Change of use from retail (Use Class A1) to artists' studios, art workshop space, cafe, art gallery and arts/crafts materials retail space (Mixed Use - Use Classes D1, A1 and A3) including installation of a new entrance, external staircase and replacement windows - Non-material amendment to planning permission 19/00982/FUL to amend the entrance doors. first floor door, lowering of window sills and bricking up of windows