Aedas has won planning permission for this five-storey mixed-use scheme in central Bolton. The 8,500m 2 building, which gained full planning approval last week, will provide two floors of primary retail space with basement storage and modern office space above. While most existing on-site architecture faces the wrecking ball, Aedas plans to retain a 1932 four-storey building, known as Knowsley House, which is distinguished by its Portland stone facade. The entrance foyer is to be refurbished and an attic storey added at roof level to knit together old and new parts of the scheme. Retail elevations will feature a projecting glass bay at first-floor level, emphasising the main entrance. Upper fl oors will be silicone-jointed curtain walling. Commissioned by Gordon Moon Properties, the project is budgeted to cost £10 million and is scheduled for completion within 18 months.