- Glossary
- /HSTPA (Housing Stability & Tenant Protection Act)
NYC rental glossary
HSTPA (Housing Stability & Tenant Protection Act)
The sweeping 2019 New York law that reshaped rent regulation, ending vacancy deregulation and capping improvement increases.
The Housing Stability and Tenant Protection Act of 2019 was the most significant rewrite of New York rent law in a generation. It permanently extended the rent-regulation statutes, eliminated high-rent and high-income vacancy deregulation (so units can no longer simply "leave" stabilization by crossing a rent threshold), and abolished the vacancy bonus that let landlords raise rent sharply between tenancies.
HSTPA also slashed what landlords can recover from MCIs and IAIs — lower caps, longer amortization, and an expiry on the surcharge — and lengthened the lookback period for overcharge claims. Many of the compliance ceilings a modern NYC rental system enforces trace directly to this statute.
In short, HSTPA is the reason a rent-stabilized unit stays stabilized, why improvement increases are bounded and temporary, and why getting a legal rent wrong carries real lookback exposure.
Related terms
- Rent StabilizationA NYC regulatory system that caps annual rent increases and grants tenants a near-automatic right to renew their lease.
- Major Capital Improvement (MCI)A building-wide capital upgrade that lets a landlord apply for a permanent rent increase on rent-regulated units, subject to caps.
- Individual Apartment Improvement (IAI)An in-unit renovation that lets a landlord add a capped, time-limited increase to a rent-regulated apartment’s legal rent.
- Legal Regulated RentThe maximum lawful rent for a rent-regulated unit, registered with the state and built up from a base plus permitted increases.
- Preferential RentA rent a landlord charges below a stabilized unit’s legal regulated rent — which, post-HSTPA, generally becomes the base for renewals.
- DHCR (Division of Housing & Community Renewal)The New York State agency that administers rent regulation — registering legal rents and adjudicating overcharge complaints.
- Vacancy LeaseThe first lease a new tenant signs on a unit — as opposed to a renewal with an existing tenant.
This definition is general information about a New York City rental or rent-regulation concept, not legal advice. The rules change and often turn on facts specific to a building, unit, and tenancy — confirm the current rule and consult a qualified attorney before acting on any individual matter.