Brownfield plant revamps: why an accurate as-built comes first
A brownfield revamp designed against the original drawings, instead of the plant as it actually stands, inherits every undocumented change made since construction. Starting from a survey-grade as-built record removes that risk before design work begins — not after clashes appear on site.
Why "as-designed" drifts from reality
Every brownfield facility accumulates change: re-routed piping, replaced equipment, structural modifications, tie-ins added during earlier projects. None of it is guaranteed to make it back into the original drawing set. Over years, the gap between "as-designed" and "as-built" widens — quietly, and usually undocumented until someone designs against it.
What outdated drawings cost a revamp
Designing tie-ins, routing and structural modifications against drawings that no longer match the plant means clashes are discovered on site — where they're most expensive to fix. Rework, schedule slip and safety risk during construction are the direct cost; the indirect cost is an engineering team spending time resolving problems an accurate starting model would have shown before design began.
What an accurate as-built basis includes
- A registered, QA'd point cloud of the affected area — the objective, measured record
- As-built 3D/CAD or BIM at a level of detail matched to the design work — see how LOD is chosen
- Piping and structural as-built, so new tie-ins and supports can be checked for clashes before construction
- Delivery in the formats your design team already works in
See our plant scanning overview for how capture and modelling fit together, and Industrial & Power for the full service scope.
Where as-built fits in the revamp sequence
The most effective point to capture an as-built record is before conceptual design starts — not after a clash is found during detailed engineering or construction. That sequencing turns the as-built from a reactive fix into the foundation the whole revamp is designed against.
FAQ
How much does an outdated as-built typically cost a revamp?
It varies by project, but rework from undocumented clashes discovered on site is consistently more expensive than resolving the same clash on an accurate model before construction.
Can you scan just the affected area, not the whole plant?
Yes — scope is matched to your revamp area, though capturing a wider buffer zone is often useful for tie-ins and access routes.
What level of detail do we need for a revamp model?
It depends on the design work — clash-checking and tie-in design typically need object-level detail on piping and structures; broader layout studies need less. We scope this with you upfront.
Can you work from a point cloud we already have?
Yes — we can model and deliver from your existing scan, or capture a new one.
Starting a brownfield revamp?
Talk to our engineering team about scoping an accurate as-built basis — a technical discussion, no sales calls.
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Address: Duntes iela 6-606, Rīga, LV-1035Hours: Mon–Fri 09–18
Industries
Get in touch
+37127888619 ue.gnireenigne-D3%40ofni
Address: Duntes iela 6-606, Rīga, LV-1035Hours: Mon–Fri 09–18