Any home improvement project of this scale is bound to be messy!
Here are some quick steps on how to prepare your home:
Put a tarp or sheeting to passageways to the construction area to reduce the spread of dust throughout your home
Cover the flooring used frequently by the work crew
Move furniture and other items to rooms that are not affected by the construction
One more thing to have in mind: a basement addition will mean excavation, as well as interference with your yard’s landscape. That’s why it’s better to temporarily relocate any plants or objects to avoid unwanted losses.