Types of Commercial Leases: Every Lease Structure Explained (2026)

Signing a commercial lease is one of the biggest financial commitments a business makes. But unlike residential leases where the structure is almost always the same, commercial leases come in several completely different forms — and each one shifts expenses between tenant and landlord in a different way.

Choose the wrong lease type without understanding it, and you could pay tens of thousands more than you expected over a 5-year term.

In this guide you will learn every major type of commercial lease, exactly who pays what under each structure, how they compare side by side, and which lease type is most common for retail, office, and industrial properties.

The Core Concept: Who Pays the Operating Expenses?

Every commercial lease structure answers one fundamental question: who pays the operating expenses?

Operating expenses include:

• Property taxes
• Building insurance
• Maintenance and repairs
• CAM charges (common area maintenance)
• Utilities

In some leases the landlord covers all of these and rolls them into a higher base rent. In others the tenant pays them directly on top of a lower base rent. Most lease types fall somewhere in between.

Understanding this spectrum is the key to understanding every commercial lease type.

The Commercial Lease Spectrum

Moving left to right, more expense responsibility shifts from landlord to tenant. Base rent gets lower. Tenant's total occupancy cost becomes harder to predict.

1. Full Service Gross Lease (Gross Lease)

A full service gross lease — also called a gross lease — is the simplest commercial lease structure. The tenant pays one fixed monthly amount. The landlord pays all operating expenses out of that rent.

Tenant pays: Base rent only
Landlord pays: Property taxes, insurance, maintenance, utilities, CAM

How it works:
The landlord estimates annual operating costs, adds a profit margin, and bakes everything into a single rent figure. The tenant writes one check. No surprise bills, no expense reconciliations.

Typical base rent: Higher than NNN — the landlord's expense costs are built in.

Most common in: Office buildings, some retail, older commercial properties

Best for tenants who want: Predictability and simplicity. You know your exact monthly cost for the entire lease term.

Risk for tenants: If operating expenses drop significantly, you still pay the same rent. The landlord keeps the savings.

Risk for landlords: If taxes, insurance, or maintenance spike, the landlord absorbs those costs until the lease renews.

Example:
A 2,000 SF office space at $30/SF gross = $5,000/month flat. That is it. No additional bills regardless of what the landlord pays in taxes or utilities.

2. Modified Gross Lease

A modified gross lease splits operating expenses between tenant and landlord — the exact split is negotiated deal by deal. There is no single standard structure.

Tenant pays: Base rent + some operating expenses (negotiated)
Landlord pays: Remaining operating expenses

The most common variation — Base Year Stop:
The landlord pays all expenses up to the amount incurred in the first lease year (the "base year"). If expenses increase beyond that baseline in subsequent years, the tenant pays the difference. The landlord is protected from the starting cost, the tenant absorbs increases.

Another common variation — Expense Stop:
The lease specifies a dollar amount per square foot beyond which the tenant pays the excess. Below the stop, the landlord pays. Above the stop, the tenant pays.

Most common in: Office buildings, mixed-use properties, mid-size retail

Best for: Tenants who want partially predictable costs with some shared risk. Landlords who want some expense protection without full NNN management complexity.

Key negotiation point: The base year amount. If negotiated in a high-expense year, the landlord is better protected. Tenants should push for a base year that reflects normalized expenses.

3. Single Net Lease (N Lease)

In a single net lease, the tenant pays base rent plus property taxes. The landlord remains responsible for insurance and maintenance.

Tenant pays: Base rent + property taxes
Landlord pays: Building insurance, maintenance, utilities

Most common in: Less common today — mostly seen in older lease agreements or specific deal structures

Practical note: Single net leases are rare in modern commercial real estate. Most leases jump from gross to double net or triple net.

4. Double Net Lease (NN Lease)

A double net lease adds insurance to the tenant's responsibilities. The tenant pays base rent, property taxes, and building insurance. Maintenance remains with the landlord.

Tenant pays: Base rent + property taxes + building insurance
Landlord pays: Maintenance and repairs, structural costs

Most common in: Some retail and office properties, older multi-tenant buildings

How it differs from NNN: The landlord still handles maintenance and repairs. This is a meaningful distinction — a leaking roof or broken HVAC is the landlord's problem and expense, not the tenant's.

Best for tenants: More predictable than NNN because maintenance surprises stay with the landlord.

5. Triple Net Lease (NNN Lease)

The triple net lease is the most common commercial lease structure for single-tenant retail, industrial, and net lease investment properties. The tenant pays base rent plus all three operating expense categories.

Tenant pays: Base rent + property taxes + building insurance + maintenance/CAM
Landlord pays: Structural repairs only (roof, foundation, exterior walls) — in standard NNN

How it works:
The landlord receives a lower base rent but has almost no ongoing expenses. The tenant manages the property day to day and pays operating costs directly as they occur.

NNN charges are usually estimated at the start of each year and reconciled against actual costs at year end. If actual expenses exceeded estimates, the tenant owes the difference. If they came in lower, the tenant receives a credit.

Most common in: National retailers, pharmacies, fast food, auto parts stores, dollar stores, single-tenant commercial buildings

Most common for investors: NNN properties are the most traded commercial real estate investment type because of predictable passive income.

Typical NNN charges: $6–$12/SF/year depending on property age, location, and property type.

For a complete breakdown of everything in a triple net lease, see our full guide: What Is a Triple Net Lease?

Use our commercial lease calculator to calculate your total NNN occupancy cost including annual escalations.

6. Absolute Net Lease (Absolute NNN)

An absolute net lease takes NNN one step further. The tenant is responsible for everything — including structural repairs like roof replacement, HVAC systems, and major capital expenditures. The landlord has zero ongoing obligations.

Tenant pays: Everything — base rent, taxes, insurance, maintenance, AND structural repairs
Landlord pays: Nothing

Most common in: Long-term leases (15–25 years) with large investment grade national tenants — Walgreens, CVS, McDonald's, Starbucks, Dollar General

Why tenants accept it: In exchange for accepting all expense risk, tenants typically negotiate lower base rents and more favorable lease terms. National chains also want full control over property maintenance to protect their brand standards.

Why investors love it: Truly passive income. The investor collects rent for 20 years without a single maintenance call. These properties command the lowest cap rates (highest prices) in commercial real estate.

Key risk: When the lease expires, the landlord inherits a building that may need significant capital investment — the tenant maintained it their way, not necessarily to the landlord's standards.

7. Percentage Lease

A percentage lease combines a fixed base rent with a percentage of the tenant's gross sales above a certain threshold. Common in retail where the landlord wants to participate in the tenant's success.

Tenant pays: Base rent + percentage of gross sales above the "breakpoint"
Landlord pays: Varies — often structured as modified gross

The breakpoint:
The natural breakpoint is where the tenant's gross sales divided by the percentage rate equals the base rent. Below that level, the tenant pays only base rent. Above it, the percentage kicks in.

Example:

• Base rent: $60,000/year
• Percentage: 5% of gross sales over $1,200,000
• Natural breakpoint: $60,000 / 0.05 = $1,200,000

If the tenant's annual sales are $1,800,000:

Most common in: Malls, shopping centers, tourist retail, entertainment venues

Best for landlords in: High-traffic retail where tenant sales are predictable and auditable

Negotiation point: Tenants should negotiate a higher breakpoint so the percentage only kicks in at genuinely strong sales levels.

8. Ground Lease

A ground lease is fundamentally different from all other commercial lease types. The tenant leases the land only — not the building. The tenant constructs and owns the building during the lease term.

Tenant pays: Land rent (typically low base + periodic escalations)
Tenant owns: The building they construct on the land
Landlord owns: The land only

Lease terms: Very long — typically 50–99 years with options to renew

What happens at the end: The building reverts to the landowner unless the lease is renewed or the tenant purchases the land.

Most common in: Urban commercial properties where landowners will not sell, major hotel and office developments, fast food and retail on prime locations

Why it works for tenants: Tenants gain access to prime locations without paying the full land acquisition cost. Long lease terms provide stability.

Why it works for landowners: Retain ownership of appreciating land while earning steady income. The building improvement adds value to the land at lease end.

Key risk for tenants: Financing a building on leased land is complex. Lenders are cautious about ground lease financing. Lease terms must extend well beyond the loan maturity date.

Side-by-Side Comparison: All Lease Types

Which Lease Type Is Most Common by Property Type?

Retail Properties

• Single-tenant national brands: Triple net or absolute NNN
• Strip malls and shopping centers: Triple net or modified gross
• Mall inline stores: Percentage lease
• Smaller local retail: Modified gross or gross

Office Buildings

• Class A urban office: Full service gross or modified gross
• Suburban office parks: Modified gross or gross
• Medical office: Modified gross or NNN depending on building type

Industrial and Warehouse

• Distribution centers: Triple net
• Flex space: Modified gross or NNN
• Manufacturing facilities: NNN or absolute NNN for large single tenants

Multifamily / Apartment

Not applicable — residential leases follow a different structure entirely and are governed by landlord-tenant law rather than commercial lease principles.

How to Calculate Your True Occupancy Cost

The advertised rent on a commercial listing is almost never your total cost.

For gross leases: what you see is what you pay.

For net leases: add the NNN charges on top of the base rent to find your real monthly cost.

Full occupancy cost formula:

Always compare properties using the true annual cost per SF — not the advertised base rent. A $20 gross lease and a $14 NNN lease can have the same effective cost once you add NNN charges.

Use our commercial lease calculator to model and compare any lease structure side by side.

Key Lease Terms to Know Before Signing

Rent Escalation
Most commercial leases include annual rent increases — typically 2–3% per year or CPI-linked. Always model the full lease term cost, not just Year 1.

CAM Reconciliation
In NNN and modified gross leases, CAM charges are estimated at the start of each year and reconciled against actual costs. You may owe additional amounts or receive a credit at year end.

Expense Cap
Some tenants negotiate a cap on annual CAM increases — for example, controllable expenses cannot increase more than 5% per year. This protects against runaway operating cost escalations.

Tenant Improvement Allowance (TI)
The landlord may offer a TI allowance — a contribution toward fitting out the space for your use. This is a key negotiating point regardless of lease type. See our guide on tenant improvement allowance.

Personal Guarantee
Many commercial landlords require a personal guarantee for smaller tenants — meaning the business owner is personally liable if the business cannot pay rent. Negotiate scope and duration carefully.

Frequently Asked Questions

What are the main types of commercial leases? The main types are full service gross (landlord pays all expenses), modified gross (expenses split by negotiation), single net (tenant pays taxes), double net (tenant pays taxes and insurance), triple net or NNN (tenant pays taxes, insurance, and maintenance), and absolute net (tenant pays everything including structural). Percentage leases and ground leases are also common in specific contexts.

What is the difference between a gross lease and a net lease? In a gross lease, the landlord pays all operating expenses and the tenant pays one fixed rent. In a net lease, the tenant pays base rent plus some or all operating expenses directly. Net leases have lower base rent but higher total occupancy cost because expenses are added on top.

What is a modified gross lease? A modified gross lease is a hybrid where some expenses are the landlord's responsibility and some are the tenant's. The exact split is negotiated. A common structure is a base year stop — the landlord pays expenses up to the first year's level and the tenant pays any increases above that baseline.

What is the most common commercial lease type? Triple net (NNN) leases are the most common for single-tenant retail, industrial, and investment properties. Modified gross leases are most common for office buildings. The right lease type depends on property type, market norms, and negotiating position.

What is a full service lease? A full service lease is another name for a gross lease — the landlord provides full service by paying all operating expenses. The tenant pays one all-inclusive base rent. These are most common in Class A office buildings.

What does the tenant pay in a triple net lease? In a triple net lease the tenant pays base rent plus property taxes, building insurance, and maintenance/CAM charges. On a standard NNN lease the landlord remains responsible for structural repairs — roof, foundation, and exterior walls.

How do I compare different lease types? Always calculate the total annual occupancy cost per square foot. Add the base rent and all tenant-paid expenses, divide by square footage, and compare that number across different properties. A lower base rent with high NNN charges can cost more than a higher gross lease rent.

Model Your Lease Cost Now

Use our free commercial lease calculator to see your exact monthly cost, effective rent per square foot, and total occupancy cost over the full lease term — including annual escalations.

→ Use the Free Commercial Lease Calculator

Last updated: May 2026. Lease structures and norms reflect current US commercial real estate market.
This content is for informational purposes only. Consult a commercial real estate attorney before signing any lease agreement.