Terrestrial laser scanning (TLS) is a ground-level surveying technique that creates detailed 3D models of buildings or landscapes using laser technology. It’s useful for preserving historic structures, planning renovations, and monitoring the stability of buildings and terrain. TLS helps determine if a structure is moving, tilting or changing in shape, and is particularly valuable when existing plans are outdated or missing. It’s also used to monitor nearby buildings during construction to prevent damage to them. With its ability to quickly and accurately capture the details of complex shapes and spaces, TLS is becoming a popular choice for surveying in construction and preservation projects.