Who We Are

CATHnyc is a city-wide coalition of community organizations and legal service providers fighting against the displacement of low-income tenants through organizing and by advocating for stronger laws – like the Certificate of No Harassment (CONH) – that prevent harassment and ensure tenants can stay in their homes.

Coalition Members

Association for Neighborhood and Housing Development

Communities Resist

Goddard Riverside Law Project

Housing Conservation Coordinators, Inc.

IMPACCT Brooklyn

Metropolitan Council on Housing

Northern Manhattan Improvement Corporation

RiseBoro LEAP

TakeRoot Justice

If you are a tenant looking for support in your building, jump to the Resources section.

The Cycle of Displacement

Landlords often use harassment and other illegal tactics to displace tenants, especially in rent-stabilized apartments, since pushing long-term tenants out gives landlords the opportunity to renovate apartments, raise rents, and increase their profits by renting to higher-paying tenants. This process ends up displacing long-term tenants – who are disproportionally low-income people of color – from their homes across New York City.

Amidst the coronavirus pandemic, tenant harassment and displacement persist. CATHnyc is fighting to stop tenant harassment and we need your help to raise awareness around this issue. We want to hear your stories! Click here to share your story with us.

CONH Pilot Program Implementation

CATHnyc is currently focused on implementation of the Certification of No Harassment (CONH) Pilot Program. Through advocacy, education, and organizing, CATHnyc is working in buildings and communities throughout New York City to ensure the success of this important program. Since the CONH Pilot Program went into effect, we’ve trained nearly 100 organizers and tenant leaders. We’re also working closely with community boards, elected officials, and government agencies to track how the program is doing and identify ways to expand, improve, and make the program permanent.

What is the Certificate of No Harassment (CONH) Pilot Program?

The CONH Pilot Program is intended to disincentivize tenant harassment and protect affordable housing by requiring landlords who want to make significant renovations in their buildings get a CONH from the NYC Office of Housing Preservation and Development (HPD) before certain construction permits through the NYC Department of Buildings (DOB) are approved.

This three-year pilot program went into effect on September 28, 2018.

You can learn more about how CONH works by downloading a copy of Is Your Landlord Harassing You or Your Neighbors? This illustrated, fold-out guide was created in collaboration with the Center for Urban Pedagogy, and it is also available in Spanish.

You can also read more about the CONH Pilot Program by vising the HPD website or by viewing these resources:


  • 2016: Community organizations and legal services providers come together to form CATHnyc.
  • 2017: CATHnyc wins a huge victory with the passage of the CONH legislation, creating a three-year pilot program.
  • 2018: The CONH Pilot Program goes into effect.
  • 2021: The CONH Pilot Program expires. New York City Council can decide to make the Program permanent and expand it citywide.

CONH Pilot Program Buildings

More than 1,000 buildings – or 25,000+ apartments – across New York City are part of the CONH Pilot Program. These buildings have six or more apartments and:

  • Are located within one of the twelve designated community districts (shown on the map below in red) and were determined by HPD to have "significant distress", 
  • Have had a full vacate order issued by HPD or DOB,
  • Have been in the Alternative Enforcement Program, or
  • Have had a determination by the New York State Division of Homes and Community Renewal (HCR) or a court that harassment occurred.

Click on the red-shaded community districts to see which CATHnyc member you should contact about how to fight back against harassment. You can also use the tools on the right to filter the map by either landlords or companies who have the most buildings in the CONH Pilot Program.

View Full Map

View the CONH Pilot Program Building List managed by CATHnyc

View HPD’s CONH Pilot Program Building List through NYC OpenData

You can also access building-level displacement data using our Displacement Alert Project (DAP) Portal.

For Tenants

Tenant harassment is a common practice in New York City. You may have experienced tenant harassment if your landlord or someone they've hired has:

  • Threatened you or used force against you
  • Misled you about your building or tenancy status
  • Stopped providing essential services, like heat and hot water
  • Made repeated, intimidating, or unwanted buyout offers

For more examples of what tenant harassment looks like, see this resource: How to Spot Tenant Harassment

Tenants who experience harassment should keep track of what happens! That way, they’ll have proof to use in court or in an HPD investigation. Tenants can use this Harassment Log to track the harassment they’re experiencing.

How Can You Fight Back?

You’re not alone – If you’re experiencing tenant harassment, your neighbors probably are too. Talk to your neighbors and organize! For help with forming a tenant association and fighting back against tenant harassment in your building, contact a CATHnyc member in your neighborhood:


Communities Resist

Metropolitan Council on Housing

TakeRoot Justice


IMPACCT Brooklyn

RiseBoro LEAP


Goddard Riverside Law Project

Housing Conservation Coordinators, Inc.

Northern Manhattan Improvement Corporation

The Bronx

Northern Manhattan Improvement Corporation


What can you do to get your building added to the CONH Pilot Program? The surest way to get your building added to the Pilot Program Building List is by proving – in court or with the New York State HCR – that harassment has happened in your building. 

If your building is included in the CONH Pilot Program and you can prove that harassment has happened, you can prevent your landlord from getting permits to renovate your building.

Landlords may also try to avoid applying for a CONH by doing construction without a permit. This is likely dangerous and illegal! If you see construction happening in your building without the required permits, report it by calling 311.  For more information on how to report a building construction problem, see the NYC 311 website.

For Organizers

If we want to stop tenant harassment, we must change landlord behavior! CONH punishes landlords for harassing tenants and has the potential to prevent tenant harassment in the future – But this program is only as effective as we make it. For more information about CATHnyc, the CONH Pilot Program, and how to fight harassment through tenant organizing, check out these resources:

CATHnyc is supporting tenant organizing, coordinating advocacy efforts with the City, and laying the groundwork for a campaign to expand and strengthen CONH. Join us!

For Attorneys

Legal services providers play a crucial role in the fight against tenant harassment and making the CONH Pilot Program a success! CATHnyc won significant changes to the legal definition of harassment, which was intended to make it much easier for tenants to prove they experienced harassment. Check out the current legal definition of harassment here: What counts as “harassment” in the Administrative Code?

We also fought to make sure landlords feel the consequences of harassing tenants by automatically including buildings in the CONH Pilot Program if there is an HCR or court finding of harassment, and increasing the options for tenant compensation.

We need attorneys to work with CATHnyc to bring and win harassment cases! Join us!

Connect With Us!

Follow us on Twitter and read our #FacesOfDisplacement stories on Instagram.

To join CATHnyc, arrange a training, or learn more about our campaigns contact Malika Conner.

Tenant Harassment Should Not Pay

An Evaluation of the Certificate of No Harassment Pilot Program

The Coalition Against Tenant Harassment (CATHnyc) has released a new report - Tenant Harassment Should Not Pay: An Evaluation of the Certificate of No Harassment Pilot Program - that provides a comprehensive review of the Certificate of No Harassment (CONH) Pilot Program’s impacts and shortcomings. The results indicate clearly that CONH has the potential to be an effective tool in stopping tenant harassment – to achieve its intended impact, it will need to be both expanded and adjusted.

Click here to view the full report.
Click here to download the Executive Summary.
Click here to download our Full Recommendations.

News & Media

Press Release
October 21, 2021
ANHD and CATHnyc Applaud the Renewal of the Certificate of No Harassment (CONH) Program
September 13, 2021
CATHnyc’s Research Shows Oversight of Tenant Harassment is Insufficient