See examples of full height windows (including 3/4 height and bay windows) (PDF, 324KB).
A renovation permit from HDB is required for all windows replacement work. A BCA Approved Window Contractor (AWC) who is listed in HDB’s Directory of Renovation Contractors needs to apply a renovation permit from HDB before carrying out the window replacement works.
For windows replacement work involving safety barriers, the following shall be complied with:
1. A Qualified Person (QP) who is a Professional Engineer (PE) in civil or structural engineering must be engaged to :
(a) design and/ or certify the lateral loading of the replacement works
(b) submit structural calculations and drawings to BCA for regulatory plans approval through the Construction and Real Estate Network (CORENET)
2. Upon approval of the plans, the flat owner(s), the QP supervising the works, and the Licensed Builder (LB) carrying out the replacement of the safety barrier works must jointly apply for a permit from BCA to commence structural works
3. Your appointed AWC has to submit BCA’s ‘Permit to commence structural work’ along with the approved drawings to HDB to obtain a renovation permit before commencement of the replacement works.
The replacement will have to comply with HDB’s original windows:
- Colour scheme
- Window type (i.e. casement to casement, sliding to sliding)