Building Services International (BSI) is a dynamic and highly experienced residential drafting firm offering 3D architectural rendering, estimating, and scheduling services for residential builders worldwide. Our business processes are streamlined through an international network of offices throughout Australia, South East Asia, and North America. At BSI, more than 130 qualified professional drafters, architects and civil engineers are fully versed in all regional building codes. From sketches, site plans, and scheduling, to photo-realistic 3D rendering, our team's efficiency and attention to detail means that you enjoy total peace of mind - no matter how large or small the job.