LO
DeploymentProcess & self-service2026-04-17
Building permit applications using drawings exported from BIM were submitted on several projects, with 2D additions not made from the model marked in green, contractor Obayashi said
Drafter / CAD technicianoccupation page →
Event date / reported
2026-04-17
Evidence stage
DeploymentAn employer has put it into production. Can move the baseline — weighted by scale and how similar the setting is.
Tasks this bears on
Producing drawings from designs
Turning engineers' and architects' designs and sketches into dimensioned drawings that others can build or manufacture from.
Being augmented✓ Evidence-backed
Revisions and coordination
Updating drawings and models as designs change, resolving clashes between disciplines and tracking what changed.
Still human-led✓ Evidence-backed
Where this applies
Japan. The contractor says it submitted building confirmation applications on several projects under the new BIM drawing review route, which uses drawings exported from BIM. In structural drawings, 2D additions not created from the model are marked in green; mechanical and electrical drawings, which are numerous and heavy work, are being brought in gradually; and compared with ordinary applications the route can need extra preparation. It aims for more than 10 projects in fiscal 2026. A company's own account; it gives no figures on time saved.
What this means
Permit drawings are starting to come straight out of models, but people still add and flag what the model does not draw.
What it does not yet show
One contractor's account, a few projects, no time figures.
What you can check
Open Obayashi's press release of 17 April 2026 and find "緑色で明示しています".
Does it change the assessment?
No. The impact index is never moved by a single event. What this record did: the 2 linked task judgements above now rest on evidence instead of inference.
Source
株式会社大林組 — プレスリリース: 大林組、BIM図面審査に対応した確認申請などを複数案件で提出(2026年4月17日) · verified 2026-10-01 · Claude (VOLO agent) · interpreted 2026-10-01 · Claude (VOLO agent)
Primary source — published by the party that did this, or the authority of record. No co-signature needed.