NYC Building Violations Explained: HPD, DOB, and ECB Guide for Investors
Every distressed property in New York City carries a paper trail of city agency records, and for investors, that paper trail matters more than almost any other piece of due diligence. Building violations attach to the property itself, not to the owner who caused them. Buy the property, and you inherit whatever HPD, DOB, or ECB has on file, whether you knew about it at closing or not.
This guide explains what these three violation types actually mean, why they show up so often on distressed and probate properties, and how to check a specific address before you make an offer.
The Three Agencies That Issue NYC Building Violations
New York City building violations come from three different agencies, and each one covers a different category of problem:
- HPD (Department of Housing Preservation and Development) - enforces the Housing Maintenance Code: heat, hot water, pests, lead paint, mold, and general dwelling conditions in residential buildings.
- DOB (Department of Buildings) - enforces construction, structural, and zoning rules: illegal work, unsafe conditions, illegal conversions, and permit compliance.
- ECB (Environmental Control Board, now under OATH, the Office of Administrative Trials and Hearings) - the tribunal that adjudicates DOB and some other agency violations and imposes the monetary penalties.
A single problem property can carry violations from all three at once, a DOB violation for illegal work, an HPD violation because that illegal work left a unit without heat, and an ECB penalty because nobody responded to either one.
HPD Violations: Class A, B, and C
HPD violations are ranked by severity, and the class determines both the required repair timeline and how seriously it should factor into your underwriting:
Class A - non-hazardous. Minor conditions: a missing smoke detector, an unpainted wall past its cycle. Legally must be corrected within 90 days. Low underwriting concern individually, but a large volume of Class A violations on one property is a signal of prolonged neglect.
Class B - hazardous. More serious: no lighting in a public area, a broken door lock, plumbing leaks. 30-day correction window. Worth pricing into your renovation budget.
Class C - immediately hazardous. The most serious tier: no heat or hot water in winter, lead paint hazards where a child under 6 resides, rodent infestation, structural collapse risk. Depending on the condition, correction windows can be as short as 24 hours, and HPD can perform emergency repairs itself and bill the owner. If unpaid, that bill becomes a lien on the property.
DOB Violations: From Paperwork to Vacate Orders
DOB violations span a much wider range of severity than HPD's three-tier system:
Work without a permit or illegal conversion. Common in older multi-family properties where a basement or attic was converted to living space without approval. These issues need to be legalized or reversed before the space can legally be used or rented.
Unsafe conditions. Structural issues such as facade problems, foundation cracks, or other unstable conditions that DOB has flagged as dangerous. These can carry an unsafe designation that follows the property in public records until resolved by a licensed engineer's sign-off.
Vacate Orders. The most severe outcome: DOB, sometimes jointly with the Fire Department, orders a building or unit emptied because conditions are unsafe for occupancy. A Partial Vacate Order affects specific units. A Full Vacate Order affects the entire building. Properties under a Full Vacate Order cannot be legally rented until the underlying conditions are resolved and the order is lifted.
ECB/OATH Violations: The Financial Layer
When a DOB or related violation goes to hearing, it becomes an ECB/OATH case with a monetary penalty attached. This is the layer investors most often underestimate.
An unpaid, unresolved ECB penalty becomes a judgment. Judgments can be docketed against the property and, depending on amount and age, can complicate or block a clean title transfer. Title companies routinely run an ECB/OATH search as part of closing. If you are underwriting a deal informally before a title search is ordered, running this search yourself first saves you from a late surprise.
Default judgments are the trap. If nobody appeared at the hearing, which is common when a property has been vacant, in foreclosure, or tied up in a probate estate with no one actively managing it, ECB issues a default judgment. That often means a higher penalty than a contested case would have produced.
Why This Matters More on Distressed and Probate Properties
Violations concentrate on exactly the kind of properties this site tracks. An owner who is behind on their mortgage, or an estate with no one actively managing the asset, is also the owner least likely to be responding to agency notices or making timely repairs. The violation history on a distressed property often tells the same story as the foreclosure filing itself, just from a different city agency's point of view.
This is especially true on probate properties. An elderly owner who could no longer maintain the building, followed by an estate administration period where no one has clear authority or urgency to make repairs, is a common path to a stack of open violations on top of the property already being available through Surrogate's Court filings.
Learn how probate property sales work in New York | Browse Probate Property Listings
How to Look Up NYC Building Violations (Free, By Address)
All three violation types are searchable for free, directly from the city:
- DOB NOW or BIS (Buildings Information System): search by address, BIN, or BBL for DOB violations, complaints, permit history, and any active Vacate Orders.
- HPD Online: search by address for HPD violations by class (A/B/C), plus any emergency repair charges HPD has placed as a lien.
- ECB/OATH violation search: search by address or violation number for penalty amounts, hearing status, and default judgments.
Frequently Asked Questions
What is the difference between an HPD violation and a DOB violation?
HPD violations cover housing maintenance conditions inside residential units, such as heat, pests, lead paint, and general upkeep. DOB violations cover construction, structural, and permit compliance issues. A single building can have both at the same time for unrelated reasons.
What is an ECB violation?
ECB, now OATH, is the tribunal that hears and penalizes DOB and certain other agency violations. An ECB violation generally refers to the monetary penalty phase of a DOB violation that went to hearing.
Do building violations transfer to a new owner when a property is sold?
Yes. Violations and any associated liens or judgments attach to the property, not the individual who owned it when the violation was issued. Buying the property means buying the obligation to resolve them.
Can I buy a property with an active Vacate Order?
Yes, and it is a common distressed-property scenario, but the property cannot be legally occupied or rented until the underlying conditions are corrected and the order is lifted by DOB. Budget for that work and timeline before underwriting the deal, not after closing.