Determine if apartments are rent-stabilized using HPD data, building characteristics, and DHCR records.
Last updated: March 2026 · 9.4M+ properties indexed
Generally, buildings with 6+ units built before 1974 are rent-stabilized (with exceptions).
HPD building registration data indicates the number of stabilized units. RegWatch includes this in property profiles.
Buildings receiving 421-a or J-51 tax benefits must register units as rent-stabilized during the benefit period.
The Division of Housing and Community Renewal (DHCR) maintains the official rent stabilization registry.
Rent stabilization status significantly affects property value and income potential for multifamily investors. RegWatch's tax exemption data and HPD records help identify stabilized buildings.
You can search some NYC agency databases for free individually (ACRIS, DOB BIS, HPD Online, DOF). RegWatch offers a free account with unlimited property data that searches all 270+ sources at once. Our coverage extends beyond NYC to Nassau, Suffolk, Westchester, and New Jersey counties.
Manually: 30 minutes to several hours per property depending on depth. With RegWatch: under 3 seconds for a complete profile from 270+ sources.
No special tools required. RegWatch works in any modern web browser. For manual research, you just need internet access to city agency websites.
RegWatch data from official NYC sources is updated multiple times per day. Most records are within 24 hours of the agency databases.
Search 9.4M+ properties across NYC, NJ & CT. Unlimited free property data – no credit card required.
Get Started Free