A triple net lease — commonly abbreviated as NNN — is a lease structure where the tenant pays base rent plus all three major property expenses: property taxes, building insurance, and common area maintenance (CAM). This shifts virtually all operating costs from the landlord to the tenant, creating a predictable, low-management income stream for investors. It is the most popular lease structure in commercial real estate investing, and there are good reasons why.
How Does a Triple Net Lease Work?
In a standard NNN lease, the tenant is responsible for three categories of expenses on top of base rent:
- Property taxes. The tenant pays their proportionate share (or all) of real estate taxes assessed on the property.
- Insurance. The tenant pays for building insurance premiums. In Florida, this is a significant line item given elevated insurance costs.
- Common area maintenance (CAM). The tenant pays for maintenance of shared areas — parking lots, landscaping, exterior lighting, and building systems.
The landlord receives the base rent as essentially net income. This is why the lease is called "triple net" — three categories of expenses are netted out and passed through to the tenant.
Why Do Investors Love NNN Properties?
NNN-leased properties are favorites among commercial real estate investors for several compelling reasons:
- Predictable income. With operating expenses passed to the tenant, the landlord's income is highly predictable. There are no surprise maintenance bills or tax increases eating into returns.
- Minimal management. The tenant handles day-to-day property operations. Many NNN investors never visit their properties. This is as close to passive income as real estate gets.
- Creditworthy tenants. Many NNN properties are leased to national or regional tenants — pharmacies, fast food chains, auto parts stores, banks — with strong credit ratings. This reduces default risk.
- Long lease terms. NNN leases commonly run 10 to 25 years, providing long-term income stability.
- Built-in rent increases. Most NNN leases include annual escalations, typically 1.5 to 2 percent, providing inflation protection.
- 1031 exchange friendly. NNN properties are popular 1031 exchange targets because they are easy to identify and close within the exchange timeline.
What Is the Difference Between NNN and Other Lease Types?
The key difference is who bears the operating cost risk. In a gross lease, the landlord absorbs all operating expenses and prices them into a higher base rent. If taxes or insurance spike, the landlord takes the hit. In a NNN lease, those increases pass through to the tenant. There are also single net (N) and double net (NN) leases that split the expenses differently, but NNN is by far the most common net lease structure in the market.
How Do You Evaluate a NNN Investment Property?
When evaluating a NNN investment, focus on these key factors:
- Tenant credit quality. A NNN lease is only as good as the tenant paying it. Research the tenant's financial health, credit rating, and industry outlook.
- Remaining lease term. Longer remaining terms are generally more valuable. A property with 15 years remaining is worth more than one with 3 years left, all else being equal.
- Cap rate. This measures your return relative to the purchase price. Lower cap rates typically indicate lower risk (better tenant, better location). Higher cap rates indicate higher risk — or higher potential returns.
- Location quality. Even with a strong tenant, location matters. A property in a high-traffic area with good demographics will re-lease more easily if the tenant leaves.
- Rent escalation structure. Fixed increases, CPI-based increases, or flat rent. Each affects long-term returns differently.
- Renewal options. Tenant renewal options at below-market rates can limit upside. Understand the renewal terms.
What Are the Risks of NNN Investing?
NNN investing is not risk-free. The biggest risks include:
- Tenant default. If the tenant goes bankrupt or closes, you have an empty building with no income and full expense responsibility.
- Single-tenant concentration. All your income depends on one tenant. No diversification.
- Below-market rent at lease end. If the lease was signed years ago at rates below current market, the built-in escalations may not have kept pace. But this can also be an opportunity at renewal.
- Roof and structure responsibility. Some NNN leases are "absolute NNN" where the tenant covers everything, including roof and structure. Others leave these to the landlord. Read the lease carefully.
Where Do NNN Properties Fit in a Portfolio?
NNN properties are ideal for investors who want steady, predictable cash flow without active management. They are particularly popular with retirees, out-of-state investors, and 1031 exchange buyers looking for stable replacement properties. Many investors pair NNN properties with more actively managed assets like multifamily or value-add retail to balance their portfolio between stability and growth.
The Bottom Line
Triple net leases offer a compelling combination of predictable income, minimal management, and long-term stability. But they are not one-size-fits-all. Tenant credit, location, lease terms, and purchase price all matter. With 23+ years of real estate experience, I help investors evaluate NNN opportunities in Tampa Bay and across Florida, making sure the deal works on paper and in practice.