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Northumberland Ave, Mount Colah NSW 2079

Street

Street Summary

Northumberland Ave, Mount Colah NSW 2079 sits below the suburb's house median. The street is a local road. 36 homes sit above the street; 7 homes sit level with the street; 27 homes sit below the street. 26 homes are in a bushfire zone and 16 are recommended for a flood check. The street is 100% house. Two houses sold in the past 12 months.


PART 1
Street Profile

Property Type Mix

The mix of houses and apartments (units) that make up the Northumberland Ave, Mount Colah NSW 2079 property market.

Houses vs Apartments78 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 Northumberland Ave, Mount Colah NSW 2079 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
High-sideFlatLow-side
36 lots
7 lots
27 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
26 houses affected
Flood
0 houses affected
High voltage power line
0 houses affected

Street Sales - Houses

Actual house sales on Northumberland Ave, Mount Colah NSW 2079 over the past 5 years, plotted against the Mount Colah NSW 2079 median house price trend over the same period.

Street sales vs suburb median
Street SalesSuburb Median Price
$0$500k$1.0M$1.5M$2.0MSept 21May 23Jan 25Sept 26$1.6M · 2022$1.5M · 2023$1.6M · 2024$1.7M · 2025$1.7M · 2026$1.3M · 2024-07-06 · 8 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.3M · 2023-04-06 · 59 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.6M · 2023-11-10 · 54 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.3M · 2021-11-27 · 41 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.5M · 2025-05-31 · 40 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.2M · 2022-04-28 · 39 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.4M · 2025-09-30 · 33 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$961k · 2022-05-14 · 3 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.2M · 2022-02-10 · 27 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.5M · 2024-01-19 · 10 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$900k · 2023-05-17 · 15 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.6M · 2024-03-24 · 50 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.6M · 2023-11-20 · 56 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.6M · 2023-07-29 · 1A NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$920k · 2023-07-12 · 17 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.3M · 2025-06-03 · 19 NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079$1.3M · 2025-08-20 · 19A NORTHUMBERLAND AVE, MOUNT COLAH NSW 2079
Street price-9%vs suburb median
Turnover rate21.8%Past 5 years

PART 3
Apartments

Street Sales - Apartments

Actual apartment (unit) sales on Northumberland Ave, Mount Colah NSW 2079 over the past 5 years, plotted against the Mount Colah NSW 2079 median apartment price trend over the same period.

Street sales vs suburb median
Suburb Median Price
$0$250k$500k$750k$1.0MSept 21May 23Jan 25Sept 26$620k · 2022$631k · 2023$630k · 2024$630k · 2025
Apartment sales0Past 12 months
Turnover rate0%Past 5 years

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Living in Northumberland Ave, Mount Colah NSW 2079 : Street Profile & FAQs

Common questions about living on and buying property on Northumberland Ave, Mount Colah NSW 2079 — 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 NORTHUMBERLAND AVE an expensive or affordable street relative to MOUNT COLAH?

House prices on NORTHUMBERLAND AVE sit 9.14% below the MOUNT COLAH suburb house median.

What are the risk and overlay factors on NORTHUMBERLAND AVE?

26 properties face a bushfire zone overlay, while 0 properties are heritage-listed. No homes fall within a flood overlay, 16 are recommended for a flood check, and 62 have no flood risk identified or are not mapped. There are 0 properties near high-voltage powerlines. A flood check recommendation simply means further assessment is advised, and the other classification means no flood risk was identified or the property is not mapped.

Are properties on NORTHUMBERLAND AVE mostly on high, level or low ground?

36 homes sit above the street; 7 homes sit level with the street; 27 homes sit below the street.

What type of road is NORTHUMBERLAND AVE?

NORTHUMBERLAND AVE is a local road, meaning it primarily serves nearby residents rather than carrying through traffic. Traffic and noise levels are not specified in the available data.

Is NORTHUMBERLAND AVE mostly houses or apartments?

There are 78 residential properties on the street, and 100% are houses. There are 0% apartments.

What are the major apartment developments on NORTHUMBERLAND AVE?

No major apartment developments are recorded on NORTHUMBERLAND AVE.

How many properties have sold on NORTHUMBERLAND AVE?

2 houses sold in the past 12 months, and 0 apartments sold. The 5-year turnover rate for houses is 21.8%, which represents the proportion of properties that changed ownership during the past five years.

Is NORTHUMBERLAND AVE a good street to buy property on?

This street is best suited for buyers seeking detached houses on a local road. It may appeal to those comfortable with a 9.14% discount to the suburb median, though 26 homes face bushfire overlays and 16 require flood checks. It is not suitable for apartment buyers, as there are no apartment developments on the street.