The FRED series Real Estate - Assets - Balance Sheet of Nonfarm Noncorporate Business is now known as Nonfinancial Noncorporate Business; Real Estate at Market Value.
The source series id is FL115035005.Q.
This series no longer appears in Table B.104.
This data still updates, to see data for this series, go to https://fred.stlouisfed.org/series/NNBRMVQ027S.
For further information see the assistance provided in the guide to the Financial Accounts at http://www.federalreserve.gov/apps/fof/.
Board of Governors of the Federal Reserve System (US), Nonfinancial Noncorporate Business; Real Estate at Market Value, Level (DISCONTINUED) [REABSNNB], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/REABSNNB, February 23, 2019.