Development applications in Dee Why, NSW 2099

69 development applications were lodged for properties in Dee Why from Oct 2025 to Sep 2026. What is being built, how much of it is housing, and where each application stands.

Latest council activity: 16 Sept 2026

Applications lodged

incl. 16 modifications

Decided

23 still in progress

New dwellings proposed

102

stated on applications

Declared construction value

$101.5M

across 46 applications

Applications lodged each month

Oct 2025 to Sep 2026. The latest month is month-to-date, and councils can publish applications a few weeks after lodgement.

7
Oct
2
Nov
5
Dec
4
Jan
5
Feb
7
Mar
8
Apr
4
May
7
Jun
6
Jul
10
Aug
4
Sep

What is being proposed

53 new applications by main type of work (modifications excluded).

Alterations & additions20
New houses10
Apartments & townhouses7
Commercial, industrial & community7
Dual occupancy & semi-detached6
Granny flats1
Other & change of use1
Pools, sheds, garages & decks1

Where applications stand

Status of the 69 applications lodged in the last 12 months.

Approved: 0
Determined (outcome not stated): 41
Refused: 0
Withdrawn or not accepted: 5
In progress: 23

Many council records only say an application was "determined", without saying whether it was approved, so those are shown separately rather than counted as approvals.

Largest projects in the last 12 months

Ranked by dwellings proposed, then declared construction cost.

816 Pittwater Road
Demolition, Shop top housing, Office Premise, Erection of a new structure, Serviced apartment
In progress
Apartments & townhouses · Lodged 13 July 2026 · 44 dwellings · $20M–$100M
1 26 The Strand
Demolition, Shop top housing, Erection of a new structure, Residential Accommodation
In progress
Apartments & townhouses · Lodged 14 July 2026 · 12 dwellings · $5M–$20M
145 Oaks Avenue
Demolition, Residential flat building, Erection of a new structure
In progress
Apartments & townhouses · Lodged 1 Apr 2026 · 9 dwellings · $5M–$20M
70 Delmar Parade
Demolition, Seniors housing, Independent living units, Erection of a new structure, Non-standard Housing, Residential Accommodation
In progress
Apartments & townhouses · Lodged 24 Apr 2026 · 9 dwellings · $5M–$20M
12 The Strand
Shop top housing, Erection of a new structure, Retail Premise
Determined
Apartments & townhouses · Lodged 2 Apr 2026 · 7 dwellings · $1M–$5M

Most recent applications

The 30 most recent applications lodged in Dee Why, newest first. Costs are shown as bands.

66 Griffin Road
Demolition, Dwelling house, Erection of a new structure
In progress
New houses · Lodged 16 Sept 2026 · 1 dwelling · $1M–$5M
103A Victor Road
Dwelling house, Erection of a new structure
In progress
New houses · Lodged 3 Sept 2026 · 1 dwelling · Modification
46 Monash Parade
Dwelling house, Alterations or additions to an existing building or structure
In progress
Alterations & additions · Lodged 3 Sept 2026 · $1M–$5M · Modification
79 Cassia Street
Dwelling house, Alterations or additions to an existing building or structure
In progress
Alterations & additions · Lodged 1 Sept 2026 · Under $100K
7 Mcintosh Road
Dual occupancy, Demolition, Subdivision, Erection of a new structure, Dual occupancy (attached)
In progress
Dual occupancy & semi-detached · Lodged 31 Aug 2026 · 2 dwellings · $1M–$5M
46 Monash Parade
Dwelling house, Alterations or additions to an existing building or structure
In progress
Alterations & additions · Lodged 28 Aug 2026 · $1M–$5M · Modification
9 Ozone Parade
Alterations or additions to an existing building or structure, Carport
In progress
Alterations & additions · Lodged 26 Aug 2026 · Under $100K
2 Keswick Street
Demolition, Dwelling house, Erection of a new structure
In progress
New houses · Lodged 21 Aug 2026 · 1 dwelling · $1M–$5M
2 Arthur Street
Dwelling house, Subdivision, Erection of a new structure
In progress
New houses · Lodged 19 Aug 2026 · 1 dwelling · $500K–$1M
34 Tasman Street
Dwelling house, Alterations or additions to an existing building or structure
In progress
Alterations & additions · Lodged 18 Aug 2026 · $500K–$1M
3 Redfern Parade
Alterations or additions to an existing building or structure, Balcony, deck, patio, terrace or verandah (screened enclosures)
In progress
Alterations & additions · Lodged 10 Aug 2026 · $100K–$500K
11 Tor Road
Attached dwelling, Dual occupancy, Erection of a new structure, Dual occupancy (attached), Residential Accommodation
In progress
Dual occupancy & semi-detached · Lodged 6 Aug 2026 · 2 dwellings · $1M–$5M
177 Pacific Parade
Dwelling house, Alterations or additions to an existing building or structure, Swimming pool, Residential Accommodation
In progress
Alterations & additions · Lodged 5 Aug 2026 · $500K–$1M
16 Daisy Street
Dwelling house, Erection of a new structure
Determined
New houses · Lodged 3 Aug 2026 · 1 dwelling · $500K–$1M
11 Tor Road
Attached dwelling, Dual occupancy, Erection of a new structure, Dual occupancy (attached), Residential Accommodation
In progress
Dual occupancy & semi-detached · Lodged 26 July 2026 · 2 dwellings · $1M–$5M
23 Tasman Street
Dwelling house, Alterations or additions to an existing building or structure
Determined
Alterations & additions · Lodged 17 July 2026 · Under $100K · Modification
1 26 The Strand
Demolition, Shop top housing, Erection of a new structure, Residential Accommodation
In progress
Apartments & townhouses · Lodged 14 July 2026 · 12 dwellings · $5M–$20M
816 Pittwater Road
Demolition, Shop top housing, Office Premise, Erection of a new structure, Serviced apartment
In progress
Apartments & townhouses · Lodged 13 July 2026 · 44 dwellings · $20M–$100M
37 Monash Parade
Dwelling house, Erection of a new structure
Determined
New houses · Lodged 9 July 2026 · 1 dwelling · $1M–$5M · Modification
10 90 Howard Avenue
Residential flat building, Alterations or additions to an existing building or structure
Determined
Alterations & additions · Lodged 7 July 2026 · $100K–$500K
45 The Crescent
Secondary dwelling, Demolition, Dwelling house, Alterations or additions to an existing building or structure, Erection of a new structure
In progress
Granny flats · Lodged 29 June 2026 · 2 dwellings · $1M–$5M
19 Burne Avenue
Dwelling house, Alterations or additions to an existing building or structure
In progress
Alterations & additions · Lodged 22 June 2026 · $1M–$5M
179 Pacific Parade
Demolition, Dwelling house, Erection of a new structure
Determined
New houses · Lodged 18 June 2026 · 1 dwelling · Modification
8 Henry Street
Demolition, Erection of a new structure, Semi-detached dwelling
In progress
Dual occupancy & semi-detached · Lodged 17 June 2026 · 2 dwellings · $1M–$5M
76 Delmar Parade
Dwelling house, Alterations or additions to an existing building or structure
Determined
Alterations & additions · Lodged 12 June 2026 · $500K–$1M · Modification
19 Burne Avenue
Dwelling house, Alterations or additions to an existing building or structure
In progress
Alterations & additions · Lodged 10 June 2026 · $1M–$5M
69 Quirk Street
Demolition, Dwelling house, Erection of a new structure
Determined
New houses · Lodged 3 June 2026 · 1 dwelling · $1M–$5M
103A Victor Road
Dwelling house, Erection of a new structure
Determined
New houses · Lodged 28 May 2026 · 1 dwelling · $1M–$5M
3 65 Pacific Parade
Home business, Change of use of land or a building or the classification of a building under the Building Code of Australia
Determined
Other & change of use · Lodged 27 May 2026
16 The Strand
Recreation facility (indoor), Hours of operation and trading
Determined
Commercial, industrial & community · Lodged 14 May 2026

Application details as published by Northern Beaches Council. The council's own register is the authoritative record for any individual application.

Suburb profile

Dee Why market data

Median prices, rental yield, growth, vacancy and properties for sale in Dee Why.

Sales

Recently sold in Dee Why

What buyers actually paid, days on market and recent sale prices in Dee Why.

Development in Dee Why: frequently asked questions

How many development applications were lodged in Dee Why in the last 12 months?

69 development applications were lodged for properties in Dee Why from Oct 2025 to Sep 2026. 16 were modifications to an earlier application. The busiest month was Aug 2026, with 10 applications.

What kind of development is happening in Dee Why?

Of the new applications lodged in the last 12 months, the most common were alterations & additions (20), new houses (10), apartments & townhouses (7).

How many new homes are proposed in Dee Why?

Applications lodged in Dee Why in the last 12 months propose 102 new dwellings, counting new houses, granny flats, dual occupancies, townhouses and apartments where the application states a dwelling count. Withdrawn applications and modifications are excluded.

How many development applications in Dee Why have been decided?

Of the 69 applications lodged in the last 12 months, 41 have a decision (41 recorded as determined without the outcome stated), 23 are still in progress and 5 were withdrawn or not accepted.

Which council assesses development applications in Dee Why?

Applications for Dee Why are lodged with Northern Beaches Council. Its public register is the authoritative record for any individual application.