Share Email Facebook Twitter LinkedIn TopographySurface.IsSiteSubRegion Property Identifies if this element represents a subregion. Namespace: Autodesk.Revit.DB.ArchitectureAssembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34) Syntax C# public bool IsSiteSubRegion { get; }Property ValueBoolean See AlsoReferenceTopographySurface ClassAutodesk.Revit.DB.Architecture Namespace