Yes, in most cases you can change the locks on your Williamsburg apartment - but there are rules. New York City law gives tenants real protections around lock access, key handover, and landlord entry. It also puts some limits on what you can do without permission. Understanding both sides keeps you legal and keeps your home secure.
What does New York law actually say about tenants changing their locks?
New York Multiple Dwelling Law Section 51-c gives tenants in buildings with three or more units the right to change their own cylinder locks. You do not need your landlord's permission to do this. That right exists whether you are a renter in a prewar walk-up in Bed-Stuy, a loft in East Williamsburg, or a brownstone apartment in Greenpoint.
The catch is the duplicate key. Within 30 days of changing your lock, you are required to provide your landlord or building super with a copy of the new key. This is not optional. A landlord has a legitimate need for emergency access - think fire, flood, or a gas line issue. Denying that access puts you in violation of your lease and potentially of the law.
There are two practical situations where this rule plays out differently. If you are rekeying after a move-in because you are not sure how many copies of the old key are floating around, that is completely reasonable - just hand over a new duplicate. If you are changing locks because of a roommate dispute or to keep out an ex who had a key, the same rule applies: new lock, new key to the landlord, no exceptions.
One thing that is off-limits: adding a second lock that the landlord cannot access at all, or modifying a door in a way that interferes with building systems. Deadbolts are fine. A Medeco M3 or a Schlage B60N are solid, legal choices that a locksmith can install in under an hour. A chain or a bar lock that prevents all landlord entry during a real emergency crosses a line.
What are a landlord's limits when it comes to your locks and your access?
A landlord in Brooklyn cannot change your locks for any reason without a court order. Full stop. It does not matter if you are behind on rent, if there is a lease dispute, or if the building is being converted. A lockout carried out without going through the courts is called an illegal lockout, and it is a serious violation under NYC law.
If you arrive home to find your key no longer works and you have not been served with a legal eviction, call 911. Then call 311 to file a complaint. The city takes illegal lockouts seriously. You have the right to have access restored immediately.
The same protection applies at lease renewal. A landlord cannot refuse to hand over keys or change the locks as leverage during a lease negotiation. Key handover at move-in is required, and any attempt to withhold it as a tactic is an illegal lockout from day one.
Landlords do have a right to enter with notice - typically 24 hours in non-emergency situations. A super entering your Williamsburg apartment to check the boiler is not a privacy violation if proper notice was given. An unannounced entry to inspect or pressure you is a different matter and falls under your right to privacy as a tenant.
If your buzzer is not working or your mailbox lock is broken and your landlord is ignoring repeated requests, that is a habitability issue. A broken exterior door lock or a nonfunctional intercom affects building security and qualifies for a 311 complaint. In serious cases, repair and deduct remedies may apply - meaning you can pay for the repair yourself and deduct the cost from rent, following specific legal steps.
Which locks are actually worth installing in a Brooklyn rental apartment?
Most prewar walk-ups in Williamsburg and Bushwick come with basic pin tumbler cylinders that are decades old. Rekeying them costs less than a full replacement and solves the problem of old keys being out there from previous tenants. A rekey on a standard Kwikset or Schlage cylinder runs in the range of $50 to $100 depending on the lock.
If you want a meaningful upgrade, the Medeco Maxum deadbolt is one of the best options for a rental. The key control is serious - duplicate keys cannot be cut without authorization, so you do not have to worry about a previous roommate making copies. The Mul-T-Lock MT5+ is another strong choice, common in buildings across Downtown Brooklyn and Bed-Stuy that have had security concerns.
For tenants who want keyless entry without drilling new holes, the Schlage Encode Plus is a smart lock that installs into a standard deadbolt prep and works with Apple Home Key. It is renter-friendly because it uses the existing door prep and can be swapped back out when you move. Just remember - if you go keyless, you still need to provide your landlord with a backup PIN or physical key as the law requires.
Subletting adds another layer. If you are subletting your apartment in Williamsburg, do not hand your subtenant a key without thinking through what happens when they leave. Having the cylinder rekeyed between occupants is inexpensive and gives you control over who has access at any point.
If you have questions about what makes sense for your specific door or building setup, stop by B & G Locksmith at 210 Robeling St in Williamsburg. We cut keys while you wait at the hardware counter, stock cylinders and deadbolts off the shelf, and can walk you through what is legal and what will actually hold up. You can also call us directly at (347) 699-9268 to talk through your situation before you commit to anything.
Frequently asked questions
Can my landlord change my locks without telling me in Brooklyn?
No. A landlord who changes your locks without a court order is committing an illegal lockout under NYC law. Call 911, then 311 to file a complaint. You have the right to immediate access restored.
Do I have to give my landlord a copy of my new key in Williamsburg?
Yes. NYC law requires tenants to provide landlords with a duplicate key upon request. You can have one cut at B & G Hardware at 210 Robeling St while you wait - no appointment needed.
What should I do if my lock is broken and my landlord won't fix it?
Document everything in writing. If the landlord still won't act, you can file a 311 complaint or pursue repair and deduct remedies under NYC housing law. A broken lock is a habitability issue - it qualifies as an emergency repair in most cases.
Need a locksmith in Williamsburg? Walk in or call - we are on the corner.
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