Her: I live near (location)
Her: I found a cool nature reserve the other day I didn’t even know was here hahaha
Her: Where abouts are you?

(Location) How far is that from you?
 The reason he asks how far his address is from her is because he wants the girl to look it up as this  suggests a good level of investment from her. It also adds to her level of comfort as, when you invite her over later in the interaction, she has already typed your address into her phone and knows where you live so it reduces the likelihood that she will flake.