But the measures have largely failed to stop rents—currently rising at a record pace—from nearly doubling in the past 10 years. Instead, the rules have made it harder for newcomers to find affordable housing in Berlin. Now, authorities acknowledge that their efforts to shield tenants from market forces may be doing more harm than good. And they’re trying a new approach: Build more.

See the article here (it will likely require a paid subscription to the WSJ).