Rouse Hill (postcode 2155) sits in the Hills District approximately 43 kilometres north-west of the Sydney CBD, straddling the local government areas of The Hills Shire and the City of Blacktown. On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, the suburb records a raw score of 1146 against a national mean of 1000, placing it in decile 10 of 10 nationally and at the 93rd percentile within New South Wales. That reading puts Rouse Hill among the most socio-economically advantaged postcodes in the country, reflecting a resident base dominated by higher-income households and young families. PropertyRanker treats this SEIFA result as a primary input into three of its twelve scoring criteria: economic_strength, hazard_risk, and entry_point_risk.
ABS 2021 IRSAD release. Score 1146 (national mean = 1000).
A decile 10 SEIFA score carries real analytical weight for investors. On the economic_strength criterion it signals a resident pool with above-average incomes, lower unemployment exposure, and stronger capacity to sustain rental payments through economic cycles. On hazard_risk and entry_point_risk, high-advantage postcodes tend to correlate with lower social-disorder risk and more stable pricing floors, though neither relationship is automatic or guaranteed at the individual listing level. Rouse Hill's macro story is reinforced by its infrastructure position: the Sydney Metro Northwest opened a station within the suburb in 2019, providing high-frequency rail access to Chatswood and the Sydney CBD, and the Rouse Hill Town Centre functions as a genuine retail and commercial hub for the broader north-west corridor. The suburb's demographic skew toward young families, with a median age of 34 and children under 15 making up roughly 21 percent of the population, supports sustained rental demand from owner-occupier-adjacent tenants. The investor caution here is on the supply side. Box Hill to the north is one of Sydney's largest active greenfield release areas, and ongoing medium-density development within the 2155 postcode itself means new stock continues to enter the market. A strong SEIFA reading does not neutralise oversupply risk at the product level, particularly for strata units near the town centre. The Capital Growth strategy, which anchors around a 3.5 percent gross yield, is the most natural strategy match for a suburb at this socio-economic tier, though individual listings with higher yield potential do exist and should be scored on their own merits.
CoreLogic data via yourinvestmentpropertymag.com.au (to February 2026) shows Rouse Hill houses recording a median sale price of $1,396,750, up 5.22% over the past 12 months, with 254 house sales transacted. propertyvalue.com.au reports an average vendor discount of -4.5% and average days on market of 37-40 days, while htag.com.au (July 2026) flags a vacancy rate of 1.62% for the suburb, though estate.sydney notes the broader Metro Northwest corridor including Rouse Hill has seen elevated rental vacancy of 3.5-5.0% due to a surge in new unit supply.
Vacancy is loosening due to a flood of new unit supply along the Metro Northwest corridor per estate.sydney (March 2026), while days on market and vendor discount show no clear directional shift, yielding a cool overall reading.
Sources: Rouse Hill NSW 2155 Suburb Profile & Property Report (2026-06-02); Rouse Hill House Prices & Property Trends (2026-01-01); Rouse Hill NSW 2155 Property Market and House Prices 2026 (2026-07-06); Rouse Hill NSW 2155 Established Suburb Profile (2025-01-01); Sydney Rental Vacancy Rate Analysis 2026 (2026-03-07) · Refreshed 22 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 Rouse Hill 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.
SEIFA operates at the postcode level and cannot see the variables that determine whether a specific listing is sound. Before drawing any conclusion from the decile 10 reading, an investor should verify the following for the actual property. First, check current SQM vacancy data for postcode 2155, because new supply from surrounding greenfield estates can push vacancy above the suburb's historical norm. Second, for any strata or townhouse product, obtain the body corporate financials and confirm the sinking fund is adequately provisioned, given the volume of recently completed medium-density stock in the area. Third, review flood and planning overlay status through the relevant council portal, as parts of the broader north-west growth corridor carry stormwater and overland flow constraints. Fourth, compare the asking price against recent comparable sales recorded by the NSW Valuer General to assess whether the listing is priced at, above, or below the current market. Score the specific listing in PropertyRanker to get a verdict that accounts for all twelve criteria, including the live signals that a postcode-level SEIFA reading cannot see.
The SEIFA data positions Rouse Hill as one of the most socio-economically advantaged postcodes in New South Wales, with a raw score of 1146 and a decile 10 national ranking, which supports PropertyRanker's economic_strength and entry_point_risk criteria. That macro signal is meaningful but it is not a verdict on any individual listing. A specific property in 2155 can score well or poorly depending on its product type, pricing relative to comparable sales, vacancy conditions, and strata health, so the SEIFA reading should be treated as a starting point rather than a conclusion.
A decile 10 SEIFA suburb in a major Sydney metro corridor tends to align most naturally with PropertyRanker's Capital Growth strategy, which anchors around a 3.5 percent gross yield, because high-advantage postcodes typically trade at price points that compress yield. Investors targeting the Balanced strategy (around 5 percent) or High Yield strategy (around 6 percent) should verify current asking rents against the listing price before assuming those thresholds are achievable in this postcode. Score the specific listing in PropertyRanker to see how it performs against each strategy's yield anchor using live data.
The primary risk to monitor is supply. Box Hill to the north is one of Sydney's largest active greenfield release areas, and medium-density development continues within the 2155 postcode itself near the town centre and metro station. New stock entering the market can soften rents and slow price growth even in a high-SEIFA suburb. Investors should also check stormwater and overland flow overlays for specific sites, and confirm body corporate sinking fund adequacy for any strata product, as a strong postcode-level SEIFA score does not protect against building-specific or product-specific risks.
PropertyRanker uses the SEIFA IRSAD reading as a primary input into three of its twelve scoring criteria: economic_strength, hazard_risk, and entry_point_risk. For Rouse Hill, the raw score of 1146 (national mean 1000, decile 10, 93rd percentile in NSW) feeds a positive signal into all three of those criteria. The remaining nine criteria draw on listing-level and live data including SQM vacancy rates, comparable sales pricing, flood and planning overlays, and strata financials, which is why two properties in the same postcode can receive materially different overall scores.
Rouse Hill shares postcode 2155 with Kellyville and Beaumont Hills, so those suburbs draw on the same SEIFA frame and similar infrastructure access via the Sydney Metro Northwest. Box Hill (2765) to the north is a large greenfield release area that is relevant context for supply risk across the whole corridor. The Ponds (2769) to the west has a comparable family demographic but sits in a different postcode and LGA boundary, so its SEIFA reading and scoring criteria should be checked separately in PropertyRanker rather than assumed to mirror Rouse Hill.
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