"She spent about $100,000 to add a cottage in her backyard in Berkeley in 2011, and has been renting it out for between $1,500 and $2,000 a month. It paid for i

"She spent about $100,000 to add a cottage in her backyard in Berkeley in 2011, and has been renting it out for between $1,500 and $2,000 a month. It paid for itself in under five years, she said." Why do they need to be relaxed if its already profitable to build one? I wonder what about building such a unit requires too much red tape. Too bad they don't go into it in the article.