To legally buy a pre-construction condo in London, you must review the builder’s complex disclosure statement and leverage the mandatory 10-day cooling-off period. Hiring a real estate lawyer during this window allows you to cap hidden development charges and understand interim occupancy rules before your deposit becomes non-refundable.
London’s skyline and surrounding neighbourhoods are rapidly expanding. With the city’s population booming as of April 2026, buying a pre-construction condominium has become an attractive option for both first-time buyers and seasoned investors. Purchasing a condo before it is built allows you to secure today’s price for a brand-new asset that will be completed years down the line.
However, buying pre-construction is vastly different from buying a resale home. The contracts provided by builders are notoriously lengthy, highly complex, and drafted entirely in the builder’s favour. 🔍 In Ontario, the process is heavily governed by the Condominium Act. Navigating these rules properly ensures you do not get hit with thousands of dollars in hidden fees on closing day. Here is a clear guide on how to safely and legally secure your new unit.
Step-by-Step Process in London, Ontario
When purchasing from a builder, you are essentially buying a promise that a building will be completed. To protect that massive financial commitment, you should follow a strict legal sequence.
Step 1: Signing the Agreement and Paying the Initial Deposit
Once you select your unit, the builder’s sales centre will present you with an Agreement of Purchase and Sale (APS) and a massive document called the Disclosure Statement. You will be required to sign the APS immediately and provide your first deposit cheque (often $5,000 to $10,000 CAD) to secure the unit. While it feels intimidating to sign right there, Ontario law provides an immediate safety net.
Step 2: Activating the 10-Day Cooling-Off Period
The moment you receive a fully signed copy of both the APS and the Disclosure Statement, a strict, legally mandated 10-calendar-day cooling-off period begins. During these 10 days, you have the absolute legal right to cancel the agreement for any reason whatsoever, without penalty, and get your deposit fully refunded. This window is your primary opportunity for legal due diligence.
Step 3: The Lawyer’s Review
During the cooling-off period, you must immediately send the massive contract to a local London real estate law firm. Your lawyer will read through the dense legal jargon and identify red flags. They will focus on capping “closing adjustments”—such as municipal development charges and utility hook-up fees—so you are not surprised by an extra $15,000 CAD bill when the building is finished.
Step 4: Managing Interim Occupancy
Once the building is constructed, you will experience “Interim Occupancy.” Because condominiums register in phases, you are allowed to move into your unit before the city officially registers the entire building. During this period, you do not own the unit yet; instead, you pay a monthly “phantom rent” to the builder. Eventually, the building registers, final closing takes place, your mortgage activates, and the title transfers to your name.
How Much Does it Cost in London?
Pre-construction condos require significant cash flow upfront. Here is a breakdown of what you need to budget for:
- Deposit Structure: Builders usually require 15% to 20% of the purchase price, spaced out over 1 to 2 years (e.g., 5% in 30 days, 5% in 90 days, 5% in 365 days).
- Lawyer Contract Review: Having a law firm review the APS during the 10-day period generally costs between $300 and $500 CAD.
- Development Charges & Adjustments: Uncapped, these can reach $10,000 to $20,000 CAD. A good lawyer will negotiate a hard cap (usually around $5,000 to $8,000 CAD).
- Final Legal Closing Fees: When the title finally transfers years later, expect standard legal fees of $1,500 to $2,500 CAD plus provincial land transfer taxes.
How Long Does the Process Take?
Patience is mandatory in the pre-construction market. From the day you sign the agreement to the day you actually move in, expect a wait of 2 to 4 years. 🕑 Delays are incredibly common due to labour shortages and supply chain issues. Furthermore, the interim occupancy period (when you live in the unit before official registration) can last anywhere from 3 to 6 months.
Frequently Asked Questions (FAQ)
Is my deposit protected if the builder goes bankrupt?
Yes. In Ontario, deposits paid for new condominium units are protected by Tarion Warranty Corporation up to a maximum of $20,000 CAD, and further protected by the fact that the builder’s lawyer must hold excess deposit funds in a secure trust account.
Can I sell my pre-construction condo before it is built?
Selling your contract before closing is called an ‘assignment sale.’ You can only do this if your lawyer successfully negotiated an assignment clause into your original APS. Builders often charge administrative fees (e.g., $1,000 to $5,000 CAD) to allow this transfer.
Do I need a mortgage pre-approval for pre-construction?
Yes. Most reputable builders in London will require you to provide a formal mortgage pre-approval letter from a recognized Canadian bank within 30 to 60 days of signing the contract, proving you have the financial capacity to close the deal years later.
What is the Tarion Warranty?
Tarion is a non-profit corporation established by the Ontario government to protect new home buyers. It ensures that builders honour their warranties regarding construction defects, water penetration, and major structural issues for up to seven years after completion.
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