Why Are As Built Drawings Important?

As-built drawings are an essential tool for all stakeholders in a renovation or expansion project. They are also important for maintenance & management scenarios as well. These drawings provide a detailed record of what was actually constructed, and provide details of systems found within buildings & structures.

Providing Up to Date Documentation

First and foremost, as-built drawings are important because they provide accurate and up-to-date documentation of the construction or engineering project. This documentation is essential for future reference and can help to avoid costly mistakes or errors in the design process. When design professionals have access to as-built drawings, they can make informed decisions about future modifications or renovations to the project. Even if a property owner has original design or construction drawings, as built drawings represent the final product VS design & constructions docs that represent what was intended to build.


As-built drawings also play a critical role in compliance with building codes and regulations. These drawings provide evidence that the project was constructed according to approved plans and specifications, and can be used to demonstrate compliance with local and national building codes. This is particularly important for design professionals who are responsible for overseeing large-scale construction projects where compliance with building codes and regulations is critical.

Often plan checkers who review applications for remodeling or new construction permits, request to see the existing layout (as built) of a property to determine how the new addition or construction flows with existing and to ensure that the existing structure complies as well.

If a plan checker deems existing building layouts non-compliant, they could enforce corrections to existing building to comply with current building codes or Zoning laws & regulations.

This could sound bad news to owners & property managers and in some cases, can actually doom a project scope of work if the cost of correcting existing conditions exceeds or beyond the budget of the client.

Safety Awareness

In addition to compliance, as-built drawings can also help to identify potential safety hazards or issues with the construction or engineering project. By providing a detailed record of the project, design professionals can identify any areas that may require additional attention or repairs. This can help to prevent accidents and ensure that the project remains safe and functional over time.

Streamlined Project Management

As-built drawings are also important for project management and communication. When design professionals have access to accurate and up-to-date documentation, they can communicate more effectively with contractors, engineers, and other stakeholders involved in the project. This can help to ensure that everyone is on the same page and that the project is completed on time and within budget.

Client Satisfaction

In high end projects, developer or builder often creates a new set of as built drawings to ensure that the project is completed to the satisfaction of the client or owner. By providing accurate and up-to-date documentation of the project, design professionals can ensure that the final product meets the expectations of the client or owner. This can help to build trust and credibility with clients, which is essential for future business.

Check out the following resources to learn more:

Who Creates As Built Drawings