For many baby boomers, "retirement" is just a long way to spell "the end." This wasn't the case for Mike and Fiona Goodchild, a pair of retiring Scottish UCSB professors who wanted a home that would easily adapt to meet their changing needs while helping future generations meet theirs. After purchasing a tear-down house next to their adult daughter's home and family in 2010, the Goodchilds connected with a pair of architects who shared their sensibility. The resulting Burke-Gilman Bike Trail house, named for the Seattle recreational footpath which it overlooks, is the playful embodiment of sustainability. From the adaptable office space upstairs to the back entry that has been designed for conversion into a wheelchair path, the house is as changeable as it is comfortable.