The HDB 3-Year Restriction Rule
For newly built BTO flats, you are not allowed to hack the toilet floor and wall tiles for the first 3 years. This is because the waterproofing membrane needs time to settle.
When is a Permit Required?
Any hacking of tiles, replacement of toilet bowls (if moving the piping), or altering the layout requires an HDB permit submitted by a BCA approved contractor.
Cost of Toilet Renovation
Overlaying tiles costs around $3,000 to $5,000. Full hacking and waterproofing (for older resale flats) costs between $6,000 to $9,000.
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