I see there are some workmen on the site . When is the building work due to start ?   Well , it'll take three weeks to demolish the old building and clear away the debris . We should be ready to start the construction work in week 23 .   How long will the sub contractors be on site ?   About ten weeks in total if everything goes according to plan .   I'm sure it will . So , we should be able to start moving the machinery in during week 34 . I'll confirm that date with our suppliers . 