As-Built Drawings & Documentation Services

As-Built Drawings & Documentation for Verified Existing Conditions

Accurate as-built drawings (CAD, Revit, or point cloud) that reflect what’s actually built, not what was designed twenty years ago.

For renovations, retrofits, facility management, and compliance documentation.

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Serving New England · Based in Portsmouth, NH · Licensed Construction Surveyors

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As-Built Documentation You Can Actually Build From

OAR Scanning delivers field-accurate as-built drawings based on high-definition 3D laser scanning. Whether you need 2D CAD, 3D Revit, or raw point clouds, every deliverable reflects the real building — including the modifications that were never documented.

Old As-Builts Don't Match What's Actually There

Common documentation gaps we see on existing facilities:

Original drawings are decades old or missing entirely — and modifications since then were never documented.
Field conditions don't match the as-builts you do have — designers commit to renovations based on bad data.
Manual measurement teams produce inconsistent results — different surveyors, different numbers, no single source of truth.
Compliance audits require documentation that doesn't exist — and creating it manually takes months.
Renovation discoveries cause expensive change orders — when scan-based as-builts would have caught them in design.

How OAR's Scan-Based As-Built Process Solves These Problems

Verified Field-Accurate Documentation - 3D laser scanning captures every visible surface with sub-millimeter accuracy. As-builts reflect what's really there, not what was supposed to be there.
Multiple Deliverable Formats From One Scan - The same scan data produces 2D CAD drawings, 3D Revit models, AND point clouds. Choose what your project needs.
Industry-Standard Layer & Naming Conventions - Drawings delivered to NCS, AIA, or your firm's CAD standard. Ready to drop into your existing workflows.
Fast Turnaround vs Manual Field Teams - Most facilities are scanned in 1-3 days and documented in 1-3 weeks. Manual teams take months.

Complete As-Built Drawings & Documentation Services

As-Built Drawings & Documentation

Field-accurate 2D and 3D drawings of existing conditions. For renovations, retrofits, compliance, and facility records.

3D Laser Scanning

High-definition terrestrial laser scanning; the foundation of every accurate as-built deliverable.

Point Cloud Deliverables

Raw scan data delivered as registered point clouds for downstream BIM or design workflows.

Scan-to-BIM

When 2D as-builts aren’t enough, we convert scans into intelligent Revit BIM models.

Real Results from OAR As-Built Drawings & Documentation Services

Industrial MRF Retrofit Project

Scanned 110,000 SF facility to create accurate as-built BIM models for equipment planning. Early-phase scanning enabled design team to eliminate conflicts before fabrication.

Result: Client avoided costly field rework by scanning before finalizing design contracts.

Food Processing Plant Expansion

Delivered complete as-built documentation including point clouds, CAD drawings, and Revit models for facility expansion planning.

Result: Reduced site visits by 50% and accelerated project timeline with remote collaboration using scan data.

What Our Clients Say

Frequently Asked Questions

What formats do you provide as-built drawings in?

DWG (2D and 3D AutoCAD), DXF, PDF, Revit (RVT), and point cloud files (RCP, E57, LAS). Tell us your downstream workflow and we’ll deliver in the right format with your preferred layer conventions.

How do you handle MEP systems in as-built documentation?

We model MEP visible at the time of scanning — ductwork, piping, conduit, electrical panels, equipment. For systems above ceilings or behind walls, we coordinate access or note the gap explicitly. We don’t guess at what we can’t see.

What's typical accuracy and tolerance?

Individual measurements: sub-millimeter. Registered scans across a full facility: ±2-4mm depending on scan density and facility size. Far more accurate than tape-and-tripod surveys.

Do you scan during active operations?

Yes. Our scanners are portable and quiet. We routinely scan operating manufacturing plants, distribution centers, and occupied buildings without disrupting work.

Can you deliver in our firm's CAD standards?

Yes. Send us your template (DWT) and layer/lineweight/text standards, and we deliver in your format. No reformatting on your end.

Do you handle hazardous or restricted environments?

Yes — we routinely scan operating manufacturing facilities, energy sites, food processing plants, and other sensitive environments. PPE, safety training, and confined-space coordination are standard.

What does as-built documentation cost?

Pricing scales with facility size, deliverable type, and complexity. Typical projects range from $4,000 to $35,000+. Request a quote for a fixed price within 24 hours.

Why Facility Teams Choose OAR for As-Built Documentation

Field-accurate drawings, multiple formats, industry-standard conventions.

Want us to reach out?

3D Laser Scanning Services

in New England

Portsmouth, NH

603-766-1989

[email protected]