How often should as-built documentation be updated?

When and How Often to Update As-Built Documentation

As-built documentation is a point-in-time snapshot of building conditions. The moment any modification is made — a wall moved, a pipe rerouted, an electrical panel added — the documentation becomes outdated. Knowing when to update is critical for maintaining useful, reliable building records.

Trigger Events: Update Immediately After

The following events should always trigger an as-built documentation update:

• Renovation projects — Any modification to walls, floors, ceilings, or building systems
• Tenant improvements (TI) — Office buildouts, retail space modifications, restaurant kitchen installations
• MEP system modifications — HVAC upgrades, electrical panel additions, plumbing rerouting
• Structural modifications — Openings cut in walls or floors, columns added or removed, mezzanine installations
• Fire protection changes — Sprinkler system modifications, riser relocations, new suppression zones
• Roof replacements or modifications — Especially if adding equipment (RTUs, solar panels, antennas)
• ADA compliance upgrades — Ramp additions, restroom modifications, doorway widening
• Ownership changes — New owners should verify existing documentation accuracy before relying on it

Facility Management Best Practices

For buildings with active facility management programs, industry standards recommend:

• Verify documentation accuracy every 3-5 years even if no major renovations have occurred — minor changes accumulate over time
• Maintain a change log that records all modifications between full documentation updates
• Scan specific areas after targeted changes rather than re-scanning the entire building (progressive scanning approach)
• Integrate with digital twin platforms for real-time documentation that stays current

The Cost of Outdated Documentation

Relying on outdated as-built drawings has measurable consequences:

• Renovation cost overruns: When existing conditions don't match drawings, contractors encounter surprises that generate change orders. Industry data shows this adds 5-15% to project costs on average.
• Return site visits: Manual measurement projects average 2-3 return trips for missed or incorrect dimensions — each costing time and money.
• Design conflicts: Architects designing renovations based on inaccurate as-builts may produce designs that conflict with actual conditions, requiring expensive redesigns.
• Permit delays: Building departments may reject permit applications that reference documentation inconsistent with site conditions.
• Insurance claim issues: Outdated documentation may not support claims for current building value or damage extent.

Progressive Scanning: A Cost-Effective Approach

Rather than re-scanning an entire facility each time a change occurs, progressive scanning updates only the affected areas:

1. Baseline scan — Complete facility documentation (one-time investment)
2. Targeted updates — Scan only areas affected by renovations or modifications
3. Point cloud merging — New scan data is registered into the existing baseline dataset
4. Updated deliverables — Only affected floor plans and views are redrawn

This approach keeps documentation current at a fraction of the cost of full re-scanning. A 100,000 sqft facility with a $15,000-$25,000 baseline scan might spend $3,000-$5,000 per targeted update.

Digital Twin Integration

The most advanced approach to maintaining current as-built documentation is digital twin integration:

• The 3D scan data serves as the geometric foundation of a digital twin
• Building systems data (HVAC, electrical, plumbing) is layered on top
• Changes are recorded in the digital twin as they occur
• The documentation stays perpetually current

While digital twins represent a larger upfront investment, they provide ongoing value through:

• Real-time facility management
• Predictive maintenance capabilities
• Space utilization analysis
• Emergency response planning

Recommended Update Schedule by Building Type

THE FUTURE 3D offers both full-facility scanning and targeted progressive updates. Contact us to discuss a documentation maintenance plan for your facility.