AZ Real Estate Partners
What Is an Option to Purchase?
Ontario Buyer’s Complete Guide
An option gives you the right to buy a property without the obligation — but that flexibility comes at a cost you need to understand before you sign.
Option Fee
APS vs Option
Buyer Strategy
What exactly is an Option to Purchase?
An Option to Purchase is a contractual agreement where a buyer pays an option fee to secure the exclusive right to purchase a specific property at a fixed price within a defined period. The seller cannot sell the property to anyone else during that period. However — and this is critical — only the seller is legally obligated to wait. The buyer is not required to proceed. Under Ontario contract law and real estate practice, an unexercised option simply expires, with the fee retained by the seller as compensation.
How an Option to Purchase Works — Step by Step
Key Takeaways
- Buyer has the right, not the obligation — only the seller is bound during the option period
- Price is locked in — market appreciation or depreciation doesn’t change the agreed price
- Option fee is the cost of flexibility — treat it as a sunk cost when evaluating the strategy
- Deadline is firm — a missed exercise window means the option is gone; you cannot force the purchase afterward
Option to Purchase vs. Standard APS
| Factor | Option to Purchase | Standard APS |
|---|---|---|
| Buyer’s obligation | No obligation to purchase | Must complete the transaction |
| Seller’s obligation | Cannot sell during option period | Must complete the transaction |
| Upfront payment | Option fee (usually non-refundable) | Deposit (held in trust) |
| Price flexibility | Fixed for the option period | Set at time of signing |
| Best use case | Buyer needs time to confirm financing or sell existing home | Buyer is ready and committed to purchase |
When Does an Option to Purchase Make Sense?
Bridge between properties
You want to buy before selling your current home, but need flexibility in case your sale takes longer than expected
Financing still in progress
Mortgage approval or fund consolidation isn’t finalized yet, but you don’t want to lose the property to another buyer
Lease-to-own arrangements
A tenant who is renting a commercial or residential property wants the right to purchase it before their lease expires
Pre-construction reservations
Developers sometimes use option arrangements to allow buyers to reserve a unit before the formal purchase process opens
Risks You Need to Understand
- Option fee is typically non-refundable — if you don’t proceed, the seller keeps it as compensation for holding the property
- Vague exercise notice requirements — contracts that don’t clearly specify how to exercise the option can lead to disputes
- Market downside risk — your price is locked in; if values drop significantly during the option period, you’re still buying at the agreed price
- Seller breach risk — if the seller violates the agreement and sells to someone else, enforcement requires legal action
My Professional Take
An Option to Purchase is one of the more underused tools in Ontario real estate — and also one of the most frequently misunderstood. In my experience, buyers sometimes approach option agreements thinking of them as a “soft commitment” that gives them a free pass to walk away. That’s true — but the option fee you pay is real money, and it’s almost never coming back.
Before signing any option agreement, I always encourage buyers to ask three questions: Why can’t I just write a firm offer with conditions? What’s my realistic plan to complete the purchase within the option period? Have both my agent and lawyer reviewed every term in the contract?
When used correctly — especially in bridge scenarios or lease-to-own situations — options are genuinely powerful. When used carelessly, they’re an expensive way to delay a decision you could have made sooner. If you’re evaluating whether an Option to Purchase makes sense for your specific situation, reach out and let’s talk through it.
Frequently Asked Questions
Professional Guidance
Thinking About Using a Purchase Option?
Let’s assess whether this strategy fits your buying situation — and make sure your contract terms are airtight before you sign anything.
Arthur Zhao · Real Estate Broker · FRI · ABR · SRS · MCNE · E-PRO · GUILD Elite
VP & Branch Manager, Bay Street Group Inc.
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