The Remodelling of an Existing Bungalow, Yeadon, Leeds The scheme proposes a contemporary style addition to an existing bungalow to provide modern open plan living at ground floor with a new first floor level for further bedrooms and a bathroom. It is proposed that the new extension will be built using SIPS to achieve a high level of insulation in a fast build time to reduce time and cost and disruption while on site. All to the highest standards.