Aldinga Beach, SA 5173
City Of Onkaparinga, South Australia
Good to Know
Aldinga Beach, SA 5173 is a tightly-held house market in the City of Onkaparinga area, currently positioned as a long-hold capital-growth submarket. Located about 45 km south of Adelaide CBD, Aldinga Beach is home to roughly 10,667 residents across 5,751 dwellings and is reporting a vacancy rate of 1.33%.
According to HtAG Analytics, Aldinga Beach is exhibiting strong demand with constrained supply. Stock on Market sits at 0.18% and Inventory at 0.71 months — well below the ~3-month balanced-market threshold — driving +11.6% YoY price growth and +6.3% YoY rent growth.
What the market data is signalling
Aldinga Beach shows capital growth leading the cycle: 1-year price growth is +11.6% while 1-year rent growth is +6.3%. The suburb’s gross yield is 3.12% and median weekly rent is $592, so rental returns are above the 3% minimum recommended level but remain secondary to price momentum.
Low supply readings — Stock on Market 0.18% and Inventory 0.71 months — alongside a neutral vacancy of 1.33% point to a seller-favouring market with limited listings and upward price pressure. See the Markets in the Moment (MiM™) heatmap for a visual of where this momentum sits nationally.
Who lives in Aldinga Beach — and why it matters for investors
Aldinga Beach’s IRSAD is 946, above the cited minimum benchmark of 927, indicating relatively stronger socio‑economic positioning that can support long-run capital stability; read more in our IRSAD Crossover study. The renter/owner split is 28.0% (neutral), suggesting a balanced tenure profile that can dampen short-term volatility.
The local housing mix is heavily house-dominant — Units/Houses ratio is 3.0% (opportune) — which matters if your strategy targets house-based price growth or low-competition unit plays. Note affordability is stretched: Affordability index is 63 years, which can limit new owner-occupier entry and shape future demand patterns.
Why suburb-level data matters for Aldinga Beach
Council-level averages can hide tightly-held pockets like Aldinga Beach. Base your decisions on this suburb’s own metrics: typical house price $985,965, gross yield 3.12%, Stock on Market 0.18%, Inventory 0.71 months and median days-on-market 40 days. These figures tell a different supply/demand story than a broad LGA average would — for methodology detail see LGA vs Suburb research.
For a detailed, downloadable briefing see the full Aldinga Beach data guide.
What's behind the RCS™ score of 84
The HtAG RCS™ score of 84 bundles three independent dimensions — risk minimisation, capital-growth potential and cashflow resilience — into one composite rating so investors can match markets to strategy. Each sub-score matters differently depending on whether you prioritise safety, growth or yield; learn more about how the RCS™ is built.
open Aldinga Beach in HtAG Copilot to explore sub-score detail and scenario testing.
Forward signals to watch
vacancy rate — currently 1.33%: a sustained vacancy in the 1–3.5% band implies a balanced rental market that supports steady rent growth rather than large swings.
building approvals ratio — currently 0.66%: this neutral-level pipeline suggests moderate new-supply risk; a sharp rise would relieve price pressure, while a drop would tighten supply further.
Adelaide cycle phase: a city-wide shift into an upswing would likely amplify Aldinga Beach’s local momentum and accelerate price gains; conversely, a broader slowdown would temper demand and slow capital growth locally.
Does this area meet your investment goals?
Get full accessCritical to know
RCS Breakdown
Aldinga Beach's RCS™ headline is an overall signal — but it doesn't tell you why. The three sub-scores below reveal whether that score is earned through risk minimisation, capital growth, or cashflow — and which portfolio brief it fits.
starter
Investor
Pro
Critical to know
Market Trends
Aldinga Beach's headline values — $985K to buy and $591PW to rent, a 3.11% gross yield. Over the past decade, prices have moved 155.52% and rents 93.46% — the Yield series shows whether that gap is widening (price outpacing rent, yield compressing) or closing.
$985K is today. The 10-year trajectory reveals whether that's the top of a run, the start of a new leg, or somewhere mid-cycle. Sign up to unlock the entire trend line.
$591PW today, with rent growth at (+6.27% YoY) compared to price growth (+11.6%). That spread determines yield is expanding or compressing across the next cycle. Sign up to unlock the entire trend line.
Where is Aldinga Beach in its cycle - and is the 3.11% yield holding?
Cycle phase tells you whether you're buying near the bottom (room to run) or top (compression ahead). Yield trajectory tells you whether cashflow is durable or being eroded — the single most important question for a long-hold thesis.
Cycle Phase
Cycle Position
Yield Trajectory
Rent vs Price Spread
Investor
Pro
Area Risks
Property data alone won't flag the structural risks that can erode a long-hold position. Bushfire overlays, flood-zone exposure, and economic concentration sit outside the price feed but determine whether your capital is insurable, defensible, and structurally protected. Unlock to see.
Are there hidden structural risks shaping Aldinga Beach's long-hold story?
Beyond the headline price, Aldinga Beach carries risk signals a median can't show — hazard exposure from bushfire and flood overlays, and how narrowly local employment leans on a handful of sectors (the concentration the EDI score quantifies). Together these separate insurable, defensible long-holds from those carrying tail-risk that never surfaces in the headline number.
MADI Risk
EDI Risk
Bushfire
Flood
Investor
Pro
Critical to know
Supply & Demand
Aldinga Beach's headline numbers show where the market is today. The two cards below answer where it's heading. Direction is what separates a buy from a wait.
Is housing supply tightening or building up?
Stock on Market is one number — the trend is what matters. SoM, inventory, building approvals and hold period together reveal whether the market is starving for stock (price pressure up) or quietly building a pipeline (pressure down).
Stock on Market
Inventory
Building Approvals
Hold Period
Is buyer and renter demand heating up or cooling off?
Vacancy is one signal — the real question is whether demand is still building or quietly peaking. Days on market, vacancy, search index and clearance rate are the four pulse-points — when they diverge, they signal a turning point.
Days on Market
Vacancy Rate
Search Index
Clearance Rate
Investor
Pro
Critical to know
Fundamentals
Aldinga Beach can look solid on the surface — but the three layers below separate markets that genuinely hold value from ones that only look like they do.
Is Aldinga Beach genuinely stable - or just expensive?
IRSAD hints at affluence, but socio-economic strength alone doesn't guarantee resilience. Combined with the renter-to-owner balance and unit-to-house ratio, you get the three signals that separate a tightly-held submarket from one carrying hidden volatility.
IRSAD
Renter to Owner
Units to Houses
Where do Aldinga Beach prices go over the next 12 months?
Today's headline price is just a snapshot. Projected ROI and the volatility index tell you whether to commit capital now, wait for a softer entry, or rotate into a steadie submarket.
Projected Annual ROI
Volatility Index
Can you actually buy into Aldinga Beach - and exit cleanly?
Tightly-held areas reward long-hold investors but punish anyone who needs liquidity. Annual sales and rental volume reveal whether your capital can reposition — or sits structurally locked in.
Annual Sales Volume
Annual Rental Volume
Investor
Pro
Important to know
Education & Infrastructure
Aldinga Beach looks tightly-held and stable on the surface — but the three layers below separate areas that genuinely hold value from ones that only look like they do.
Does Aldinga Beach's school catchment + infrastructure pipeline justify the price?
School ranks anchor family demand and tenant quality. The active infrastructure pipeline shifts a suburb's price ceiling over the next 5–10 years. Together they tell you whether Aldinga Beach has structural support for the next leg of capital growth.
School Rank
Hospitals & Employment
Infrastructure Spend
Transport Projects
Investor
Pro
Full HtAG Intelligence
Aldinga Beach shows potential. The platform tells you whether it's the best fit for your portfolio.
Price and yield are only the surface. HtAG reads the forces underneath — supply tightening or loosening, demand heating or cooling, and the risks that move slowly but decide long-term growth. Together they show whether Aldinga Beach has the structural support for its next leg — or whether the numbers are running ahead of the fundamentals.
The total adult population (15 years or older) of Aldinga Beach 5173 SA is 8,442, with a median age of 39. Of those, 42.42% are married, 16.02% are divorced or separated, 36.53% are single and 5.09% are widowed.
The average household size is 2.5 people per dwelling, and the median household monthly income is estimated to be $6,212. The median monthly mortgage repayment for households in this suburb is $1,408 which is 22.67% of their earnings.
Source: ABS Census Data (2021)
Aldinga Beach is a picturesque coastal suburb located in the City of Onkaparinga in South Australia. The area is known for its glorious white sands and sparkling blue waters of the Gulf St Vincent.
With a laid-back atmosphere, Aldinga Beach boasts stunning views of the ocean with many popular attractions nearby. The stunning scenery, convenient access to the city and the tranquil atmosphere make Aldinga Beach a highly sought-after destination.
Along the shoreline of Aldinga Beach, visitors can explore the tranquil Aldinga Scrub Conservation Park, which is home to a variety of wildlife and plants. Other attractions in the area include the Silver Sands Beachfront Walk, Seacliff Beach and the excellent Aldinga Beach Restaurant and Bar.