What this does: Every time you upload a new CoStar CSV, the dashboard compares the new data against the last saved baseline and highlights what changed:
🟢 NEW — properties that weren't in the last upload
🔵 ↑ Status — buildings that changed status (e.g. Under Construction → Existing)
🟡 SF ↕ — available square footage changed
Workflow: Before uploading new CoStar data → click Save Current as Baseline → then upload the new CSV. Changes will be highlighted automatically.
No baseline saved yet.