The basic definition of as-built documentation can be derived from its name with relative ease – it is a set of documents (either a drawing or a 3D data set) showcasing the building in question exactly how it was built. As-built documentation includes all of the current dimensions of the project’s results, from the facade to various doors, windows, cables, pipes, and more. It should also include every change made during construction without planning beforehand.
There is one main reason as-built documentation needs to exist in the first place, and it is self-explanatory. The issue here is that there is always a difference between the original project’s intent and the finished product since these projects are so massive in scale and complex. Many issues could lead to this problem – from scheduling problems and budget changes to unpredictable happenings that affect the construction process in one way or another.