‘1.5 billion square feet of office space could become obsolete,’ says Boston Consulting Group By: MarketWatch May 11, 2023 at 14:54 PM EDT A drop in demand for office space puts buildings at risk of becoming 'zombies,' a new report says. Read More >> Related Stocks: Airbnb, Inc. - Class A Common Stock Barclays PLC Common Stock Zillow Group, Inc. - Class C Capital Stock