I’ve found that UE4 is a great place to start piecing large scenes like this one together. Initially I built up the architecture of the mansion using Unreal’s brush geo. Once I was satisfied with the initial layout, I exported the static mesh models and rebuilt the building pieces at high detail. This project will be rendered in Maya so I modeled with subdivisions in mind.

The camera is based off an Alexa LF and estimated its position and focal length based off of the concept art. I found later that the concept’s perspective is a bit skewed from the real world so it is a bit looser of a match for now.