- 1) The property value, and therefore the property taxes, continue to rise - but the building owners have no way to offset these costs because they can only charge 'X' for rent. As the building requires upgrades or repairs, again, the owners have no way to raise that additional revenue because they can only charge 'X'. Result? The building falls into disrepair over time because maintaining it further is a financial loss for the owner. This leads to many rent control buildings being scummy, dangerous, roach-infested havens.
2) People with low income move in, and never move out. Fairly obvious. You take an apartment on Manhattan Island, or downtown Seattle, or Saulsalito CA, and fix the rent where a highschool graduate working their first job can afford it. The highschool graduate moves in, and never leaves. Now, a 1 bedroom apartment that might be rented by a professional married couple is instead occupied by a single worker. Apply this same rule to 2br and 3br "rent controlled" housing. By random luck-of-the-draw individuals are able to obtain more space than they need in really hot real estate markets through rent control. What's the consequence? Others who actually need that same space to accommodate more people (families) can't find housing. Behold, the housing shortage just got worse.
3) Buildings stop being built. When a city starts implementing rent control, investors stop paying to have buildings created in rent controlled zones. They know they're going to lose money on them. The one exception, of course, is "Luxury" housing which is usually exempt from rent control laws. So in their effort to fix the housing shortage politicians actually discourage more housing from being built, except for rich folks.
Rent control/Affordable housing in the news right now:
Affordable housing projects in Poughkeepsie, Beacon receive $10M from state
Go Out to Eat in Alexandria, Help Finance Affordable Housing
Can good design help NYC’s affordable housing crisis?
Amazon to Affordable Housing: Screw You
$5.1 million awarded for Lansing affordable housing
ETC.
Affordable housing only aggravates a housing crisis and often leads to landlords abandoning buildings that fall into disrepair, or burning them down for insurance money. Now that you know what's up, I hope you will oppose rent control policies whenever and wherever you meet them.