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Castle St, Blacktown NSW 2148

Street

Street Summary

Castle St, Blacktown NSW 2148 is a local road where most homes sit level with the street, with some properties below it. 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. The street is entirely residential houses, with no apartments. A portion of homes have been assessed with no flood risk identified, while others are in a flood check recommended area.


PART 1
Street Profile

Property Type Mix

The mix of houses and apartments (units) that make up the Castle St, Blacktown NSW 2148 property market.

Houses vs Apartments29 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 Castle St, Blacktown NSW 2148 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
FlatLow-side
20 lots
6 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 Castle St, Blacktown NSW 2148 over the past 5 years, plotted against the Blacktown NSW 2148 median house price trend over the same period.

Street sales vs suburb median
Street SalesSuburb Median Price
$0$500k$1.0M$1.5M$2.0MOct 21June 23Feb 25Oct 26$895k · 2022$947k · 2023$1M · 2024$1.1M · 2025$1.2M · 2026$1.1M · 2026-02-01 · 13 CASTLE ST, BLACKTOWN NSW 2148$1.7M · 2024-06-30 · 21 CASTLE ST, BLACKTOWN NSW 2148$1.1M · 2021-10-25 · 31 CASTLE ST, BLACKTOWN NSW 2148
Turnover rate10.3%Past 5 years

PART 3
Apartments

Street Sales - Apartments

Actual apartment (unit) sales on Castle St, Blacktown NSW 2148 over the past 5 years, plotted against the Blacktown NSW 2148 median apartment price trend over the same period.

Street sales vs suburb median
Suburb Median Price
$0$125k$250k$375k$500kOct 21June 23Feb 25Oct 26$450k · 2022$459k · 2023$460k · 2024$450k · 2025$463k · 2026
Apartment sales0Past 12 months
Turnover rate0%Past 5 years

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Living in Castle St, Blacktown NSW 2148 : Street Profile & FAQs

Common questions about living on and buying property on Castle St, Blacktown NSW 2148 — 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 Castle St an expensive or affordable street relative to Blacktown?

There are insufficient recent house sales on Castle St to calculate a reliable premium or discount against the Blacktown 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 Castle St?

There is no bushfire, heritage, or flood overlay risk on Castle St, and no high-voltage powerlines are nearby. However, flood checks are recommended for 10 properties, while 19 have been reviewed and found to have no flood risk identified or not mapped. A flood check recommendation means further assessment is advised, so buyers should review council mapping, flood reports, and insurance costs before purchasing.

Are properties on Castle St mostly on high, level or low ground?

The street has a mixed elevation profile. There are 20 level properties, 6 low-lying properties, and no high-side properties recorded. Different elevations can influence site characteristics, but buyers should assess the elevation of the specific property rather than relying on the street average.

What type of road is Castle St?

Castle St is a local road. Local roads generally serve nearby residents and connect local streets with larger roads. The speed limit and the share of stock fronting this road section are not available.

Is Castle St mostly houses or apartments?

Castle St has 29 residential properties in total. The street is predominantly houses, with 100% of the residential stock classified as houses and 0% as apartments.

What are the major apartment developments on Castle St?

No major apartment developments are recorded on Castle St.

How many properties have sold on Castle St?

One house sold in the past 12 months, and no apartments sold. The 5-year turnover rate for houses is 10.3%, representing the proportion of properties that changed ownership during the past five years. Apartment turnover data is unavailable.

Is Castle St a good street to buy property on?

Castle St is a local road with 29 residential properties, all of which are houses. It is a quiet residential street with no bushfire or heritage overlays, though flood checks are recommended for 10 properties and 19 have been reviewed with no flood risk identified. The street is predominantly level ground, with 20 level properties and 6 low-lying properties. One house sold in the past 12 months, and the 5-year turnover rate for houses is 10.3%.