I am new to English language. I have seen many times when the word "in" is used to explain an area "at" is also used following it.
I am living in Tokyo at Koganey.
He is staying in Sydney at Camden.
I want to know that why it can not be written as:
I am living in Tokyo in Koganey.
Is there a rule to follow when writing like this?
I would be grateful if you could give a clear explanation about this.