Linked post entry is complete bullshit:
1. the author's estimate for non-commoditized software development is ridiculously low (0.1%)
2. even then, those 0.1% are at the risk of not getting private/shared offices. Do you want that for people working on medical devices or other fun critical stuff now embedded in your everyday life? Well, too late. They are working in shitty environment right now, I know that because I'm one of them. Maybe one of the reason they are, is because a "manager" read that kind of
blog post which comfort them to be happy to do absurd economies.
3. you can have shared office room with multiple people per room. Even somehow big shared office room, if some trade-off are needed (although around 10 people should be a real max, otherwise above that there is no real difference with a big open-office floor.
4. if you want to do an economic analysis, even if the surface hypothetically needs to triple (which I don't believe for a sec, see above), you need to compare lost revenue per developer (or other interesting figures in case of not yet profitable) -- and think about non-linear factors -- to the cost of extra space renting (mostly linear).
"Pay[ing] almost three times less in office rental costs" (which again, I don't believe) is not a business goal.