When I studed plans I appreciated architecture and technical details of building (as roof and fasade). It was little tricky to model this project only from image blueprints. So I made a research on google for more images. After I finished basic modelling of buildings I started think what will be the best camera postions. I wanted to show the arch ceiling (roof). So I decided when my camera will be I created more details of building (only for camera angle to save time) such as windows, facade and terrain. Then I placed camera to desired location, where I could show arch celling.