Product designer Rebecca Sturrock has returned to her family home in Cornwall with her partner Gregory Kewish and a highly ambitious plan. Together they hope to transform a small, damp bungalow into a cutting-edge home to share with their twin three-year-old daughters - all for just £80,000. The design is radical - to reinforce the walls of the old property and add a new living space on top to take advantage of the views. This extra floor will be made entirely of thick wooden panels engineered in Germany and normally assembled by a crew of specialist installers. However, budget constraints mean the couple are determined to do it all themselves.