Non-conforming, single-lot opportunities come about in two ways: You look really hard to find them, or they just fall into your lap. In my case, one came to my attention by luck, but it illustrates perfectly how to deal with an unusual lot and even how to recognize one that is easily overlooked. The phone call came out of the blue one summer night. "Would you be interested in a building lot in your area that I would like to sell?" It was a small (11,000 square feet), non-conforming but legal building lot in an established neighborhood of larger lots. An absentee, retired builder was trying to sell it. You bet I was interested. I knew of the