So these two good friends and neighbors get divorced from their wives and end up building two houses on one lot, making them something like semi-roommates. From the story in the Wall Street Journal:

Now both divorced, the two friends still hang out with each other and their current girlfriends. But they are even closer neighbors: They live in nearly identical, 1,500-square-foot, three-story wood-and-glass contemporary houses, which they built on the same lot.

The tall, rectangular-shaped twin houses, each with three bedrooms and 2½ bathrooms, are separated by about 30 feet—close enough that the occupants can see into each other's windows. It's like a modern version of "The Odd Couple", says Corey Martin, who designed the project with architect Ben Kaiser of Portland-based PATH Architecture. "On some level, it's every guy's dream. They get their freedom but they're not doing it alone. There's built-in camaraderie."

The friends say their arrangement is working well. They have dinner a couple of nights a week. They share an Internet account. They still go skiing, camping, biking and hiking together. "I know when Ted is home, who is going in and out of his house, which lights are on, what he is up to," says Mr. Zehetbauer. "It's companionship. Other people come and go. The only constant is Roland," adds Mr. Wardlaw. They share the outdoor space and are currently planning a vegetable garden together.