Office Space Rent Estimator
Calculate commercial office rent per square foot/meter and estimate required space based on employee headcount. Factors in load factors and usable vs. rentable area.
Est. Occupancy Cost
Recommended Space
About
Leasing office space involves more than just multiplying area by price. A critical concept is the difference between Usable Square Footage (USF)—the space your team actually occupies—and Rentable Square Footage (RSF), which includes a share of common areas like lobbies, hallways, and bathrooms. The ratio between these is known as the "Load Factor" or "Add-on Factor."
This estimator serves two purposes: it calculates the total monthly and annual occupancy cost based on RSF, and it provides a reverse-calculation to estimate how much space a company needs based on its headcount and desired density (e.g., Open Plan vs. Private Offices). This helps startups and facility managers budget accurately without underestimating the spatial needs of their workforce.
Formulas
The relationship between Rentable and Usable space is defined by the Load Factor:
To estimate the Space Requirement based on headcount:
Total Monthly Cost is calculated on the Rentable area:
Reference Data
| Office Layout Style | Avg. Density (sq ft / person) | Description |
|---|---|---|
| High Density (Call Center) | 80 - 100 | Rows of small desks, minimal common space. |
| Open Plan (Tech/Creative) | 100 - 150 | Shared benches, breakout zones, some privacy booths. |
| Mixed Layout (Standard) | 150 - 200 | Mix of cubicles (60%) and private offices (40%). |
| Private Offices (Law/Finance) | 200 - 400 | Majority enclosed offices, large conference rooms. |
| Executive Suite | 400+ | Large private suites, extensive reception areas. |