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Cowper St, Marrickville NSW 2204

Street

Street Summary

Cowper St, Marrickville NSW 2204 is a local road where 18.6% of residences are houses and 81.4% are apartments. 15 homes sit level with the street. One home is heritage-listed, 15 are recommended for a flood check, and one has an other flood classification. There are insufficient recent house sales to calculate a reliable comparison against the suburb. Top apartment projects include 29 Cowper St (34 lots, 5 levels, built 2010), 8 Cowper St (21 lots, 4 levels), and 1 Cowper St (6 lots, 2 levels, built 2008).


PART 1
Street Profile

Property Type Mix

The mix of houses and apartments (units) that make up the Cowper St, Marrickville NSW 2204 property market.

Houses vs Apartments86 total lots
18.6%
81.4%
Houses (18.6%)
Apartments (81.4%)
Townhouses/Villas/Unclassified (0%)

PART 2
Houses

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

Land Topography

How house lots on Cowper St, Marrickville NSW 2204 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
15 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
1 houses affected
Bushfire
0 houses affected
Flood
0 houses affected
High voltage power line
0 houses affected

Street Sales - Houses

Actual house sales on Cowper St, Marrickville NSW 2204 over the past 5 years, plotted against the Marrickville NSW 2204 median house price trend over the same period.

Street sales vs suburb median
Street SalesSuburb Median Price
$0$1.3M$2.5M$3.8M$5.0MSept 21May 23Jan 25Sept 26$1.9M · 2022$2M · 2023$2.1M · 2024$2.2M · 2025$2M · 2026$1.8M · 2026-07-18 · 13 COWPER ST, MARRICKVILLE NSW 2204$1.5M · 2023-01-25 · 27 COWPER ST, MARRICKVILLE NSW 2204$2.2M · 2023-02-01 · 27A COWPER ST, MARRICKVILLE NSW 2204$2.4M · 2021-09-24 · 10 COWPER ST, MARRICKVILLE NSW 2204
Turnover rate18.8%Past 5 years

PART 3
Apartments

Street Sales - Apartments

Actual apartment (unit) sales on Cowper St, Marrickville NSW 2204 over the past 5 years, plotted against the Marrickville NSW 2204 median apartment 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$787k · 2022$841k · 2023$910k · 2024$928k · 2025$950k · 2026$1.3M · 2022-04-13 · 14/29 COWPER ST, MARRICKVILLE NSW 2204$650k · 2025-01-24 · 16/29 COWPER ST, MARRICKVILLE NSW 2204$699k · 2025-08-27 · 16/29 COWPER ST, MARRICKVILLE NSW 2204$605k · 2024-02-23 · 18/29 COWPER ST, MARRICKVILLE NSW 2204$1.2M · 2021-10-28 · 23/29 COWPER ST, MARRICKVILLE NSW 2204$1.2M · 2022-03-05 · 26/29 COWPER ST, MARRICKVILLE NSW 2204$1.3M · 2025-10-18 · 28/29 COWPER ST, MARRICKVILLE NSW 2204$1.3M · 2025-05-30 · 2/29 COWPER ST, MARRICKVILLE NSW 2204$525k · 2023-10-10 · 33/29 COWPER ST, MARRICKVILLE NSW 2204$594k · 2025-05-14 · 33/29 COWPER ST, MARRICKVILLE NSW 2204$1.1M · 2025-02-28 · 34/29 COWPER ST, MARRICKVILLE NSW 2204$1.9M · 2025-10-28 · 4/1 COWPER ST, MARRICKVILLE NSW 2204
Apartment sales3Past 12 months
Turnover rate18.6%Past 5 years

Largest Apartment Projects

The largest apartment projects on Cowper St, Marrickville NSW 2204, ranked by number of lots.

1
29 COWPER ST, MARRICKVILLE NSW 2204Small-Medium project (20-50 lots)
2
8 COWPER ST, MARRICKVILLE NSW 2204Small-Medium project (20-50 lots)
3
1 COWPER ST, MARRICKVILLE NSW 2204Small project (<20 lots)

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Living in Cowper St, Marrickville NSW 2204 : Street Profile & FAQs

Common questions about living on and buying property on Cowper St, Marrickville NSW 2204 — 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 Cowper St an expensive or affordable street relative to Marrickville?

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

One property on Cowper St has a heritage listing, which means renovations, extensions, or exterior changes may require additional council approval, reducing renovation flexibility. There are no bushfire, flood overlay, or high-voltage powerline overlays. Flood checks are recommended for 15 properties, while one property has been reviewed and found to have no flood risk identified or not mapped. Buyers should review council mapping, flood reports and insurance costs before purchasing.

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

15 homes sit level with the street. Different site heights relative to the street can influence site characteristics, but buyers should assess the specific property rather than relying on the street average.

What type of road is Cowper St?

Cowper St is a local road, which generally serves nearby residents. There is no speed limit or dominant road percentage data available for this street.

Is Cowper St mostly houses or apartments?

Cowper St has 86 residential properties, with 18.6% being houses and 81.4% being apartments. The street is predominantly apartments.

What are the major apartment developments on Cowper St?

The major apartment developments on Cowper St include 29 Cowper St with 34 lots across 5 levels built in 2010, 8 Cowper St with 21 lots across 4 levels, and 1 Cowper St with 6 lots across 2 levels built in 2008. These developments contribute to the street's apartment presence or higher-density residential character.

How many properties have sold on Cowper St?

One house and three apartments have sold on Cowper St in the past 12 months. The 5-year turnover rate for houses is 18.8%, and for apartments it is 20%. The turnover rate represents the proportion of properties that changed ownership during the past five years.

Is Cowper St a good street to buy property on?

Cowper St is a local road with 86 residential properties, predominantly apartments. It features one heritage-listed property and has 15 homes sitting level with the street. Recent sales activity includes one house and three apartments over the past 12 months, with 5-year turnover rates of 18.8% for houses and 20% for apartments. Buyers looking for detached houses should note the limited stock, while apartment buyers will find a higher-density residential character with several major developments.