Stickybeak

Dee Why 2099 suburb insights

Postcode 2099 covers Dee Why, a residential suburb within the Northern Beaches local government area of New South Wales. Stickybeak analyses Dee Why across four dimensions that matter to buyers: affordability (median sale prices, rental yield, and first home buyer eligibility), lifestyle quality (school catchments, childcare, walkability, and CBD commute times), risk factors (flood zone mapping, bushfire prone land, air quality, and traffic volume), and suburb momentum (development pipeline, price trajectory over time, and ABS demographic data). The section navigation at the top of the page lets you jump directly to any part of the analysis. All figures are sourced from NSW government and federal datasets and refreshed as new data is published.

Last refreshed April 2026 (most cards). Per-card sources show exact dates.

All data has limits. See our data caveats.

Affordability

Can I afford Dee Why?

Can I afford Dee Why?

Serviceability check

What would a typical mortgage look like in Dee Why? Based on the suburb median of $940,000 (units) and the local median household income.

Monthly repayment
$4,640/mo

6.3% variable · Apr 2026

Repayment-to-income
50.8%

Stretch

Loan assumptions
$752,000 loan
20% deposit ($188,000)
30-year P&I

At today's rate, repayments here would eat 51% of the typical local household's gross income. That is out of reach for most buyers.

Repayment burden vs Sydney median income
Dee Why50.8%
Sydney median income51.7%
30% stress line

Assumes a 20% deposit and a 30-year P&I owner-occupier loan at the current Sydney variable rate. Your actual rate, deposit, and income will differ.

Sources: RBA Table F6 (rate), ABS Census 2021 G02 (income), suburb median sale.

Nearby suburbs with lower medians

Still looking? These suburbs are closer to reach.

Based on median prices and a 20% deposit at 6.27% variable.
Can I afford Dee Why?

Rental market in Dee Why

Median weekly rent from lodged bonds. Sep 2025. Based on 190 new bond lodgements this quarter.

Rents here are at the higher end for Sydney. Higher holding costs for investors; higher savings pressure for renters.

Median weekly rent · Unit · 2 bed
$840per week
Sep 2025 · 190 bonds lodged
Quarterly trend · last 12 quarters
Dec 22: $675 per week (134 bonds)Mar 23: $700 per week (168 bonds)Jun 23: $700 per week (183 bonds)Sep 23: $700 per week (203 bonds)Dec 23: $730 per week (194 bonds)Mar 24: $750 per week (176 bonds)Jun 24: $778 per week (190 bonds)Sep 24: $775 per week (236 bonds)Dec 24: $795 per week (159 bonds)Mar 25: $810 per week (174 bonds)Jun 25: $800 per week (180 bonds)Sep 25: $840 per week (190 bonds)Dec 22Jun 24Sep 25

Nearby suburbs · same combination

Brookvale2100
$838▼$2
2.5 km away
Collaroy2097
$863▲$23
3.0 km away
Curl Curl2096
$900▲$60
4.2 km away
Frenchs Forest2086
$1,150▲$310
4.3 km away
NSW DCJ Rental Bond Board · Sep 2025 · CC BY. Cells with 10 or fewer bond lodgements are suppressed; cells with 30 or fewer have the bond count suppressed but rent published. Figures are transacted rents, not asking rents.

Lifestyle

Dee Why Lifestyle

Source: ABS Census 2021, Postal Areas (CC BY 4.0).

Dealbreakers

Any dealbreakers?

Any dealbreakers?

Air quality in Dee Why

33
GoodAQI · NSW DCCEEW
04:19 AEST
Cammeray station · 10.6 km from centroid
12-month median: AQI 28 · Good

Air quality is generally safe for outdoor activity.

Pollutants
nearest station
PM2.5i
5.2µg/m³
24-hr avg
PM10i
16.7µg/m³
24-hr avg
NO₂i
0.4pphm
1hr reading
AQI · last 12 months · daily mean
Cammeray station · 365 daily points
Source: NSW DCCEEW Air Quality API (CC BY 4.0). Historical data updated weekly; live readings cached 60 minutes.
View dealbreakers as a standalone report →

Change

How might Dee Why change?

DEVELOPMENT PIPELINE · NSW PLANNING PORTAL · 2099

What’s in the pipeline

NSW Planning Portal feed paused at the source for postcode 2099. Expected back by Q3 2026.

NSW PLANNING PORTAL
How might Dee Why change?

Investor activity in Dee Why

2099 · ATO Taxation Statistics · ~18-month lag
Source: ATO Taxation Statistics (CC BY 2.5 AU).

What to do next

Three steps to move from research to action.

1
Get pre-approved

Know your budget before you inspect. A pre-approval letter strengthens your offer.

Read our guides
2
Set a listings alert

See new listings in Dee Why under the median ($940,000).

Search on Domain
3
Join the contract-review waitlist

Have your Section 66W reviewed before you sign.

Join the waitlist

Track Dee Why.

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Compare Dee Why with another suburb

Also in Northern Beaches

Comparing suburbs in the same area can sharpen your decision. Browse suburb insights for other Northern Beaches postcodes, or explore the full Northern Beaches suburb index.

Avalon Beach 2107Balgowlah 2093Bayview 2104Brookvale 2100

Other Northern Beaches suburbs

Avalon Beach 2107Brookvale 2100Manly 2095

Frequently asked questions

What suburb is postcode 2099?
Dee Why is the primary suburb with postcode 2099 in New South Wales. In some cases multiple suburbs share the same postcode — Dee Why is the main locality.
Which local government area is Dee Why in?
Dee Why (2099) is located in the Northern Beaches local government area in New South Wales.
What data does Stickybeak show for Dee Why?
Stickybeak shows 16 data cards for Dee Why (2099) covering affordability (median sale prices, rental yield, first home buyer eligibility), lifestyle (schools, childcare, walkability, commute times), risk factors (flood zones, bushfire prone land, air quality, traffic volume), and suburb growth signals (development pipeline, price trajectory, demographics).
Is Dee Why flood prone?
Flood risk varies street by street in Dee Why. Check the Dealbreakers section on this page for the latest NSW flood zone mapping sourced from official state government data. Always verify at the property level with a Section 10.7 certificate before purchasing.
What are the best schools near Dee Why?
The Schools card on this page lists primary and secondary schools within the catchment area for Dee Why (2099), including their NAPLAN performance data and distance from the suburb centre.
Is Dee Why (2099) eligible for the First Home Buyer scheme?
The First Home Buyer eligibility card on this page shows which NSW and federal government schemes — including the First Home Guarantee, stamp duty exemptions, and the First Home Super Saver scheme — apply to purchases in Dee Why (2099). Eligibility depends on the purchase price and your individual circumstances.
How is Dee Why changing?
The Change section on this page covers new housing supply from the development pipeline, historical price trajectory, and demographic shifts for Dee Why (2099) using data from NSW Planning, the ATO, and the ABS.

Explore Dee Why in depth

Dig deeper into specific topics for Dee Why 2099: see flood risk, schools, walkability, and rental market as standalone pages. Or browse the full Northern Beaches suburb index to compare nearby options.