Conveyancing in Singapore: a series from OTP Law Corporation, Part 3 of 12
If there is one document in the entire Singapore property transaction process that deserves more attention than it typically receives, it is the Option to Purchase. Buyers and sellers alike tend to treat it as a formality, a receipt confirming that a deal has been struck. In law, it is considerably more than that: it is a binding contract in its own right, and the terms within it shape everything that follows.
What an OTP Actually Is
An Option to Purchase is granted by a seller to a buyer, in exchange for an option fee, and gives the buyer the exclusive right, for a fixed period, to buy the property on the terms stated in the OTP. Crucially, the seller is bound from the moment the OTP is granted: they cannot sell to someone else, or renegotiate the price upward, while the option remains valid. The buyer, by contrast, is not yet bound to complete the purchase. They can choose to let the option lapse, forfeiting the option fee, or exercise it, at which point both parties become contractually bound.
This asymmetry is deliberate and is what buyers are, in effect, paying for with the option fee: the certainty of an exclusive window in which to arrange financing and conduct due diligence, without the risk of the seller accepting a better offer in the meantime.
The Key Terms to Read Closely
The option fee. For HDB resale flats, this is conventionally capped at S$1,000. For private resale property, it is typically around 1% of the purchase price, though this is a matter of market practice and negotiation rather than a fixed legal requirement.
The option period. This is the window during which the buyer may exercise the option. For HDB resale transactions, this is commonly 21 days. For private resale, two weeks is typical market practice, though it is freely negotiable between the parties.
The exercise fee. Upon exercising the option, the buyer pays a further sum, the exercise fee, which brings the total deposit paid (option fee plus exercise fee) up to the market-standard deposit for the transaction, commonly around 5% of the purchase price for private resale property. The deposit is often held by the seller’s lawyers as stakeholders. What this means is that the lawyers cannot release the money to the sellers unless certain conditions are met.
Default by Buyer. If the buyer, having exercised the option, subsequently fails to complete without lawful excuse, the consequences go beyond simply losing this deposit: the seller can also sue the buyer for any further loss suffered as a result, for instance, if the property ultimately has to be resold at a lower price. The deposit forfeited is not automatically the limit of the buyer’s exposure.
Conditions attached to the OTP. An OTP can, and often should, include conditions. Common are, conditions relate to matters outside either party’s direct control, such as the sale being subject to specific regulatory approvals (for instance, HDB’s approval of the resale application, or JTC’s approval for industrial or JTC-related property), subject to the buyer’s solicitors being satisfied with the results of legal requisitions raised against the relevant authorities, subject to an existing tenancy over the property, or, where the buyer is a foreigner purchasing property that requires it, subject to approval from the Land Dealings Approval Unit (LDAU). These conditions need to be drafted carefully. A poorly worded condition can create more ambiguity than protection.
A Case Where the Details Mattered
I once advised a seller who had granted an OTP on a private resale unit with a standard two-week option period. As the deadline approached without the buyer exercising, she began speaking with a second interested party about the property, but had, fortunately, not yet granted that second party an OTP of her own. On what turned out to be the very last day of the option period, the first buyer exercised the option after all, and because no OTP had been granted to anyone else in the meantime, the sale proceeded with the first buyer without complication. It could easily have gone the other way: had she granted a fresh OTP to the second party while the first option was still technically capable of being exercised, she could have found herself contractually bound to sell the same property to two different buyers, a situation with no good outcome for a seller. The lesson is a simple one worth remembering: a seller should check carefully when the first option expires before granting a new OTP to another buyer.
Why the OTP Deserves Legal Review, Not Just a Signature
Because the OTP is the point at which the seller becomes bound and the buyer’s rights crystallise, it is the single most important document to have reviewed before either party signs or accepts it, not after. A lawyer reviewing an OTP before it is granted or exercised can check that the option period and fee structure are correctly stated, that any conditions are clearly and enforceably drafted, and that the description of the property and its terms match what was actually agreed. Once an OTP is exercised, most of these issues become very difficult, and sometimes impossible, to correct.
Frequently Asked Questions
What happens if I let the option period lapse without exercising it? The option fee is forfeited to the seller, and the seller is free to sell the property to someone else. You have no further claim on the property.
Can I negotiate the terms of an OTP after it has been granted? Generally, no. Once granted, the OTP’s terms are fixed; if you want different terms, this needs to be negotiated before the OTP is issued, or the seller would need to agree to grant a fresh OTP with revised terms, which they are under no obligation to do.
Is the option fee refundable if I change my mind? No. If you choose not to exercise the option within the option period, the fee is forfeited. This is the seller’s compensation for having taken the property off the market during that period.
What kinds of conditions are typically attached to an OTP in Singapore? Making an OTP conditional on the buyer securing financing is actually uncommon in Singapore practice; buyers are generally expected to have financing arranged, at least in principle, before exercising an option. Conditions are far more often used for matters genuinely outside the parties’ control, such as the sale being subject to HDB or JTC approval, subject to satisfactory legal requisitions, subject to an existing tenancy, or, for a foreign buyer, subject to LDAU approval. Any condition used should be clearly drafted to state what happens, including to the option fee, if the condition is not met within the option period; a vague condition can create disputes rather than prevent them.
Speak to Us
Whether you are about to grant or accept an Option to Purchase, we strongly encourage having it reviewed by a conveyancing lawyer before you sign, not after. A short consultation at this stage is inexpensive insurance against the kind of dispute described above. Contact OTP Law Corporation as soon as terms are agreed in principle, before anything is put in writing and signed.
This article is intended for general information purposes only and does not constitute legal advice. Option fee conventions, option periods, and deposit percentages referenced above reflect common market practice as at the time of writing and are not fixed legal requirements; terms should be individually negotiated and reviewed for each transaction.







