Age is just a numberDeveloper MetroLoft is converting the 1970s-era office buildings into 1,600 apartments. Most conversions have involved 1950s and older office buildings. COVID-19-induced remote and hybrid work models rendered many office buildings obsolete. That was the case when a developer converted a 1990s office building near the White House in Washington, D.C. Complexity can make or break dealsA real estate lender walked away from financing the conversion of a 1922 Boston office building, citing its complexity.