One model,from first scanto final decade.

Terrestrial and airborne lidar, fused with photogrammetry, give every project a registered point cloud of what is really there before a single line is drawn.

A two-person crew covers 4 000 m² of facade and interior in a day. Each scan is registered against survey control the same night, so the design team opens a checked model within 48 hours of the crew leaving site.

Architecture, structure and energy share one federated model, rebuilt every night against the latest survey, so each decision is tested on the building as it stands.

Thermal and daylight simulations run on the same geometry the contractor builds from. When the west facade of Casa Mares showed a summer peak, the fins were redrawn and the change was priced the next morning.

Sensors for heat, air, light, sound and movement stream into the model, so performance is checked against the design every hour of the building's life.

At Ostra Cultural Hall, people counters showed the interval crowd stalling at one door. It was widened in the first summer shutdown and the queue fell by 64 percent.

Drawings, scans and decisions are written to open formats in three locations, indexed by place and checked for integrity every week.

The archive holds 318 420 000 captured points across 38 projects in 14 countries. Any record can be traced from a sensor reading back to the scan and the decision that produced it.