Office space is both cheap and shockingly expensive. It’s cheap because it’s usually a few dollars a square foot, often as low as $1-2. It’s expensive because you need a lot of square feet, plus room for expansion. Your average employee needs 100-150ft in order to not feel cramped, including personal and communal space.

Here’s an article from 5 years ago that showed a $10k per employee per year cost difference between NYC and Dallas. https://www.marketwatch.com/story/heres-how-much-your-compan...

Keep in mind that office prices are going to vary wildly based on location. High rises in the downtown with good access to public transit are going to cost a lot more than an office park that’s just barely within city limits. So these averages per city are going to hide huge standards of deviation.