What is an "as-built" drawing?

An "as-built" drawing is a critical document in the construction process that accurately represents the completed construction project. It reflects all changes that were made during the construction process, capturing the final dimensions, design, and specifications as they were actually constructed, rather than how they were initially planned or designed. This documentation can include modifications made due to changes in materials, site conditions, or other unforeseen circumstances encountered during the construction.

These drawings are valuable for future reference, maintenance, and renovations, as they provide a detailed understanding of the building's layout and systems as they exist at the end of construction. They serve as an essential tool for owners, contractors, and various professionals who may work on the building in the future, ensuring that everyone has an accurate account of the project as it stands upon completion.