Diane Keaton, the Oscar-winning actress who passed away on October 11, 2025, at the age of 79, left behind a stunning real estate legacy—including the Sullivan Canyon dream home she called "The House That Pinterest Built." Imagine the love child of a Nancy Meyers set design and a really great Pinterest board, and you’ll come close to understanding Diane Keaton ’s Sullivan Canyon property. Known for her eye for design and her ability to transform neglected spaces, Keaton had a well-established pattern of buying, renovating, and selling properties throughout her career—making this home's permanence all the more significant.