
For high-value residential transactions, the sequence of legal steps matters as much as the price negotiated. In Singapore’s landed property market, the Option to Purchase (OTP) is the document that sets everything in motion. It’s a legally binding contract that grants you the exclusive right to buy the property at a negotiated price within a stipulated period, usually 14 days, in exchange for a 1% booking fee.
It’s not a letter of intent or a gentleman’s agreement. It’s a formal commitment that protects your position while you finalise financing, conduct due diligence, and prepare for completion. Understanding what the OTP commits you to, and what it protects you from, is fundamental before you proceed.
Procuring the OTP for Your Landed Property
The Option to Purchase is a formal contract issued by the seller. In exchange for the option fee, the seller grants you the exclusive right to purchase the property at the agreed-upon purchase price during the validity period. The seller is legally barred from accepting other offers or issuing another OTP during this window, though they may occasionally still conduct viewings for backup interest.
The Option Fee
For private landed properties, the option fee is typically 1% of the agreed purchase price. On a S$5 million home, that’s S$50,000 paid upfront. This isn’t a deposit in isolation; it becomes part of the overall down payment if you proceed. If you don’t proceed with the purchase, the option fee is forfeited entirely to the seller.
OTP Validity Period
Understanding how long to exercise the option to purchase rights is therefore not a technicality. It’s a financial safeguard. The standard OTP validity period for private resale properties is 14 days, though buyers and sellers can negotiate an extension to 21 days or longer by mutual agreement. The expiry is usually set at 4.00 pm on the final day. Miss that deadline and the option fee is gone, with no legal recourse.
Can the Seller Cancel the Option to Purchase?
No, once the OTP is issued and the option fee has been paid, the seller is legally bound by the document. They cannot cancel or withdraw the offer within the validity period. If a seller attempts to back out, they’d be in breach of contract and exposed to legal action. The OTP exists precisely to protect the buyer from this scenario.
Due Diligence During the OTP Window
Fourteen days is a short window for a multi-million dollar decision. During this period, you should take the following steps to ensure your purchase proceeds smoothly, your financing is secured, and your legal position is fully protected:
Engage Your Conveyancing Lawyer Immediately
The moment you receive the OTP, engage a conveyancing lawyer. Your lawyer’s first action will be to lodge a caveat with the Singapore Land Registry, placing an official notice of your interest in the property. This prevents the seller from dealing with the property in ways that could affect your purchase.
Your conveyancing lawyer will also conduct title searches, review encumbrances, and manage all financial transfers through to completion.
Convert Your IPA to a Formal Letter of Offer
If you’ve followed best practice, you’ll already have an In-Principle Approval (IPA) from your bank before obtaining the OTP. The 14-day window is typically used to convert this IPA into a formal Letter of Offer confirming the approved loan quantum. Failing to secure financing within the OTP validity period is one of the most common reasons buyers forfeit the option fee.
Final Inspection and Inventory Confirmation
Before securing the OTP, it is crucial to conduct a thorough physical inspection of the property, covering its structural condition and all mechanical and electrical systems. Additionally, ensure the Inventory List is confirmed in writing, specifying exactly which fixtures and fittings are included in the sale. Because landed properties are typically sold on an “as-is, where-is” basis, resolving these details before the OTP is issued protects your deposit and prevents costly post-purchase disputes.

Exercising the OTP and Formalising the Sale
When due diligence is complete and financing is confirmed, it’s time to act. Knowing how to exercise the option to purchase correctly is important: your conveyancing lawyer will prepare the Acceptance Copy of the OTP, which you sign and return to the seller’s solicitors before the deadline, accompanied by the option exercise fee.
The Option Exercise Fee
The option exercise fee is the second payment in the transaction. Combined with the initial option fee, the two payments together typically constitute the full deposit, usually between 5% and 10% of the purchase price, depending on the deal structure. On a S$5 million purchase with a 9% total deposit, you’d have paid 1% (S$50,000) upfront and a further 8% (S$400,000) on exercise.
From OTP Exercise to Completion
Once exercised, a legally binding contract of sale is formed. Your conveyancing lawyer and the seller’s solicitors will formalise the Sale and Purchase Agreement (S&P), with completion typically scheduled eight to twelve weeks later. You should also use this period to finalise your mortgage drawdown and coordinate any renovation or move-in planning.
Stamp Duty Deadline
Buyer’s Stamp Duty (BSD) and Additional Buyer’s Stamp Duty (ABSD), where applicable, must be paid within 14 days of exercising the OTP. Factor both into your total cost-of-ownership calculations before committing.
Approach Your Landed Purchase With Confidence
While the basic step-by-step framework of an OTP is identical to a standard condominium purchase, the legal due diligence, regulatory restrictions, and structural risks involved in a landed transaction are vastly more complex. From navigating LDAU citizenship approvals to investigating hidden land issues like road line plans and drainage reserves, the margin for error is razor-thin. Engaging your conveyancing lawyer immediately and securing financing early gives you the clarity to move decisively and safely when the right property appears.
Brand New Land develops newly launched landed properties in Singapore, and can connect you with the legal and financial expertise needed to proceed with confidence. Reach out to us to start the conversation.
This article is for informational purposes only and does not constitute legal or financial advice. Consult a qualified conveyancing lawyer before proceeding with any property transaction.