When “As-Built” Drawings Aren’t Actually As-Built
By Ben Ward, at Wardraw CAD Servives
Working as a CAD Manager on government sites, I’ve seen a recurring issue that never seems to go away — as-built drawings that simply aren’t as-built.
These drawings are meant to represent the final, constructed condition of a facility — the record you can trust for maintenance, compliance, and future development. But too often, they’re nothing more than the original proposal drawings rebadged as “as-built.”
Why As-Built Drawings Fall Short
In many government and commercial projects, the problem often starts with time and budget pressures. Project managers are expected to deliver on schedule and within cost, and by the time construction wraps up, producing true as-built documentation becomes a low priority.
In other cases, companies with their own in-house CAD or BIM teams assume those teams will “pick up” the modifications later — even though those teams may not have access to accurate site data or the full picture of what was built.
And while many design firms include a cost for updating the BIM model or producing verified as-builts, that cost is often treated as an optional extra — something to be cut to save money at the end of the project. The result? Drawings that don’t reflect reality, and facilities that inherit incomplete or misleading documentation.
The Real-World Consequences
When as-built drawings don’t match what’s physically on site, the consequences are costly and long-lasting:
Facility managers can’t rely on the drawings for maintenance or compliance.
Engineers and designers face major delays and added costs during refurbishments.
Owners and operators are often forced to commission full resurveys just to understand their own assets.
I’ve seen this pattern again and again — not just on government sites but across different sectors. It’s a systemic issue rooted in how we prioritize project closeout.
Why a Full Resurvey Is Often Still Needed
Even with modern digital workflows, most facilities still need a complete resurvey before meaningful development can take place.
That’s because too many “as-built” records are based on guesswork or red-marked PDFs that never made it back into an accurate CAD or BIM environment. For facility development — especially in complex government infrastructure — accurate spatial and services data is critical. Without it, every project starts with uncertainty.
Fixing the Problem
At Wardraw, we’re already encountering these challenges in our first few jobs — and making it a top priority to correct them. Our goal is to help organisations take full control of their documentation and re-establish confidence in their data.
Here’s how we believe the industry can move forward:
Integrate As-Builts Into the Project Workflow
As-built documentation shouldn’t be an afterthought. It should evolve throughout the construction process, with updates logged and verified at key milestones.Make Verification a Requirement
Field validation — through surveys, or digital twin comparisons — must become standard practice before handover.Empower CAD and BIM Teams Early
CAD and BIM managers need to be part of the project lifecycle from day one, not just at closeout. We understand data integrity and can flag discrepancies early. Listen to what they are saying. It maybe sound like they are demanding you spend more money, but in the long run it’s going to save you.Protect the Budget for Accuracy
The cost to properly update the BIM model or as-built drawings isn’t an “extra” — it’s a safeguard. Cutting it now only pushes bigger costs onto the client later.Adopt a Culture of Accountability
The industry needs to view accurate as-builts as a shared responsibility. Every stakeholder, from the design team to the contractor, should understand the long-term value of correct documentation.
Closing Thought
Whether on government sites or commercial facilities, the message is clear: if your as-built drawings don’t match reality, you don’t truly know your asset.
At Wardraw, we’re committed to helping clients fix that — creating reliable, verified records that form the backbone of sustainable facility management.
As-built drawings should tell the truth. Anything less isn’t just inaccurate — it’s a liability.
