Second-Storey Addition vs. Moving: The Math for Toronto Families

For growing families in areas like Leaside, Lawrence Park, or East York, the need for space eventually collides with a difficult choice: do we sell the home we love and move, or do we build a second-storey addition?

The Transaction Math

Most homeowners look at construction quotes and think moving is cheaper. Let’s look at the numbers. Selling a $1.8M home and buying a $2.5M home in Toronto incurs roughly:

• Real estate commissions (selling): $45,000 to $90,000 (2.5% to 5%)
• Double Land Transfer Tax (buying): $53,200 (both municipal and provincial)
• Legal and moving fees: $6,000 to $10,000
• Renovations to the new home: $50,000+ (no resale home is exactly how you want it)

Before you buy a single square foot of extra space, you’ve spent $150,000+ on transaction fees that buy you zero equity. That same capital could cover a significant portion of an addition, adding immediate, long-term equity to your existing property.

An addition allows you to remain in the school district you love, avoid land transfer taxes, and design your family space exactly as needed.

The Construction Realities

A second-storey addition is major surgery. It requires structural reinforcement of the main floor studs, foundation checks, full mechanical routing, and a temporary roof. But done right by an experienced builder, it breathes another fifty years of life into a classic house, matching original brick and roof lines seamlessly.