We stayed at the treehouse at North Hill Farm in Chorleywood. The house is literally that, a tree house suspended one storey up and accessed by a somewhat irregular set of stairs and a cable supended walkway. The house itself is small and cosy but well designed with everything to hand. It looks out over open farmland with horses, birds and rabbits. It is a most relaxing and comfortable place to be yet is a brief drive or 20 minute walk and 40 minute tube ride from the middle of London. It is just a few minutes off the M25 so very handy for heathrow and the other motorways. Breakfast (continental) is brought up in a basket by your hosts the Clarks. The shower is outdoors but private. We found it a terrific alternative to a traditional bed and breakfast, but we still had access to amenities such as wifi and ironing in the main part of the farm. Our hosts were very helpful and flexible, allowing us a late checkout, and gave us useful tips on the local area.