If the clean span of the living room can have 50 square meters, I estimate it will add columns, so your so-called 50 square meters should be opposite the living room is the dining room, and there is a corridor between the two, so the living room area a better set of sofa, coffee table, TV cabinet, vertical air conditioning, ok, If you feel that empty a fish tank 50 square meters is indeed the hall of the hall design focus is the TV background wall floor tiles to be large 80×80 the best wall with beige color top white sofa choose cream or beige hall and strive to be generous and decent hope you like it!