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HPD classes escalate silently — a Class A becomes Class B without notice.
NYC HPD · real-time
HPD · Detection engine
NYC HPD violation monitoring, before the fine.
HPD is the tenant's agency. Run an HPD violation lookup by address to see open Class A, B, and C NYC HPD violations on any building — then keep monitoring it. One complaint can become a Class C in under a week.
Live scan
Every few minutes
512K+
2024 volume
~15 min
Alert latency
app.violationwatch.nyc
The problem
Why HPD monitoring is hard to do manually.
02 / 03
Heat season (Oct 1 – May 31) triples complaint volume overnight.
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Unresolved Class C violations follow the property through every refinance and sale.
What we detect
Every signal our engine surfaces for HPD.
Our detection engine fuses filings, inspection outcomes, complaint routing, and derivative signals into one feed. Public records are one input among many — never the ceiling.
- Class A / B / C violations at BIN & apartment level
- 311 housing complaints (prior to inspection)
- Inspector visit attempts and results
- Cure deadlines and certification of correction
- Paid and unpaid HPD fees
- Annual registration status
- Alternative Enforcement Program (AEP) inclusion
- HPD litigation and lien activity
512K+
HPD violations issued citywide in 2024
ViolationWatch detects every one of them
Classes & fines
Know the severity before it knows you.
HPD violations escalate in tiers. Every alert we send includes class, fine exposure, cure window, and the exact source record — no digging required.
Severity
Class & description
Our handling
INFO
Class A — Non-hazardous
Must be corrected within 90 days. Escalates if missed.
Instant alert · routed
WARN
Class B — Hazardous
30 days to correct. Common: no smoke detector, mold.
Instant alert · routed
CRITICAL
Class C — Immediately
24 hours to correct. No heat, hot water, lead paint, bedbugs.
Instant alert · routed
Typical fine range · $10 – $1,500+ per violation per day
Check a specific address →The workflow
How HPD monitoring works for your buildings.
01
Add a building by address
Paste any NYC address. Our engine auto-resolves to BIN & BBL, backfills prior HPD history, and flags every open item on day one.
02
Our engine monitors 24/7
Signal fusion across every HPD source runs continuously. New filings, inspection outcomes, and derivative indicators are caught within minutes.
03
Alerts route to the right people
Email, WhatsApp, Slack, SMS — per-building and per-severity. Your super sees heat complaints; your counsel sees Class 1s and OATH dates.
Address-level search
Free HPD violations lookup by address — every open Class A, B, and C in seconds.
An HPD violation lookup by address is the fastest way to see what a NYC rental building is dealing with right now: Class A non-hazardous, Class B hazardous, Class C immediately hazardous (heat, hot water, lead, mold, bedbugs). The free address tool runs the full NYC HPD violations search in one query — no account, no exact BIN required.
A one-time HPD violations lookup is half the picture. NYC HPD violations escalate silently — a Class A becomes a Class B without notice, and Class C complaints triple every October during heat season. Turning the lookup into real-time monitoring means every new HPD violation, inspection result, and cure deadline routes to the right person within minutes.
Common questions
How do I run an HPD violation lookup by address?
Paste any NYC street address into the free lookup tool. The engine resolves it to a BIN and surfaces every open NYC HPD violation, every Class A/B/C designation, every cure deadline, and the inspection history. The first HPD violations lookup is free and requires no signup.
What does an HPD violations lookup show?
A full HPD violation lookup returns: open Class A (non-hazardous), Class B (hazardous), and Class C (immediately hazardous) violations at BIN and apartment level, prior 311 housing complaints, inspector visit results, certification of correction history, paid and unpaid HPD fees, and Alternative Enforcement Program (AEP) status.
Are NYC HPD violations public record?
Yes — HPD publishes its violation database. The hard part is reading it correctly. Our HPD violations search clusters violations by apartment, separates active from cured, and translates HPD codes into plain English. That is why a manual NYC HPD violations search misses things that an automated HPD violation lookup catches.
Can ViolationWatch run an HPD complaint lookup before the violation is issued?
Yes. Every 311 housing complaint that routes to HPD is surfaced in your alert feed before the inspector arrives — that is the early-warning window where most issues can be cured without a formal HPD violation being issued. The HPD complaint lookup is built into the same monitoring feed.
HPD guides
Go deeper on HPD compliance.
HPD
HPD Violations NYC: Classes A, B, C & How to Clear (2026)
A complete walkthrough of HPD violations — Class A, B, and C — with cure deadlines, inspection triggers, and the exact HPD dismissal process.
Read the guide →
HPD
HPD Registration NYC: Who Must File & How (2026)
Which NYC buildings must register with HPD, the annual deadline, what it costs, how to file or update a registration — and what breaks when you don't.
Read the guide →
DOB
HPD
ECB
FDNY
Best NYC Violation Monitoring Tools & Services (2026)
An honest, up-to-date comparison of the best ways to monitor NYC building violations in 2026 — ViolationWatch, SiteCompli, the free NYC.gov portals, DOBGuard and more.
Read the guide →
DOB
HPD
ECB
Best Free NYC Building Violation Lookup Tools (2026)
The best free ways to look up NYC building violations in 2026 — the official DOB, HPD, and OATH/ECB portals, what each covers, and where the free tools fall short.
Read the guide →
DOB
HPD
How to Track NYC Local Law Deadlines in 2026 (Without Missing One)
The 11 NYC local laws that hit most buildings in 2026, the real penalty math when you miss one, the four ways owners try to track this today (and where each breaks), and the tool we built so you stop relying on a Google Calendar reminder titled "DON'T FORGET LL97."
Read the guide →
DOB
HPD
FDNY
NYC Local Laws Compliance Guide for Property Owners (2026)
Every NYC local law a property owner must know in 2026 — LL97, LL11, LL152, LL84, LL87, LL88, LL31, LL55, LL157, LL32, LL126, LL196 — mapped by building type, agency, and deadline.
Read the guide →Related monitoring
Every NYC agency. One signal feed.
DOB
Department of Buildings
Permits · stop-works · FISP
View coverage →
ECB
Environmental Control Board
OATH hearings · fine mitigation
View coverage →
FDNY
Fire Department of New York
Fire code · C of F · vacates
View coverage →
311
City Service Complaints
Early warning · pre-violation
View coverage →Start today
Start monitoring HPD today.
Seven-day free trial. Cancel anytime. Setup in under a minute. Cover one building or a whole portfolio — same engine, same speed.