BIM and its use in Historic buildings

A photo collection of Curzon Street Station, showing the extent of the grade 1 listed building and its part in the HS2 development.

Some thoughts on the use of BIM and all the data contained in any modern 3D cad file and its use in the planning process, The use of the data to establish materials rather than notes, The interaction of the embeded data with external data sources, traffic , predestrian, weather