My place

I am living in the city of Moscow in one-bedroom flat on the fifth floor. My apartment consists of a big living room, a bathroom, a corridor and a kitchen. The room has a bed, TV, cupboard and a window. In the kitchen you can find a big dinner table with stools and a fridge. I am comfortable in my house. The apartment has all the (important) utilities: hot and cold water, electricity, and gas. All these things make my life here sustainable and good. Outside of the building there is a garden with trees and bushes. Near the road leading to the underground station, there is a playground for children.

Notes:

This is quite good. 

I would leave out the corridor, since it is not a room. Also, you say it's a one-bedroom flat, but you don't mention the bedroom.  You can say: in addition to the bedroom, there's a (or I have) a big living room, a kitchen and a bathroom.  

sustainable is not the correct word to use.  I'm not sure what I would replace it withhttps://dictionary.cambridge.org/dictionary/english/sustainable

able to continue over a period of time: