How Much Can You Make Up About Locations in a Real Place?

Three copies of the book will be given away. Just go to writerscenter.com.au slash win for your chance to win. Entries close on Monday the 16th of January, 2023. But don't worry, if you're at that URL in the future, there'll be some other fantastic competition for you to enter and potentially win. Now back to the questions. Why or when should you invent locations in a real place? And how much can you make up about the setting without annoying the readers?