For those living in SF, this significantly expands the number of eligible apartments for rent control. Right now only multi-unit homes/apartment complexes built before June 1979 have rent control. Now everything (except single family homes/owner occupied duplexes) built within last 15 years on rolling basis is eligible.

Given how slowly SF builds housing, the fact that anything built 2004 and earlier is eligible basically means almost everything except new high rises.