Pulling structured data out of construction drawings and documents is still broken and OCR alone does not cut it

A recent HN post titled OCR for construction documents does not work, we fixed it drew 127 points and 98 comments, with builders detailing how blueprints, spec sheets, and submittals defeat plain OCR and how much manual re-keying that forces on estimators and inspectors. The pain is fresh and recurring: a string of YC-backed launches in the last two years attack the same gap, including Bild AI (understand construction blueprints, 98 points), InspectMind (AI agent for reviewing construction drawings, 59 points), and Fresco (AI copilot for construction superintendents, 80 points). Together they show strong builder demand and active capital for AI that reads construction documents and turns them into takeoffs, RFIs, and field checklists.