https://www.dailymail.co.uk/news/article-9764995/Facebook-de... "In addition to the housing and retail spaces, Facebook also plans to have 1.25 million square feet of new office, meeting and conference room space for the social media company."

https://techcrunch.com/2018/05/29/this-is-the-first-look-at-... "Nvidia is preparing a new, massive building in Santa Clara, CA and this is it. Called Voyager, it will be larger than the building Nvidia just finished constructing by 250,000 square feet."

I could go on...