Alongside the car park at Bolster Moor Farm Shop (Golcar, Nr, Huddersfield) stands The Love Shack. Made by a local man who makes treehouses, playhouses, and similar items, it has been made from local mill demolition materials and is fully insulated for all year use. Cost around £6,500, dependant on specification - every one is unique.
For the Archers fans amongst you - I thought of Lynda Snell's Shepherd's Hut (as built by Eddie Grundy) - but it doesn't have a chimney :-)
I refuse to mention the 1989 'hit' record of the same name by the B-52s :-(