Example: Rentable square feet: 20,000 sq ft · Rent per sq ft (annual): $28 · Occupancy: 88% · Operating expenses per sq ft: $9 → Cap rate: 7.45%.
Annual NOI: $312,800
Effective gross rent: $492,800
Frequently asked questions
How do I calculate office building roi? Enter your numbers above and the result updates instantly. For example: Rentable square feet: 20,000 sq ft · Rent per sq ft (annual): $28 · Occupancy: 88% · Operating expenses per sq ft: $9 → Cap rate: 7.45%.
Is this Office Building ROI Calculator free? Yes — completely free with no sign-up or paywall. It runs entirely in your browser and keeps working offline; the numbers you enter never leave your device.
How accurate is it? It uses the standard published formula for office building roi. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.