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Office subleases

Office space for sublease in Canada.

Use a shorter-term or furnished option only after the head lease, consent, condition and expiry path are understood.

Updated 2026-09-12
Fast answerAn office sublease gives a subtenant rights to use premises held by an existing tenant, subject to the head lease and required landlord consent. Its potential speed and flexibility come with an additional document and counterparty layer.

Start with the head lease and consent

Review the remaining term, use, transfer, default, services, insurance, restoration and incorporated obligations. Identify every landlord approval, notice, document and condition.

Inspect premises and assets

Record area, measurement, furniture, cabling, equipment, access cards, condition, deficiencies, shared rooms, signage and services. Clarify what remains at expiry.

Compare complete sublease cost

Model subrent, additional rent, utilities, parking, furniture, services, tax, deposits, improvement work and professional fees. Confirm who pays each invoice and receives each reconciliation.

Plan for interruption and expiry

Assess head-lease default, consent delay, early termination, renewal mismatch, restoration and the move required when the sublease ends.

Evidence boundary: office availability and quoted economics change. Confirm current premises, authority, area, costs, permitted use and documents for the specific transaction. Read the methodology.

Common questions

Scope and evidence boundaries.

What is the purpose of this office subleases page?

An office sublease gives a subtenant rights to use premises held by an existing tenant, subject to the head lease and required landlord consent. Its potential speed and flexibility come with an additional document and counterparty layer.

Does OfficeBuildings.ca guarantee current availability?

No. Current availability, authority, area, costs and permitted use must be confirmed for the specific property and transaction.