Noise Ordinances in Greenwich, CT (2026)
4 verified noise ordinances for Greenwich, Connecticut, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Greenwich defines nighttime as 10:01 p.m. to 6:59 a.m. and, within a slightly wider curfew, bars running power saws, drills, sanders, grinders and lawn or garden tools loud enough to break the chapter's decibel limits. The general property-line noise standards also drop from 55 dBA to 45 dBA into residential property once nighttime begins.
Greenwich Nighttime Noise Curfew
Some RestrictionsGreenwich Code of Ordinances §§ 6B-2(o), 6B-6(e)
(o)Nighttime is 10:01 p.m. to 6:59 a.m. local time. ... (e)Domestic power tools/equipment.(1)No person shall operate or permit the operation of any mechanically powered saw, drill, sander, grinder, lawn or garden tool or other tool between the hours of 9:00 p.m. and 8:00 a.m. the following day such that the sound therefrom exceeds the limits set forth in Section 6B-5.(2)Section 6B-6(e) does not...
Construction Hours
Construction, drilling and demolition work that exceeds Greenwich's noise limits is barred on weekdays from 6:00 p.m. to 7:00 a.m., before 9:00 a.m. or after 5:00 p.m. on Saturdays, and at any time Sundays or holidays. A separate exemption lets ordinary construction noise run 7:00 a.m. to 6:00 p.m. weekdays and 9:00 a.m. to 5:00 p.m. Saturdays without violating the chapter.
Greenwich Construction Noise Hours
Some RestrictionsGreenwich Code of Ordinances §§ 6B-6(a), 6B-8(c)
(a)Construction.(1)No person shall operate or permit the operation of any tools or equipment used in construction, drilling or demolition work between the hours of 6:00 p.m. and 7:00 a.m. the following day on weekdays and before 9:00 a.m. and after 5:00 p.m. on Saturdays or at any time on Sundays or holidays such that the sound therefrom exceeds the limits set forth in Section 6B-5. ... (c)Nois...
Leaf Blower Rules
Leaf blowers in Greenwich cannot run before 8:00 a.m. or after 6:00 p.m. on weekdays, or outside 9:00 a.m. to 3:00 p.m. on weekends and holidays, and gas blowers are barred entirely for commercial use in residential zones on Sundays. Gasoline-powered blowers also cannot run in residential zones from the Friday before Memorial Day through September 30, with a later end date for parcels of two acres or more.
Greenwich Leaf Blower Hours and Limits
Significant RestrictionsGreenwich Code of Ordinances § 6B-6(e)(3)-(6)
(3)No person shall operate or permit the operation of any leaf blower between 6:00 p.m. and 8:00 a.m. Monday through Friday and between 3:00 p.m. and 9:00 a.m. Saturday, Sunday and Holidays.(4)Commercial use of gasoline-powered leaf blowers on premises in residential zones is prohibited on Sundays.(5)Commercial and/or residential property parcels of one-quarter (¼) acre or less may only be serv...
Decibel Limits
Greenwich caps outdoor noise at fixed decibel levels measured beyond the property line, with separate ceilings for daytime and nighttime and for residential versus business emitters. A residential source may not exceed 55 dBA into a business or residential zone by day, dropping to 45 dBA at night; a business source is held to 62 dBA between businesses and 45 dBA into residential property at night.
Greenwich Noise Decibel Limits by Zone
Some RestrictionsGreenwich Code of Ordinances § 6B-5(c)
(c)Noise level standards.(1)No person in a residential zone shall emit noise, except impulses, beyond the property lines of his/her premises exceeding the levels stated herein: Emitter's Zone Receptor's Zone Business Residential/Day Residential/Night Residential 55 dBA 55 dBA 45 dBA ... (2)No person in a business zone shall emit noise, except impulses, beyond the property lines of his/her premi...