NYC Real Estate Glossary

The definitive New York City real estate glossary to help home buyers and renters navigate the market in the city we call home.
  • Administrator Operated - Privately owned buildings that have been abandoned by their owners, resulting in conditions that are dangerous to the tenants' life, health and safety.
  • Alternative Enforcement Program - The Alternative Enforcement Program (AEP) is a mechanism used by the New York City to identify residential buildings that are not properly maintained and ensure that violations and the conditions that caused the violations are corrected.
  • Building Registration - Residential properties are required to register annually, providing the City with an updated list of building management and contact information.
  • Code Orange - The Sex Offender Registry now posts multiple photos of registered sex offenders, as they become available, to provide New Yorkers with additional information to keep their families safe.
  • E Designation / Restrictive Declaration - Environmental (E) declarations are created as part of zoning changes.
  • Easement - An easement is the right to use or enter onto someone else’s land for a specific purpose.
  • Energy Benchmarking - In an initiative to improve citywide energy and water efficiency, New York City requires large buildings that meet certain criteria to submit an annual “benchmarking” report detailing their energy and water consumption.
  • ENERGY STAR Certification - ENERGY STAR certified buildings save energy, save money, and help protect the environment by generating fewer greenhouse gas emissions than typical buildings.
  • FDNY Building Vacate List - The New York City Fire Department Building Vacate List are buildings or portions of buildings deemed to be an immediate threat to life.
  • Flip Tax - Despite its name, a flip tax is not a tax, but rather a fee imposed by some New York City coops any time a unit in the building is sold.
  • Flood Risk - Separate and distinct from the NYC hurricane evacuation zone maps, flood risk maps are maintained by FEMA and are a primary factor in determining flood insurance requirements and costs.
  • Geothermal Well - Geothermal wells use the earth as a heat source or sink by means of a circulating water loop.
  • Ground Lease - A long-term lease of land, on which a tenant is permitted to erect structures and make land improvements.
  • Hurricane Evacuation Zones - Hurricane evacuation zones are areas of the city most likely to be inundated during a hurricane.
  • Landmarks, Historic Districts, and Historic Places - Learn more about these potential regulations.
  • LEED Certification - LEED, or Leadership in Energy & Environmental Design, is a green building certification program that recognizes best-in-class environmental building strategies and practices.
  • Loft Buildings - The Loft Law is a NY State law designed to protect tenants in NYC who are illegally living in commercial or factory buildings.
  • Oil Boiler Conversion - Old boilers that use #4 or #6 oils will be phased out which could lead to high replacement costs and/or higher utility bills.
  • Proactive Preservation Initiative - The City’s comprehensive approach to identifying and addressing deteriorating physical conditions in multifamily buildings.
  • Property Lien - A lien is a claim that is made against property in order to secure payment of a debt.
  • Seinfeld Rule - When a building fines an owner for having a renovation project than runs beyond a set time frame.
  • Submetering - Submetering is a process by which the supply of electricity comes into the building through a master meter and is treated as a single account from the perspective of the utility company.
  • Tax Assessment Petition - When determining how much property tax to charge condo and coop owners, New York City relies on a statistical model to calculate the property’s assessed value.
  • Tax Exemptions and Abatements - Exemptions lower the amount of tax you owe by reducing your property's assessed value.
  • Worst Elevator Offenders - The Building Department's list of the worst elevator offenders.
  • Worst Landlord Watchlist - The Office of the Public Advocate's list of worst landlords.