1823 handles enquiries for 23 participating departments. If you cannot find the required information, you may visit GovHK.
- All
- Alteration work in existing buildings or flats
- Minor Works Control System
- Register as Minor Works Contractors
- Unauthorised Building Works (UBW)
- Application for Inclusion in the List of Architectural and Associated Consultants for Building Projects
- Mandatory Building Inspection Scheme
- Mandatory Window Inspection Scheme
Last Review Date: 13 Oct 2026
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