The time had come to demolish our first roundhouse experiment to pave the way for the Mark II. The Mark I was based on the 2014 excavation evidence from Glastonbury Lake Village, which showed how slight the original wall construction was. The Mark I design failed to sufficiently connect the walls to the doorway, resulting in a weakness in the ‘basket ring’ of the walls. The combination roof design, where vertical elements from the wall continued into the roof, was fairly successful but requires some modification. The inbuilt shuttered windows also worked well but the Mark II will use single shutters instead of doubles, to reduce the break in the wattling of the walls which they cause, and we may set them horizontally, letterbox style, rather then vertically, for the same reason. At the Lake Village the roundhouses were replaced about every 10 years and it only took half a day to remove all trace of the Mark I, although the process was easier because the walls had not been daubed. The intention is to take the new version all the way through to completion and design it to last for a decade. As all the archaeological evidence stops at the contemporary ground level, it has been a useful exercise experimenting with new approaches. The porch was left standing as that could be reused for Mark II.