You can lose an entire job's profit margin to a single DOB violation. Not because the fine itself is catastrophic - though it can be - but because of everything that comes after it. The lost workdays, the expediter fees, the OATH hearing that eats your Tuesday morning, the stop work order that idles three subs and blows your completion deadline.
This guide covers the actual penalty ranges, the costs that don't appear on the summons, and what determines whether you pay $800 or $10,000 for the same violation code.
The DOB issues violations across dozens of code sections, but most contractors deal with the same handful repeatedly. These are the ranges published in the NYC penalty schedule and informed by publicly available OATH hearing outcome data.
| Violation | Code Section | First Offense Range | Default Penalty |
|---|---|---|---|
| Work without permit | 28-105.1 | $2,500 – $10,000 | Full amount + fees + interest |
| Failure to maintain safe site | 28-301.1 | $2,500 – $25,000 | Full amount + fees + interest |
| Working after stop work order | 28-207.2.5 | $5,000 – $25,000 | Full amount + fees + interest |
| Boiler/mechanical violations | Various | $1,500 – $5,000 | Full amount + fees + interest |
| Expired permit (with active work) | 28-105.1 | $2,500 – $10,000 | Full amount + fees + interest |
| Failure to safeguard persons/property | 28-301.1 | $2,500 – $25,000 | Full amount + fees + interest |
Work without permit is the violation you'll see most often. It accounts for the largest share of ECB summonses issued by the DOB - the most commonly cited figure from city data puts it around 40-47% of all ECB violations, depending on the year and how you count related codes. If you've done plumbing, electrical, or structural work without the right DOB permit in place, this is what's coming.
Failure to maintain a safe construction site covers scaffold violations, missing safety netting, inadequate fall protection, and similar hazards. These carry the steepest fines because they involve worker safety, and the DOB has been increasingly aggressive about enforcement. The department issued over 4,000 stop work orders in 2025 alone - roughly 11 per day.
Working after a stop work order is where things get genuinely dangerous to your business. A $5,000 to $25,000 penalty per offense, and the DOB treats each day of continued work as a separate offense. This is not a fine you negotiate down easily.
Boiler and mechanical violations are the bread and butter for HVAC contractors. Failure to maintain equipment, failure to file inspection reports, operating without a current certificate of fitness. The fines are lower than construction violations, but they add up fast if you're servicing multiple buildings and let the paperwork slide.
Most contractors who show up to their OATH hearing with documentation showing the violation has been corrected walk out paying significantly less than the summons amount. How much less depends on the violation, your history, and what you bring to the hearing - but penalty reductions for corrected conditions are common and often substantial.
The DOB's own enforcement FAQ says that submitting an acceptable Certificate of Correction before the cure date can waive the hearing and penalty entirely for eligible violations. For violations that go to hearing, showing up prepared with permits, photos, receipts, and a corrected condition is the strongest position you can be in.
If you don't show up, you get the default judgment. Full penalty. No reduction. No negotiation. Additional fees on top. Interest accruing. According to OATH's published data, a large percentage of ECB cases end in default - meaning the contractor never appeared and got hit with the maximum automatically. More on that in our guide to missed OATH hearings.
The fine is the number everyone fixates on. In practice, it's often the cheapest part of the violation.
Lost work time is the real killer. Between gathering correction documentation, prepping for the hearing, sitting at 100 Church Street waiting for your case to be called, and doing follow-up paperwork, most contractors lose one to three full workdays per violation. If you're billing $500 to $1,000 a day depending on your trade, that's money gone.
Expediter and legal fees for OATH representation run $1,500 to $3,000 for a standard work-without-permit case. More complex violations or cases with multiple summonses can run higher. A lot of contractors handle their own hearings - and for a single straightforward violation, that's often fine. But if you're dealing with multiple violations at the same site or a penalty above $5,000, professional representation usually pays for itself through reduced fines.
Project delays compound the fastest. A stop work order freezes everything at that address. Subs are idle or get reassigned to other jobs and can't come back for weeks. Materials are sitting. Your client's move-in date or CO deadline is now blown. A single stop work order on a gut renovation can cascade into tens of thousands in delay costs before you even get to the fine itself.
Insurance implications are the long-tail cost nobody thinks about until renewal time. Multiple DOB violations show up in public records, and liability carriers review them during underwriting. It can affect your premiums and, in some cases, your ability to get bonded.
One plumber I spoke with got a $7,500 work-without-permit hit on a bathroom renovation in Brooklyn because his permit covered plumbing but not the structural work his framing sub was doing on the joists. The fine was painful. The three weeks of project delay while he sorted out the permit situation and got the stop work order lifted cost him more than the fine did. His client nearly walked.
311 complaints are the most common path to a DOB violation. When someone calls 311 or files an online complaint about construction activity, the DOB dispatches an inspector. For a deeper breakdown of how this process works and what the inspection timelines look like, see our guide to 311 complaints and DOB violations.
Routine inspections happen at sites with active permits. The inspector checks that work matches approved plans, safety measures are in place, and the permit is current. Expired permits discovered during routine inspections are a common source of violations for otherwise careful contractors.
Cross-agency referrals are increasing. The DOB, FDNY, OSHA, and HPD share enforcement information more actively now than they did five years ago. A fire safety complaint to the FDNY can trigger a DOB inspection. An HPD housing complaint can lead to a permit check. You can't assume that compliance in one agency's lane means you're clear everywhere.
There's also a fourth path that people don't talk about as much: DOB sweeps. The department periodically targets specific neighborhoods or violation types for concentrated enforcement. These aren't triggered by individual complaints - they're proactive, and you won't see them coming. If you're working in a neighborhood that's getting a lot of development activity, the odds of a random inspection go up.
The correction and resolution process differs depending on whether you received a DOB violation (a notice to correct) or an ECB/OATH summons (a civil penalty).
For DOB violations: Correct the violating condition. File a Certificate of Correction (AEU2 form) through DOB NOW with supporting documents - permits, photos, inspection reports, contractor affidavits. The DOB may schedule a re-inspection to verify the correction. Once accepted, the violation is dismissed.
For ECB/OATH summonses: You have a hearing date on the summons. Your options are to appear in person at 100 Church Street, request a phone or video hearing through OATH's Remote Hearings Unit, submit a written defense by mail, or use the online “one-click hearing” form for eligible cases. Any response is better than no response - defaulting locks in the maximum penalty. See our full OATH hearing guide for the step-by-step.
For both: Correct the condition first, then deal with the hearing. Showing up with a corrected condition and documentation is the single most effective thing you can do to reduce your penalty.
They're not the ones who never get violations. In this city, if you're doing enough work, violations happen. Bad luck, bad neighbors, an inspector having a bad day.
The contractors who keep their penalty costs low are the ones who know about complaints at their jobsites before an inspector shows up, track every permit expiration across their active sites, and show up to every hearing with documentation. They treat compliance like a jobsite safety meeting - not optional, not glamorous, but the thing that keeps the whole operation from going sideways.
This article is for informational purposes only and does not constitute legal advice. Penalty amounts are based on publicly available NYC penalty schedules and DOB enforcement data. Actual penalties vary based on hearing outcomes, violation circumstances, and correction status. Consult a qualified attorney for advice on specific violations.
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Run a free compliance report →A first-offense work without permit violation under Administrative Code 28-105.1 carries a penalty range of $2,500 to $10,000. The actual amount depends on the scope of work, occupancy type, and whether you correct the condition and appear at your OATH hearing. Defaulting on the hearing results in the full penalty plus additional fees and interest.
Yes. You can contest an ECB summons at an OATH hearing in person, by phone, by video, by mail, or through OATH's online form for eligible cases. Bring documentation showing the violation has been corrected - permits, photos, receipts, inspection reports. Contact OATH at 844-OATH-NYC (844-628-4692) to schedule your hearing.
ECB fines can be paid online through the NYC Department of Finance website, by mail, or in person. Immediately hazardous civil penalties are paid through DOB NOW's Express Cashier Payments system. Payment can be made by eCheck or credit card (2% service charge applies).
A DOB violation is a notice to correct - fix the condition, file a Certificate of Correction, and the violation gets dismissed. An ECB summons is a civil penalty that requires payment or an OATH hearing regardless of correction. A single incident can generate both.
You must respond by the hearing date printed on your summons. If the violation is eligible for a cure, you must submit an acceptable Certificate of Correction before the cure date listed on the summons. Missing both dates results in a default judgment at the maximum penalty.