edit the existing render without changing architecture geometry or composition material change only this area replace the stucco on the ground floor facade with exposed concrete apply this change only to the area where the stucco currently exists do not modify the upper floor or any brick surfaces the brick must remain unchanged exposed concrete specification use architectural exposed concrete with visible formwork marks include panel joints and subtle tie holes properly aligned the panel modulation should be medium to large scale not small panels not dense grid the concrete should be light gray with natural variation smooth but slightly textured with realistic imperfections windows keep windows exactly the same but integrated into the concrete surface no decorative moldings or colored borders important do not modify roof brick pavement doors or lighting only replace the stucco material in the ground floor area photorealistic clean realistic architectural material
