Keysborough (3173) is a large residential suburb in Melbourne's outer south-east, sitting within the City of Greater Dandenong approximately 27 kilometres from the CBD. Its SEIFA IRSAD score of 999 places it almost exactly at the national mean of 1000, landing in decile 7 of 10 nationally and at the 56th percentile within Victoria. That reading classifies the suburb as advantaged, though only marginally above the midpoint, which is a meaningful distinction for investors calibrating risk. The score reflects a suburb that is neither a clear socioeconomic outlier in either direction nor a homogeneous one, given the internal diversity across Keysborough's distinct northern, central, and southern pockets.
ABS 2021 IRSAD release. Score 999 (national mean = 1000).
A SEIFA IRSAD score of 999 in decile 7 tells PropertyRanker's model that Keysborough carries moderate-to-solid economic strength at the postcode level. The suburb is not in the high-advantage tier that typically anchors a Capital Growth strategy, where PropertyRanker looks for gross yields around 3.5 percent alongside strong socioeconomic tailwinds. Equally, it is not in the lower deciles where a High Yield or Regional strategy (targeting 6 to 7 percent gross) might be warranted by a risk premium. The reading sits most naturally in the Balanced strategy band, where the model targets gross yields around 5 percent and accepts moderate socioeconomic positioning in exchange for a more accessible entry point relative to inner-ring suburbs.
Keysborough's internal geography matters here. The suburb is geographically divided into distinct pockets: established housing in the north built predominantly from the 1960s through the 1990s, larger residential and industrial development in the middle section, and semi-rural and market-garden land in the south. A single SEIFA score cannot distinguish between a 1970s brick veneer on a quiet northern street and a new-estate townhouse in the south. The postcode-level reading also cannot capture build quality, body corporate obligations, flood overlay exposure near Mordialloc Creek, or current vacancy conditions. Those variables move the needle on any individual listing far more than the macro SEIFA band alone. A strong SEIFA reading does not make a listing a buy, and a near-mean reading does not make one a pass. It is one of twelve signals in the PropertyRanker model, and it operates at the macro layer.
Keysborough houses recorded 12-month median price growth of 4.38% to approximately $1,002,000, with 317 house sales over the same period, according to yourinvestmentpropertymag.com.au (to May 2026). propertyvalue.com.au reports an average vendor discount of -3.2% and average days on market of 29 days, while heatmaps.com.au notes stock on market at a tight 0.34% of estimated dwelling stock as of October 2026, pointing to constrained supply conditions.
Anchor points pulled per refresh from publicly available suburb profiles. Approximate; not a moving average.
Days on market are shortening (down ~6.5% year-on-year per woodards.com.au) and vendor discounting is a modest -3.2% indicating vendors holding firm, while vacancy at 1.42% is stable, producing a net warming signal.
Sources: Keysborough, VIC 3173: Suburb Profile & Property Report (2026-05-01); Keysborough VIC 3173 Property Prices, Rent, Yield & Growth (2026-10-13); Keysborough House Prices & Property Trends (2026-10-01); Keysborough, VIC Property Market & House Prices (2026-10-01); Keysborough, VIC 3173 Property Market and House Prices 2026 (2026-10-01) · Refreshed 15 Oct 2026
PropertyRanker scores any Australian property against 12 criteria across three pillars: Growth, Cashflow, and Risk. SEIFA is a primary signal for economic strength and a supporting one for entry-price risk. It also informs the crime side of hazard risk, though physical overlays like flood, bushfire and coastal exposure, and recorded crime data where available, take priority there. The decile of 7 shown above gives a listing in Keysborough a stronger starting line on economic strength than the national median postcode, and a softer one on entry-price risk, since more advantaged postcodes usually carry higher entry prices.
On top of that, PropertyRanker chooses one of four strategies (Balanced, Growth, Yield, Regional) and applies a per-strategy yield anchor. The anchors are 3.5% for Growth, 5% for Balanced, 6% for Yield, and 7% for Regional. A postcode at this level of relative advantage tends to suit the Growth (3.5% anchor) and Balanced (5% anchor) strategies more readily than Yield (6%) or Regional (7%), because a higher entry price compresses the gross yield a listing can reach without a specific value-add.
Read the scoring guide for the full criteria list and how the verdict thresholds work.
Investors examining a specific listing in Keysborough should verify several things the SEIFA reading cannot see. First, check flood and planning overlay status, particularly for properties near Mordialloc Creek in the southern portion of the suburb, where semi-rural land can carry inundation risk. Second, confirm current SQM vacancy data for postcode 3173, since Keysborough's rental market can vary between the established northern streets and the newer southern estates. Third, for any strata or townhouse product, obtain body corporate financials and confirm the sinking fund is adequately provisioned. Fourth, price the listing against recent comparable sales rather than relying on suburb-wide medians, because the internal diversity across Keysborough's pockets means comparable selection is critical. Finally, score the specific listing in PropertyRanker to get a verdict that accounts for all twelve criteria, including current vacancy, overlay status, body corporate health, and pricing against recent comparable sales, none of which a postcode-level SEIFA reading can resolve.
Keysborough's SEIFA IRSAD score of 999 places it at the national mean and in decile 7 nationally, which PropertyRanker reads as moderate-to-solid economic strength at the postcode level. That macro signal is one of twelve criteria in the model, and it does not determine whether any specific listing is worth pursuing. The suburb's internal diversity across its northern, central, and southern pockets means individual listings can score very differently even within the same postcode frame.
A SEIFA decile 7 reading at near-national-mean positions Keysborough most naturally within PropertyRanker's Balanced strategy, which targets gross yields around 5 percent and accepts moderate socioeconomic positioning in exchange for a more accessible entry point than inner-ring suburbs. The Capital Growth strategy, which anchors around 3.5 percent gross yield, typically looks for higher-decile suburbs with stronger socioeconomic tailwinds. Whether a specific listing in Keysborough can actually meet the Balanced yield anchor depends on current asking price and achievable rent, so score the listing directly for a live reading.
The SEIFA reading flags no acute socioeconomic risk, sitting at decile 7 and near the national mean. However, the suburb's southern section borders Mordialloc Creek and includes semi-rural land that can carry flood overlay exposure, which is a hazard-risk variable PropertyRanker scores separately from SEIFA. The suburb also lacks direct rail access, relying on bus connections to nearby stations, which is a liveability factor that can affect rental demand and tenant quality depending on the specific street. Strata and townhouse product in the newer southern estates carries body corporate risk that requires direct verification.
PropertyRanker uses the SEIFA IRSAD reading as a primary input for three of its twelve scoring criteria: economic strength, hazard risk, and entry point risk. For Keysborough, the score of 999 in decile 7 contributes a moderate-to-positive signal across those three criteria. The remaining nine criteria draw on listing-specific data including current SQM vacancy for postcode 3173, flood and planning overlay status, body corporate health, and pricing against recent comparable sales, none of which the postcode-level SEIFA figure can capture.
Keysborough's confirmed neighbours include Springvale South (3172) to the north, Noble Park (3174) to the north-east, Dingley Village (3172) to the west, and Bangholme (3175) to the south. Each carries its own SEIFA profile, vacancy dynamics, and planning overlays that PropertyRanker scores independently. Comparing suburbs at the postcode level is a useful starting point, but the model's verdict on any specific listing depends on the full twelve-criteria score rather than a side-by-side SEIFA comparison alone.
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