Find every DWG hiding
in your Revit model.

Why imported CAD makes Revit slow

• Every Import CAD brings the DWG's layers, line styles, hatches and text styles into the project as permanent object styles - they stay after you delete the import.
• Imports nested inside families (a manufacturer's DWG traced into a detail component, a logo in a title block) are copied into every project that loads the family.
• Exploded imports become thousands of lines and regions that regenerate in every view.
• A DWG placed in a 3D view or on the wrong workset drags every view that regenerates it.

Where Revit lets you look (and where it doesn't)

The free way: Parapet Audit

Parapet Audit is a free Revit add-in (no license, no trial, no account) that puts everything in one list:

A cleanup routine that works

1. Run Audit; sort by weight. Delete imports that appear in no sheeted view.
2. Replace surveys and consultant backgrounds with links (not imports) on a dedicated workset, visible only in the views that need them.
3. Open families that contain imports, retrace with native detail lines, reload.
4. Purge Unused twice, then delete leftover imported line patterns and object styles.
5. Audit + Compact on Save. Compare file size before and after - it is usually the biggest single win available.

FAQ