A recent trend has emerged in Seattle’s single family neighborhoods: new houses, on undersized lots. The trend came about after developers discovered a loophole — or what some call an opportunity — to get exceptions for undersized lots established as separate building sites before 1957. Some of these new houses popped up in what neighbors assumed was just a backyard. Some of them are three stories high. Ross Reynolds talks with Montlake resident Erin Miller who hopes to put an end to this trend and breaks down the argument with Roger Valdez and Mark Hinshaw.