Triple-Net or a NNN, is a type of lease agreement on a property. In this video, you'll learn a simple way to understand this concept through an easy and brief explanation. A single net lease on a commercial property includes property taxes. Whereas, a double net lease includes property taxes and property insurance. Finally, a triple net lease includes taxes, insurance, and maintenance. Of course, that's in addition to fees for rent and utilities. Smaller investors can participate in triple net lease real estate by investing in real estate trusts – or REITs.