One common story I've seen repeatedly in Tunisia, involves poor planning and cost forecasting. Basically, a lot of people think that once the walls and roof a

One common story I've seen repeatedly in Tunisia, involves poor planning and cost forecasting. Basically, a lot of people think that once the walls and roof are set they'd be 90% done. In reality, the "finishing" phase can cost the same as the "base" costs (Or more depending on what quality-standard you're aiming for).