Presale Contract Addendums Explained
The Contract of Purchase and Sale is rarely the whole deal. Attached to it is a stack of addendums, and they are where the developer sets the terms that matter most. This is what they are and which ones to read first.
What an addendum is
An addendum is a document attached to the contract that adds to or modifies it. On a presale, the addendums are usually drafted by the developer’s lawyers and presented as a package. Where an addendum conflicts with the main contract, the addendum ordinarily governs — which is precisely why they deserve attention rather than a signature.
The honest framing: the base contract sets out the transaction, and the addendums allocate the risk. Almost always toward the developer. That is not sinister, it is normal commercial drafting — but you should know what you are agreeing to.
The addendums you will usually see
Deposit schedule addendum
Sets out each instalment, its amount and its trigger — a fixed date, a number of days from signing, or a construction milestone. Milestone triggers are less predictable than dates, because milestones can arrive early as well as late. Check that you can fund every instalment on its worst-case timing.
Assignment addendum
Governs whether you can sell your contract before completion, and on what terms. Look for: whether consent is required, whether consent can be withheld at the developer’s absolute discretion, what fee applies (often a percentage of the price or of the profit), whether marketing is restricted, and whether assignment is barred entirely until a stated sales threshold is reached. If there is any chance you might need to exit early, this is the most important document in the package.
Substitution and specification addendum
Gives the developer the right to substitute materials, finishes, appliances and fixtures for others of “comparable” or “equivalent” quality. Comparable is doing a lot of work in that sentence, and it is generally the developer who judges it. Also check whether the developer may alter the layout, relocate structural elements, or change window sizes.
Area variance clause
States the tolerance between the marketed square footage and the delivered home, commonly expressed as a percentage. Below the stated tolerance you typically have no remedy and no price adjustment. On a small unit a few percent is a meaningful amount of space.
Disclosure of representation
Confirms who the sales staff act for. Read it carefully: the people in the presentation centre generally represent the developer, not you. They are not obliged to advance your interests in a negotiation. This is the single most misunderstood fact about buying presale, and having your own representation costs you nothing because the developer pays the commission either way.
GST and tax addendum
Confirms that taxes are payable in addition to the purchase price, and that rebate eligibility is your responsibility. Developers do not warrant that you qualify for the first-time buyer GST rebate. If your purchase price sits near a rebate threshold, model it before you sign.
FINTRAC and identity documentation
Anti-money-laundering identity verification. Administrative, and required.
Occupancy, completion and possession addendum
Defines the notice the developer must give, the interval between notice and completion, and what happens on delay. Read alongside the outside date.
What to look for, in order
- Assignment terms — your ability to exit.
- Deposit triggers — your ability to fund.
- Outside date and extension rights — your exposure to delay.
- Substitution and area variance — whether you get what you were shown.
- Developer remedies on your default, and what remedies you have on theirs. Look for asymmetry, and expect to find it.
Red flags worth a conversation
- Assignment prohibited outright, with no exception for hardship.
- Consent to assignment at the developer’s sole and absolute discretion, with a fee on top.
- Unlimited unilateral extension of the outside date, or a force majeure definition broad enough to cover ordinary business difficulty.
- Area variance with no cap, or a cap above roughly five percent.
- Substitution rights with no quality standard at all.
- Deposit instalments triggered by milestones the developer alone certifies.
None of these is automatically disqualifying. Plenty of good projects have firm terms. The point is to know which risks you are accepting and to price them into your decision rather than discover them in year three.
Can you negotiate them?
Usually not the wording, and this is where honest expectation-setting matters. Developers sell hundreds of units off one document set and will rarely redraft for one buyer.
What does move, sometimes, is the deposit schedule — splitting an instalment or pushing a date. That is a commercial concession rather than a legal redraft, and it is far more achievable. Leverage depends on timing: at an oversubscribed VIP launch you have very little; on a final release of a project two years into sales, considerably more.
Frequently Asked Questions
What is an addendum in a presale contract?
A document attached to the Contract of Purchase and Sale that adds to or modifies it. On a presale the addendums are drafted by the developer and typically govern deposits, assignment, substitution rights and completion mechanics.
Does an addendum override the main contract?
Generally yes, where the two conflict, though the contract itself will state the order of precedence. Have your lawyer confirm how yours is structured.
Can I negotiate the addendums?
The legal wording, rarely. The deposit schedule, sometimes — particularly on slower-selling projects or later release phases.
Do the sales staff at the presentation centre represent me?
No. They act for the developer. You can have your own representation at no cost to you, because the developer pays the commission regardless.
What is an area variance clause?
A term allowing the delivered home to differ in size from the marketed area by up to a stated tolerance, usually without price adjustment or remedy. Check the percentage and apply it to your actual square footage.
Which addendum matters most?
The assignment addendum, for most buyers. It determines whether you can get out if your circumstances change before completion.
Where to go next
- Disclosure Statements & Amendments — the other document you must read.
- The 7-Day Rescission Period — your window to have all of this reviewed.
- Condo Assignments — selling a presale before completion.
- The Complete Guide to Buying a Presale in BC, or browse every active Greater Vancouver presale.
This guide provides general information about buying presale property in British Columbia, not legal advice. Addendum terms vary substantially between developers — have your full contract package reviewed by a licensed lawyer during your rescission period.