There is no single square-metre-per-person rule that tells you the right office size. The need depends on simultaneous attendance, ways of working, meeting frequency, focus work and the shared services available outside your own office.
Headcount is only the starting point
If 30 people work for the company but only 15–20 are typically in the office at the same time, designing around 30 permanent desks may not be the best use of space.
Plan by activity
List the functions the office needs to support: individual work, video calls, team meetings, client visits, informal collaboration, storage and breaks.
Use examples carefully
Spektri’s Design Guide includes a 150 m² example for around 14–20 people and a 426 m² example for around 30–40 people. They illustrate how layout and work patterns affect capacity.
Shared spaces can change the calculation
Spektri tenants can use bookable meeting rooms and an 88-person auditorium. If larger meetings happen only occasionally, it can be more efficient to use shared capacity instead of keeping a large meeting room inside your own office all year.
Frequently asked questions about office size
Can a 150 m² office work for 20 people?
It can in some layouts. Suitability depends on the actual work pattern.
Can shared spaces reduce the amount of office space we need?
Yes. Shared meeting and event spaces can replace functions that would otherwise occupy your own leased area.
