Undivided Condos in Montreal: What Buyers and Sellers Really Need to Know
By Michele-V. Guzzo, Real Estate Broker — MVG Immobilier | Royal LePage Urbain
You’re visiting an apartment in Rosemont. High ceilings, exposed brick, a tree-lined street. The price is reasonable — noticeably below market. Then your broker mentions: “It’s undivided.”
That word changes everything. Not because undivided condos are something to avoid — they can be excellent purchases. But because they operate under a completely different set of rules than divided condos, and not knowing those rules is expensive. Here’s what you need to understand, whether you’re buying or selling.
What Exactly Is an Undivided Condo?
In a divided condo, you own your unit outright. It has its own lot number in the land registry, its own tax bill. You can sell or refinance without consulting anyone else.
An undivided condo is different. You hold a percentage of the entire building — not an isolated unit. No individual lot number. You’re a co-owner of the whole, with an exclusive right of use over your portion, defined in an indivision agreement signed with the other co-owners.
This model is common in the duplexes and triplexes of Montreal’s older neighbourhoods — buildings purchased collectively that were never formally divided in the land registry. In Mile-End, the Plateau, Rosemont, or Villeray, it’s often the only way to access a character apartment on a beautiful red-brick street.
Financing: Where Things Get Complicated
This is the first shock for many buyers — and it usually arrives at the worst possible moment, mid-way through a purchase agreement.
Two financial institutions in Quebec finance undivided condos: Desjardins and the National Bank. Together they cover nearly the entire market. Major Canadian banks generally don’t touch this legal structure, which is unique to Quebec.
Second reality: the minimum down payment is 20%, no exceptions. No 5% option. No CMHC insurance. Twenty percent, regardless of the property’s price.
For a seller, this has a direct consequence: your pool of potential buyers is smaller. Factor that in when pricing your property and setting your expectations.
For a buyer, it means something else: verify your financing before falling in love with the apartment. Confirm that your institution is accepted under the indivision agreement. Some agreements even specify which lender all co-owners must use — that’s not negotiable.
What Many Sellers Don’t Know
The Right of First Refusal
In most indivision agreements, your co-owners have the right to purchase your share before any outside buyer — at the same terms. What many sellers don’t realize: it’s generally the buyer’s responsibility to formally request that the co-owners waive this right. If this step is skipped or done incorrectly, the transaction can be blocked or significantly delayed.
The Bank Evaluates the Entire Building
Your buyer may have an impeccable financial profile — but if the building has problems, the loan can be refused. Before approving financing, the bank mandates a certified appraiser who doesn’t just look at the unit. They evaluate the entire building: roof, foundation, general condition. Everything counts. As a seller, make sure the building is in good apparent condition before showing the property.
Two Location Certificates, Not One
A single location certificate is generally not enough for an undivided condo. You need two: one for the unit, one for the entire building. The unit certificate is especially important — it’s the document that specifies your exact ownership share. If it’s missing, expired, or inaccurate, the transaction stalls or falls apart. Have these documents ready before listing.
The Indivision Agreement: The Central Document
This is the foundation of any undivided co-ownership. It defines usage rights, shared financial obligations, the right of first refusal, conditions of sale, and procedures in the event of a disagreement between co-owners.
If it’s absent, poorly drafted, or hasn’t been updated in a decade, you have a problem — whether you’re the buyer or the seller. Have it reviewed by a notary. Update it before putting your property on the market.
The Rental Question: A Rule You Cannot Ignore
This is where many undivided condo owners find themselves in an irreversible situation.
The vast majority of indivision agreements prohibit renting out the unit. But the real reason you don’t rent out an undivided condo isn’t contractual — it’s legal.
Under Article 1958 of the Civil Code of Quebec, an undivided co-owner cannot repossess a unit they have rented to a third party. The tenant holds the right to maintain occupancy — they can remain in the dwelling for as long as they wish, provided they respect their lease. You cannot remove them to move back in, to sell the unit vacant, or for any other reason. Exceptions exist, but they are so rare and so narrowly defined that they virtually never apply to the typical Montreal undivided condo owner.
In practice: if you rent out your undivided condo, you lose the ability to ever reclaim the unit. The tenant becomes, for all practical purposes, untouchable. The rule is simple — don’t do it.
For an owner-occupant buyer, this reality flips into an advantage: you know that every one of your neighbours is also an owner-occupant, just like you. It’s a form of natural selection that protects the quality of life in the building.
What Buyers Need to Verify Before Making an Offer
Before signing anything on an undivided condo, verify these five points:
- 1. Your financing. Confirm that you have 20% down payment available and that your financial institution is accepted under the indivision agreement.
- 2. The indivision agreement. Request it, read it carefully, ideally with a broker familiar with this type of property. Review the rules around the right of first refusal, shared expenses, and resale conditions.
- 3. Both location certificates. The unit certificate and the building certificate. Confirm that your ownership share is clearly defined and current.
- 4. The building’s condition. The bank will appoint its own appraiser. If the building is in poor condition, it affects your loan approval — regardless of your personal file.
- 5. Your plans around renting. If you have any doubt about your occupation timeline, an undivided condo is not the right fit. Article 1958 of the Civil Code of Quebec leaves no room to manoeuvre.
An Often-Overlooked Advantage: Property Taxes
An undivided building generates a single municipal and school tax bill for the entire property, divided among co-owners according to their respective shares. Unlike a divided condo where each unit receives its own tax assessment, this structure can represent a real saving for owner-occupants.
Why Expertise Matters More Here Than Anywhere Else
I own an undivided condo in Mile-End myself. That’s not a line on a resumé — it’s direct knowledge of the process, the financial institutions involved, and the day-to-day realities of undivided co-ownership.
I work every day in the neighbourhoods where this type of property is most present: Mile-End, Plateau-Mont-Royal, Rosemont–La Petite-Patrie, Villeray. I know the pitfalls, the qualified buyers, and how to structure a transaction so it closes without unpleasant surprises — for either side.
Do you have a real estate project?
Whether you’re buying, selling, or investing, I can help you make the best decision for your situation. A 30-minute conversation, at no cost and no pressure.
MVG Immobilier — your strategic real estate partner.
Sources
Tribunal administratif du logement — Repossession of a Dwelling: Rules Applicable to Undivided Co-owners (2025)
Civil Code of Quebec — Article 1958, Article 1936
National Bank of Canada — Divided vs. Undivided Co-ownership: Key Differences (2022, updated 2025)
XpertSource.com — Buying an Undivided Co-ownership: Good or Bad Idea? (June 2025)