For new blocks, you must complete the approved renovation works within four months from the date of the renovation permit.
For existing blocks, the approved work must be completed within one month from the date of the renovation permit.
For existing blocks, the approved work must be completed within one month from the date of the renovation permit.
This answer is based on HDB and agency guidelines, which can change. Check the latest rules on the HDB website, or ask us and we will check them for your flat before work starts.
Planning a renovation? We handle permits and approvals for you.
Get a free quoteMore questions on hdb renovation rules
- What should I do if I want to renovate my HDB flat?
- What kind of renovation work or interior design work am I permitted to carry out?
- What should I do if I want to install/replace a window?
- Who will be held responsible if the renovation work in my flat does not comply with HDB’s requirements or is unauthorised?
Related guide: How long does a renovation take in Singapore?


