A low rental rate can look attractive until CAM, taxes, insurance, and maintenance start landing on top of it. That is usually where confusion begins. When people ask about types of leases commercial properties use, they are usually trying to answer a more practical question: who is paying for what, and how much risk is being transferred from landlord to tenant?

That question matters whether you own an industrial building, lease warehouse space, or evaluate an investment property. The lease structure affects operating costs, deal value, cash flow predictability, and even how easy a space is to sublease or renew later. A lease is not just a rent number. It is a financial framework.

Why the types of leases commercial deals use matter

In residential real estate, lease terms are relatively familiar. In commercial real estate, the structure can vary significantly from one property and one market to the next. Two spaces with the same square footage and the same quoted rent may have very different actual occupancy costs.

For landlords, the wrong lease structure can leave too much expense volatility on ownership. For tenants, it can create budget surprises that affect operations and margins. For investors, lease type directly shapes net operating income and how stable that income really is.

This is especially relevant in industrial markets, where users often focus first on clear height, shipping, power, and location. Those factors matter, but the lease economics still need the same level of scrutiny.

Gross lease

A gross lease is the simplest starting point. The tenant pays a fixed rent, and the landlord covers most or all of the property operating expenses. That can include property taxes, building insurance, and common area maintenance.

From the tenant side, a gross lease is easier to budget. The monthly occupancy cost is more predictable, which can help smaller businesses or first-time commercial tenants. From the landlord side, the trade-off is obvious. If operating expenses rise faster than expected, the landlord absorbs the difference unless the lease has expense stops or escalation clauses.

Gross leases are more common in some office settings than in industrial properties, but the concept still shows up in smaller commercial deals. The key issue is not just whether the lease is called gross. It is what expenses are actually included and what exclusions remain.

Modified gross lease

A modified gross lease sits in the middle. The base rent is fixed, but some expenses are paid by the tenant, either directly or as additional rent. In practice, this is one of the most common structures because it allows the parties to split costs in a more tailored way.

For example, a landlord may cover taxes and insurance while the tenant pays utilities and janitorial services. In another deal, the tenant may pay its proportionate share of common area expenses above a base year. That is why the label alone is not enough. Modified gross can mean different things depending on the lease wording.

This structure often works well when both sides want a balanced approach. Landlords can reduce exposure to rising costs without shifting every expense to the tenant. Tenants get more clarity than under a fully net structure, but less shelter than under a true gross lease.

Single net lease

In a single net lease, the tenant pays base rent plus one of the major ownership expenses, usually property taxes. The landlord typically remains responsible for insurance and maintenance.

This lease type is less common than modified gross or triple net in many commercial markets, but it still appears in certain deals. Its main benefit is partial cost transfer. The landlord reduces one major expense burden, while the tenant takes on only a limited amount of additional risk.

The challenge is that it can be less intuitive than either a gross lease or a full net lease. Tenants need to understand how taxes are calculated, whether reassessment is possible, and whether there is any cap or adjustment mechanism.

Double net lease

A double net lease pushes the cost transfer further. The tenant pays base rent plus property taxes and insurance, while the landlord usually remains responsible for structural maintenance and some common area obligations.

For landlords, this improves income protection compared with a gross lease. For tenants, it creates more transparency around real occupancy cost, but also more responsibility. If taxes increase or insurance premiums rise, the tenant feels that change directly.

Double net structures can make sense when the landlord wants stronger expense recovery but still retains control over the physical asset. In multi-tenant properties, that balance can be useful, though administration still needs to be tight. Expense definitions, audit rights, and allocation methods matter.

Triple net lease

The triple net lease, often called NNN, is one of the most recognized commercial lease structures. Under a triple net lease, the tenant pays base rent plus property taxes, insurance, and maintenance or common area expenses.

This is common in retail, industrial, and single-tenant commercial properties because it shifts a large share of property cost exposure to the tenant. For landlords and investors, that can make cash flow more stable and easier to underwrite. For tenants, the quoted base rent often appears lower than a gross lease, but the total monthly cost can be materially higher once the additional charges are added.

In industrial leasing, triple net terms are frequently attractive because users often prefer a lower headline rent and are accustomed to managing operating costs. But this is where careful review matters most. "Maintenance" can cover very different items from one lease to another. Roof, structure, paving, snow removal, HVAC, and capital replacements are not minor details. They can materially affect total occupancy cost over the lease term.

Full service lease

A full service lease is closely related to a gross lease, but the term is usually used where the landlord provides a broader package of services within the rent. That may include cleaning, utilities, maintenance, and management-related costs.

For tenants, full service leases offer convenience and predictable monthly expenses. For landlords, they require stronger operating control and careful pricing because service costs can change over time.

This structure is more common in office environments than in industrial product, but the broader lesson still applies. If a lease is marketed as full service, verify what is actually included. After-hours HVAC, excess utility use, dedicated shipping areas, and special maintenance requirements may still be billed separately.

Percentage lease

A percentage lease is most often used in retail. The tenant pays a base rent plus a percentage of gross sales above a defined threshold. This aligns the landlord with tenant performance to some extent.

For landlords, a percentage lease creates upside if the tenant performs well. For tenants, it can reduce fixed occupancy cost early on, but it also means sharing revenue once sales increase. The details matter a great deal, especially how gross sales are defined and what deductions are permitted.

This structure is generally less relevant for industrial users, but investors and mixed-use landlords should still understand it. Not every commercial lease follows the same logic, and lease analysis should reflect the actual property use.

Which commercial lease type is best?

There is no universal best answer. The right lease depends on the property, the tenant profile, bargaining power, and the condition of the asset.

A landlord with a newer single-tenant building may prefer a triple net structure because the expense pass-through is cleaner and the maintenance burden is lower in the near term. A tenant with tight operating margins may prefer modified gross terms to reduce exposure to volatile costs. An investor evaluating two buildings with similar rents may favor the one with stronger net lease protections because the income is more durable.

The local market also matters. In tighter submarkets, landlords may have more leverage to pass through expenses. In softer conditions, tenants may be able to negotiate caps, exclusions, free rent, or landlord responsibility for structural items.

In the Toronto and GTA industrial market, this becomes especially practical. Occupiers often compare options quickly based on quoted rent, but the better comparison is total occupancy cost paired with operational fit. A cheaper lease can become the more expensive deal once recoveries, repairs, and renewal terms are accounted for.

What to review before signing

Before signing any commercial lease, focus on the definitions behind the label. Ask how operating expenses are allocated, which items are controllable, whether management fees are included, and who handles major capital repairs. Review escalation clauses, renewal options, assignment rights, and default provisions with the same care you give the rent schedule.

Tenants should also look at audit rights and historical expense statements where available. Landlords should make sure lease language is consistent, enforceable, and aligned with how the property is actually operated. A poorly drafted lease can create disputes even when the business terms seemed clear at the start.

Michael Law Commercial Real Estate often sees the same issue in lease negotiations: the parties agree on the rate before they fully agree on the structure. That sequence can create avoidable friction later.

The smartest approach is simple. Treat the lease type as a risk allocation decision, not just a pricing term. When the structure matches the building, the business, and the market, the deal tends to perform better long after the initial negotiations are over.