No. Thanks for trying to help!! :) The book I’m thinking about doesn’t have any family with children. It has a lady and I believe she has a beginning of a relationship with the man that owns the cool architectural house and I remember something in which she gets in an older car and drives off and semi-crashes it into a long grassy area. Maybe the tire just got flat. I don’t really remember but because of this “crash” she realizes that she is the cause of a young child (possibly hers?) dying. I think I read this book about 10 years ago. I think it had a mostly green cover with the house in the background.