Every construction project needs to take into consideration its surrounding context specifically during the initial feasibility study. Larger developments in particular can potentially cause overshadowing of the neighbouring properties. This is usually when a Rights to Light surveyor needs to be consulted to complete a report on exactly which properties will be affected and by how much.
Usually the Rights to Light surveyor prefers to work from a digital 3D solid geometry model of the area in question. We have found that the most efficient and accurate method of producing the 3D model is by first Laser scanning the façades of the buildings in question. Then use this to produce the model in the required format. We prefer to model this directly in Revit using massing, walls, windows and doors etc. then export to AutoCAD as Solids if required.
These models can be produced to varying levels of details depending on the nature of the project. This can range from simple mass modelling right through to including elements such as building crowning, Fire escape stairs and even glazing bars, mullions and transoms along with the standard window/door openings and walls. As we are capable of producing extremely high detailed models, no level of detail is out of the question for a Rights to Light Model.