Here is an industrial building I created from UAV imagery. This building was also surveyed by a Professional Land Surveyor (PLS). The model seen here is a 3D mesh from a point cloud of over 30 million points created from several hundred aerial images from a drone. This model can be annotated as I have provided examples of for asset inventories, inspections, or precision mapping (if you have a surveyor involved). Based on control checkpoints I was able to achieve sub-inch geospatial accuracy. Depending on your needs this could be a much more cost effective solution than using LiDAR. Please reach out to me with any inquiries.