NNN vs. Gross Lease: A Tenant's Guide to Commercial Lease Structures
NNN and gross leases shift expense risk differently. Learn how each structure affects your total occupancy cost and what to watch for in the abstract.
Gross leases: tenant pays one fixed rent, landlord covers all expenses. Learn differences from full service gross, NNN, and key lease terms.
By Angel Campa, Founder · Updated March 2026
A Gross Lease requires the tenant to pay a single fixed rent amount, and the landlord pays all operating expenses from that gross rent. The tenant has maximum cost certainty and no exposure to expense volatility. Gross leases are common in older office buildings, some industrial properties, and smaller commercial spaces where landlords prefer simplicity over expense optimization.
Typical Industries
Typical Term Length
1–5 years
Pros
Cons
Pros
Cons
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In a gross lease, the tenant pays only the fixed base rent. The landlord pays all operating expenses including property taxes, building insurance, maintenance, utilities, janitorial, and HVAC. The tenant has no additional financial obligations beyond the stated rent amount.
For tenants who want simplicity and cost certainty, gross leases are preferable. However, the base rent in a gross lease will be higher than in a NNN lease to compensate the landlord for absorbing operating expenses. Whether a gross lease is "better" depends on the actual operating cost levels and the tenant's ability to manage and control expenses in a NNN structure.
A gross lease typically has no expense pass-through mechanism — the landlord bears all operating costs for the entire lease term. A full service gross (FSG) lease includes an expense stop provision that allows the landlord to pass through operating expense increases above a base year threshold. FSG is more common in institutional office buildings; gross leases appear more in older or smaller properties.
NNN and gross leases shift expense risk differently. Learn how each structure affects your total occupancy cost and what to watch for in the abstract.
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