Lease Addendums and Side Agreements in Saskatchewan

Leases & Agreements Saskatchewan 4 min read · published June 24, 2026 Flag of Saskatchewan

Lease addendums and side agreements are extra written terms landlords or tenants may use to change or clarify parts of a rental arrangement. In Saskatchewan these documents can help with things like allowing a pet, changing parking, or agreeing on minor repairs, but they must not conflict with the main lease or provincial rental law. Tenants should understand when an addendum is legally binding, how to record agreed changes, and what to do if a verbal promise is broken. This guide explains practical steps to protect your renter rights, how to ask for written confirmation, when to seek help from the Saskatchewan tribunal[1], and how to keep clear records that can support you in disputes.

What are lease addendums and side agreements?

An addendum is a short written document attached to the main lease that modifies or clarifies specific terms. Side agreements are similar written notes or signed letters that sit alongside the lease. Both are commonly used to allow a pet, record a temporary rent arrangement, or note who pays for a repair. They should be dated, signed by all parties, and clearly worded so their intent is unambiguous.

A signed, dated addendum attached to a lease is often easier to enforce than a verbal promise.

When are addendums legally binding in Saskatchewan?

An addendum is generally binding when it is written, dated, and signed by the landlord and tenant and does not conflict with provincial law or the core terms of the original lease. Under Saskatchewan tenancy rules and the Residential Tenancies Act, a clause that contravenes the legislation is likely unenforceable, even if both parties signed it[2]. If an addendum attempts to waive rights the law protects, that portion can be invalid while the rest may survive.

Do not sign an addendum that asks you to give up rights required by provincial law.

How to create and document a clear addendum

Follow these steps when proposing or accepting changes so a future dispute is easier to resolve.

  • Put the change in writing on a signed form or short agreement and attach it to the lease.
  • State any change to rent, deposit, or fees clearly, including exact amounts and when they apply.
  • Include start and end dates or deadlines for temporary arrangements.
  • Describe who is responsible for repairs, maintenance, or improvements and timelines for fixes.
  • Have both landlord and tenant sign, date, and keep a copy as a record.
  • Keep photos or receipts as evidence for any condition or repair commitments.
Clear dates, signatures, and supporting photos greatly strengthen your position if a dispute arises.

Verbal promises vs written addendums

Verbal promises are common, but they are hard to enforce. If a landlord makes a verbal promise, ask them to put it in writing as an addendum and sign it. If they refuse, follow up by email so you have a written record of the request and any reply. If the verbal promise concerns repairs, safety, or a change to rent, insist on a signed addendum so the terms are clear.

Ask for any verbal agreement to be added to the lease in writing before relying on it.
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What to do if an addendum conflicts with your lease or provincial law

If an addendum contradicts the lease's core terms or Saskatchewan law, try to resolve it directly with the landlord by proposing a corrected addendum. Document your communication and keep copies. If you cannot reach agreement, you can file a formal application with the provincial tenancy office to resolve the dispute and ask for a binding decision. See the official forms and instructions for filing an application[3].

Respond to any written notice quickly and keep all related documents in one place to avoid missing deadlines.

Related tenant steps after signing changes

After you sign an addendum, complete a quick checklist to protect yourself:

  • Move-in or re-inspect the unit and take dated photos of condition details.
  • Keep copies of the signed addendum with your lease documents and receipts.
  • Contact the landlord in writing if the agreed change is not implemented as promised.
Keeping everything together reduces stress and makes disputes easier to prove.

FAQ

Can a landlord add an addendum after I sign a lease?
A landlord can propose an addendum, but it only becomes binding if you both sign it. Unilateral changes without agreement are generally not valid.
Is a verbal side agreement legally binding?
Verbal agreements can sometimes be binding, but they are difficult to prove. A written, signed addendum is much stronger evidence.
What should I do if an addendum conflicts with my lease or provincial rules?
Try to resolve the issue with the landlord in writing. If you cannot agree, file an application with the provincial tenancy office or tribunal to seek a decision.

How-To

  1. Request the change in writing, describing exactly what you want and why.
  2. Ask the landlord to draft or sign a short addendum that includes dates, amounts, and responsibilities.
  3. Both parties sign and date the addendum and attach it to the main lease.
  4. Keep copies, photos, and email records in a single folder for easy reference.
  5. If the landlord will not cooperate and the issue affects your rights, file an application with the Saskatchewan tenancy office for resolution.

Key Takeaways

  • Always get changes in writing and signed by both parties.
  • Keep dated copies and photos to support any future dispute.
  • Use the provincial tenancy office if you cannot resolve a conflict directly.

Help and Support / Resources


  1. [1] Saskatchewan Residential Tenancies information
  2. [2] Residential Tenancies Act, 2006 (Saskatchewan)
  3. [3] How to file a residential tenancy application and official forms

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Marie Dubois
Marie Dubois

Bilingual Housing Rights Advisor, Tenant Rights Canada

Marie covers tenant rights across Quebec and the Atlantic provinces in both English and French. With a background in Quebec civil law and residential tenancy, she is a trusted voice on the Tribunal administratif du logement process and francophone tenant rights.