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Billarong Ave, Dee Why NSW 2099

Street

Street Summary

Billarong Ave, Dee Why NSW 2099 is a local road where 12 homes sit level with the street. Seven properties are in a bushfire zone and 13 are subject to a flood overlay. The street is entirely composed of houses, with a 7.7% turnover rate over the past five years. There are insufficient recent house sales to calculate a reliable comparison against the suburb median, 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 Billarong Ave, Dee Why NSW 2099 property market.

Houses vs Apartments13 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 Billarong Ave, Dee Why NSW 2099 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
12 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
7 houses affected
Flood
13 houses affected
High voltage power line
0 houses affected

Street Sales - Houses

Actual house sales on Billarong Ave, Dee Why NSW 2099 over the past 5 years, plotted against the Dee Why NSW 2099 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$2.5M · 2022$2.5M · 2023$2.9M · 2024$2.8M · 2025$2.4M · 2026$2.1M · 2022-11-02 · 2 BILLARONG AVE, DEE WHY NSW 2099
Turnover rate7.7%Past 5 years

PART 3
Apartments

Street Sales - Apartments

Actual apartment (unit) sales on Billarong Ave, Dee Why NSW 2099 over the past 5 years, plotted against the Dee Why NSW 2099 median apartment price trend over the same period.

Street sales vs suburb median
Suburb Median Price
$0$500k$1.0M$1.5M$2.0MSept 21May 23Jan 25Sept 26$903k · 2022$885k · 2023$932k · 2024$1.1M · 2025$1.1M · 2026
Apartment sales0Past 12 months
Turnover rate0%Past 5 years

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Living in Billarong Ave, Dee Why NSW 2099 : Street Profile & FAQs

Common questions about living on and buying property on Billarong Ave, Dee Why NSW 2099 — 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 Billarong Ave an expensive or affordable street relative to Dee Why?

There are insufficient recent house sales on Billarong Ave to calculate a reliable premium or discount against the Dee Why 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 Billarong Ave?

There are 7 properties in a bushfire zone, 0 heritage items, and 13 properties within a flood overlay. No properties are recommended for a flood check, and 0 fall under other flood classifications. There are 0 properties near high-voltage powerlines. A flood overlay does not necessarily mean a property floods, but it is worth reviewing council mapping, flood reports and insurance costs before purchasing.

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

12 homes sit level with the street. Buyers should assess the specific property rather than relying on the street average, as different site heights relative to the street can influence site characteristics.

What type of road is Billarong Ave?

Billarong Ave is a local road. Local roads generally serve nearby residents.

Is Billarong Ave mostly houses or apartments?

There are 13 residential properties on the street. Houses make up 100% of the residential stock, while apartments make up 0%.

What are the major apartment developments on Billarong Ave?

No major apartment developments are recorded on Billarong Ave.

How many properties have sold on Billarong Ave?

0 houses sold in the past 12 months, and 0 apartments sold in the past 12 months. The 5-year turnover rate for houses is 7.7%. Turnover measures the proportion of properties that changed ownership during the past five years.

Is Billarong Ave a good street to buy property on?

Billarong Ave is a local road in Dee Why with 13 residential properties, all of which are houses. The street has 7 bushfire-zone properties, 13 properties within a flood overlay, and 12 homes sitting level with the street. The 5-year house turnover rate is 7.7%. Buyers looking for detached houses on a local residential street may find this profile suitable.