The discontent with the basement location was strong and the office was still growing, so another attempt was made.
Twitter tried to lease the east side of the building but the landlord asked for too much money, so Twitter subleased the top floor of the building behind it.
Subleasing meant it wasn't decorated with Twitter design or outfitted like the main office. There were still logos of the company that leased it out.
It always felt like the fake office, which is how people referred to it.