Rent-controlled versus rent-stabilized units
New York has two separate systems, and many older buildings contain units under each. Rent control is the older program. In New York City it generally covers apartments in buildings built before 1947 where the same tenant, or a qualifying family member, has lived continuously since before July 1971. Few units remain, rents are often far below market, and when a rent-controlled unit is vacated it usually becomes rent-stabilized rather than free-market.
Rent stabilization is far larger. It comes from the Rent Stabilization Law in New York City and the Emergency Tenant Protection Act, and it generally covers buildings of six or more units built before 1974, plus units that became stabilized in exchange for tax benefits. Outside the city, ETPA applies only in municipalities that have opted in, historically in Nassau, Westchester and Rockland counties, and the 2019 law opened the option to qualifying localities statewide.
What the 2019 HSTPA changed
The Housing Stability and Tenant Protection Act of 2019 reset the economics of stabilized buildings, and it was made permanent rather than subject to periodic renewal. The main changes that affect value:
- Vacancy decontrol and high-income deregulation ended, so stabilized units no longer leave the system when rents pass a threshold.
- The statutory vacancy bonus and longevity increase were eliminated, so a unit’s rent no longer jumps automatically at turnover.
- Preferential rents became the base for the current tenant, limiting increases back up to a higher legal rent during that tenancy.
- Individual apartment improvement (IAI) increases were sharply limited, and major capital improvement (MCI) increases were capped at 2% a year, with longer amortization and removal after 30 years.
- The overcharge lookback period and penalties were expanded, making clean rent histories more important.
Later adjustments and the Rent Guidelines Board
The 2024 state budget loosened the IAI limits somewhat. Owners can now recover up to $30,000 in qualifying improvement costs, or up to $50,000 in certain long-occupied or long-vacant units, and increases for work done while a unit is vacant become permanent rather than dropping off after 30 years. The work must be documented with the state housing agency, and the numbers still rarely justify gut renovations of heavily distressed units.
For ordinary lease renewals, the New York City Rent Guidelines Board sets the allowable increases each year, and county boards do the same where ETPA applies outside the city. For renewals starting between October 1, 2026 and September 30, 2027, the city board adopted a freeze on both one-year and two-year leases, the first time two-year leases have been frozen. Owner groups have signaled a legal challenge. The practical effect for a seller is that a buyer will model little or no rent growth in the near term while taxes, insurance, fuel and payroll keep rising.
The 2024 state Good Cause Eviction law, which covers many unregulated units in New York City and in localities that opt in, also matters in mixed buildings, since it limits what a buyer can do with the free-market apartments too.
How this shows up in price
Buyers now value most stabilized buildings on in-place income with modest assumed growth, rather than on the prospect of converting units to market. That makes expenses, the physical condition of the building and the accuracy of the rent roll the main drivers of price. A building with high legal rents relative to its neighborhood, low vacancy and well-maintained systems holds value better than one with many long-vacant units needing work.
Records carry real weight. A buyer will pull state registration history for every stabilized unit and compare it with leases and the rent roll. Missing years, unexplained jumps or preferential rents that were not documented can create overcharge exposure that follows the building.
How Skyline approaches New York stabilized buildings
We underwrite each unit on its registered legal rent and the rent actually collected, apply Rent Guidelines Board orders as they stand, and assume rents stay regulated. We look closely at vacant units, since what they can earn depends on whether IAI work pencils under current limits, and we price real expense growth rather than a flat ratio. Skyline buys buildings of 5 units and up, occupied and as-is, including mismanaged or high-vacancy properties.
Because regulated income can be hard to finance at the price a seller wants, a seller-carry note is often worth discussing, and we can time the closing to fit a 1031 exchange. Expect clear feedback within about 48 hours once you send the rent roll and basic operating figures.
