A nice piece on Yay Cork about Irish Shepherd’s Huts run by Mark and Tanya Rodgers and their potential use as tiny homes. Here's what they say about the largest model, the Liffey:
"A minimum of 16 or 18 feet by 7 feet 6 inches. The Liffey is designed as an alternative to rooms within a house for Bed & Breakfasts or as additional accommodation for glamping holidaymakers. Cosy yet practical, it boasts full insulation and oak flooring, space for a double bed, en-suite bathroom and kitchen facilities, under floor heating or a wood burning stove."