Assignments are the escape hatch of pre-construction — and one of the most misunderstood transactions in Ontario real estate. Here's how they actually work in a Caledon context.
What an Assignment Actually Is
When you buy pre-construction, you own a contract, not a house. An assignment sells that contract: the assignor (original buyer) transfers rights and obligations to the assignee (new buyer), who steps into the deal and closes with the builder. The home never changes hands twice — it closes once, in the assignee's name.
Builder Consent Is Everything
Nearly every GTA builder agreement — including those used in south Caledon communities — prohibits assignment without written consent. Expect: an administration fee (commonly $5,000–$15,000, sometimes more), a requirement that the assignee be approved, and often a clause barring you from advertising the unit on MLS or publicly. Breaching the no-advertising clause is a genuine deposit-risk event. Step one of any assignment is always: pull out the APS and read the assignment clause.
The Money Mechanics
A typical assignment price = deposits already paid + negotiated profit (or minus a loss). Example: original price $780,000, deposits paid $80,000, market now values the contract at $840,000. The assignee pays the assignor $140,000 ($80K deposit reimbursement + $60K profit) and assumes the remaining $700,000 obligation to the builder at closing, plus closing costs.
Tax Treatment — Where People Get Hurt
- Income, not capital gains: profits from assigning residential contracts are generally taxed as fully includable business income under current CRA treatment.
- HST on assignments: assignment sales of new residential contracts are subject to HST on the assignment consideration — factor it into pricing rather than discovering it after.
- Rebate knock-ons: the assignee's HST rebate eligibility at final closing depends on the assignee's own use — the rebate rules reset around the person actually closing.
Why Assignments Happen in Caledon Specifically
Multi-year build timelines meet life: job relocations, family changes, rate-qualification changes between signing and closing. In corridors like Mayfield with heavy pre-construction volume, a steady assignment market exists in most conditions — but pricing power swings with the resale market. In softer markets, assignors compete against the builder's own unsold inventory, which caps what buyers will pay. Check the current market snapshot before setting expectations.
For Assignees: The Diligence List
- Read the original APS in full — you inherit every clause, including closing adjustments and development-charge caps (or their absence).
- Verify deposits actually paid, with builder statements.
- Confirm builder consent in writing before money moves.
- Budget final closing costs on the original purchase price plus your assignment premium.
- Use a lawyer who does assignments weekly, not occasionally.