Selling & Buying an HDB Flat at the Same Time — Made Clear
Selling and buying concurrently can feel overwhelming, especially for families upgrading. This guide simplifies the process and helps you move forward with clarity and confidence.
Why this process feels stressful
When selling and buying happen together, homeowners often worry about timelines, cash flow, and moving arrangements. Poor coordination can lead to delays, additional costs, or unnecessary anxiety.
Common concerns families face
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Sale proceeds timing Will the funds arrive in time to pay for the next flat?
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Finding the next home Is there enough time to secure the right replacement unit?
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Interim housing concerns How to avoid being left without a place to stay?
How to Sell and Buy an HDB Flat (Full Process & Timeline)
A step-by-step guide covering Selling, Buying, and Contra.
Safest approach for most homeowners relying on CPF proceeds.
- Check MOP, budget, and loan readiness (HDB loan or bank IPA)
- Keep buffer for fees, moving cost, and timeline gaps
- Submit Intent to Sell, start marketing, conduct viewings
- Negotiate price & timeline, buyer issues and exercises OTP
- Submit Intent to Buy, shortlist flats, secure OTP
- Align completion dates to reduce interim housing needs
- Resale application submission, endorsement, HDB acceptance
- Resale approval granted, completion appointment & key handover
Chart Overview (Resale Flow)
Guideline-
Sellers: Intent to Sell
Start your sale journey and prepare key documents.
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Buyers: HFE letter
Confirm eligibility and budget before committing.
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Market & search
List the flat / shortlist suitable resale homes.
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Agree price + grant OTP
Seller grants OTP once price & terms are confirmed.
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Request for Value (if needed)
Buyer submits Request for Value where applicable.
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Buyer exercises OTP
Move forward to resale application submission.
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Submit resale application
Both parties submit their portions online.
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HDB verification
HDB reviews documents and may request clarifications.
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HDB accepts application
Acceptance once submission is complete & valid.
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Endorse documents & pay fees
Both parties endorse and pay required fees.
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HDB grants resale approval
Approval issued and completion is scheduled.
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Completion appointment
Sellers and buyers attend the appointment.
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Final payments & disbursements
Loan/CPF/cash handled per completion statement.
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Keys handover
Buyer collects keys and the transaction completes.
For homeowners with strong cash/CPF buffer and a clear selling deadline.
- Confirm loan readiness without relying on sale proceeds
- Secure the flat (OTP exercised) and plan timelines backwards
- Launch marketing immediately; aim for committed buyer early
- Align completion dates to reduce overlap costs
- Manage potential overlap costs (loan/rent + existing home costs)
- Execute move and handover cleanly
Contra links your sale and purchase so proceeds can be applied toward your next HDB resale.
- * Refunded CPF savings and cash proceeds from the flat sale cannot be used for the payment of stamp duty and legal fees.
- Confirm both transactions can be structured as a linked case
- Plan OTP dates and completion dates early with buffers
- Secure buyer (OTP exercised), then secure next resale (OTP exercised)
- Align submission dates so timelines stay linked
- Submit as a linked case; aim for same-day completion where possible
- Reduce interim housing needs with tight coordination
Can I sell and buy on the same day?
Yes. With proper coordination, completion dates can be aligned to reduce interim housing needs.
Do I need cash upfront?
Keep a buffer for stamp duty, legal fees, admin/valuation fees, and moving costs—especially if timelines don’t align perfectly.
When is Contra most useful?
When you want a smoother transition and to use sale proceeds toward your next HDB resale purchase with linked timing.
Can refunded CPF and cash proceeds be used for stamp duty/legal fees under Contra?
No. * Refunded CPF savings and cash proceeds from the flat sale cannot be used for the payment of stamp duty and legal fees.
The smoothest transitions happen when selling and buying timelines are planned together early.
Get clear guidance before you make your next move. Speak to a trusted advisor and plan your next step with confidence.