Designed under Permitted Development, this project combines a single-storey rear extension with a loft conversion to transform the home, with the ground floor reconfigured into a spacious open-plan kitchen and dining area with a new home office, and the loft upgraded with a rear dormer to form a master bedroom with ensuite. The design responds closely to the client’s brief, incorporating their key requirements into a practical and cohesive layout, with an initial build cost estimated in the region of £90,000, subject to final design, specification, and contractor pricing.