Duplex, triplex or quadruplex: which is right for your first investment?

It is one of the most common questions, and there is no single right answer. The right choice depends on your budget, the time you want to devote, and your risk tolerance. Here is how each format compares, clearly.

The duplex: the most accessible entry point.

Target audience. The duplex suits a first-time buyer with a tighter budget, someone who plans to live in one of the two units, or who simply wants help paying their mortgage without launching a real second career as a building manager.

Advantages. The lowest down payment of the three options, simple management (two leases, two relationships to maintain), a wide resale market since both investors and future owner-occupants can buy it.

Disadvantages. Rental yield is usually the most modest of the three formats, because fixed expenses (taxes, insurance, snow removal) are spread over only two rents. Another point: if one of the two units becomes vacant, you lose half your rental income at once, which weighs heavier proportionally than in a building with more doors.

Financing, in detail. This is often what attracts investors most to the duplex: as an owner-occupant, the down payment can start at just 5% on the first $500,000 and 10% on the excess, rather than the usual 20%. If you do not live there, the minimum down payment goes back up to 20%, since mortgage loan insurance is no longer available for a purely rental purchase. The advantage: owner-occupancy lets you enter the market with much less starting capital, plus access to the best rates and the most lenders. The disadvantage: qualification relies heavily on your personal income and debt ratio, so a tighter file can limit the amount, even if the building itself is a good deal.

Triplex and quadruplex: more income, a bit more management.

Target audience. This format attracts those who want real supplementary income, not just a helping hand, and who are ready to manage more than one or two tenant relationships. It is often the choice of a second purchase, or a first purchase for someone already comfortable with the idea of managing.

Advantages. Every dollar of fixed expense spreads over more rents, which usually improves overall yield compared to a duplex. A vacancy also hits a smaller share of your total income, making the building a bit more resilient to surprises.

Disadvantages. More leases means more tenants to manage, more upkeep, and generally more surprises in a year. The down payment in dollars is also higher than a duplex, even if the minimum percentage often stays similar, simply because the purchase price is higher.

Financing, in detail. A triplex or quadruplex stays in the residential category (2 to 4 units), so the same rules as a duplex apply: as an owner-occupant, the down payment can start at 5% on the first $500,000 and 10% on the excess, versus 20% if you do not live there. Qualification is based on your personal income, plus part of the expected rent from the other units. The advantage: you keep that favourable access to residential financing, even with more units. The disadvantage: the higher purchase price requires a larger down payment in dollars, even at an equal percentage, which can push back some first-time buyers’ timelines.

5-6 units: another world, but not out of reach.

Target audience. This format suits an investor already comfortable learning new rules, who wants to maximize yield and build a portfolio faster, or whose personal income is limited but who has a building that performs well on paper.

Advantages. The building is valued on its income, not on residential comparables: if you improve the income (see our tips on ancillary income), the building’s value can follow directly. Economies of scale are even stronger than a quadruplex, and certain insurance products, like those from the CMHC, can improve your financing conditions.

Disadvantages. Commercial financing requires more paperwork, application fees, and longer approval timelines. Fewer lenders are willing to finance this type of building, and management is even more demanding than a quadruplex.

Financing, in detail. You move into a completely different category: the down payment, rate and amortization are calculated on the building’s net operating income and a capitalization rate, not just your personal profile. The advantage: a well-performing building can open doors even if your personal income alone would not qualify for residential. The disadvantage: the process is more technical, longer, and the setup fees are higher, which requires planning your timeline carefully before diving in.

How to decide based on your situation.

Little time to devote to management? A well-located duplex or triplex often remains the best starting point. Want to maximize yield from the first purchase and ready to learn the commercial rules? A 5-6 unit building can be worth it, especially if the local market supports it.

What to remember.

There is no wrong choice between these formats, only the right choice for your current situation. The real risk is not choosing the "wrong" format: it is staying paralyzed comparing indefinitely without ever taking action.