Located within the prestigious Knightsbridge Conservation Area in Westminster, this mid-terrace property on a peaceful residential street had long suffered from inadequate natural light and unsympathetic previous alterations. Paul Cahillane Studio Ltd was appointed by the client to enhance the property's natural light and unlock its full potential. A series of thoughtful interventions were implemented, including lowering the basement floor, opening up the ground floor to create a more spacious and connected environment, and adding a double-pitched mansard roof extension. This addition provided access to the previously inaccessible top terrace, offering both functional and aesthetic improvements. The transformation of the house is striking, with the property now unrecognizable from its former state. It is poised to become a cherished family home for many years to come.