If that was here in SA, they would be doing that to find where you live.
Then case the place for about a week to determine your usual movements.
Then they time you....and break in and jip all your shit.
I personally knew some dodgey fucker whose MO is just that. Checks the classifieds...and weeds out some unsuspecting fool. Goes to 'have a look' and then steals the stuff.
Don;t allow it!!