As-Built & Verification 3D Laser Surveys
3D laser scanning captures an accurate record of how your asset truly exists on site. Every dimension can be checked with confidence, helping designers and contractors reduce rework, avoid delays and keep projects moving smoothly.
What Is an As-Built Survey?
Capture exactly what was built – not just what was designed.
As-Built Surveys provide an accurate measurement of how a building or asset truly exists on site. Using 3D laser scanning, we capture millions of precise points to create a reliable digital record that replaces outdated drawings and confirms what has actually been constructed. It gives project teams verified information instead of assumptions or mark-ups.
& Why does Verification Matter?
Drawings rarely match reality — on-site changes, clashes and tolerances create deviations that only scanning can reveal.
Reduces rework and delays — decisions are based on verified conditions, not incorrect information.
Essential for refurbishment — many buildings have no accurate records; laser scans provide a true starting point.
Improves MEP coordination — accurate geometry prevents service clashes in plant rooms and risers.
Supports handover and FM — teams receive dependable, up-to-date drawings and models.
Strengthens QA and compliance — deviation checks prove installation accuracy against approved designs.
Where As-Built Surveys Are Used
As-built surveys are essential wherever accurate, up-to-date dimensional information is required. From early design and coordination to handover and long-term asset management, they provide a verified record of how a structure, system or facility actually exists on site — not how it was intended to be built.
This matters because if your project requires the submission of drawings or models, how do you know they’re correct until they’ve been independently measured and checked? Without verification, errors go unnoticed, clashes remain hidden, and the risk of costly rework increases dramatically.
A high-quality as-built survey eliminates this uncertainty, giving design teams, contractors and asset owners dependable data they can trust.
All industries benefit from As-Built Verification
Typical Uses of As-Built Surveys
Design validation – Confirm that existing conditions match design assumptions before progressing to detailed design.
Clash detection – Identify conflicts between new and existing assets early, preventing delays and rework.
Record information for handover – Provide accurate drawings and models for O&M documentation and long-term asset management.
Refurbishment & retrofitting – Understand complex live environments before installing new equipment, pipework, or structures.
Compliance & approval submissions – Supply verified geometry to clients, regulators, and third-party reviewers.
Fabrication accuracy – Ensure off-site manufactured components fit first time by referencing the true site dimensions.
Construction monitoring – Track deviations throughout a project and evidence works as they are installed.
Why Choose PointSCAN for your As-Built Surveys?
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Experienced in operational & hazardous sites
Fully trained teams able to work safely in confined spaces, water & wastewater facilities and industrial environments. -
Consistently high-accuracy results
Faro Focus scanners and robust control networks ensure measurements you can trust for verification and coordination. -
Clear, compliant deliverables
Point clouds, 2D drawings, 3D models and Revit outputs produced to consistent standards and fully checked. -
Verification built in
All drawings and models are checked against the point cloud to remove assumptions and reduce costly rework. -
Minimal disruption
Rapid capture and efficient workflows allow surveys to be completed safely around live operations.
3 Simple Steps to As-Built Verification
From initial site capture to As-Built delivery, our workflow is designed for precision, consistency, and speed.
Here’s how we turn complex environments into accurate, actionable 3D data.
ACQUISITION
Safe, fast & accurate measurement data captured by experienced survey engineers delivering detailed registered point cloud data.
2D DRAWINGS
Reflect the true built condition, not design intent or contractor mark-ups.
Suitable for planning, redesign, O&M packs and project handover.
3D MODELLING
Using the “as-is” point cloud, we create measured 3D CAD or BIM models that accurately represent the built asset.
Even if your project was fabricated and constructed directly from the design model, it’s important to recognise that small on-site changes often occur during installation. These adjustments aren’t always recorded, updated, or fed back into the design environment. An as-built survey is the only way to accurately capture these variations, ensuring the final drawings or model truly reflect what has been constructed.
Verification of As-Built Survey Deliverables
Every project requires different levels of detail, verification and format. We provide clear, accurate documentation tailored to your design, construction or asset-management needs.
You can choose from:
Registered Point Cloud
High-density, colourised scan data aligned to site control.2D As-Built Drawings
Plans, elevations, sections and GA drawings ready for submission and design work.3D CAD Models
DWG / IFC models for coordination, redesign and clash detection workflows.BIM-Ready Revit Models
Fully structured models to LOD100–LOD500 for project information models (PIM) and asset information models (AIM).Topographic & Measured Building Outputs
Levels, features, floor plans, structural grids and fabric details.Verification Overlays
Point-cloud-to-model comparison to highlight variances, misalignments and construction deviations.
Clients across the UK & Europe that have benefited from our As-Built surveys.
Request an As-Built Survey Quotation
Receive a fast, accurate quotation for your next project — whether it’s industrial, commercial or residential.
Provide a few project details below and one of our survey engineers will prepare a tailored proposal, including scope, deliverables and timescales
Alternatively give us a call on 01767 661400 and a member of our team will be happy to discus you project requirements