Commercial Lease Calculators
Formulas, worked examples, and reference tables for common commercial lease calculations — NNN costs, CAM reconciliation, rent escalation, pro-rata share, effective rent, and lease abstraction ROI.
NNN Lease Cost Calculator
A NNN (triple net) lease requires the tenant to pay base rent plus three operating expense categories: property taxes, building insurance, a...
Total Annual Cost = Base Rent + Property Taxes + Insurance + CAM/Maintenance
CAM Reconciliation Calculator
At the end of each lease year, landlords reconcile estimated CAM payments against actual expenses. If actual expenses exceed estimates, tena...
CAM True-Up = (Actual CAM Expenses × Tenant Pro-Rata Share) − Monthly CAM Paid
Rent Escalation Calculator
Commercial leases typically include annual rent escalations. The two most common methods are fixed percentage increases (e.g., 3% per year) ...
Fixed %: Year N Rent = Base Rent × (1 + Rate)^(N−1)
Lease Abstraction ROI Calculator
AI lease abstraction costs $20 per lease and takes under 3 minutes. Manual abstraction costs $150–$300 per lease and takes 3–5 hours. This c...
Savings = (Manual Cost per Lease − AI Cost per Lease) × Number of Leases
Pro-Rata Share Calculator
Pro-rata share determines what percentage of shared building expenses a tenant is responsible for. It is calculated by dividing the tenant's...
Pro-Rata Share = Tenant Leased Area ÷ Total Rentable Building Area
Effective Rent Calculator
Effective rent adjusts the face rent (stated monthly rent) to account for landlord concessions — free rent periods and tenant improvement (T...
Effective Annual Rent = (Total Rent over Term − TI Allowance − Free Rent Value) ÷ Lease Term in Years
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