Public transport score 50/100
Bus
 79/100
Bus
Peak arrivals per hour 11.5
7-9am + 5-7pm
 129.5
7-9am + 5-7pm
Median peak wait 1 min
scheduled, not actual
 0 min
scheduled, not actual
Electric vehicle share 1.2%
postcode 5047
 0.7%
postcode 5158
Rooftop solar per 100 dwellings 54
postcode 5047
 74
postcode 5158

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.

Seacombe Heights O'halloran Hill
Car (driver) 76.9% / 77.4%
Seacombe Heights — Car (driver): 76.9% O'halloran Hill — Car (driver): 77.4%
Worked from Home 12.2% / 11.1%
Seacombe Heights — Worked from Home: 12.2% O'halloran Hill — Worked from Home: 11.1%
Car (passenger) 4.2% / 4.6%
Seacombe Heights — Car (passenger): 4.2% O'halloran Hill — Car (passenger): 4.6%
Train 4.2% / 2.2%
Seacombe Heights — Train: 4.2% O'halloran Hill — Train: 2.2%
Bus 1.5% / 3.6%
Seacombe Heights — Bus: 1.5% O'halloran Hill — Bus: 3.6%

Bars are drawn against the largest share shown (77.4%).

Setting

Seacombe Heights O'halloran Hill
Elevation 92 m
above sea level, at the suburb centre
 189 m
above sea level, at the suburb centre
Distance to the ocean 2.7 km 4.1 km

NBN connectivity

Seacombe Heights O'halloran Hill
Connectivity score 75/100 67/100
Most common technology Hybrid fibre-coaxial Fibre to the node
Full-fibre (FTTP) share 0%
625 premises
 40%
1,262 premises

Climate

Seacombe Heights O'halloran Hill
Annual rainfall 394 mm
same for both
Summer max (Jan) 28.1°C
same for both
Winter min (Jul) 7.8°C
same for both

Air quality (annual mean)

Seacombe Heights O'halloran Hill
PM2.5 —
same for both
PM10 19.5 µg/m³
same for both
NO₂ 0.34 pphm
same for both

Council rates

Seacombe Heights O'halloran Hill
Average residential rate $1,782/yr
same for both
Council Marion
same for both

Federal electorate

Seacombe Heights O'halloran Hill
Division Boothby Kingston
Member Louise Miller-Frost Amanda Rishworth
Party Australian Labor Party
same for both

First Home Owner Grant

Seacombe Heights O'halloran Hill
Grant amount $15,000
same for both
Property price cap —
same for both
Eligibility New
same for both

Tags

Seacombe Heights

Coastal Middle-Ring Parks Quiet

O'halloran Hill

Acreage Middle-Ring Quiet

More comparisons

Other comparisons with Seacombe Heights

Seacombe Heights vs Seacombe Gardens Seacombe Heights vs Dover Gardens Seacombe Heights vs Sturt Seacombe Heights vs Seaview Downs Seacombe Heights vs Darlington

Other comparisons with O'halloran Hill

O'halloran Hill vs Happy Valley O'halloran Hill vs Flagstaff Hill O'halloran Hill vs Trott Park O'halloran Hill vs Seaview Downs O'halloran Hill vs Darlington
Full data on Seacombe Heights Full data on O'halloran Hill
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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