Free NNN Lease Calculator
Calculate the total occupancy cost for a triple net (NNN) commercial lease by adding base rent to estimated pass-through charges for taxes, insurance, and common area maintenance.
sq ft
USD
USD
USD
USD
%
Monthly Total Occupancy Cost
$8,625.00
Annual Total (Year 1)$103,500
All-In Cost Per Sq Ft$34.50
Annual NNN Charges$37,500
Monthly Base Rent$5,500.00
Total Base Rent Over Lease$350,403
Monthly Total Occupancy Cost vs Lease Term (years)
Understanding NNN (Triple Net) Leases
In a triple net lease, the tenant pays base rent plus their proportionate share of property taxes, insurance, and common area maintenance (CAM). This is the most common lease structure in commercial real estate.
Components
NNN vs. Gross Lease
Escalation Clauses
Most NNN leases include annual base rent escalations of 2-4% to keep pace with inflation. NNN charges adjust based on actual costs each year.
Example Calculation
3,000 sq ft office at $22/sq ft base rent, $6.50 CAM, $4.25 tax, $1.75 insurance, 5-year term with 3% annual escalation.
- 01Annual base rent: 3,000 x $22 = $66,000
- 02Annual CAM: 3,000 x $6.50 = $19,500
- 03Annual tax: 3,000 x $4.25 = $12,750
- 04Annual insurance: 3,000 x $1.75 = $5,250
- 05Total NNN charges: $19,500 + $12,750 + $5,250 = $37,500
- 06Year 1 total: $66,000 + $37,500 = $103,500
- 07Monthly total: $103,500 / 12 = $8,625
- 08All-in per sq ft: $22 + $6.50 + $4.25 + $1.75 = $34.50