Gentrification comes in many forms. On the tiny island of Marthas Vineyard, where presidents and celebrities vacation, trophy homes threaten to destroy the islands unique character. Twelve years in the making, One Big Home follows one carpenters journey to understand the trend toward giant houses. When he feels complicit in wrecking the place he calls home, he takes off his tool belt and picks up a camera. Bumping up against angry homeowners and builders who look the other way, he works with his community and attempts to pass a new bylaw to limit house size.