Where did the narrator first move in Cousin Phillis by Elizabeth Gaskell?

From the text:

I do not think I ever was so satisfied and proud in my life as when, at seventeen, I sate down in a little three-cornered room above a pastry-cook’s shop in the county town of Eltham. My father had left me that afternoon, after delivering himself of a few plain precepts, strongly expressed, for my guidance in the new course of life on which I was entering.