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As-built drawings are most accurately produced by the people who did the work — because only they know where things actually ended up. Here's how responsibility is typically divided.
The GC is typically responsible for delivering the as-built package at project completion. They coordinate as-built documentation from all subcontractors, verify it for completeness, and deliver it to the owner. On smaller projects, the GC may capture all as-builts directly.
Each trade is responsible for documenting their own work as-built. The electrical contractor documents final panel locations, circuit runs, and device locations. The plumber documents pipe routing and fixture locations. The HVAC contractor documents duct layout, equipment locations, and commissioning data. These get rolled up into the GC's package.
On larger projects, the architect or engineer of record may review and stamp the as-built drawings. Their involvement varies by project type and contract.
On smaller commercial and residential projects, the reality is that as-built documentation often falls to whoever is last on site. That's usually the GC or a finishing trade. The best contractors build as-built capture into their standard workflow — GPS-tagged photos throughout the job, not a scramble at closeout.
Manifold makes this practical. Every GPS photo is automatically tagged with location and timestamp. Orbit Measure scans capture measurable 3D records of existing conditions. PDF reports export in one tap. See our as-built records page for the full workflow.
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