Business & StartupFacility Planning
Office Operating Cost Calculator
Calculate commercial workspace expenses on an annual square-foot and monthly per-employee basis, factoring in lease rates, janitorial, telecom, and desk IT seats.
Workplace Cost Allocation Formula
Total Office Cost = Base Rent + Utilities/Janitorial + Telecom + Pantry + (Seat Licenses × Employee Count)- Base Lease: Full Service Gross (FSG) or Triple Net (NNN) square footage tariff annualized.
- Employee Desk Cost: Total commercial facility budget divided across in-office team headcount.
Step-by-Step Worked Example
Scenario: A 2,000 sq ft office leased at $30/sq ft/yr housing 10 employees with $150/mo per-desk tech seats
Calculation Steps:
- Monthly Base Rent = (2,000 × $30) / 12 = $5,000 / month
- Total Shared & Desk Tech = $1,500 + $1,500 = $3,000 / month
- Total Monthly Office Cost = $5,000 + $3,000 = $8,000 / month
- Annual Office Operating Cost = $8,000 × 12 = $96,000 / year
- Cost Per Square Foot = $96,000 / 2,000 sq ft = $48.00 / sq ft / year
- Cost Per Employee = $8,000 / 10 employees = $800.00 / employee / month ($9,600 / year)
Result: Total workspace cost is $8,000/month ($48.00/sq ft/year), averaging $800/month per employee desk.
How to Use This Calculator
- 1Enter total rentable office square footage and lease rate per sq ft.
- 2Include shared monthly utilities, cleaning, and internet service expenses.
- 3Input the in-office headcount and individual workstation tech licensing costs.
Assumptions & Limitations
- Lease rate is converted from annual sq ft into standard monthly payments.
- All employees are assumed to have equal access to facility resources.
Frequently Asked Questions
What is the average office space required per employee?
Modern open and hybrid office layouts typically plan for 125 to 175 square feet per employee, whereas traditional executive offices require 200 to 250 square feet per employee.
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