Cassia St, Dee Why NSW 2099

Street
PART 1
Street Profile

Property Type Mix

The mix of houses and apartments (units) that make up the Cassia St, Dee Why NSW 2099 property market.

Houses vs Apartments192 total lots
21.4%
76.6%
2%
Houses (21.4%)
Apartments (76.6%)
Townhouses/Villas/Unclassified (2%)

PART 2
Houses

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

Land Topography

How house lots on Cassia St, 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
High-sideFlatLow-side
19 lots
15 lots
3 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 Cassia St, 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$5.0MJuly 21Mar 23Nov 24July 26$2.5M · 2022$2.5M · 2023$2.9M · 2024$2.8M · 2025$1.8M · 2021-10-30 · 2/66 CASSIA ST, DEE WHY NSW 2099$2.1M · 2022-04-08 · 1/68 CASSIA ST, DEE WHY NSW 2099$3.7M · 2024-08-30 · 72 CASSIA ST, DEE WHY NSW 2099$4.8M · 2023-11-08 · 79 CASSIA ST, DEE WHY NSW 2099$3.6M · 2022-02-11 · 80 CASSIA ST, DEE WHY NSW 2099$4.3M · 2023-06-27 · 83 CASSIA ST, DEE WHY NSW 2099
Turnover rate14.6%Past 5 years

PART 3
Apartments

Street Sales - Apartments

Actual apartment (unit) sales on Cassia St, 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
Street SalesSuburb Median Price
$0$500k$1.0M$1.5M$2.0MJuly 21Mar 23Nov 24July 26$903k · 2022$885k · 2023$932k · 2024$1.1M · 2025$1.1M · 2026$1.2M · 2025-11-29 · 6/10 CASSIA ST, DEE WHY NSW 2099$1.3M · 2025-11-20 · 7/10 CASSIA ST, DEE WHY NSW 2099$1.2M · 2021-12-09 · 2/32 CASSIA ST, DEE WHY NSW 2099$975k · 2025-12-02 · 8/32 CASSIA ST, DEE WHY NSW 2099$1.1M · 2024-02-08 · 10/32 CASSIA ST, DEE WHY NSW 2099$950k · 2023-07-21 · 3/40 CASSIA ST, DEE WHY NSW 2099$1.1M · 2022-04-07 · 4/40 CASSIA ST, DEE WHY NSW 2099$1.1M · 2024-08-17 · 8/40 CASSIA ST, DEE WHY NSW 2099$1.1M · 2024-08-01 · 5/40 CASSIA ST, DEE WHY NSW 2099$1M · 2023-08-01 · 2/40 CASSIA ST, DEE WHY NSW 2099$805k · 2021-10-20 · 7/52 CASSIA ST, DEE WHY NSW 2099$1.1M · 2023-12-07 · 8/52 CASSIA ST, DEE WHY NSW 2099$1.1M · 2024-11-18 · 3/28 CASSIA ST, DEE WHY NSW 2099$830k · 2023-05-05 · 11/52 CASSIA ST, DEE WHY NSW 2099$1.6M · 2025-07-10 · 5/52 CASSIA ST, DEE WHY NSW 2099$1.7M · 2022-07-05 · 2/24 CASSIA ST, DEE WHY NSW 2099$1.7M · 2024-08-30 · 9/24 CASSIA ST, DEE WHY NSW 2099$1.4M · 2025-09-26 · 15/44 CASSIA ST, DEE WHY NSW 2099$1.3M · 2021-12-14 · 1/44 CASSIA ST, DEE WHY NSW 2099$998k · 2024-08-28 · 22/44 CASSIA ST, DEE WHY NSW 2099$830k · 2024-05-08 · 25/44 CASSIA ST, DEE WHY NSW 2099$935k · 2026-02-25 · 3/44 CASSIA ST, DEE WHY NSW 2099$935k · 2026-02-25 · 3/44 CASSIA ST, DEE WHY NSW 2099$1.1M · 2022-03-18 · 4/4 CASSIA ST, DEE WHY NSW 2099$1.4M · 2026-03-16 · 7/20 CASSIA ST, DEE WHY NSW 2099$1.5M · 2025-08-30 · 4/16 CASSIA ST, DEE WHY NSW 2099$1M · 2021-08-10 · 6/16 CASSIA ST, DEE WHY NSW 2099$1.2M · 2022-11-10 · 7/16 CASSIA ST, DEE WHY NSW 2099
Apartment sales8Past 12 months
Turnover rate19.7%Past 5 years

Largest Apartment Projects

The largest apartment projects on Cassia St, Dee Why NSW 2099, ranked by number of lots.

1
44 CASSIA ST, DEE WHY NSW 2099Small-Medium project (20-50 lots)
2
32 CASSIA ST, DEE WHY NSW 2099Small project (<20 lots)
3
52 CASSIA ST, DEE WHY NSW 2099Small project (<20 lots)

Get the knest.ai app

Gain ultimate insights into any property

Buyer-focused property platform identifying risks, price estimates, 3D land maps and more to help you make smarter decisions — completely free.

Download on the App Store
5.0 rating
15k users