NYC Illegal Basement Apartment Help

Did you buy a NYC house with an illegal basement apartment?

If you got a 311 complaint, a Notice to Inspect, or a Department of Buildings (DOB) violation, you are not stuck. There is a process — and we will walk you through every step of it.

How it usually goes

It starts small — then escalates fast

This is the sequence most NYC homeowners go through. If any of it sounds like your week, you are in the right place.

  1. Homeowner reading a notice outside his building
    It startsA 311 complaint you never saw coming.
  2. Homeowner reading a NYC Buildings notice at his table
    ThenA Notice to Inspect — the DOB wants inside.
  3. A below-grade basement apartment entrance on a NYC brownstone
    The problemThe basement apartment was never legal.
  4. Homeowner on the phone getting legal help
    The turnOne call — and finally a plan.

What comes next

You will not be guessing your way through this

From the first consultation, you will understand the violation, the deadlines, and the path to legalization or correction.

A homeowner reviewing violation paperwork with attorneys at Nacmias Law Firm

Tell us what you received

An attorney reviews every submission and calls you back — usually the same day.

By providing your phone number you consent to be contacted by Nacmias Law Firm about your inquiry. Submitting this form does not create an attorney-client relationship.

Free 15-minute consult. No sales pitch. An attorney calls you back the same business day.

Here is what actually happens

A DOB violation follows a process — not a dead end

Knowing the four stages ahead of time is the difference between panic and a plan.

1

Notice of Violation

The DOB inspector issues an NOV describing the violation, the required remedy, and a hearing date.

Upon inspection

2

Correction Period

You have a window to correct the condition before the hearing — its length depends on the violation class.

Immediate or 60 days

3

The OATH Hearing

OATH is the city’s hearings tribunal — where your violation is actually decided. The hearing sets the penalty and whether the violation stands.

Scheduled date

4

Resolution

The matter closes through a Certificate of Correction, penalty payment, or an appeal where appropriate.

Varies by case

Want the detail? Read our full DOB violation guide.

A below-grade basement apartment entrance on a NYC brownstone

And what about the tenant in the basement?

This is the question that keeps homeowners up at night. You inherited a tenant living in a unit the city says was never legal — and you are not sure if you can collect rent, ask them to leave, or whether doing either creates a new problem.

Here is what matters: an illegal unit changes a tenant’s rights, and there are things you should not do on your own — changing locks, shutting utilities, or pressuring a tenant out can turn one problem into several.

Know this going in

If the city deems the basement unsafe, the DOB or HPD can issue a Vacate Order — a directive that the unit be emptied and not occupied. That puts the timeline in the city’s hands, not yours. Knowing whether your property is at that risk is one of the first things we check.

We will look at your specific situation and tell you exactly what you can do, what you cannot, and the order to do it in — so you protect yourself instead of stepping into a bigger mess.

Why homeowners call us

We do this every week

NYC buildings law is what we do

DOB and OATH violations across all five boroughs — not a side practice.

Certificates of Correction

We prepare and file the DOB paperwork that closes violations — routinely.

We move on your timeline

Missed deadlines cost the most. We help you act before the hearing, not after.

Straight answers

Questions homeowners ask us first

You did not create this problem. You do not have to solve it alone.

A free 15-minute case review tells you exactly where you stand — the deadline, your options, and what to send us. Picking up the phone is the easiest part.

Attorney Advertising. Prior results do not guarantee a similar outcome. The information on this page is general and not legal advice; contacting Nacmias Law Firm does not create an attorney-client relationship.

Bought a NYC House With an Illegal Basement Apartment? | Nacmias Law Firm