@Abbie0,
a couple of thIngs my husband and I took into consideration when we built two cabins for holiday rental, back in 2004. We lived in North Queensland, Australia.
a) we had enough land to be able to set the cabins twelve metres apart
b) the bedrooms were placed on the far side of each cabin
c) the kitchen window of one cabin looked across the twelve metres to the kitchen window of the other cabin (blinds for privacy if required) and we planted trees and shrubs in between
d) each cabin had a nice deck looking into bushland, not looking over at each other. Also a privacy wall on the side of one deck ensured visual privacy
e) gardens, trees and shrubs gave the feeling to guests that 'their' cabin was the only one, even though they shared the driveway in.
Separate groups/families often booked separate cabins. Also, families frequently booked both cabins and loved it so much they would book their next getaway as they checked out from this one 🙂
We enjoyed that business until 2008 when we sold and retired - before Airbnb began. The past couple of years we are again hosting, now with Airbnb, a guest suite in the ground floor of our home.
Thanks for reading, and wishing you all the best with your project.
Lyn 🙂