https://www.cnet.com/news/microsoft-updates-office-with-redesigned-hq-redmond-washington/

Roughly a year from now the company will begin a redevelopment of its 500-acre campus, adding new buildings, shops, walking trails and sports fields for soccer and cricket. The new HQ, which will take 5-7 years to overhaul, will have space for an extra 8,000 staff on top of the 47,000 employees.

Microsoft says the pedestrianised campus will have a green carbon footprint thanks to an energy monitoring system powered by the company's own Azure cloud computing service.