How to Understand a NNN Lease in Commercial Real Estate
Introduction
When evaluating commercial leases, understanding who pays for what is key to accurately forecasting your costs. One of the most common lease structures in retail and office real estate is the NNN Lease, also known as a Triple Net Lease.
Purpose:
This article will help you understand what a NNN lease is, how it’s structured, and how to calculate your total rent—including hidden costs.
Overview:
We’ll define the components of a triple net lease, show how to estimate gross rent, and provide tips for analyzing your leasing costs effectively.
Step 1: Understand What “Triple Net” Means
Explanation:
In a Triple Net (NNN) lease, the tenant pays three additional costs on top of base rent:
Property Taxes
Property Insurance
Common Area Maintenance (CAM)
CAM may include expenses like snow removal, landscaping, janitorial services, utilities, and other building upkeep.
Actionable Tip:
Ask for a detailed breakdown of the NNN charges upfront. CAM charges can vary widely depending on the property type and services included.
Step 2: Calculate Total Rent Including NNN
Explanation:
Your lease will typically quote two numbers:
Base Rent (e.g., $20 per square foot)
NNN Charges (e.g., $12 per square foot)
To calculate your gross rent, simply add the base rent and NNN charges together.
Formula:
Gross Rent = (Base Rent + NNN) × Square Footage ÷ 12 (for monthly rent)
Example/Case Study:
Let’s say your base rent is $20 PSF, and the triple net is $12 PSF. That’s a total of $32 per square foot.
For 1,000 square feet:
Annual Rent = 1,000 × $32 = $32,000
Monthly Rent = $32,000 ÷ 12 = $2,666.67
Actionable Tip:
Always calculate your total occupancy cost, not just the base rent. This ensures you’re budgeting accurately.
Step 3: Recognize the Flexibility and Risks
Explanation:
While NNN leases offer landlords predictable returns, tenants take on the risk of fluctuating expenses—especially with CAM. However, they often offer lower base rents compared to full-service leases.
Actionable Tip:
Review past CAM reconciliations and ask for estimates for future years. This will help you anticipate changes and negotiate more confidently.
Conclusion
Summary:
A Triple Net (NNN) Lease is structured so tenants pay for property taxes, insurance, and CAM in addition to base rent. Understanding the total cost is essential for budgeting and comparing leases.
Key Takeaways:
NNN = Property Taxes + Insurance + CAM
Always combine NNN and base rent to get your total cost
Review historical CAM data to predict future charges
Let me know if you’d like this turned into a downloadable PDF, or contact me if you would like to learn more about commercial real estate.
Matt Kulbe
Since 2007 Matt has specialized in Commercial Real Estate, specifically in Industrial and Office leasing and investment sales. He has been involved in over 850 commercial real estate transactions. With a wealth of Industrial & Office experience, Matt has actively been involved with Landlords, Tenants, Buyers and Sellers from negotiations to execution, while focusing on the client’s needs and business.
