this project is completely modular which has some unique assets and some trim sheets. "the Office" concept is inspired by the video game "Batman: Arkham Assylum" and the environment is completely redesigned and turned into original diorama which is in real life scale in the game and it is absolutely playable.
All the props in the scene are optimized for maximum smoothness for player and I used Quixel decal to make it the interior more unique and alive. All the texture were designed in substance painter and created and optimized by Autodesk Maya.
Thanks to Mohammad for his great feedback that helped me so much to improve "The office" Visually. 
https://www.artstation.com/3mm