COMMERCIALLY.caOfficeBuildings.ca
OfficeBuildings.ca / Office lease definition
Office lease definition

What is proportionate share?

A tenant allocation percentage used for specified building costs, often based on a relationship between premises and building areas.

Updated 2026-09-12
Fast answerA tenant allocation percentage used for specified building costs, often based on a relationship between premises and building areas.

Why it matters

A small percentage change can affect recurring additional rent.

What to request

Request the numerator, denominator, exclusions, adjustment rights and treatment of different uses.

Planning example

Reconcile the percentage to the cited areas and measurement basis. 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.

Proportionate share questions

Plain-language answers for Canadian office decisions.

What does proportionate share mean in an office lease?

A tenant allocation percentage used for specified building costs, often based on a relationship between premises and building areas.

Why does proportionate share matter?

A small percentage change can affect recurring additional rent.