The place where I live is an apartment and I live with my family.

It is located near the sea, so it is good for (taking) a walk.

My apartment is on the 4th floor. It has three bedrooms and two bathrooms. My parents share the master bedroom and the attached bathroom. It also has a living room and a kithchen. There are three balconies (in total).

One is outside the living room.   나머지 두 개를 쓸 때는 the other 을 사용하면 되나요? -> 네 the others 혹은 the other balconies... 

Our family have dinner at a living room.

When I was young, my parents  turned my room into my yonger brother's room. So the bigger room with exercise eqipment turned into my room. this is the first apartment my parents had since I was born. The this place is very old, but it is so cozy. So I'm not complaning.