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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Vaughan Legal Guides » Real Estate, Housing & Civil Disputes Vaughan » Commercial Real Estate & Zoning Vaughan » How to Sublease Commercial Space Legally in Vaughan

How to Sublease Commercial Space Legally in Vaughan

5 Jun 2026 5 min read No comments Commercial Real Estate & Zoning Vaughan
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To legally sublease or assign your commercial space in Vaughan, you must obtain written consent from your landlord. Under Ontario’s Commercial Tenancies Act, landlords generally cannot “unreasonably withhold” this consent. Hiring a commercial real estate lawyer to draft the agreement typically costs between $1,500 and $3,000 CAD.

Running a business in Vaughan is exciting, but sometimes your company’s spatial needs change faster than your lease expires. Perhaps your logistics company in Concord has outgrown its current warehouse, or your retail shop near Vaughan Mills needs to downsize. When you are locked into a multi-year commercial lease, breaking the contract can result in massive financial penalties. Instead, subleasing or assigning your space to another business owner is often the smartest strategy to avoid breaking your lease.

However, you cannot simply hand your keys to another business owner and walk away. 🚫 Commercial leases are highly complex, legally binding documents governed by the Ontario Commercial Tenancies Act. Handing over your space without following the exact rules written in your lease is a “breach of contract,” which can lead to immediate eviction for the new tenant and a lawsuit against you. Partnering with a local commercial real estate lawyer is the best way to ensure the transition is smooth, legal, and protects your financial interests.

Step-by-Step Process in Vaughan, Ontario

Subleasing or assigning a commercial space requires careful negotiation and paperwork. Here is the step-by-step process most business owners in Vaughan must follow to legally transfer their space.

Step 1: Review Your Lease for the “Assignment and Subletting” Clause

Before doing anything, you must read your current commercial lease. 🔍 Almost all standard leases in Ontario contain an “Assignment and Subletting” clause. This section outlines exactly what you must do to get the landlord’s permission. It will also define whether the landlord has the right to simply terminate your lease instead of allowing you to sublet (known as a termination right).

Step 2: Find a Qualified Subtenant

Landlords will not approve just anyone to take over the space. You must find a new tenant who is financially stable and whose business fits the zoning of the property. You should gather their business plan, financial statements, and credit reports. The landlord will want proof that this new subtenant can easily afford the monthly rent and will not damage the Vaughan property.

Step 3: Request Official Consent from the Landlord

Once you have a strong candidate, your lawyer will send a formal written request for consent to the landlord or the property management company. 📧 The Commercial Tenancies Act states that a landlord cannot “unreasonably” withhold their consent unless the lease explicitly gives them absolute discretion. They must have a valid business reason to say no, such as the new tenant having terrible credit.

Step 4: Draft and Sign the Sublease or Assignment Agreement

If the landlord approves, your legal team will draft the final paperwork. It is important to know the difference: an “Assignment” means the new tenant completely takes over the lease and deals directly with the landlord. A “Sublease” means you remain the middleman; the subtenant pays you, and you continue paying the landlord. All three parties (you, the new tenant, and the landlord) must sign this final agreement.

How Much Does it Cost in Vaughan?

Transferring a commercial lease involves administrative and legal costs. 💰 While it is cheaper than breaking a lease, you should budget for the following expenses:

  • Lawyer Fees: Having a commercial lawyer review your current lease and draft the Sublease or Assignment Agreement usually costs between $1,500 and $3,500 CAD.
  • Landlord Consent Fees: Most commercial leases state that the original tenant must pay the landlord’s legal and administrative fees for reviewing the new tenant. This is legally permitted in Ontario and typically ranges from $1,000 to $2,500 CAD.
  • Broker Fees: If you hire a commercial real estate agent to find the new subtenant, expect to pay a commission, often calculated as a percentage of the remaining lease value or a few months’ rent.

Here is a quick comparison between your two main options:

FeatureSubleaseAssignment
RelationshipOriginal tenant acts as a middleman (sub-landlord).New tenant deals directly with the actual landlord.
Who Collects Rent?Original tenant collects from subtenant, pays landlord.New tenant pays the landlord directly.
LiabilityOriginal tenant is 100% responsible if subtenant defaults.Original tenant is often still a guarantor, but liability is reduced.

How Long Does the Process Take?

The timeline heavily depends on your landlord’s responsiveness. ⌚ Generally, finding a qualified tenant can take several months. Once you submit the formal request for consent, landlords in Ontario typically have 15 to 30 days to review the subtenant’s financials and provide a decision. The entire legal process of drafting and signing the paperwork usually takes 3 to 6 weeks.

Frequently Asked Questions (FAQ)

What happens if my subtenant stops paying rent?

In a sublease, you are still legally bound by the “head lease.” If your subtenant stops paying, you must still pay the full rent to the landlord out of your own pocket. You would then have to take legal action against your subtenant to recover the lost money.

Can the landlord refuse my subtenant just because they want to?

Usually, no. Under the Commercial Tenancies Act, a landlord’s refusal must be reasonable. Reasonable grounds for refusal include the subtenant having poor credit, running a business that competes with another tenant in the same plaza, or lacking business experience.

Can I charge the subtenant more rent than I currently pay?

Many commercial leases contain a “Profit Clause.” This means if you sublease the space for a higher monthly rent than what you pay the landlord, the landlord has the right to seize 50% to 100% of that extra profit. You must have your lawyer check your lease for this clause.

Do I still need a lawyer if the new tenant is a friend?

Absolutely. Commercial real estate disputes can ruin businesses and friendships. A formal agreement protects you if your friend’s business fails or if they cause severe property damage that the landlord tries to bill you for.

Can I sublet only half of my warehouse space?

Yes, partial subleases are common, especially in large industrial spaces in Vaughan. However, you still need the landlord’s explicit written consent, and you may need to address logistics like shared hydro meters, parking spaces, and insurance liabilities.

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