> For the complete documentation index, see [llms.txt](https://docs.geovision.cloud/introduction/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.geovision.cloud/introduction/readme.md).

# 1. Overview of Revit Families

In Revit, all elements are organized into Families, which are further classified into Typesand Instances:

• Families: Groups of elements with a common set of properties and a related graphical representation.

• Types: Variations within a family that share the same set of properties.

• Instances: Individual placements of a type in the project.

Revit families are divided into two main categories:

• System Families

• Loadable Families