That sounds weird to me. Our current office can sit 5, with conference room, kitchen, ... It costs about 20% of an engineer's salary. And we're in one of the most expensive place in the world for rent.
That actually sounds like a LOT of space compared to a 2-bedroom apartment in Brooklyn that would cost quite a bit more....
But even then, you can put 4/5 people comfortably in a 2-bedroom in Brooklyn if it's designed for it, and it's not going to cost you multiple times an engineer salary.
It might not scale as well though if you need to own your own campus with security, catering and all that.