As shown in the picture, the door is on the left and opposite is a window. Please tell me where to place the shower room and washbasin.

There seems to be no choice here: the toilet hole cannot be moved, otherwise the ground will have to be raised, which is troublesome; the bathroom cannot be close to the window, and the concealment is not good, so the hand basin can only be used in the upper right corner Sewer pipes. Since the distance from the window to the top is relatively small, and the Feng Shui mirror is not good for the door, you can choose a long and narrow washbasin cabinet such as 900x400 (the smallest is 350) and place it along the upper wall in the picture. Personal opinions are for reference only, I hope it can help you.