3 Halcyon Avenue additions and alterations to an existing dwelling - X/415/2025 (Certificate received - Private Certifier)
Development application in Additions And Alterations To An Existing Dwelling - X/415/2025 (Certificate Received - Private Certi, New South Wales · Blue Mountains City Council
Proposed development
CC issued by private certifier
Application details
- Application number
- X/7/2026
- Record type
- Building Permit
- Category
- Building Work
- Lodged
- 9 January 2026
- Council
- Blue Mountains City Council
Nearby development activity
74 Railway Parade additions and alterations to existing dwelling and retaining walls - X/1166/2025 (Certificate received - Private Certifier)
Building Work
10-Oct-2025
08-Oct-2025
Infrastructure
15-Oct-2025
Other
115 Edgecliff Road WOOLLAHRA NSW 2025
10-Oct-2025
Other
6 Milton Avenue WOOLLAHRA NSW 2025
82 Clanwilliam Street single-storey dwelling with roofed porch, attached studio, detached garage, rainwater tank and associated retaining walls - (DA X/1099/2025) (Approved - Council-Delegated Authority)
Residential
About this development application
A development application (DA) is lodged with Blue Mountains City Council when a property owner seeks consent to build, renovate, demolish, subdivide or change the use of a property in Additions And Alterations To An Existing Dwelling - X/415/2025 (Certificate Received - Private Certi. This record is part of Council DA's database of 3.97 million development applications from 290+ Australian councils.
Tracking DAs like this one helps residents stay informed about neighbourhood change, and helps builders, agents and researchers understand local development trends.