Doing a google add words campaign effective for your listing?

Doing a google add words campaign effective for your listing? Can you direct right to your listing. When I setup my campaign it asked if I had a website

for me you should put a website adress with only your property

You can put the adress on your listing but I am not sure it’s the best as clients will also look other place (I am not even sure if it’s possible).

We use Ad words for our listings- I have no idea how it works since the hubby is in charge of that. We do not have a separate website, just out Air listing.

someone said previously it only works if you have a website… ??? Im confused