German phrase
In welcher Straße ist ~?
Meaning
Which street is ___ on?
When to use it
Ask which street it is on. This is a normal, polite question.
Example dialogue
In welcher Straße ist die Bäckerei?
Which street is the bakery on?
Sie ist in der Lindenstraße, gleich um die Ecke.
It is on Linden Street, just around the corner.