What is the setting of Old Possum's Book of Practical Cats by T. S. Eliot?

The book is set during Eliot's time, in London. Eliot was an expatriate who went to school in London and never came back to the United States. His deep entrenchment in British society is evident from the many references to it in this book.

Most of the cats live in posh neighborhoods in London. They have gardens and large houses, which are filled with nice furniture and collectibles, such as a Ming vase. The setting is very comfortable in most of the poems.