What Is a Single Net Lease? Definition, Structure, and Comparisons

Ivan Smiljanic • Insights • April 27, 2026 • Time reading: 7 min

A single net lease is a contract in which the tenant agrees to pay a predetermined price for rent as well as coverage for Commercial leases don’t follow a single template. Depending on how a deal is structured, the division of costs between landlord and tenant can look very different — and understanding those differences matters before you sign anything.

A single net lease sits at the simpler end of the net lease spectrum. It’s not the most common structure in commercial real estate, but it appears often enough that tenants, landlords, and investors need to know what they’re actually agreeing to.

What Is a Single Net Lease?

A single net lease — sometimes written as an N lease — is a commercial lease structure in which the tenant pays base rent plus one additional property expense: property taxes. All other operating costs — insurance, maintenance, repairs, utilities — remain the landlord’s responsibility unless the lease specifies otherwise.

That single cost pass-through is what gives the structure its name. One “net” charge on top of rent. In a double net lease, the tenant picks up taxes and insurance. In a triple net lease, taxes, insurance, and maintenance all shift to the tenant.

The single net lease sits at the lightest end of that cost-shifting spectrum — more tenant responsibility than a gross lease, less than a double or triple net.

How a Single Net Lease Works in Practice

In a single net lease, here’s how costs typically divide:

Tenant is responsible for:

Landlord remains responsible for:

One practical nuance: even though the tenant is responsible for property taxes under a single net lease, many landlords still prefer to collect the tax payment directly and remit it themselves. This protects the landlord from the risk of a tenant missing a payment — since unpaid property taxes ultimately become the landlord’s problem regardless of what the lease says.

Because the tenant is taking on an additional cost beyond base rent, landlords will typically offer a lower base rent than they would under a gross lease. The all-in cost to the tenant over the lease term may be similar either way — the difference is in how that cost is structured and who manages which payment.

Why Single Net Leases Are Less Common Than Other Net Lease Types

Single net leases occupy an awkward middle ground that limits their appeal on both sides.

From the landlord’s perspective, a single net lease shifts only one expense to the tenant — property taxes. Insurance and maintenance costs remain with the landlord, which means the cost-shifting benefit that makes net leases attractive to landlords is only partially realized. If the goal is to reduce exposure to variable property expenses, a double or triple net structure does that more completely.

From the tenant’s perspective, taking on property tax exposure comes with some unpredictability — tax assessments can change, and the tenant bears that variability without the full offset of managing the property’s other costs.

As a result, landlords who want to shift operating costs to tenants tend to go straight to double or triple net structures, where the division of responsibility is cleaner and the economic benefit is more meaningful. Single net leases do appear — particularly in smaller commercial deals, owner-occupied properties being leased back, or certain retail scenarios — but they’re not the dominant structure in the market.

Single Net Lease vs. Double Net Lease

This is the comparison that comes up most often, and the distinction is straightforward.

In a single net lease (N lease):

In a double net lease (NN lease):

The double net structure is considerably more common than the single net, particularly in retail and office leasing. By adding insurance to the tenant’s obligations, the landlord offloads two of the three major variable operating expenses. Insurance premiums can shift meaningfully year to year — especially in certain California markets where costs have risen sharply — so landlords have a real incentive to pass that exposure to the tenant.

For tenants evaluating a double net vs. single net, the key question is how much the insurance premium adds to their effective occupancy cost, and how much visibility they have into potential rate changes over the lease term.

Single Net Lease vs. Triple Net Lease

The triple net lease (NNN) is the most landlord-favorable of the net lease structures — and the most well-known. Under a triple net lease, the tenant assumes responsibility for all three major operating expenses:

Triple net leases are the dominant structure for single-tenant retail properties — think freestanding fast food locations, pharmacies, and dollar stores — as well as many industrial and sale-leaseback deals. They’re popular with investors precisely because the landlord’s income is highly predictable: the tenant handles the variables, and the landlord collects a relatively stable net rent.

Compared to a single net lease, the NNN structure shifts significantly more operational responsibility — and cost exposure — to the tenant. In exchange, base rents in triple net leases are typically lower than in gross or single net leases, reflecting the tenant’s broader cost burden.

Single Net Lease vs. Gross Lease

At the opposite end of the spectrum, a gross lease (also called a full-service lease) bundles all operating expenses into a single monthly rent payment. The tenant pays one number; the landlord handles taxes, insurance, utilities, and maintenance from that payment.

Gross leases offer simplicity and cost predictability for tenants — particularly in office markets, where modified gross and full-service gross leases remain the standard. The tradeoff is that base rents are higher than in net lease structures, since the landlord is absorbing all operating costs.

For tenants comparing a single net lease to a gross lease, the question is whether the lower base rent under the net structure actually produces better economics once property tax exposure is factored in — and whether that exposure introduces variability they’re not comfortable with.

Who Single Net Leases Work Best For

Tenants who are comfortable with some cost variability and want a lower base rent than a gross lease would offer. Single net leases work reasonably well for established businesses with stable operations and some familiarity with how local property tax assessments work.

Landlords who want a modest degree of cost-shifting without requiring the tenant to take on the full operational load of a double or triple net structure. Can be appropriate for smaller properties or shorter lease terms where a full NNN structure feels like more structure than the deal warrants.

Investors looking at single-tenant properties should understand that a single net lease provides less income predictability than a triple net, since the landlord retains insurance and maintenance exposure. That said, single-tenant net lease properties — regardless of specific net lease type — still offer the core appeal of passive, predictable cash flow relative to multi-tenant assets.

Key Things to Confirm Before Signing a Single Net Lease

Whatever the lease type, the details in the document matter more than the label. Before executing a single net lease, confirm:

Net lease structures aren’t complicated once you understand the framework — but the details in any specific lease agreement can vary significantly from the standard definition. If you’re evaluating a single net lease or comparing lease structures for a commercial property, we’re happy to walk through the terms and help you understand what you’re actually signing.

Explore More Insights