| GroundFloors | TArray | The list of above-ground floor layer data for this site area. | Category: B1SiteAreaBuiltSaveData |
| Basements | TArray | The list of basement floor layer data for this site area. | Category: B1SiteAreaBuiltSaveData |
| DoorPermissionGroup | EB1DoorPermissionGroup | The door permission group controlling who can access this site. | Category: B1SiteAreaBuiltSaveData |
| DevlopersDoorPermissionIds | TArray | The list of developer-defined door permission IDs for this site. | Category: B1SiteAreaBuiltSaveData |
| DevelopersPermissionsMessageId | FName | The message ID shown when developer permissions restrict access to this site. | Category: B1SiteAreaBuiltSaveData |
| bSetBuiltAreaSize | bool | Whether a custom built area size has been explicitly set for this site. | Category: B1SiteAreaBuiltSaveData |
| BuiltAreaSize | FVector | The bounding size of the built area in world units. | Category: B1SiteAreaBuiltSaveData |
| BuiltAreaCenter | FVector | The center position of the built area in world units. | Category: B1SiteAreaBuiltSaveData |
| SavedSiteId | FName | The ID of the site this built data was saved from. | Category: B1SiteAreaBuiltSaveData |
| AuthorName | FString | The name of the author who created or last modified this site. | Category: B1SiteAreaBuiltSaveData |
| bSiteAreaDevLockDisabled | bool | Whether or not the UnlockSiteArea cheat was used. | Category: B1SiteAreaBuiltSaveData |
| bCheatUnlockGizmoAxis | bool | Whether the gizmo axis unlock cheat was used on this site, latching it into cheat build mode. | Category: B1SiteAreaBuiltSaveData |
| bHasTPOPlanRevision | bool | Whether this preset includes TPO plan revisions. | Category: B1SiteAreaBuiltSaveData |
| bHasObjectAuthority | bool | Whether this preset includes object authority settings. | Category: B1SiteAreaBuiltSaveData |
| TPOPlans | TArray | TPO plans included in the site preset. | Category: B1SiteAreaBuiltSaveData |