Of course some Airbnb hosts give up their entire place. There's a big button to limit your search to just those properties. Airbnb shows 667 out of 918 rental

Of course some Airbnb hosts give up their entire place. There's a big button to limit your search to just those properties. Airbnb shows 667 out of 918 rentals in Santa Monica are for the entire place, i.e. no host present. The vast majority of rentals there won't have an owner present.