All Brooklyn STRs must follow the NYC Noise Code. Hosts are liable for guest noise after 10 PM. Under Local Law 18/2022, noise complaints can trigger OSE deregistration.
Short-term rentals in Brooklyn operating legally under Local Law 18 of 2022 must comply with the full NYC Noise Code (NYC Admin Code Title 24) just like any other residence. Hosts are held responsible for guest conduct, including excessive noise that is plainly audible inside a neighboring unit during quiet hours (10 PM to 7 AM weekdays, 10 PM to 9 AM weekends). Because LL18 requires the host to be present during the rental (Class A dwellings, owner-occupied, max 2 guests), the host is expected to monitor and mitigate guest noise in real time. Noise complaints logged through 311 against a registered short-term rental generate a DEP inspection and can be cross-referenced by the Mayor's Office of Special Enforcement (OSE) when reviewing compliance. Repeat noise violations are grounds for revoking the STR registration and removing the listing from platforms. Unregistered listings (which constitute most pre-LL18 Brooklyn STRs) already violate LL18 and additional noise complaints accelerate enforcement.
Noise violation: $70 to $1,400 depending on duration and repeat status. OSE LL18 penalty for unregistered STR: up to $5,000 per listing. Platform booking penalty: $1,500 per illegal booking.
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