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As-built surveys & as-built models

We capture the actual as-built state of a building, plant or structure as a survey-grade point cloud, and turn it into accurate as-built drawings, 3D and BIM models — a reliable record of what's really there, not what the old drawings say. EU-based, worldwide delivery.

Partners

⚠︎ EU-based · NDA & GDPR · worldwide delivery

BP
SOCAR
eni
OMV
Canadian Natural
Tullow Oil
Humbly Grove Energy
Vaalco
Illustration

What is an as-built survey?

An as-built survey is a precise record of a structure as it has actually been built. We capture it with 3D laser scanning as a millimetre-accurate point cloud and turn it into as-built drawings, 3D or BIM models — reflecting reality today, including the changes the original drawings never captured.

Offshore oil and gas production platform at sunset on the North Sea

01 · the problem

As-designed rarely equals as-built

Complex ageing piping on an offshore platform topside — the as-built reality drawings miss

Original drawings get outdated, lost, or never matched the finished build after on-site changes. Renovating, extending, retrofitting or managing a facility on the wrong geometry means clashes, rework and delays. An accurate as-built record removes that risk — and it's the foundation for everything downstream, from BIM to a digital twin.

02 · what we deliver

An accurate record of what's actually built

As-built laser scanning

buildings, plants and structures, interiors and exteriors.

Registered point cloud

millimetre-grade, cleaned and QA'd to survey tolerances.

As-built 2D drawings

plans, sections and elevations.

As-built 3D / CAD models 

accurate geometry at your required detail.

As-built BIM

intelligent, object-based models (scan-to-BIM) at your LOD.

As-built vs as-designed verification

confirm what was built against the design intent.

We deliver the accurate as-built record — point cloud, drawings and models. Design and engineering decisions stay with your team; we give them a basis they can trust.

03 · use cases

Where an accurate as-built record pays off

  • Renovation & refurbishment

    design against the real building.

  • Extensions & modifications

    fit new work to existing geometry.

  • Facility & asset management 

    a reliable current-state record.

  • Retrofit engineering

    accurate space for new systems and equipment.

  • Handover & verification

    confirm as-built against as-designed.

  • Digital twin foundation

    the as-built layer your twin is built on digital twin.

Colored 3D laser-scan point cloud of oil and gas process piping and equipment

04 · why 3D Engineering

Survey-grade as-built, any structure or scale

EU-based

EU data jurisdiction, GDPR, NDA.

The right tool for the job

Terrestrial, mobile, drone and close-range scanning, combined for survey-grade accuracy.

Any structure & scale

Buildings, plants, industrial, heritage and infrastructure.

Fast turnaround

Efficient capture and processing.

05 · how we work

From scan to as-built deliverable

1

Technical scoping

structure, access, required deliverable and detail.

2

Capture

efficient, accurate laser scanning, interiors and exteriors.

3

Registration & QA

point cloud registered, cleaned and checked to survey tolerances.

4

As-built deliverable

2D drawings, 3D/CAD or BIM at your required LOD.

5

Handover

in your formats, ready for design, engineering or a digital twin.

06 · FAQ

As-built surveys — common questions

  • A precise record of a structure as it has actually been built — captured by 3D laser scanning as a millimetre-accurate point cloud and delivered as as-built drawings, 3D or BIM models.

  • As-designed is the original plan; as-built is what was actually constructed, including every on-site change. We document the as-built reality.

  • Terrestrial laser scanning captures geometry to a few millimetres. The registered point cloud and as-built model reflect the asset as it physically exists — including the brownfield modifications drawings usually miss.

  • Geometry to a few millimetres, reflecting the structure as it physically stands — including modifications the original drawings never captured.

  • Registered point clouds, as-built 2D drawings (plans, sections, elevations), as-built 3D/CAD models and BIM at your required LOD.

  • Yes — we can work from your point cloud, or capture a new one.

  • EU jurisdiction, GDPR and NDA. Most projects are confidential — anonymised references on request.

Talk to our engineering team about your project

Tell us what you need to capture. We'll discuss scope, access and the right deliverable — engineer to engineer.No sales calls.

Mon - Fri:  09 AM - 6 PM

Incoming requests are reviewed daily, including weekends.