Every Building You've Ever Been In Was Designed By Software Built in 1997

• AEC is a $13T market running on 1997-era Revit monopoly.
  • Autodesk bought Revit in 2002 for $133M; now ~$3B ARR, 95%+ market share.
  • MEP added in 2007 — barely touched since.
• 85% of projects over budget; 75% finish late.
  • $177B/yr lost to rework in the US alone; 70% traced to design errors.
  • Avg dispute: $60M, takes 12.5 months to resolve.
• Three attack vectors: replace Revit, wrap it, or automate the services layer.
  • Motif (founded by Autodesk’s ex-co-CEO) building cloud-native BIM from scratch.
  • LightTable: AI doc review catching coordination failures Revit misses.
  • Endra: automates MEP design (fire, electrical, mechanical) end-to-end.
• Pricing shift unlocks the real opportunity: per-seat → margin-recovered.
  • $150B MEP services market is the wedge; document review catches ~30% today.
• Data center buildout + talent shortage = urgent demand, no incumbent response.

Joe Schmidt, David Haber, Caroline Goggins, Zabie Elmgren (a16z) · 2026-03-30 · Read on a16z.com