Hello! The traditional residence in China is built according to the standard of three rooms and five halls, with a hall in the middle and bedrooms around it. So the studio is strange. If you don't consider this traditional system, there is no harm. (Don't listen to Feng Shui) Just consider that it can't be directly connected with the foundation, wall and roof of the original house, and there should be settlement joints in the middle. (expansion joint)
You must pay attention to one thing: even if you build a new house in your own yard in the countryside, you need approval! Otherwise, it is illegal. If you apply for a house that has not been approved, you can't get a legal blueprint and you will be in trouble in the future.