Answer extracted from the Coffee & Cap Rates: Commercial Real Estate Podcast — listen to the full episode below.
California's Costa Hawkins law explicitly prohibits the vacancy control mechanism that New York enshrined in its Housing Stability and Tenant Protection Act (HSTPA). While rent control exists across the country, New York became uniquely aggressive in implementing vacancy control—a policy that prevents rent adjustments when units turn over—and California deliberately excluded it from its own statute after witnessing its impact elsewhere.
The core difference lies in one specific mechanism. California's Costa Hawkins law was written to allow landlords to reset rents to market rates when a tenant vacates, provided the unit meets current housing code standards. This vacancy reset creates an incentive to bring units back into active service, avoiding the permanent warehousing of apartments.
New York's HSTPA, enacted in 2019, moved in the opposite direction. As Kenny Burgos explains in the episode, the state implemented strict vacancy control that locks rents even after tenants leave. Burgos notes that no other state has been "as daring" in pursuing this model, and for good reason: the consequences have been severe for housing availability and building maintenance.
The significance of this difference becomes concrete in the numbers. At minimum, 50,000 rent-stabilized apartments have been removed from the market due to New York's vacancy control policies, according to housing advocates cited in the episode. Landlords, faced with rent-locked units that generate insufficient revenue to cover rising operating costs, have simply taken buildings offline.
Burgos underscores that operating costs for rent-stabilized apartments average 1,300 dollars per unit—expenses that don't pause because rent is frozen. When vacancy control prevents rent adjustments, the math becomes impossible for building owners, particularly in older stock where over 80% of the 1 million rent-stabilized units are pre-1974 housing.
"A vacancy reset does not increase rent on any single in-place tenant today, it doesn't cost the city or state government a dollar, and it brings housing supply on the market, softening free market rents."
Kenny Burgos — CEO of NAYA (New York Apartment Association), lifelong New Yorker and former New York State Assembly member. Burgos majored in economics and focused extensively on housing policy during his tenure in the state legislature, bringing direct experience in rent regulation frameworks to his current role advocating for apartment owners and housing providers.
California explicitly rejected this path by preserving the vacancy reset option in Costa Hawkins. That choice reflects a deliberate policy decision: maintaining some flexibility in the rental market to keep units in service and avoid the housing supply collapse that New York has experienced under stricter vacancy control.
Burgos has discussed at length in this podcast how the Rent Guidelines Board's decisions compound these structural problems, applying uniform rent increases across buildings with radically different financial profiles—but the vacancy control prohibition in California law remains the foundational difference.
To understand the full scope of how New York's rent-stabilization policies have fractured building economics, the episode explores the 451 million dollar Flagstar bankruptcy transaction that dominated Q1 2026 rent-stabilized activity—a stark illustration of how vacancy control, combined with other HSTPA provisions, has decimated building values.
A vacancy reset allows property owners to adjust rent when a unit becomes vacant, provided they invest in bringing the apartment to current housing code standards. Proponents argue this approach increases housing supply without direct government expenditure.
The Rent Guidelines Board operates as a blunt instrument when aggregating data from buildings with completely different financial profiles across the city, masking the true financial strain on buildings with older stock and higher operating costs.
Over 80% of the 1 million rent-stabilized units are pre-1974 housing. Pre-1974 buildings are permanently and involuntarily in the rent-stabilization system, unable to exit even when market conditions make continued operations financially unviable.