What Is an NNN Lease

A single net lease has the tenant paying property taxes only, with insurance and maintenance still on the landlord. A double net lease adds insurance to the tenant's side, leaving maintenance and often the roof and structure with the landlord. A triple net lease pushes all three onto the tenant, though even here the specific lease language matters, because some triple net leases still carve out roof and structure as a landlord obligation despite the NNN label on the flyer.

A national retailer or restaurant chain generally prefers a net lease because it isolates real estate costs from the landlord's markup, giving the tenant more predictable long-term occupancy costs and, in many cases, more control over how a location is maintained. In exchange, the tenant often negotiates a longer initial term with multiple renewal options, since both sides benefit from a stable, long-duration relationship once the lease is signed.

Because the building itself generates a fairly predictable rent stream once leased, the underwriting shifts almost entirely to the tenant's ability to keep paying. A landlord evaluating a net lease offering in the Detroit area should weigh the guarantor, corporate versus franchisee, the store's sales performance relative to its rent if that data is available, and how the location fits into the tenant's broader real estate strategy, since a chain closing underperforming stores nationally is a real risk even for a location that looks stable today.

Vacancy risk in a single-tenant net lease building is binary: the property is either fully leased or fully vacant, with no partial income cushion the way a multi-tenant building would have. That makes the tenant's staying power the central variable in the whole investment.

The most frequent mistake is treating the advertised cap rate as the full picture without checking the rent bump schedule, the remaining primary term, and whether any co-tenancy or exclusivity clauses could affect future re-leasing. A second common error is assuming triple net means zero landlord obligation in every case; the actual lease document, not the marketing label, determines who pays for a roof replacement or a parking lot resurfacing.

An NNN property is a frequent replacement choice for an exchanger moving out of an actively managed asset, since the lease structure minimizes ongoing landlord duties while still satisfying the like-kind requirement as investment real estate. The exchanger's qualified intermediary and the identification paperwork treat an NNN building the same as any other replacement property, with the usual 45-day identification and 180-day closing deadlines applying regardless of how passive the asset is to operate.