Toowong (postcode 4066) is an inner-western suburb of Brisbane, situated roughly five kilometres from the CBD between the Brisbane River and the foothills of Mount Coot-tha, within the Brisbane City Council LGA. Its SEIFA IRSAD score of 1115 places it in the 10th national decile and at the 99th state percentile within Queensland, meaning it ranks among the most socioeconomically advantaged communities in the country. That reading sits 115 points above the national mean of 1000, a margin that is analytically significant rather than marginal. For investors, this number is a starting point for due diligence, not a conclusion.
ABS 2021 IRSAD release. Score 1115 (national mean = 1000).
A SEIFA IRSAD score of 1115 reflects a concentration of high household incomes, tertiary-educated residents, and low rates of economic disadvantage at the postcode level. In PropertyRanker's twelve-signal model, this reading feeds directly into three criteria: economic_strength (where high SEIFA supports the score), hazard_risk (where affluent, well-maintained precincts tend to carry lower systemic risk), and entry_point_risk (where the same affluence compresses gross yields and raises the price of entry). That third effect is the one investors most often underweight. Toowong carries a dense and mixed residential profile, with apartments, older Queenslander houses, and medium-density dwellings coexisting across a compact four-square-kilometre footprint. The suburb's youthful demographic, driven in part by proximity to the University of Queensland's St Lucia campus, sustains rental demand but also means the unit market is large and supply-sensitive. At the price points implied by a top-decile suburb, gross yields will typically align closer to PropertyRanker's Capital Growth strategy anchor of around 3.5 percent than to the Balanced (around 5 percent) or High Yield (around 6 percent) anchors. Investors targeting income from day one should model that yield gap carefully before committing. Importantly, a strong SEIFA reading does not make any individual listing a buy. A poorly oriented apartment in a high-vacancy building, or a house in a flood-affected pocket near the river, can score poorly inside the same postcode frame that produces this decile-10 result.
According to CoreLogic data published via yourinvestmentpropertymag.com.au (as of March 2026), Toowong houses recorded a median sale price of $1,620,000 with annual capital growth of 0.62% and 98 house sales over the past 12 months, while propertyvalue.com.au (Cotality/RP Data) reports 96 house sales at a $1.6M median, up 1.4% annually, with an average vendor discount of -9.0% and 19 days on market. OpenAgent (April 2026) cites a higher median of $1.89M with 12.5% house price growth, reflecting a divergence in methodology and sample period across sources; the Calibre Real Estate Spring 2024 market update recorded a median of $1,510,333, providing a useful prior-year anchor.
Anchor points pulled per refresh from publicly available suburb profiles. Approximate; not a moving average.
With a wide average vendor discount of -9.0% and near-flat annual price growth of 1.4%, vendors are discounting materially to transact; days on market at 19-22 days are moderate and stable, pointing to a cool rather than cold market overall.
Sources: Toowong QLD 4066 Suburb Profile & Property Report (2026-06-15); Toowong House Prices & Property Trends (2026-01-01); Toowong Property Market and Trends (2026-04-22); Toowong Spring 2024 Market Update (2024-09-06) · Refreshed 13 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 10 shown above gives a listing in Toowong 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.
Because SEIFA operates at the postcode level, it cannot see the variables that most directly affect a specific listing's investment outcome. Before drawing a conclusion on any Toowong property, investors should check the following. First, flood and overlay status: parts of Toowong sit in low-lying river-adjacent land, and Brisbane City Council flood mapping should be consulted for the specific lot, not the suburb in aggregate. Second, current SQM vacancy data for the postcode, given the suburb's large student and renter cohort, which can shift vacancy rates materially between semesters. Third, for units and townhouses, body corporate financials and the sinking fund balance, since older medium-density stock in inner Brisbane can carry deferred maintenance costs that compress net returns. Fourth, recent comparable sales to verify whether the asking price is consistent with the current market rather than a peak-cycle outlier. Run the specific listing through PropertyRanker to receive a verdict that accounts for all twelve signals, including the factors a postcode-level SEIFA reading cannot see.
A SEIFA IRSAD score of 1115, placing Toowong at the 99th state percentile, signals high household incomes, tertiary-educated residents, and low rates of economic disadvantage, all of which support PropertyRanker's economic_strength and hazard_risk criteria positively. The same reading compresses gross yields and raises the price of entry, which works against the entry_point_risk criterion. The data suggests a suburb with durable tenant demand and relative precinct stability, but that does not make every listing in postcode 4066 a sound investment; score the specific property to see how its individual characteristics interact with the postcode frame.
At the price points implied by a decile-10 suburb, gross yields in Toowong will typically trend closer to PropertyRanker's Capital Growth anchor of around 3.5 percent than to the Balanced (around 5 percent) or High Yield (around 6 percent) anchors. That alignment reflects the yield compression that comes with affluent, inner-city postcodes, and it means the Regional strategy anchor of around 7 percent is even further out of reach without unusual circumstances. Investors whose model depends on income from day one should carefully stress-test the yield gap before treating this suburb as a fit.
Two risks stand out in the analysis. First, Toowong's large and supply-sensitive unit market, driven partly by proximity to the University of Queensland's St Lucia campus, means a poorly positioned apartment in a high-vacancy building can score poorly even within this high-SEIFA postcode. Second, parts of the suburb sit near the Brisbane River and Toowong Creek, both of which have documented flood histories and are covered by Brisbane City Council flood modelling; properties in lower-lying pockets near Coronation Drive carry hazard exposure that a postcode-level SEIFA score cannot resolve, so the Brisbane City Council Flood Awareness Map should be consulted for each specific address.
PropertyRanker runs twelve signals across the scoring model, with Toowong's SEIFA IRSAD reading of 1115 feeding directly into three: economic_strength, hazard_risk, and entry_point_risk. The remaining signals draw on listing-level and property-level inputs, including dwelling type, building characteristics, and local supply conditions, so two properties on the same street can produce meaningfully different scores. Score the individual listing rather than relying on the suburb-level SEIFA result alone.
Toowong is served by its own railway station on the Queensland Rail Main Line, with CityCAT ferry access at the Regatta terminal and multiple bus routes connecting to the Brisbane CBD. Confirmed transit access of this depth is a factor that supports tenant demand and reduces vacancy risk, particularly for the large university-adjacent rental market. That said, proximity to a specific stop or terminal varies across the suburb's roughly four-square-kilometre footprint, so a listing's walkability to transit is one of the individual signals to verify when scoring a property here.
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