The Bungalow Architech A bungalow is commonly known as a single-storey detached house, although some may have a second level thanks to a loft conversion. However, in order to be a true bungalow, the loft conversion must maintain a sloping roof, into which dormer windows are placed. These are commonly referred to as Chalet Bungalows..A bungalow is commonly known as a single-storey detached house, although some may have a second level thanks to a loft conversion. However, in order to be a true bungalow, the loft conversion must maintain a sloping roof, into which dormer windows are placed. These are commonly referred to as Chalet Bungalows.