Development applications in St Clair, NSW 2759
29 development applications were lodged for properties in St Clair from Oct 2025 to Sep 2026. What is being built, how much of it is housing, and where each application stands.
Latest council activity:
Applications lodged
29
incl. 8 modifications
Decided
18
8 still in progress
New dwellings proposed
9
stated on applications
Declared construction value
$5.4M
across 18 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.
- 2Oct
- 3Nov
- 3Dec
- 1Jan
- 3Feb
- 3Mar
- 1Apr
- 2May
- 5Jun
- 1Jul
- 2Aug
- 3Sep
What is being proposed
21 new applications by main type of work (modifications excluded).
- Alterations & additions6
- New houses5
- Granny flats4
- Commercial, industrial & community3
- Demolition only1
- Dual occupancy & semi-detached1
- Other & change of use1
Where applications stand
Status of the 29 applications lodged in the last 12 months.
- Approved
- 0
- Determined (outcome not stated)
- 18
- Refused
- 0
- Withdrawn or not accepted
- 3
- In progress
- 8
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.
- Determined
24 Leicester Way
Dual occupancy, Demolition, Subdivision, Erection of a new structure, Dual occupancy (attached)
Dual occupancy & semi-detached · Lodged 27 Nov 2025 · 2 dwellings · $500K–$1M
- Determined
5 Dove Place
Dwelling house, Erection of a new structure
New houses · Lodged 18 Dec 2025 · 1 dwelling · $500K–$1M
- In progress
21 Sunndal Close
Dwelling house, Erection of a new structure
New houses · Lodged 11 Aug 2026 · 1 dwelling · $500K–$1M
- Determined
4 Nomad Grove
Demolition, Dwelling house, Erection of a new structure
New houses · Lodged 10 Apr 2026 · 1 dwelling · $500K–$1M
- Determined
25 Wills Glen
Dwelling house, Erection of a new structure, Residential Accommodation
New houses · Lodged 10 Feb 2026 · 1 dwelling · $100K–$500K
Most recent applications
The 30 most recent applications lodged in St Clair, newest first. Costs are shown as bands.
- In progress
38 Anchorage Street
Secondary dwelling, Erection of a new structure
Granny flats · Lodged 17 Sept 2026 · 1 dwelling · $100K–$500K
- In progress
1 Bellini Place
Dwelling house, Erection of a new structure
New houses · Lodged 16 Sept 2026 · 1 dwelling · $500K–$1M · Modification
- In progress
24 Leicester Way
Dual occupancy, Erection of a new structure, Dual occupancy (attached), Residential Accommodation
Dual occupancy & semi-detached · Lodged 15 Sept 2026 · 2 dwellings · $500K–$1M · Modification
- In progress
5 Eden Glen
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 27 Aug 2026 · Under $100K · Modification
- In progress
21 Sunndal Close
Dwelling house, Erection of a new structure
New houses · Lodged 11 Aug 2026 · 1 dwelling · $500K–$1M
- Determined
40 Lexington Avenue
Demolition, Erection of a new structure, Dual occupancy (detached)
Dual occupancy & semi-detached · Lodged 9 July 2026 · 1 dwelling · $100K–$500K · Modification
- Determined
96 Alpine Circuit
Alterations or additions to an existing building or structure, Balcony, deck, patio, terrace or verandah
Alterations & additions · Lodged 29 June 2026 · $100K–$500K
- Determined
4 Archer Court
Demolition, Water recreation structure
Commercial, industrial & community · Lodged 26 June 2026 · Under $100K
- Determined
6 Melville Road
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 12 June 2026 · $100K–$500K
- In progress
75 Rotorua Road
Secondary dwelling, Demolition, Erection of a new structure
Granny flats · Lodged 12 June 2026 · 1 dwelling · $100K–$500K
- In progress
124-126 Explorers Way
Demolition, Advertising and signage, Erection of a new structure, Early Education and Care Facility, Centre-based child care
Commercial, industrial & community · Lodged 1 June 2026 · Modification
- Determined
1 Hourglass Glen
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 20 May 2026 · $100K–$500K · Modification
- Withdrawn
6 Plover Close
Dwelling house, Erection of a new structure
New houses · Lodged 20 May 2026 · 1 dwelling · $100K–$500K
- Determined
4 Nomad Grove
Demolition, Dwelling house, Erection of a new structure
New houses · Lodged 10 Apr 2026 · 1 dwelling · $500K–$1M
- Determined
29 Chateau Crescent
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 30 Mar 2026 · Under $100K · Modification
- In progress
11 Ashwick Circuit
Subdivision
Subdivisions · Lodged 20 Mar 2026 · Under $100K · Modification
- Withdrawn
48 Solander Drive
Secondary dwelling, Erection of a new structure
Granny flats · Lodged 10 Mar 2026 · 1 dwelling · $100K–$500K
- Determined
1 Hourglass Glen
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 23 Feb 2026 · $100K–$500K
- Determined
7 Todd Row
Signage, Advertising and signage, Business identification sign
Commercial, industrial & community · Lodged 16 Feb 2026 · Under $100K
- Determined
25 Wills Glen
Dwelling house, Erection of a new structure, Residential Accommodation
New houses · Lodged 10 Feb 2026 · 1 dwelling · $100K–$500K
- Determined
26 Explorers Way
Dwelling house, Alterations or additions to an existing building or structure, Residential Accommodation
Alterations & additions · Lodged 29 Jan 2026 · $100K–$500K
- Determined
2 Liberator Way
Secondary dwelling, Erection of a new structure
Granny flats · Lodged 24 Dec 2025 · 1 dwelling · $100K–$500K
- Determined
5 Dove Place
Dwelling house, Erection of a new structure
New houses · Lodged 18 Dec 2025 · 1 dwelling · $500K–$1M
- Determined
31 St Clair Avenue
Demolition, Alterations or additions to an existing building or structure, Balcony, deck, patio, terrace or verandah (screened enclosures)
Alterations & additions · Lodged 2 Dec 2025 · $100K–$500K
- Determined
24 Leicester Way
Dual occupancy, Demolition, Subdivision, Erection of a new structure, Dual occupancy (attached)
Dual occupancy & semi-detached · Lodged 27 Nov 2025 · 2 dwellings · $500K–$1M
- Withdrawn
15 Lockheed Circuit
Home business, Office Premise, Change of use of land or a building or the classification of a building under the Building Code of Australia
Commercial, industrial & community · Lodged 10 Nov 2025
- Determined
39 Horseshoe Circuit
Demolition
Demolition only · Lodged 10 Nov 2025 · Under $100K
- Determined
4 Afternoon Court
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 31 Oct 2025 · Under $100K
- Determined
30 Corio Drive
Erection of a new structure, Residential Accommodation
Other & change of use · Lodged 23 Oct 2025 · Under $100K
- Determined
5 Eden Glen
Dwelling house, Alterations or additions to an existing building or structure
Alterations & additions · Lodged 13 Aug 2025 · Under $100K
Application details as published by Penrith City Council. The council's own register is the authoritative record for any individual application.
Suburb profile
St Clair market data
Median prices, rental yield, growth, vacancy and properties for sale in St Clair.
Sales
Recently sold in St Clair
What buyers actually paid, days on market and recent sale prices in St Clair.
Development in St Clair: frequently asked questions
How many development applications were lodged in St Clair in the last 12 months?
29 development applications were lodged for properties in St Clair from Oct 2025 to Sep 2026. 8 were modifications to an earlier application. The busiest month was Jun 2026, with 5 applications.
What kind of development is happening in St Clair?
Of the new applications lodged in the last 12 months, the most common were alterations & additions (6), new houses (5), granny flats (4).
How many new homes are proposed in St Clair?
Applications lodged in St Clair in the last 12 months propose 9 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 St Clair have been decided?
Of the 29 applications lodged in the last 12 months, 18 have a decision (18 recorded as determined without the outcome stated), 8 are still in progress and 3 were withdrawn or not accepted.
Which council assesses development applications in St Clair?
Applications for St Clair are lodged with Penrith City Council. Its public register is the authoritative record for any individual application.