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Octagonal Ave, Castle Hill NSW 2154

Street

Street Summary

Living on Octagonal Ave, Castle Hill NSW 2154, you are on a local road where 18 homes sit level with the street. The street is entirely house stock with a 16.7% turnover rate over the past 5 years. There are insufficient recent house sales to calculate a reliable comparison against the suburb, so buyers should compare recent sales of individual homes on the street against nearby comparable properties.


PART 1
Street Profile

Property Type Mix

The mix of houses and apartments (units) that make up the Octagonal Ave, Castle Hill NSW 2154 property market.

Houses vs Apartments18 total lots
100%
Houses (100%)
Apartments (0%)
Townhouses/Villas/Unclassified (0%)

PART 2
Houses

"Houses" in this report includes detached houses, duplexes, and terraces.

Land Topography

How house lots on Octagonal Ave, Castle Hill NSW 2154 sit relative to street level — topography that affects drainage, flood risk, privacy, and build cost. Statistics are calculated from properties with available data.

High-side vs low-side house lots
Flat
18 lots
High-side (1m above)
Flat
Low-side (1m below)

Risks &Overlays

See which key planning overlays and environmental risks affect this street before you buy.

Heritage
0 houses affected
Bushfire
0 houses affected
Flood
0 houses affected
High voltage power line
0 houses affected

Street Sales - Houses

Actual house sales on Octagonal Ave, Castle Hill NSW 2154 over the past 5 years, plotted against the Castle Hill NSW 2154 median house price trend over the same period.

Street sales vs suburb median
Street SalesSuburb Median Price
$0$1.3M$2.5M$3.8M$5.0MOct 21June 23Feb 25Oct 26$2.1M · 2022$2.3M · 2023$2.5M · 2024$2.5M · 2025$2.5M · 2026$2.6M · 2022-08-30 · 14 OCTAGONAL AVE, CASTLE HILL NSW 2154$2.3M · 2025-05-09 · 17 OCTAGONAL AVE, CASTLE HILL NSW 2154$3.1M · 2024-06-27 · 9 OCTAGONAL AVE, CASTLE HILL NSW 2154
Turnover rate16.7%Past 5 years

PART 3
Apartments

Street Sales - Apartments

Actual apartment (unit) sales on Octagonal Ave, Castle Hill NSW 2154 over the past 5 years, plotted against the Castle Hill NSW 2154 median apartment price trend over the same period.

Street sales vs suburb median
Suburb Median Price
$0$250k$500k$750k$1.0MOct 21June 23Feb 25Oct 26$880k · 2022$930k · 2023$930k · 2024$963k · 2025$971k · 2026
Apartment sales0Past 12 months
Turnover rate0%Past 5 years

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Living in Octagonal Ave, Castle Hill NSW 2154 : Street Profile & FAQs

Common questions about living on and buying property on Octagonal Ave, Castle Hill NSW 2154 — lifestyle, transport, and the local housing market.

Note: Data is sourced from the Australian Bureau of Statistics (ABS) 2021 Census data and knest.ai internal statistical data.

Is Octagonal Ave an expensive or affordable street relative to Castle Hill?

There are insufficient recent house sales on Octagonal Ave to calculate a reliable premium or discount against the Castle Hill average. Buyers should compare recent sales of individual homes on the street against nearby comparable properties to gauge current market positioning.

What are the risk and overlay factors on Octagonal Ave?

There are no bushfire, heritage, or flood overlay classifications on Octagonal Ave. All 18 homes are recommended for a flood check, while 18 properties fall under other flood classifications, meaning no flood risk has been identified or they have not been mapped. High-voltage powerline proximity does not affect any homes on the street.

Are properties on Octagonal Ave mostly on high, level or low ground?

18 homes sit level with the street. This means the site height of every property on Octagonal Ave is within one metre of the street centreline. Different site heights can influence site characteristics, so buyers should assess the specific property rather than relying on the street average.

What type of road is Octagonal Ave?

Octagonal Ave is a local road. Local roads generally serve nearby residents and connect directly to collector or arterial roads. This classification typically means the street is designed for local access rather than through traffic, though actual traffic levels and noise depend on specific conditions.

Is Octagonal Ave mostly houses or apartments?

Octagonal Ave has 18 residential properties, and 100% of the stock consists of houses. There are no apartments on the street. This means the entire residential character of Octagonal Ave is defined by detached houses, duplexes, and terraces.

What are the major apartment developments on Octagonal Ave?

No major apartment developments are recorded on Octagonal Ave. The street consists entirely of individual residential properties, so there are no large-scale apartment complexes or high-density housing projects to consider.

How many properties have sold on Octagonal Ave?

0 houses and 0 apartments have sold on Octagonal Ave in the past 12 months. The 5-year turnover rate for houses is 16.7%, meaning 16.7% of the properties changed ownership during the past five years. Turnover data for apartments is not available.

Is Octagonal Ave a good street to buy property on?

Octagonal Ave aligns with buyers seeking detached houses on a local road. The street offers a consistent level-ground profile and no bushfire or heritage overlays, though all homes require a flood check. The low turnover and lack of recent sales indicate a quiet market, which may suit buyers prioritising stability over quick resale activity.