A builder offered to buy your house. Get an independent value check first

Unsolicited offers from builders and investors show up regularly across Toronto's older, low-rise neighbourhoods. Some are fair reflections of what the property is worth. Many are priced hoping the homeowner has never separately valued the property as development land, which is a very different number from a standard resale valuation.

Two different valuations, one property

A resale appraisal looks at your home as a place to live: condition, layout, updates, and comparable sales of similar houses nearby. A builder's valuation looks past the house entirely and prices the lot based on permitted density, dimensions, and what can be built and sold once construction is complete. These two exercises can produce very different numbers for the same address.

Why the house itself barely factors into a builder's number

Because a builder's offer is derived from what will replace your home rather than the home itself, the condition of your kitchen or the age of your roof is nearly irrelevant to their math. What matters is lot width, depth, setbacks, and zoning, along with the eventual sale value of whatever gets built minus construction costs and profit margin.

• Lot width and depth often determine severance or multiplex potential
• Recent zoning changes have expanded what many residential lots allow
• Heritage designations or protected mature trees can restrict development value

Get your own read before responding to an off-market offer

Before accepting or countering an unsolicited offer, it is worth getting an independent estimate of value from two angles: what the property would fetch as a straightforward resale, and what it might be worth as a development site given current zoning. Comparing both against the builder's number tells you whether the offer reflects genuine value or simply hopes you have not checked.

Testing the number against the open market

The main downside of accepting an off-market offer is that no other buyer competed for it. If an independent valuation suggests real development value, listing the property openly and marketing it to multiple builders often produces a meaningfully higher price than the first offer that landed in the mailbox.

Terms matter alongside the number

A somewhat lower offer with a firm price, a flexible closing date, and no lingering conditions can be worth more in practice than a higher number attached to a long due diligence period and an easy exit for the buyer. Weigh the full offer, not just the headline figure, once you know what your property is genuinely worth on both bases.