Tom shows Kevin the progress of the new utility trench - a time-consuming and expensive undertaking that (with several thousand dollars in permit fees) has already eaten up $30,000 of the budget. Concrete cutting contractor Peter Dami is on site to make way for the final connections, using a diamond-plated coring drill to bore holes through the 10-inch foundation wall. Kevin finally meets the most important person on the job: Janet's mom Jaqueline Buckley, who will actually live in the cottage with her husband, Len. Richard takes Kevin to visit Norm at the New Yankee Workshop to see how the shop is heated and cooled - he's thinking of using some of the same solutions (radiant heat, baseboard, split system A/C) at the Concord cottage. Looking for an interior designer who knows how to work with small spaces, Kevin meets Tricia McDonagh in Boston's South End to see how her design firm made a 600-square-foot apartment feel more spacious and inviting. Inside the cottage, all four walls have