The triple net lease in commercial real estate requires that the tenant pay a significant share of expenses of operation, as well as all taxes and insurance related to their rental unit. This type of lease helps the landlord by fixing their costs, as their rents are fixed.
Of course, fixed rent is lower with the triple net lease. If the building is a newer one, tenants may find triple net to be preferable to other choices. If establishing a new business, the triple net tenant in a new building can enjoy lower rent and expenses in their first few years. Once established, they may have grown to the point that larger space is necessary. The move can be to a different type of lease or another newer facility.