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S 10509

Relates to expanding the definition of interim multiple dwelling to provide protections for certain residents

2025 Regular Session Introduced by Erik Bottcher

Expands interim multiple dwelling protections to a new midtown Manhattan area for 2015–2016 occupancy, preserving protections even if unit counts drop.

REFERRED TO HOUSING, CONSTRUCTION AND COMMUNITY DEVELOPMENT
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Bill Summary · S 10509

Overview

Bill: S 10509 (New York, 2025-2026)
Introduced by: Sen. Bottcher
Committee: Housing, Construction and Community Development
Effective date: Immediate

Purpose: Expand the definition of “interim multiple dwelling” to include a specific set of midtown Manhattan blocks and preserve protections for certain residents in those buildings. The bill modifies the scope and geographic area of interim protections under the Multiple Dwelling Law (MDL).

What the bill would do

  • Amends MDL, subdivision 6, paragraph (c) of section 281 (as added by ch. 41 of 2019).
  • Expands the geographic area for the interim multiple dwelling designation to include:
    • North of West 24th Street
    • South of West 27th Street
    • West of Tenth Avenue
    • East of Eleventh Avenue
    • Area: in a city with more than 1 million people (i.e., New York City)
  • Applies to buildings (or portions) that were occupied for residential purposes as the residence or home of two or more independently living families for a period of twelve consecutive months during January 1, 2015 through December 31, 2016.
  • Maintains all other conditions and limitations of the subdivision, except for the unit-count requirement.
  • Retains protections for remaining qualified residential occupants even if:
    • The number of occupied residential units decreases after meeting the twelve-month period.
    • There is a decrease in occupied residential units during or prior to the twelve-month period, provided:
    • Remaining occupants’ continuous residential use began before December 31, 1995
    • There were three or more independently living families for any twelve consecutive months between December 31, 1995 and December 31, 2016.
  • Non-residential space in an interim dwelling as of the effective date:
    • Shall be offered for residential use only after obtaining a residential certificate of occupancy for such space.
    • Such space shall be exempt from this article, even if part of the building is designated as an interim multiple dwelling.

Who is affected

  • Buildings (or portions) within the specified geographic box in Manhattan that previously could qualify as interim multiple dwellings under the MDL and meet the historic occupancy criteria (three or more independent families for a 12-month period within 2015–2016).
  • Current and prospective residents of these buildings who qualify for interim protections under the MDL (e.g., protections related to occupancy status, conversion, and related rights).
  • Owners or developers of mixed-use buildings containing non-residential space that qualifies for temporary residential conversion, subject to a certificate of occupancy and the residential exemption for such space.

Key provisions and changes

  • Geographic expansion: Adds a defined midtown Manhattan corridor to the interim multiple dwelling designation.
  • Occupancy window: Keeps the original 2015–2016 12-month period criterion for occupancy as the basis for interim protections.
  • Stability of protections: Ensures that reductions in occupied units do not automatically remove protections for remaining qualifying occupants, and preserves protections for occupants who began continuous residential use before 1995 if the three-family criterion was met during 1995–2016.
  • Non-residential space treatment: Requires conversion of non-residential space to residential use only after a residential certificate of occupancy is obtained; the space remains exempt from the MDL if converted, even if part of an interim dwelling.
  • Immediate effectiveness: The act takes effect immediately upon passage.

Procedural and timeline aspects

  • The bill would take effect immediately upon enactment.
  • It is currently referred to the Senate committee on Housing, Construction and Community Development.
  • If enacted, the expanded interim dwelling protections would apply to eligible properties within the newly described geographic area and timeframes.

Practical impact and considerations

  • Potentially increases the number of properties and residents protected under interim multiple dwelling provisions in Manhattan’s midtown area.
  • Provides greater certainty for residents in qualifying buildings amid potential conversions or reductions in occupied units.
  • The residential-use covenant for non-residential space adds a compliance step for property owners seeking to repurpose space.

Note: This summary focuses on substantive provisions and practical impact. For legal interpretation or implications, consult the full bill text and current MDL guidance.

Compiled from official sources — confirm details with the bill’s official record.

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