O'Sullivan Beach SA Property Investment

Onkaparinga · 5166

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Median House Price

$800K

As of 7 Nov 2026.

Rental Yield

N/A

Vacancy Rate

N/A

Median Weekly Rent

N/A

Median Unit Price

$627K

As of 7 Nov 2026.

Population (Census 2021)

1,844

O'Sullivan Beach Short-Term Rental Market

Short-stay estimate: run a brief

Price growth (5-yr, to Sep 2026)

16.5%/yr

houses, median sale price, annualised · 5-yr, to Sep 2026 · Source: Recorded sales medians

New dwellings approved

New dwellings approved, Onkaparinga council area, 12 months to Aug 2026: 1,374. Source: ABS Building Approvals, Australia (cat. 8731.0). This is the whole council area, not just O'Sullivan Beach.

Suburb Metric Thresholds

1 green2 yellow4 red

Population growth 2016–21, postcode 5166 (ABS Census)

-0.38 high impact

Median Household Income

1072 medium impact

Public Transport Score

6.1 medium impact

School Zone Quality

4.8 medium impact

Distance to CBD

24.11 medium impact

SEIFA Advantage/Disadvantage

1 medium impact

Owner Occupier Rate

68.4 medium impact

Macro Environment

Macro Indicators

Cash Rate

4.85%

▲ 0.25%

Cash rate 4.85% as at 2026-11-04 (effective date) · Source: RBA cash rate target · Credit data 2026-09

Socio-Economic Profile

Source: ABS Census 2021

SEIFA Index · Postcode 5166

Most disadvantagedLeast disadvantaged

Decile 2 of 10 — High disadvantage

Population (suburb)

1,844

Education (IEO)

1/10

Econ. Resources (IER)

1/10

Crime & Safety

Source: South Australia Police · 12 months to Jun 2026

Safety score

3.8/10

Offences per 1,000

52.1

Recorded offences

O'Sullivan Beach: score 1–10, relative to other SA suburbs (10 = lowest recorded offence rate per resident). Recorded offences, 12 months to Jun 2026 (suburb-level).

Source: South Australia Police, recorded offences, 12 months to Jun 2026. Population: ABS Census 2021 (SAL). Licensed under CC BY 3.0 AU. Dataset

Schools

In your catchment

Christies Beach High School

SecondaryGovernment

4.2/10

These are the government-school zones containing this suburb centroid. Specific addresses within the suburb may fall in different catchments — confirm with the school directly.

Nearby Suburbs

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Data sourced from ABS, state government property sales, and Airbnb market analytics. For informational purposes only — not financial advice.