How to Check a Building Before Renting in NYC

Checking a NYC building before renting means reading its public file: HPD violations, DOB records, 311 complaints, bedbug filings, ownership, and litigation. This guide walks through all seven steps — what to look up, where each record lives, and how to tell real problems from normal city noise.

A listing is an ad. It has square footage, a price, and photos shot at 2pm in perfect light — and nothing about the three open heat violations. That's not a scandal; ads advertise. It just means the listing was never going to be where you learn what living there is like.

The building's file is. New York keeps records on every one of its residential buildings — inspections, violations, complaints, court cases, ownership — and almost all of it is sitting in city systems you can read before you sign anything. Most renters never look. Not because they don't care, but because the file is scattered across a half-dozen agencies with search interfaces designed sometime around the Bloomberg administration.

This guide walks through the whole check, step by step: what to look up, where each record lives, and how to tell a real problem from the normal background noise of an old building in an old city. It takes about an hour per building if you do it by hand. We'll be straight with you about that part.

The short version

1. Pull the building's HPD violations — the housing-code record.
2. Check DOB for structural and construction issues.
3. Read the 311 complaint history — especially heat.
4. Check the bedbug filing history.
5. Find out who actually owns the building — and what else they own.
6. Look for housing litigation against the building.
7. Verify what you saw at the viewing against what's on file.

Now the long version, because the short version is where most guides stop and the details are where the money is.

Step 1: Pull the HPD record

HPD — the Department of Housing Preservation and Development — is the agency that inspects apartments for housing-code conditions: heat, hot water, mold, pests, leaks, lead paint. When an inspector confirms a problem, it becomes a violation on the building's file, and that file is public.

Violations come in three classes, and the classes are the first thing to learn to read:

• Class A — non-hazardous. Minor stuff. The landlord gets 90 days to fix it.
• Class B — hazardous. Leaks, mold, vermin. 30 days.
• Class C — immediately hazardous. No heat, no hot water, lead paint, broken locks. The landlord is legally required to fix a Class C within 24 hours.

That 24-hour rule matters, because the useful question isn't "does this building have violations" — it's "how long have they been open." A Class C that was fixed last month is a building where things break and get repaired. A Class C that's been open since the Biden administration is a building telling you exactly how the next lease will go — and as of this writing, 39,802 open Class C violations in the city's records are exactly that old.

One thing to know before you look, so the numbers don't scare you off a fine apartment: most NYC buildings have something on file. A flag is a heads-up, not a dealbreaker. What you're reading for is pattern — the same complaint every winter, hazardous violations that never close, counts that would embarrass the block.

Where to look it up: HPD Online lets you search by address — or check any building's HPD record in one search here.

Step 2: Check the DOB record

The Department of Buildings covers a different kind of trouble: structure, construction, elevators, boilers, facades. If HPD is "is the apartment livable," DOB is "is the building sound."

DOB records are split across two systems — BIS, which holds the history back to the 1980s, and DOB NOW, which holds newer filings. The same building can have records in both, which is the kind of detail the city considers your problem.

What to look for:

• Open violations, especially anything the file marks hazardous.
• Stop work orders — construction was ordered halted. Worth understanding why before you live under it.
• Vacate orders — part or all of the building was ordered emptied. Read the history even if it's closed.
• Active permits — not a red flag, but a preview. A full gut renovation on the floor above you is information you want before the lease, not after.

The city's own status labels are their own genre. A violation can sit at "failed to correct" for years — the record's way of saying still broken, just older now. Quote the file to your broker sometime and watch what happens.

Step 3: Read the 311 complaints — especially heat

Violations are what inspectors confirmed. Complaints are what tenants reported — and they're often the earlier, more honest signal, because they show what residents actually pick up the phone about.

The one category to weight above all others: heat. Heat complaints are seasonal by definition, which makes them the easiest pattern in the whole file to spot. An apartment that shows beautifully in July can have a radiator that quits every winter, and the only place that shows up is the complaint history. Look at the last two or three cold seasons. If the same building generates a cluster of heat and hot-water complaints every year, that's not bad luck — that's a schedule.

Also worth scanning: noise, pests, and anything filed repeatedly from the same address. One complaint is a Tuesday. The same complaint forty times is the building describing itself.

Step 4: Check the bedbug history

Since Local Law 69 of 2017, NYC landlords have been required to file an annual bedbug report with HPD — every December, covering the year behind it — and the filing history is public through the city's records.

Two things make this record worth your minute. First, bedbugs are the problem renters fear most and ask about least — nobody wants to be the applicant who says the word out loud at a viewing. The file lets you ask without asking. Second, an infestation history isn't necessarily disqualifying — bedbugs happen to good buildings — but recent, repeated filings are a different conversation, and you want to have it before the security deposit clears.

Step 5: Find out who owns the building

This is the step almost nobody does, and it's the one with the highest information-per-minute.

Every residential building with three or more units has to register its ownership with HPD. Cross-reference with ACRIS — the city's property-transfer record — and you can usually get from an address to a name. Usually. A lot of buildings are owned by LLCs with names like "123 Street Owner LLC," which is legal, common, and tells you nothing by itself. The work is connecting the LLC to a portfolio: the same managing agent, the same registered address, the same head officer across many buildings.

Why bother? Because a building's future maintenance is mostly a question about its owner's habits, and habits show up across a portfolio. An owner whose other buildings run clean files is an owner with a system. An owner whose portfolio averages triple the violations of comparable buildings has a system too — just not one you want to live inside.

Also worth a look: the Public Advocate's Worst Landlord Watchlist, published every January. Whether your building's owner is on it is a thirty-second check.

Step 6: Look for housing litigation

HPD brings cases against buildings over unresolved conditions, and those cases are on file too. A building with active or recent HPD litigation is a building where the problems got bad enough that the city went to court about it — which is several escalation steps past "there's a violation."

This record is thinner and clunkier to search than the others, but when there's something in it, it's rarely ambiguous.

Step 7: Verify the viewing against the file

You will see the apartment for something like five minutes. The lease runs a year. That ratio is the whole reason the file exists — so close the loop between the two:

• Fresh paint in one spot? Check for water-leak or mold complaints on that line.
• Radiators look ancient? You already read the heat history in Step 3.
• "Newly renovated"? Check DOB for the permits. Renovation without permits on file is a fact worth knowing, whatever you decide it means.
• Ground-floor unit? Weight the pest and rodent records more heavily.

And ask the questions the file raised. Not as a gotcha — as a tenant who did the reading. "I saw there were heat complaints the last two winters — what changed?" is a fair question, and the answer (and the speed of it) is data too.

What this all costs you

Here's the honest tally. Done by hand, the full check runs through five or six separate city systems, two of which overlap, none of which talk to each other, most of which want the address formatted their own way. Budget about an hour per building — and apartment hunting in this city means running that check five, ten, fifteen times, usually the same night a listing goes up, because by tomorrow it's gone.

That's the homework. It's real, it's free, and everything above tells you how to do it.

VeriCrib exists because the homework shouldn't take an hour. One search pulls the building's whole file — violations, complaints, bedbug filings, litigation, ownership — reads it, and hands you the verdict: what's on file, what actually matters, what's noise. Not the raw records; the reading. Your first three reports are full reports, on us.

Either way — do the check. Five minutes of viewing, a year of lease. The file is the only party in that transaction with no reason to charm you.