NY Multiple Dwelling Law — Jurisdictional Applicability (Cities ≥325,000) (NY)

Tracked preemption from the New York overlay bundle.

Overview

Effective
1929-01-01
Sunset
Authority
state
Scope
state:NY

Trigger predicate

When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.

OR
  • city.population 325000
  • city.is_mdl_jurisdiction == True

Preempted fields

1 field on the base district schema is rewritten when the trigger fires.

FieldOpValueNote
base_districts[category=res_mf].requires_mdl_complianceoverrideTrueMDL applies generally to cities ≥325,000 population plus certain others (NYC, Buffalo, Rochester in 2026). Sets state minimum standards for multiple-dwelling habitability and use.

Citation

Authority source
NY Multiple Dwelling Law
§ MDL Article 1
https://www.nyc.gov/assets/buildings/pdf/MultipleDwellingLaw.pdf

Research notes

MDL sets general habitability/use standards for multiple dwellings in covered cities. Scope is informational — MDL compliance is a state-law floor, not a direct zoning override of base district fields. In 2026 applies to NYC, Buffalo, Rochester.