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As-built Checklist: What is it? & importance of it in BIM architecture

Comparing the designs and the actual construction, with any project, this checklist concept may be a huge benefit that makes asset management easier, especially during the maintenance stage.

The as-built drawings should always be updated and accurate to reflect reality. This is unquestionably an effective technique to save chronological information about the asset's building phase.

A good BIM management platform that enables you to handle 3D models, data, information, and open BIM procedures is another crucial factor.

As-build Checklist

Checklists for as-built drawings help to maintain the as-built drawings and also provide helpful information that can be used to verify that the drawings correspond to the actual asset.

In light of the actual conditions, the complexities of the construction site, the budget changes, and the varieties in progress, it has become necessary to rethink the initial idea of the project and, consequently, redraw the project drawings to reflect the new conditions.

Despite the most fluid construction process and the commitment to a more advanced BIM/VDC methodology, there is no guarantee that the actual building built will correspond exactly with the drawings prepared for the project.

As-built drawings

A set of as-built drawings describe in detail the condition of a building as it appeared at the end of the work or after a series of modifications have been made after the work was completed.

There is no longer a representation of the original project in the model; rather, it is a summary of the measurements, geometrical characteristics, and updated information that has been gathered from the asset.

Simply put, it is a situation that is at the end of a construction process that includes all of the changes made during that process.

Continual updates are added as work progresses, and they are subsequently supplied to the client at the conclusion of the construction process. They indicate the precise positions of all pieces, enabling you to reconstruct a full picture of the structure as it is today in its genuine operational context.


Working on as-built documentation during the construction process and updating it when modifications are made are effective practices. By doing this, you can make sure that the virtual information model corresponds to the actual one and that any contractual obligations are honored.

Typically, it is the contractor's responsibility to provide and provide the client with the as-built documentation after the work has been completed. The documents must be accepted and officially approved by the responsible professional before being delivered to the client.


During the construction process, an as-built drawing has the primary function of recording any deviations obtained from the original design that occur during the course of the construction process.

It begins with the geometric relief of the building, and the as-built drawings are then produced and delivered to the client at the end of the process.

Factors to be included in the As-built drawings

There are no small changes that shouldn't be noted on the as-built drawings, but the following are absolutely essential:-

1. A clear description of all modifications to the materials used, the positions of the elements, the dimensions, the geometries, etc.;
2. Accurate positioning of all utilities and systems, including thorough reports and materials for each;
3. all dates on which the modifications were made; all unforeseen difficulties and problems, along with the solutions employed to address them;
4. and all modifications made to already complete work.
5. The as-built drawings should always contain as much information as feasible because even the tiniest changes could be crucial during the asset's management and maintenance stages.

The as-built drawings can also serve as the basis for the management and maintenance of the site as well as for any future upgrades that are planned.

As-built drawings facilitate the inspection, maintenance, and refurbishment of any assets because they provide all project participants with accurate and up-to-date information about the asset that is in their possession at any time.

Factors to be included in the As-built checklists

In addition to the type of work to which an as-built checklist refers, the following information must be included:-

1. Data about designers, builders, clients, and other relevant parties; basic building information;

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2. Current architectural drawings, including construction details, elevation views, sections, and plans;

3. draughts of unfinished works that serve as illustrations, as well as those that have been edited or added;

4. Sewage networks, connections, drains, etc.; drawings of the flooring and external arrangements; updated graphics relating to MEP systems by reporting the exact position of pipes, drains, electrical cables, generators, etc.

5. Structural graphical references show the exact position of the structural elements and their composition.

As-built Checklist: What is it? & importance of it in BIM architecture