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Office space calculator

How much office space do you need?

Estimate a first-pass rentable-area target from peak attendance, growth and a stated area allowance.

Set the working assumptions

Do not treat the result as a measured suite requirement. Meeting rooms, circulation, building efficiency, code, accessibility and work patterns can materially change the answer.

Updated 2026-09-12
Fast answerThe tool increases peak people by the selected growth percentage, rounds planned people up and multiplies by the stated rentable square feet per person.

Improve the estimate

Build a room list, test compact and spacious scenarios and place the program on real floorplates. Keep usable planning area separate from rentable billed area.

Space-per-employee guideRequirement checklistStart a search

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.