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  Market Intel June 15, 2026
— Buyer Guides · June 15, 2026

What Is a Contract of Purchase and Sale for a BC Presale?

A plain-English breakdown of the Contract of Purchase and Sale in a BC presale: what is binding, what is not, and what to check before you sign.

The Contract of Purchase and Sale is the document that actually binds you. Everything else in a presale, the renderings, the brochure, the sales conversation, is marketing. The contract is the law of your deal. Here is a plain-English look at what it is and what to check before you sign.

What the contract does

The Contract of Purchase and Sale (CPS) sets out the binding terms of your purchase: the price, the specific unit, the deposit schedule, the completion mechanics, and the developer’s rights and obligations. When the building is finished, this is the agreement you complete on. If the contract and the brochure ever disagree, the contract wins.

What is binding, and what is not

Binding terms include the price, the deposit amounts and dates, the parties, and the rights each side holds. Renderings, display-suite finishes, and verbal promises from sales staff are generally not binding unless they are written into the contract or an addendum. If something matters to you, it needs to be in the document, not just in the conversation.

You usually cannot negotiate it

Unlike a resale deal, a presale contract is almost always presented on the developer’s standard terms, with little room to change them. That does not mean you sign blind. It means your job shifts from negotiating to reading: understanding exactly what you are agreeing to, and deciding whether those terms are acceptable, while you still have your rescission window to walk away.

Key things to understand before signing

  • The deposit schedule. Every date is a firm deadline. Map them to your cash flow.
  • Completion mechanics. How and when you complete, and what funding you need to have ready.
  • The estimated and outside completion dates. One is a target, the other is the real limit.
  • The developer’s reserved rights. Powers to make changes, substitute materials, or adjust the plan.
  • Assignment terms. Whether and how you can sell the contract before completion.

The contract plus the addendums

The CPS rarely stands alone. Addendums attached to it can modify the main terms and often hold the provisions that affect you most, from finishes to assignment rights. Read them as carefully as the contract itself. See our guides to what to look for in a presale contract and the documents that make up your purchase.

This is part of our Complete Guide to Buying a Presale in BC. If you want a lawyer-ready read of your contract during the rescission window, I work with Greater Vancouver presale buyers in plain language, at no cost to you. Book a consultation.

Read next

This article is general information, not legal advice. Contract terms vary by developer and project. Confirm the details with a BC real estate lawyer before signing.

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