3d model of a building

Information on the business: Property Development
Industry: Business
Design details: I require 3D coloured drawings of a set of old farm buildings which are to be renovated. I will provide 2D DWG CAD drawings and I require the supplier to work these up to 3D models with architecural details included and with special attention made to colour matching as these drawing will be submitted to the Local Authority for approval. RAL/BS colour numbers will be provided or sample of the products to be used could be posted to the designer as required. As part of this excercise I also require a 'roaming camera' video to provide the viewer with multiple views of the buildings. If required I can also provide photographs of the existing building to give the designer some extra levels of visualisation. All drawings/models/video will only need to show external elevations.
Target audience: Local Authority/Professional
Ideas for the visual style: CAD & video
Things to avoid: Artists - this needs to be factual!
Preferred colors: To be supplied
Urls to draw inspiration from: http://www.youtube.com/watch?v=kyz04v4PA2A
Extra notes: