Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Object: Workroom roof and light-court skylight boundary
Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
Do not make the whole light court a skylight, or substitute an occupied slab for the workroom roof.
Existing datums-frame extraction records local W401 skylight levels; assigned sections do not establish their perimeter.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.