Commercial Lease Calculator

Your details

The rentable square footage (or square metres) of the space you are leasing.
ft²
Annual base rent per square foot (or per square metre). Most U.S. commercial listings quote this on a per-square-foot-per-year basis.
$ / ft² / yr
Determines which operating expenses (property taxes, insurance, maintenance/CAM) the tenant is responsible for paying on top of base rent.
Tenant-paid annual property tax per square foot. Applies to Single Net, Double Net, and Triple Net leases.
$ / ft² / yr
Tenant-paid annual insurance premium per square foot. Applies to Double Net and Triple Net leases.
$ / ft² / yr
Common Area Maintenance charges per square foot per year. Applies to Triple Net leases only.
$ / ft² / yr
Total length of the lease in years (typically 3 to 10 years for commercial space).
years
Annual percentage increase applied to the base rent at each lease anniversary. Common rates are 2-3% or CPI-linked escalations.
%
Number of months at the start of the lease where no rent (base rent only) is owed. A common landlord concession to help tenants with fit-out costs.
months
Lump-sum allowance provided by the landlord toward tenant fit-out costs. Reduces your effective occupancy cost.
$
Broker commission as a percentage of total base rent over the lease term. Typically 4-6% and is usually paid by the landlord, but affects total deal economics.
% of total rent
Currency
Total monthly cost
$6,979

All-in monthly occupancy cost in year 1

Monthly base rent$5,208
Monthly NNN expenses$1,771
Annual cost (year 1)$83,750
Total lease cost$438,071
Net effective lease cost$438,071
Broker commission$16,591
Effective monthly rate$7,301

Triple Net (NNN) lease: $6979/month all-in, $438071 total over 5 years.

  • NNN operating expenses add 25% on top of base rent, bringing your all-in monthly cost to $6979.
  • With 3% annual escalations, your base rent in year 5 will be approximately $5862/month.
  • Total broker commission over the lease term is $16591 (typically paid by the landlord but factors into deal economics).

Next stepAsk the landlord for a current NNN expense reconciliation statement to verify the per-square-foot figures used here before signing.

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