The Pet, Rental, and Renovation Rules Hidden in a Condo’s Governing Documents
Why GTA buyers must read the Declaration, By-laws, and Rules BEFORE closing — not after they move in
What binding restrictions are hidden inside a condo’s governing documents?
An Ontario condo is governed by three tiers of documents, ranked in authority as Declaration > By-laws > Rules, with the Condominium Act, 1998 sitting above all of them. Pet bans, breed/weight/number limits, Airbnb and minimum-lease-term restrictions, and flooring or structural renovation requirements are scattered across these tiers. They bind you — and your tenants — the moment you close, and are extremely hard to change: amending a pet clause in the Declaration, for example, requires the written agreement of 80% of all owners.
Source: Condominium Authority of Ontario (2025); Condominium Act, 1998
When I take a buyer through a condo, the thing that quietly wrecks people later is rarely the price or the floor — it is the stack of governing documents no one wants to read. You are not just buying a unit; you are inheriting a rulebook that decides whether you can keep a dog, list on Airbnb, or rip out the carpet for hardwood. These rules attach to you at closing, and once you have moved in and discovered a problem, you almost never get to change them by personal preference. Here is how the three tiers work, where each restriction hides, and exactly how to check before you close.
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The hierarchy that decides everything: Declaration > By-laws > Rules
Every Ontario condo corporation is governed by three tiers with a strict order of authority. The Declaration is the constitution and sits highest; the By-laws govern how the corporation runs and cannot contradict the Declaration; the Rules govern day-to-day living and cannot contradict either. Above all three sits the Condominium Act, 1998, which nothing may violate. According to the Condominium Authority of Ontario (2025), a lower document may not be inconsistent with or contradict a document above it. This order is not academic — it determines how hard a given restriction is, and how hard it is to change.
💡 This is the point buyers miss most, and it matters most. According to the Condominium Authority of Ontario (2025), Rules must be reasonable — they must promote the safety and welfare of owners and prevent unreasonable interference with the use and enjoyment of units and common elements, and an unreasonable rule can be challenged at the Condominium Authority Tribunal. The Declaration, by contrast, is held to no standard of reasonableness at all. That means an outright pet ban written into the Declaration is valid and enforceable even if it strikes you as harsh. When you read the documents, a restriction buried in the Declaration carries far more weight than the same words in the Rules.
Pet restrictions: bans, weight and breed limits, and what actually holds up
If a corporation wants to prohibit dogs, certain breeds, or all pets, the proper place is the Declaration. According to the Condominium Authority of Ontario (2025), a complete pet prohibition contained in the Declaration is valid and enforceable, and section 17(3) of the Condominium Act requires the corporation to enforce its own governing documents. Tenants cannot escape this either: even though an Ontario landlord may not put a no-pets clause in a lease, a tenant must still comply with a pet prohibition in the Declaration and any restrictions in the Rules. Two nuances: first, grandfathering — if past boards ignored violations, existing pets may need to be exempted by written agreement, and that exemption dies with the animal rather than passing to the unit. Second, service animals are protected under Ontario’s Human Rights Code, which overrides a condo’s pet policy.
Leasing and Airbnb: minimum lease terms, short-term bans, and two separate layers of permission
Investors should scrutinize this section hardest. Most leasing restrictions live in the Declaration, By-laws, or Rules, commonly as a minimum lease term (for example, prohibiting any lease shorter than one year or six months — which effectively kills Airbnb). According to the Condominium Authority of Ontario (2025), a corporation generally has authority to restrict or ban short-term rentals, provided it follows the required process and grounds the restriction in its governing documents. Critical point: municipal permission and condo permission are two separate gates. Even if the City of Toronto says you qualify for short-term-rental registration, your condo Declaration can still say no — and you must clear both. Separately, section 83 of the Condominium Act requires an owner to notify the corporation within 10 days of leasing or renewing (providing a lease summary or a copy of the lease, including the rent amount) and to give the tenant copies of the governing documents.
⚠️Buy a unit with an unauthorized alteration and no section 98 agreement, and the repair and liability do not disappear — they follow the title straight to you. This is one reason a lawyer must review the status certificate.
Renovation restrictions: flooring, hard surfaces, structural work, and s.98 agreements
Planning to change the floors or move a wall? Read the alteration rules first. Many condos set sound-attenuation requirements for hard-surface flooring in the Declaration or Rules — replacing carpet with hardwood often requires an underlay meeting a minimum sound rating (the industry commonly cites FIIC 72). Heavier still is anything touching the common elements: according to the Condominium Authority of Ontario (2025) and section 98 of the Condominium Act, before an owner alters a common element the board must approve it by resolution and the owner must enter a written section 98 alteration agreement with the corporation. That agreement is registered on title and spells out who is responsible for the maintenance, repair, and insurance of the alteration going forward — usually the owner. If you buy a unit with an unauthorized alteration, that responsibility comes with it.
Four steps before closing: get the status certificate, read the Declaration, check the By-laws and Rules, confirm with your lawyer
ℹ️This article is general education, not legal advice. Before you sign, have your real estate lawyer review the status certificate and the full governing documents.
💡 Once you close, you are bound by all three tiers whether or not you ever read them. And the threshold to change them is steep to the point of near-impossible. For pets, amending a clause in the Declaration requires, according to the Condominium Authority of Ontario (2025), the written agreement of 80% of all owners. You will not overturn it on your own. That is why reading before you buy is not a formality — it is your only real negotiating window: if a restriction does not fit, you either walk away or exit during the status certificate condition period.
Frequently Asked Questions
Which governing document has the highest authority in an Ontario condo?
The order of authority is Declaration > By-laws > Rules, with the Condominium Act, 1998 above all three. A lower document cannot contradict a higher one. According to the Condominium Authority of Ontario (2025), the hardest restrictions — like pet and leasing rules — usually live in the Declaration, because a Declaration is held to no reasonableness standard.
Can an Ontario condo ban dogs or all pets, and is that enforceable?
Yes. According to the Condominium Authority of Ontario (2025), a complete pet prohibition in the Declaration is valid and enforceable, and section 17(3) of the Condominium Act requires the corporation to enforce it. Tenants must comply too, even though an Ontario landlord cannot put a no-pets clause in a lease. The exception is service animals protected under the Human Rights Code.
Can I run an Airbnb in my condo after I buy it?
You must clear two separate gates: municipal short-term-rental registration and condo permission. According to the Condominium Authority of Ontario (2025), a corporation may set a minimum lease term or ban short-term rentals in its governing documents, and that layer can override municipal permission. Always check the minimum lease term in the status certificate before you buy.
What does a status certificate contain, and how long does it take?
Under section 76 of the Condominium Act, it must include the Declaration, By-laws, Rules, budget, reserve fund, insurance, recent AGM minutes, and any litigation. The corporation must deliver it within 10 days of payment, the fee is capped at $100 including taxes, and it binds the corporation. It is the core document for checking every restriction before you buy.
After I buy, can I change a pet or renovation rule I do not like?
It is very hard. To amend a pet clause in the Declaration, according to the Condominium Authority of Ontario (2025), you need the written agreement of 80% of all owners. That is why reading and negotiating before closing is the only realistic window — after you move in, you effectively cannot change it.
Arthur Zhao
Real Estate Broker · FRI · ABR · SRS · PSA · MCNE · E-PRO · CLHMS & GUILD Elite · REAIS
VP & Branch Manager, Bay Street Group Inc.
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