I have a current HDB flat and want to upgrade to a bigger HDB flat—should I buy first or sell first, and what does the timeline look like?

For upgrading from your current HDB flat to a bigger HDB flat in Singapore, sell your current flat first to avoid complications with the Minimum Occupation Period (MOP), eligibility rules, and the need to secure temporary housing.

Key Reasons to Sell First

• HDB requires you to have fulfilled the MOP (typically 5 years) on your current flat before buying a resale HDB. You must also not own any private property.
• Buying first while owning an HDB counts as a second property, potentially disqualifying you from HDB loans or grants, and you'd need to secure approval for resale HDB purchase under the same household rules.
• Selling first ensures you have sale proceeds for the downpayment on the larger flat and avoids bridging loans or renting temporarily.

Recommended Timeline

1. Check Eligibility (1-2 weeks): Confirm your current flat's MOP is met via HDB portal. Use EdgeProp's HDB tools to assess affordability and resale value of your flat.
2. List and Sell Current Flat (2-4 months): Get valuation on EdgeProp listings. Aim for a quick sale in a strong market; typical resale transaction completes in 8-12 weeks after Option to Purchase (OTP).
3. Secure Temporary Housing (1-2 months overlap): Rent an HDB flat (max 1 year for resale eligibility) or stay with family during the gap.
4. Buy Bigger HDB (1-3 months post-sale): Apply for HDB resale OTP on a larger 4/5-room flat. Complete within 8-12 weeks. Use CPF Ordinary Account (OA) savings and sale proceeds for payment.
5. Total Process: 4-9 months, depending on market speed and your flat's location/demand.

If buying a resale HDB first is unavoidable (e.g., rare family circumstances), apply for HDB's resale concurrence first, but this risks rejection if your household doesn't qualify. Consult HDB directly or browse EdgeProp for current resale HDB listings to start planning.