Net Area is sometimes called net assignable area, or the area of each programmed space. It is the space a client needs for their specific program functions like offices, work rooms or conference rooms. It does not include the space needed for circulation, partitions or building amenities, like restrooms.
Net area excludes circulation, like corridors, and incidental space. In the example above, the cyan in the middle represents the net area. The lobby may or may not be net area, depending on whether the space is shared among multiple tenants. The lobby or reception area may be a programmed space for a doctor's office, but for a multi-tenant office building, that space may be shared, and be calculated as part of the rentable area instead.
It includes individual workspaces, dedicated and shared support spaces (break room, copy room), and any special or critical spaces.
It is measured from the centerline of interior partitions of a space.
Total Net Area is calculated by adding together all programmed areas.