Building owners should check their property's square 
footage. You may actually find hidden value in your 
property. There can be a significant difference between the 
usable square footage a tenant occupies and the rentable 
square footage they pay rent on.

In multi-tenant 
buildings, tenants share the common area and the industry 
accepts the fact that tenants should pay for their share of 
these spaces. There are widely accepted standards 
established on how to calculate the difference between 
usable and rentable square footage, and it can eventually 
have a real impact on the value of your property.

If you 
have been leasing space on a usable basis, after you make 
this adjustment your building will actually get larger, and 
- as a result - may be more valuable in the future.