As-Built Drawings Cost: What Drives the Price
Quick answer: As-built drawing cost is driven mainly by building size, how much of the existing condition needs to be field-verified versus pulled from existing plans, and the level of detail required, structural and floor plan only versus full MEP documentation. A small residential remeasure can run a few hundred dollars, while full MEP as-builts on a commercial building can run into the thousands, so the honest answer is always a range tied to scope.
As-built drawing pricing varies more than most other rendering and drafting deliverables because the starting condition is different on every project. A building with accurate existing plans on file needs far less field work than one where the drawings are missing, outdated, or do not match what was actually built.
Building size and complexity set the baseline
Square footage is the first cost driver, but layout complexity matters just as much. An open, simple floor plan measures faster than a building with many small rooms, irregular walls, or multiple additions built at different times that never got documented consistently.
Field verification versus working from existing plans
If usable existing drawings exist and only need to be checked and corrected against the built condition, the work is largely verification. If no reliable drawings exist, the team has to fully re-measure the building on site, which takes significantly more time and drives cost up.
Level of detail: structural only versus full MEP
Basic as-builts covering walls, doors, and windows cost less than as-builts that also document mechanical, electrical, and plumbing systems in detail. A renovation or addition project usually needs the fuller MEP-level documentation, while a simple floor plan update for marketing or leasing may only need the basic layer.
Questions that affect your quote
- Do usable existing drawings already exist, or does the building need a full on-site re-measure?
- Does the project need MEP documentation, or just walls, doors, and windows?
- Is the building a single simple layout, or does it have additions and irregular areas built at different times?
See our 3D rendering services for how as-built documentation fits into a broader renovation or addition project.
To see how this applies in practice, take a look at our 3D rendering cost guide.