What is the residential decibel limit in Norwalk, CT?

Daytime limit: 55 dBA. Nighttime limit: 45 dBA. Decibel limits for residential zones are 55 dBA during the day and 45 dBA at night. Commercial zones have a 63 dBA limit for both day and night. Industrial zones are limited to 70 dBA during the day and 66 dBA at night. These limits were maintained with the December 2025 ordinance updates.

Who do I call for a noise complaint in Norwalk, CT?

For non-emergencies, contact the police at (203) 854-3000. For code violations, contact Code Enforcement at Not specified for noise complaints, but (203) 854-7760 for demolition permits..

Norwalk, CT Noise Ordinance

Quiet Hours: The ordinance defines "Nighttime Hours" as 8:00 PM to 7:00 AM Sunday evening through Friday morning, 8:00 PM Friday to 8:00 AM Saturday, and 8:00 PM Saturday to 9:00 AM Sunday morning. Saturday nighttime hours apply to state and federal holidays. "Daytime Hours" are 7:00 AM to 8:00 PM Monday through Friday, 8:00 AM to 8:00 PM on Saturday, and 9:00 AM to 8:00 PM on Sundays and federal/state holidays.

Residential Decibel Limit: 55 dBA (Day) / 45 dBA (Night)

Summary: Norwalk, CT's "City of Norwalk Noise Control Ordinance" aims to protect public health and welfare from excessive sound by setting specific decibel limits and quiet hours. Updates in December 2025 simplified enforcement, allowing officers to issue fines on first contact. The ordinance addresses various sources, including construction, amplified sound, and vehicle noise, with penalties for violations.

Local Noise Laws

Searching...