Maddington is a mixed-use suburb sitting approximately 20 kilometres south-east of the Perth CBD, governed by the City of Gosnells and served by its own train station on the Armadale line. Its SEIFA IRSAD score of 901 places it in decile 2 of 10 nationally and at the 10th percentile within Western Australia, firmly in the disadvantaged band. That reading is 99 points below the national mean of 1000, a gap wide enough to register as a primary signal across three of PropertyRanker's twelve scoring criteria. Investors should treat this number as a structural starting point, not a verdict.
ABS 2021 IRSAD release. Score 901 (national mean = 1000).
A SEIFA IRSAD score of 901 reflects a concentration of households with below-average incomes, higher rates of unemployment, and lower educational attainment relative to the national distribution. For PropertyRanker's model, this feeds directly into three criteria. On economic_strength, the score signals constrained local spending capacity and a tenant base that is more sensitive to rent increases or economic shocks. On hazard_risk, lower-SEIFA suburbs tend to carry higher rates of property crime and deferred maintenance in the surrounding stock, both of which affect insurance costs and vacancy cycles. On entry_point_risk, the same score that signals affordability also signals that demand drivers are narrower: the suburb is less likely to attract the owner-occupier upgrader cohort that typically compresses yields and lifts capital values in middle-ring markets.
None of this makes Maddington uninvestable. The suburb's position on the Armadale rail line, its access to Albany, Roe, and Tonkin Highways, and its established retail and industrial employment base are structural positives that a postcode-level SEIFA score cannot fully capture. The affordability of entry prices relative to inner Perth means gross yields can sit comfortably in the range that suits PropertyRanker's High Yield strategy (anchored around 6 percent) or even the Regional strategy (anchored around 7 percent). Capital Growth and Balanced strategies, which depend on stronger owner-occupier demand and tighter vacancy, face a harder case here given the socioeconomic profile. The key discipline is recognising that a low SEIFA score compresses the margin for error: a poorly selected or poorly managed asset in this postcode carries more downside than the same asset in a higher-decile suburb.
Maddington's house market is recording strong price growth, with YIP/CoreLogic data to April 2026 showing a median house price of $728,000 and 18.37% annual capital growth across 238 sales, while propertyvalue.com.au (CoreLogic) records a median of $592K with vendor discounting of just -4.0% and an average of 10 days on market. htag.com.au reports a vacancy rate of 1.0% and stock on market of 0.38%, pointing to tight supply conditions underpinning the price lift. Days on market are extremely short across all sources (10-12 days), vendors are holding firm on price, and vacancy is low, placing the suburb in a warming market band.
Vacancy sits at a low 1.0% with minimal stock on market (0.38%), days on market are extremely short at 10-12 days, and vendor discounting is a tight -4.0%, with two of three directional signals clearly supportive of a warming classification.
Sources: Maddington WA 6109 Suburb Profile & Property Report (2026-08-03); Maddington House Prices & Property Trends (2024-01-01); Maddington WA 6109 Property Market and House Prices 2026 (2026-09-01); Maddington Property Market and Trends (2026-07-22); Maddington Suburb Profile - REIWA (2026-09-01) · Refreshed 14 Sep 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 2 shown above gives a listing in Maddington a softer starting line on economic strength, though often a firmer one on entry-price risk, since less advantaged postcodes usually carry lower 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 tends to make the Yield (6% anchor) and Regional (7% anchor) strategies more reachable, because a lower entry price lifts the gross yield a listing can achieve, while a Growth result usually depends on a specific catalyst such as an infrastructure or renewal pipeline.
Read the scoring guide for the full criteria list and how the verdict thresholds work.
SEIFA is a postcode-level read. The fastest sanity check on any single decile reading is to compare it against the suburbs that surround it.
Because SEIFA operates at the postcode level, it cannot distinguish a well-maintained freehold house on a quiet residential street from a strata unit adjacent to the industrial precinct along Albany Highway. Before committing to any listing in 6109, investors should verify the current SQM vacancy rate for the postcode and compare it against the Perth metro average, since elevated vacancy amplifies the income risk that a low SEIFA score already flags. Body corporate health matters for any strata title: check the sinking fund balance and any outstanding special levies. Flood and overlay status should be confirmed through the City of Gosnells planning portal, as parts of the suburb sit near the Canning River catchment. Finally, price the specific property against recent comparable sales in the immediate street, not the broader suburb median, because value dispersion inside a low-SEIFA postcode is typically wide. Run the specific listing through PropertyRanker to receive a score that accounts for all of these factors alongside the postcode-level SEIFA signal.
A SEIFA IRSAD score of 901, placing Maddington in decile 2 nationally and at the 10th percentile within Western Australia, is a structural caution flag, not an automatic disqualifier. What it signals is a narrower margin for error: a poorly selected or poorly managed asset here carries more downside than an equivalent asset in a higher-decile suburb. PropertyRanker treats the score as a starting point for analysis across three of its twelve criteria, and investors should do the same.
The socioeconomic profile of Maddington, sitting 99 points below the national SEIFA mean, makes it a difficult case for the Capital Growth strategy (anchored around 3.5 percent gross yield) or the Balanced strategy, both of which depend on stronger owner-occupier demand and tighter vacancy than a decile 2 suburb typically supports. The High Yield strategy (anchored around 6 percent) and the Regional strategy (anchored around 7 percent) are more consistent with the affordability-driven gross yields that Maddington's entry price range tends to produce. Score the specific listing on PropertyRanker to see which strategy threshold a given property actually clears.
PropertyRanker's hazard_risk criterion is directly influenced by Maddington's low SEIFA reading, and crime data for the suburb is consistent with that signal: Maddington sits in the 17th percentile for safety across Western Australia, with theft and property damage among the most recorded offence categories, factors that bear directly on insurance costs and vacancy cycles. On economic_strength, the score reflects a tenant base that is more sensitive to rent increases or economic shocks than the Perth metro average. On entry_point_risk, the owner-occupier upgrader cohort that typically compresses yields in middle-ring markets is less active here, which limits one of the key mechanisms for capital value growth.
Maddington station is a confirmed stop on the Transperth Armadale line, and the station was rebuilt as part of the METRONET Armadale Line Transformation program, which modernised the outer section of the line including new platforms and improved accessibility. Rail access is a structural positive that a postcode-level SEIFA score cannot fully capture, and PropertyRanker treats it as a locational amenity that can partially offset weak socioeconomic signals. That said, connectivity alone does not override a decile 2 SEIFA reading; it is one factor among twelve that the model weighs.
PropertyRanker scores each listing across twelve criteria, three of which draw directly on the SEIFA IRSAD reading for postcode 6109: economic_strength, hazard_risk, and entry_point_risk all register the decile 2, raw score 901 signal. The remaining criteria incorporate listing-level data, so two properties on the same street in Maddington can score differently depending on asking price, configuration, and yield. Because specific yield, vacancy, and price figures change frequently, PropertyRanker calculates those live at the listing level rather than publishing suburb-wide medians.
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