Why every lender may value your home differently

Homeowners assume a house has one value and lenders simply react to it. In practice, the number a lender uses to size up a mortgage can shift depending on which appraiser they send, how recent the comparable sales are, and how conservative that particular institution's underwriting culture is. Understanding this helps explain why two lenders can look at the same property and land on different figures.

Appraisal management differs by lender

Some lenders keep a rotating panel of independent appraisers assigned through an appraisal management company, while others lean more heavily on automated valuation models for straightforward, low-risk files. An AVM pulls from recent sales data and property characteristics without ever setting foot inside your home, so it can miss renovations, layout issues, or neighbourhood nuances that a human appraiser would catch.

Conservative versus aggressive comparable selection

Two appraisers working from the same MLS data can still reach different conclusions depending on which comparable sales they weight most heavily. One might favour the closest geographic matches even if they sold eight months ago; another might prioritize recency and pull from a slightly wider radius. Both approaches are defensible, and both can produce a different bottom-line number.

• How far back the appraiser looks for comparable sales
• Whether they include pending or only closed sales
• How much weight is given to lot size versus interior finish
• Whether recent renovations are documented with permits or receipts

Why this matters beyond the mortgage

If you are only ever shown one lender's number, you may walk away thinking that figure is the ceiling or floor of what your home is worth. It isn't. It's one professional's opinion, filtered through one institution's risk appetite. A separate, independent valuation — not tied to any single lender's approval process — gives you a clearer, unbiased read on where your property actually sits in the market.

Getting a second opinion before you commit

Before you rely on any single valuation to make a decision about borrowing, selling, or estate planning, it is worth getting a market-based opinion of value that isn't influenced by loan approval targets. That number, compared against what a lender's appraisal says, tells you whether you're dealing with a genuinely conservative market or just one appraiser's cautious read.