Can you Airbnb in Mamaroneck (Town), NY?

What the rules say in Mamaroneck (Town)

• Town Code sec. 240-10 (Conformance required): "Any use not specifically permitted by this chapter is prohibited." No zoning district in the unincorporated town lists short-term rental, tourist home, bed-and-breakfast, hotel or motel as a permitted, special or accessory use (checked Article IV residence districts and Article V business/industrial districts).
• Sec. 240-4 defines DWELLING to exclude "a motel, hotel, rooming house or tourist home," and HOME OCCUPATION expressly excludes operating a tourist home or rooming house from a dwelling.
• Sec. 240-21C(2): the only room-rental allowance in residence districts is keeping "not more than two nontransient persons as roomers or boarders" with no sign and no separate cooking facilities, so renting rooms to transient (short-stay) guests is outside the permitted accessory use.
• There is no STR registration, rental permit, or transient-occupancy chapter anywhere in the town code; eCode360 full-text searches for "short-term rental" and "transient" return no STR provision, and the four uncodified 2026 local laws (LL-1-2026 through LL-4-2026) are unrelated to rentals.
• Whole-home rental to a single household under 30 nights is not squarely addressed by the code; the prohibition rests on the catch-all permissive-use clause plus the transiency exclusions, and 2020 press reporting indicates the town had discussed but never adopted STR rules and saw little enforcement, so treat this as an implicit bar and confirm with the Building Department before operating.
• This applies only to the unincorporated Town of Mamaroneck; the Village of Mamaroneck and Village of Larchmont, which lie within the town's boundaries, have their own separate zoning codes.
• Chapter 137 (Motels) regulates operation of motels (register, management duties) but does not create any path for short-term rental of dwellings.

Sources: Town of Mamaroneck Code sec. 240-10, Conformance required (Ch. 240 Zoning, Art. III); Town of Mamaroneck Code sec. 240-4, Zoning definitions (DWELLING, FAMILY, MOTEL, ROOMING HOUSE, HOME OCCUPATION); Town of Mamaroneck Code Ch. 240 Art. IV, Residence Districts: Permitted Uses (incl. sec. 240-21C(2) nontransient roomers); Town of Mamaroneck Code Ch. 240 Art. V, Business and Industrial Districts: Permitted Uses; Town of Mamaroneck Code Ch. 137, Motels; Town of Mamaroneck Code, full table of contents (eCode360, code current through 2025-12-03); Town of Mamaroneck eCode360 New Laws page (LL-1-2026 to LL-4-2026, none STR-related); The Real Deal (Mar 2020): Mamaroneck discussed but never adopted STR zoning changes; minimal complaints/enforcement. Last reviewed 2026-07.