New York City rent stabilization (1974-present)
NYC's rent stabilization system caps annual increases but lets landlords raise rents for capital improvements and individual apartment improvements (IAIs). The IAI loophole drove rent spikes across the city for decades.
Landlords used IAIs aggressively, pushing rents far above the cap, especially in rent-stabilized buildings.
The loophole became a political flashpoint, leading to 2019 state reforms that limited IAI increases and required more documentation.
Shows how exceptions to a rent cap can become a loophole that undermines the cap. Saint Paul's appeal process is the same battleground.
