According to Vastu Shastra you can make a balcony in North East corner. North and East direction is the best direction of balcony. It brings happiness, wealth and health. The sun rays enters directly in house/flat. It brings positive energy. If balcony north side then a money plant should be plat there and picture of God Ganesh / Hanuman fix on North East corner of Balcony. There is a option in South East corner you can make there balcony.