Adding a basement to your home requires digging out the soil around the house. Overall, it’s a complicated and expensive construction process that requires the help of a structural engineer.

Adding a storey on top of the house or digging out a basement: What's the better way to carve out an extra guest room or two?

After two weekends of ditch-digging and diverting rainwater away from daughter No. 3's house, the hope is that her basement will be dry as a bone.