- Work without a permit (violation code B101) is the #1 DOB violation — accounting for 41% of all DOB violations in 2024
- Fines reach up to $10,000 for 1–2 family homes and $15,000 for all other building types
- Self-reporting before a violation is issued can significantly reduce penalties
- There are two resolution paths: legalize the work (after-the-fact permit) or revert to prior legal condition
- Both paths require a permit, DOB inspection, Certificate of Correction, and an OATH hearing appearance
- Correcting the violation before your first OATH hearing date may reduce the penalty further
Why Is B101 the Most Common DOB Violation?
Violation code B101 — work without a permit — is the single most issued DOB violation in New York City. In 2024 alone it accounted for 41% of all DOB violations citywide. The reason is straightforward: owners, contractors, and tenants routinely start renovation or construction work without securing the required permits first. The work may be minor or extensive, but if it requires a permit under the NYC Construction Codes or Zoning Resolution and none was pulled, a B101 violation can follow.
Common triggers include kitchen or bathroom gut renovations, structural work, electrical upgrades, window replacements in landmark districts, changes of use, and basement or attic conversions. Neighbor complaints and routine DOB inspections are the most frequent sources of discovery.
How Much Are B101 Violation Fines in NYC?
| Scenario | Fine / Consequence |
|---|---|
| Self-reported before violation is issued (1–2 family home) | Reduced penalty — often significantly lower than standard fine |
| Standard B101 violation — 1–2 family home | Up to $10,000 |
| Standard B101 violation — all other buildings | Up to $15,000 |
| Violation corrected before first OATH hearing date | Potential reduction in penalty at hearing |
| Violation ignored — no correction, missed OATH hearing | Default judgment, maximum fine, potential Stop Work Order, property lien |
| Repeated or egregious unpermitted work | Cumulative fines, enhanced enforcement, referral to ECB |
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What Are the Two Ways to Resolve a B101 Violation?
| Resolution Path | What It Involves | When to Use It |
|---|---|---|
| Legalize the work (after-the-fact permit) | Hire a licensed architect or engineer to file plans, obtain a permit, pass DOB inspection, file Certificate of Correction, appear at OATH | Work complies with current codes and zoning; you want to keep the improvements |
| Revert to prior legal condition | Restore the space to its pre-work state, obtain permit to do so, pass inspection, file Certificate of Correction, appear at OATH | Work cannot be legalized (zoning, code non-compliance); cost of legalization is prohibitive |
How Do You Resolve a B101 Violation?
| Step | Action | Notes |
|---|---|---|
| 1 | Review the violation on DOB NOW and confirm details | Note the OATH hearing date — this is your deadline to correct before the hearing |
| 2 | Engage a licensed architect or engineer | Required to file plans and represent you before DOB for most projects |
| 3 | Choose resolution path: legalize or revert | Your architect will advise on feasibility and cost of each option |
| 4 | File permit application via DOB NOW: Build | Include plans, forms, and all required documentation |
| 5 | Complete the work and pass DOB inspection | Inspector signs off that work meets approved plans and code |
| 6 | File Certificate of Correction with DOB | Documents that the condition cited in the violation has been resolved |
| 7 | Appear at OATH hearing (required for B101) | Bring proof of correction; correction prior to hearing may reduce the imposed penalty |
Frequently Asked Questions
What is violation code B101?
B101 is the NYC DOB violation code for work performed without a required permit. It is the most frequently issued building violation in New York City, representing 41% of all DOB violations in 2024. It applies whenever construction, renovation, or alteration work that requires a permit under the NYC Construction Codes or Zoning Resolution is performed before a permit is obtained.
Can I self-report unpermitted work in NYC?
Yes. Proactively disclosing unpermitted work to DOB before a violation is formally issued generally results in reduced penalties. This is one of the strongest incentives for acting quickly if you discover that work was done on your property without proper permits — whether by a prior owner, contractor, or tenant.
What happens if I ignore a B101 violation?
Ignoring a B101 violation leads to a default judgment at the OATH hearing, which means the maximum fine is automatically imposed. Unpaid fines become liens against the property. The violation remains open on DOB records indefinitely, which surfaces during title searches and can block refinancing, sale, or future permits. DOB may also issue Stop Work Orders for ongoing projects.
How long does it take to resolve a work without permit violation?
Timeline varies significantly based on the complexity of the work, permit review times, and inspection scheduling. Simple jobs on 1–2 family homes may resolve in 4–8 weeks. Complex projects or those requiring plan examination can take several months. Engaging an experienced expediter accelerates the process by navigating DOB requirements and avoiding common filing errors.
Do I need a lawyer to resolve a B101 violation?
A lawyer is not strictly required, but a licensed architect or engineer is needed to file plans and obtain the permit. Many property owners also work with a DOB expediter who coordinates the technical, administrative, and hearing-related components of the resolution process. For complex situations or large potential fines, an attorney familiar with OATH proceedings can be valuable.
Dealing with a work without permit violation — or want to get ahead of one? All Boro Expediter handles the full resolution process: permit filing, DOB coordination, inspection scheduling, and OATH hearing preparation. Contact us today to discuss your situation.
