In addition to the Notification Form, owners of apartments subject to rent stabilization or rent control must
file electronically the DHCR Form RN–19C INDIVIDUAL APARTMENT IMPROVEMENT: TENANT’S
INFORMED CONSENT for IAIs made to occupied apartments. If there was a tenant in occupancy of the
apartment when the improvements were installed, then no rent increase is permitted without the tenant’s
written informed consent to the rent increase. For IAIs installed in occupied apartments prior to the February
3, 2020 release of DHCR form RN-19C, owners can substitute the tenant signed consent agreement that they
executed at that time, which had been previously required by law. Form RN-19C must be executed and filed
with DHCR in English. Copies of the form are available for tenant’s review in seven different languages at
www.hcr.ny.gov. When the IAI is installed during a vacancy, the Tenant’s Informed Consent Form is not
required.
For rent stabilized apartments, any increase based on an IAI that was previously reported to DHCR in the
Notification Form and/or Tenant’s Informed Consent Form must also be reported in the next occurring annual
registration filing for the subject apartment. In addition, if the IAI items are installed during a vacancy,
the total costs are to be included in the rent calculations provided by an owner in the NYC Lease Rider or
ETPA Standard Lease Addenda. Supporting documentation such as invoices and bills, which does not have
to be electronically provided to DHCR, may be requested by the tenant from the owner. For rent controlled
Revised (2/20) OB-2016-1 Page 2 of 7
apartments, any increase based on an IAI that was previously reported to DHCR in the forms above must also
be reported in the appropriate Maximum Base Rent reporting forms.