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Office lease definition

What is base rent?

The stated rent for the premises before separately charged additional rent and other tenant costs. It is often quoted per rentable square foot per year.

Updated 2026-09-12
Fast answerThe stated rent for the premises before separately charged additional rent and other tenant costs. It is often quoted per rentable square foot per year.

Why it matters

A low base rate does not establish a low total occupancy cost.

What to request

Request the complete rate schedule, area basis, escalation dates, free-rent treatment and every separately payable amount.

Planning example

8,000 rentable SF at $24/SF/year equals $192,000 per year before additional rent and other costs. The example organizes arithmetic or evidence only; the transaction documents and facts determine the result.

Related decisions

Connect this term to the area, cost, building, flexibility and document provisions elsewhere in the office decision file.

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.

Base rent questions

Plain-language answers for Canadian office decisions.

What does base rent mean in an office lease?

The stated rent for the premises before separately charged additional rent and other tenant costs. It is often quoted per rentable square foot per year.

Why does base rent matter?

A low base rate does not establish a low total occupancy cost.