SingaporeWhat is an Option to Purchase (OTP)?
An Option to Purchase (OTP) is a legally binding agreement in Singapore that gives a buyer the right — but not the obligation — to buy a property within a specified period, usually after paying an option fee.
What the Law Says
The Conveyancing and Law of Property Act (CLPA) governs the formation and enforceability of contracts relating to land in Singapore, including Options to Purchase.
An Option to Purchase (OTP) is not defined in statute, but it is recognised under Singapore law as a type of contract for the sale of land. It creates a legally enforceable right for the buyer (option holder) to compel the seller (option grantor) to sell the property at a fixed price within a fixed timeframe — provided the buyer exercises the option correctly and within the stipulated period.
Once granted, the OTP binds the seller: they cannot sell the property to anyone else during the option period. The buyer pays an 'option fee' (often non-refundable) to secure this right. While the CLPA does not specifically mention OTPs, section 6 confirms that contracts for the sale or other disposition of land must be in writing and signed by the party to be charged — a requirement that applies directly to OTPs.
In practice, OTPs used for residential properties (especially HDB flats and private condos) follow standard forms approved by regulatory bodies like HDB or the Council for Estate Agencies (CEA), but their legal enforceability rests on general contract and property law principles codified in the CLPA.
Statutory TextNo action may be brought upon any contract for the sale or other disposition of land or any interest in land, unless the agreement upon which such action is brought, or some memorandum or note thereof, is in writing, and signed by the party to be charged or by some other person thereunto by him lawfully authorised.
— Conveyancing and Law of Property Act, s. 6 — Contracts for sale of land
What to Do
Ensure the OTP is in writing and signed by both parties.
Pay the option fee (usually 1% of purchase price for private property; $500–$1,000 for HDB resale flats).
Exercise the option within the validity period (typically 14 calendar days for private property; 21 days for HDB resale flats).
Sign the Sale and Purchase Agreement (SPA) immediately after valid exercise.
Engage a conveyancing lawyer to review the OTP and handle registration.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.