In every construction project, it is normal to have to modify or adapt elements of the original design. These adjustments are common during construction and must be addressed skillfully to ensure that the project is completed as planned. As-built drawings are used to help accurately document the changes made.

C2B Platform allows the verification of As-Built models, so you can use its technology to perform checks and verifications of the BIM model and also confirm that no elements are omitted during the modeling of the project.

What are as built plans?

As-built refers to the precise documentation and recording of modifications and alterations carried out during the construction of a project. It provides an updated and accurate representation of the final state of a built structure.

As construction progresses, as-built drawings are created to document the current status of the project and any deviations or changes made in relation to the original plans and designs.

These drawings should allow a comparison between the initial project design and the actual implementation, clearly illustrating any modifications that have been made.

Furthermore, it is crucial for the as-built drawings to be accompanied by comprehensive descriptions and calculations necessary for the modifications to the original project, as well as the corresponding approvals that authorized the changes to be implemented.

Benefits of as built plans

The importance of as-built drawings lies in providing accurate and up-to-date construction documentation, which allows the professionals involved to better understand and manage the project at later stages. Some of the benefits they provide are: 

  • Error management: By using BIM validation software, IFC data is effectively managed and controlled at each information exchange, generating reports that ensure model quality and prevent errors.
  • Anomaly detection: By identifying errors early, the costs associated with their resolution are prevented from becoming excessive by addressing irregularities at an early stage of the project.
  • Quality management: Promotes higher construction quality by identifying and resolving defects prior to final project delivery, ensuring an optimal result.
  • Compliance control: By comparing real models with virtual ones, compliance is verified and documentation is updated in case of discrepancies, ensuring that everything is consistent and complies with established standards.

How to create an as-built plan

As-built plans are created by identifying and documenting any changes, adaptations, and additions made to the original project plans.

During this process, the “red line” code is followed, where red lines are used as markers to indicate added elements, while annotations are used to explain the modifications. Additionally, the design team may include other relevant records they consider necessary.

To provide visual reference of the construction changes, photographs can also be integrated into the as-built drawings. This practice proves highly convenient and efficient in clearly illustrating the modifications made during the construction stages.

It is crucial for these final plans to be detailed, accurate, and specific technical documents. This is essential to ensure that any changes in project specifications can be clearly understood in the future, whether by other professionals like architects or engineers, or by the users of the structure or facility.

As-built documentation: why is it necessary?

Upon project completion, it is rare for the finished work to precisely match the original design due to various factors. Changes in circumstances, budgetary constraints, evaluation errors, and unforeseen setbacks during construction often necessitate a review and modification of the work.

Even with a smooth construction process and the implementation of advanced methodologies like BIM or VDC, there may still be slight deviations between the final building and the original design.

Therefore, it is crucial to update the design and related information to accurately reflect the actual conditions and create a digital twin of the building that matches the built reality.

In summary, as-built documentation serves several purposes:

  • Demonstrating compliance with contractual conditions for what has been built.
  • Providing an up-to-date information model that accurately represents the current state of construction.
  • Establishing a reliable foundation for future maintenance work.
  • Ensuring the interests of clients and contractors are safeguarded and protected.
  • Equipping future professionals involved with comprehensive and updated information about the construction.

As-built reports

As-built reports are documentation or plans that capture the modifications and changes implemented during the construction or execution phase of a project. These reports provide an accurate representation of how a structure or system was actually built or installed in comparison to the original plans and designs.

They typically include notations, drawings, and detailed descriptions that accurately depict the real conditions encountered during construction. This may involve precise measurements, adjustments in element placement, or any other relevant changes.

CHECKTOBUILD offers an as-built reporting service to monitor progress and measurements undertaken. This service allows for precise control over the percentage of completion and enables tracking of progress for each element, class, and model. It is a fast and efficient process, as the results are automatically generated with each analysis, eliminating the need for manual post-processing.

The company delivers customized PDF reports tailored to tolerance and as-built analysis in concrete construction, floor flatness, and MEP (Mechanical, Electrical, and Plumbing) installations within 24/48 hours.

In summary, as-built reports serve as accurate, up-to-date, and valuable documentation for companies like CHECKTOBUILD. They capture the changes made throughout the construction process and are utilized to ensure the precision and quality of the completed work.