There are two ways to decide what a property is worth, and almost everything you’ll learn in this course follows from the difference between them.
The first way: a property is worth what the last comparable one sold for. This is how houses and condos are priced. An appraiser finds three similar recent sales, adjusts for the finished basement and the extra bathroom, and lands on a number. Notice what’s underneath that number: other people’s willingness to pay. Nothing about the property itself — no income, no output — sets the price. When buyers are optimistic, comparables rise and your property rises with them. When sentiment leaves the market, there is nothing underneath the price to catch it, because the price was never attached to anything the property earned.
The second way: a property is worth what it earns. This is how apartment buildings are priced — five units and up, everywhere in the industry, by every lender and every serious buyer. The formula fits on a napkin:
Value = Net Operating Income ÷ Cap Rate
Net operating income is what the building actually produces: all the rent it collects in a year, minus everything it costs to run — taxes, insurance, utilities, maintenance, management. The cap rate is the yield the market currently demands for that income in that location — think of it as the price of a dollar of building income. If a building produces $120,000 of NOI and buildings like it trade at a 5.5% cap rate, it’s worth about $2.18 million. Not because a similar building sold down the street — because this building earns this income.
Sit with what that difference does.
A house’s value floats on sentiment. A building’s value stands on a rent roll — a stack of leases with names and dollar amounts on them. There is a floor under the price, and the floor is the income.
Here is the implication: if value is income divided by yield, then anyone who can raise the income can raise the value. Close the gap between what units rent for and what the market pays. Cut the utility waste. Add a unit where zoning allows. Every new dollar of annual income, divided by that cap rate, becomes twenty dollars of building value at a 5% cap. You cannot do any version of this with a house — you can’t renovate your neighbours’ sale prices. Owners of income property hold a lever that owners of everything else simply do not have.
Ontario watched a brutal, expensive demonstration of this difference over the last few years. Investors who bought condos priced the first way — on the hope that the next buyer would pay more — saw the hope run out. Through the same period, unglamorous buildings in unglamorous markets kept collecting rent, kept paying down their mortgages, and kept being worth what they earned. If you want the full account with the data, it’s here: Cash Flow vs. Hope. It’s not required reading for this course, but it’s the same lesson told through a market’s mistake.
For now, carry one sentence into Lesson 2: buildings are priced on income, and income can be grown. Next, we’ll look at why one building beats a handful of houses — honestly, including the parts that don’t.
Go deeper → What you're actually buying
Everything in this course is education, not advice. Figures are illustrations, not projections.