Architects didn't "go BIM." GSA mandates in 2003, then institutional owners, pulled it through the profession. Watch the two curves — owner mandates lead, architect adoption follows with a lag.
2000
Owner mandates
0%
Architect adoption
0%
Lag (years)
—
Demand is the leading indicator. Architects didn't choose BIM; their clients did, and the profession followed about four years later.