IELTS Writing task 1 - please help me to correct and evaluate my essay

The maps illustrate the transformation of an office building from now to the future.

To begin with, the main entrance located on the southeast side of this building will be moved to the direct south in the future. Furthermore, it is clear that the construction of the office nearby will be affected. As can be seen from the map, there are four rooms for the office now. However, in the future, these rooms will be constituted by two large rooms. Simultaneously, the new entrance will be located between two office areas in the future. Moreover, at present, opposite the main entrance is the kitchen room, the canteen and a storeroom respectively from West to East. In the future, both the kitchen and canteen will make way for two office rooms. Meanwhile, the storeroom will exist without any change in location or size.

In addition, the grass areas which are situated in the west and east of this plan will be demolished in the future to build many other things. There will be an outdoor seating area in the northwest of this building. Also, many chairs will be added in the left-hand corner of this office building in the future. Another thing to add is that to the east of this building WCS which is sited nearby storeroom and the grass area now will be moved to the northeast corner of this building. Besides, the coffee machine will be added close to the WCs. Opposite this area, a meeting area will be erected. Finally, some chairs will be added adjacent to this meeting area.

Overall, this office building will witness a dramatic change in the future with a lot of office rooms built up.