The company analysed nearly 2.4 million wish lists created in the UK to find the most sought-after properties.
The charming one-bedroom property — which costs £100/night to rent — is split across two floors with a kitchen/living area and bedroom. Suitable for two guests, the rental offers idyllic views of the surrounding countryside and coast.
Its host, Jonathan Melville-Smith, a retired landscape designer and contractor, hasn't lived in the treehouse himself, but he said he has spent "the occasional night" there.
"For me, my earliest childhood memories are about building dens, followed by the magical story of Swiss Family Robinson. From that moment on I wanted to build a tree house," Melville-Smith told Business Insider over email. "It seems to me that I have always wanted to live in a tree house and spend magical moments in one."
Take a look inside the upscale treehouse below.
Suspended over 6-feet above the ground, the treehouse is accessible via a wooden staircase. A proper treehouse "needs to be in a tree, supported by the tree," according to Melville-Smith. "Not on stakes, or posts in the ground next to the tree."
Here's the view upon entering the treehouse. It's a cosy space, with homely touches like fairy lights and a rug. There's also a tree bark running right through the structure in case you forget you're staying in a treehouse.
The living room is compact but the host has made clever use of the space to make it feel more spacious. For example, the tree twigs lining the walls double as a magazine rack.
The kitchen is stocked with pots, pans, crockery, a kettle, and a small cold box for storing cool food, as well as a stove and grill. Thankfully, the treehouse is fully insulated with double-glazed windows and heating so you won't need to rely on cooking to warm up the space.
On the second floor, there's a "mezzanine" bed with a tiny window overlooking the countryside. Bedsheets and towels are all provided.
A small bathroom with a composting toilet is tucked away behind a curtain. Guests can also use a wash basin, while a separate shared shower is located outside of the treehouse.
Situated in the remote Cornish countryside, the treehouse is a romantic place to stay, with gorgeous rural views overlooking Falmouth Bay and the fields of Tregaminion. "On windy days it's like being in a boat gently rocking in the branches," Melville-Smith said.
Related: Check out some of the craziest and most beautiful Airbnbs for rent:
Airbnb, various places for rent, craziest/most beautiful Airbnbs
British Airbnb users want to stay in this treehouse in Cornwall more than anywhere else in the world -- here's what it looks like inside
A view shows an underwater room structure installed in the Aquarium of Paris, France, March 14, 2016. Airbnb and the Aquarium of Paris offer contest winners a night underwater sleeping with sharks and create a research platform for "misunderstood" shark species. Picture taken March 14, 2016. REUTERS/Charles Platiau
Gayle Wohlgemuth Atias stands at the entrance to her rental property listed on Airbnb in the Jewish West Bank settlement of Dolev February 23, 2016. REUTERS/Baz Ratner
TORONTO, ON - JANUARY 15: A guest room's plaster work dominates this second floor bedroom inside the Darling Mansion. The residence is a west-end curiosity, an opulent old house on Dovercourt that is now owned by Tanya Grossi. The house can be rented out for events, and you can stay in 'themed rooms' found on Airbnb.com. (Bernard Weil/Toronto Star via Getty Images)
TORONTO, ON - JANUARY 15: A bedroom inside the Darling Mansion. The residence is a west-end curiosity, an opulent old house on Dovercourt that is now owned by Tanya Grossi. The house can be rented out for events, and you can stay in 'themed rooms' found on Airbnb.com. (Bernard Weil/Toronto Star via Getty Images)
TORONTO, ON - JANUARY 15: One of the main living areas inside the Darling Mansion. The residence is a west-end curiosity, an opulent old house on Dovercourt that is now owned by Tanya Grossi. The house can be rented out for events, and you can stay in 'themed rooms' found on Airbnb.com. January 15, 2016. (Bernard Weil/Toronto Star via Getty Images)
In this March 10, 2016 photo, Baba Ken Amen, an artist and vegan caterer, poses for a photo at his home in Pontchartrain Park in New Orleans. He rents out his art-filled home, which he advertises as the "Pontchartrain Park Paradise" as a short-term rental. In New Orleans, the short-term rental phenomenon through websites like Airbnb is a new source of friction but also of economic hope 10 years after Hurricane Katrina. (AP Photo/Cain Burdeau)
In this Monday, Aug. 3, 2015, photo, Airbnb renters Michael and Tabitha Akins, and their dog Bagheera, check their accommodations in a decommissioned 2002 Honda Odyssey yellow taxi, in the Queens borough of New York. While parked vehicles make up only a fraction of the thousands of Airbnb listings in New York City, they provide an option for adventurous, budget-minded visitors seeking a place for far less than the $200-and-up most hotels charge. (AP Photo/Richard Drew)
This May 13, 2015 photo shows Majel Reyes in the apartment she renovated to rent to visitors via Airbnb and other sites, in Havana, Cuba. The renovation, she said, cost three times the original estimate and took seven months, instead of the 45 days the contractor promised. âI used seven years of savings,â she said. âIt will take me a few years to see the investment back but itâs worth it. It will be a steady income in the future.â (AP Photo/Beth J. Harpaz)
In this Monday, May 19, 2014 photo, Airbnb guests Camille Smithwick and James Green from Manchester, U.K., pose for photos at an Airbnb property owned by ceramist Jonathan Entler in the Echo Park area of Los Angeles. Deeper savings can be had through sites such as Airbnb that arrange for people to rent out rooms, apartments or even couches. The number of listed accommodations has soared since Airbnbâs founding in 2008 to 550,000 _ not far below Hiltonâs 685,000 rooms worldwide. (AP Photo/Damian Dovarganes)
PORTLAND, ME - OCTOBER 8: The view from a window in the the home of Gary Wagner who rents part of his home out on Airbnb Thursday, October 8, 2015. (Photo by Shawn Patrick Ouellette/Portland Press Herald via Getty Images)