About Converting Area Groups to Zones

Area groups in legacy drawings are automatically converted to zones when you open the drawing in the current version of AutoCAD Architecture 2025 toolset. The following table maps area group properties to zone properties:

Legacy area group property New zone property Value/Default Value
Name Name Existing value
Note: Name lists that were attached to the area group are not re-attached to the zone. To use a converted legacy name list, you must attach it to the zone style.
Description Description Existing value
Layer Layer Existing layer
Style Style Area group style is converted to zone style. Properties are matched where possible; new properties have default values.
Calculation modifiers Calculation modifiers Existing modifier
N/A Number of spaces Existing value
N/A Total number of spaces Existing value
N/A Number of zones Existing value
N/A Total number of zones Existing value
Net area Base area Existing value
Calculated area Calculated area Existing value
Net perimeter Base perimeter Existing value
Calculated perimeter Calculated perimeter Existing value
N/A Base volume 0
N/A Zone boundary offset Default value
Calculate area Calculate area Existing value
Calculate perimeter Calculate perimeter Existing value
Can contain areas Can contain spaces Existing value
Can contain area groups Can contain zones Existing value
Rotation Rotation Existing value
Elevation Elevation Existing value
Additional information (Location) Additional information (Location) Existing values
Note: If you are converting a legacy zone structure, and connections between zones are not converted correctly, it is possible that the source drawing contained an error in the content rules for the parent zone. In cases like this, verify that the content rules of the parent zone allow attaching zones, and then re-attach the lost zones.