As a landlord in New York, you expect your tenant to use the apartment as a place to live. But what happens when a tenant starts running an unapproved business from the apartment? This can create serious problems. It may disturb other tenants, damage the unit, break the lease, or lead to city violations. A New York City landlord lawyer can help you understand what steps to take before the issue gets worse.
Not Every Home Business Is Illegal
Some tenants are allowed to work from home. New York City allows certain home businesses, often called home occupations. However, there are limits. In many cases, the business cannot take up more than 25 percent of the home, up to 500 square feet. Outside employees usually cannot come to the apartment to work. A quiet home office is different from a busy salon, repair shop, store, or storage space.
Watch for Warning Signs
If you think a tenant is running an illegal business, start by looking at what is actually happening. Do not just rely on guesses. Common warning signs include:
- Heavy foot traffic
- Large or frequent deliveries
- Customers coming in and out
- Loud tools, machines, or music
- Strong odors, smoke, or fumes
- Commercial signs or online ads using the apartment address
- Extra locks, walls, beds, or rooms added without approval
- Trash, boxes, or supplies piling up
- Complaints from neighbors or building staff
Keep notes with dates and times. Save emails, texts, pictures, video clips, and written complaints if you have them.
Review the Lease
Most residential leases say the apartment may only be used as a private home. Many leases also ban illegal activity, nuisance behavior, unsafe conduct, or changes to the unit without written permission.
Before sending any notice, read the lease carefully. Some leases may allow limited home office use, while others are stricter. The issue is often whether the tenant has crossed the line from working at home to operating a business from the apartment.
Understand the Risk to the Property Owner
Illegal business use can cause problems with the New York City Department of Buildings (DOB). The DOB may inspect complaints about illegal use, illegal occupancy, or unsafe changes to a building.
If the tenant has changed the layout, added rooms, used the space for storage, or created fire risks, the situation may become more serious. In some cases, illegal commercial or manufacturing use may lead to violations, hearings, fines, or Padlock Unit action.
This is why landlords should not ignore the issue. Even if the tenant caused the problem, the property owner may still have to deal with city enforcement.
Do Not Try to Force the Tenant Out Yourself
Even if the tenant is breaking the lease, landlords should not change the locks, shut off utilities, remove property, or block access to the apartment. These actions can create legal trouble for the landlord.
Instead, follow the proper legal process. This may involve a notice to cure, a notice of termination, or a housing court case. A notice to cure gives the tenant a chance to stop the illegal business or fix the lease violation.
A tenant running an illegal business can upset neighbors, create safety risks, damage the unit, and bring unwanted attention from the city. Landlords who suspect their tenant is running an illegal business from their unit should gather proof, review the lease, and act through the proper legal steps.