Chicago noise rules: quiet hours, limits and how to complain

At a glance

Quiet hours: 10 p.m. to 8 a.m. for amplified sound on private open space; 8 p.m. to 8 a.m. for other noise
Who to call: Call 911 while it's happening. Call 311 once it's over.
The law: Chicago Municipal Code ch. 8-32. Read the code

Checked against official sources on 2026-10-16.

Chicago’s noise rules are in Chapter 8-32 of the Municipal Code, which § 8-32-010 says may be called the Chicago Noise Ordinance. Most of it does not use decibel numbers for neighbor noise. It uses a plain-language test instead: whether a sound is louder than “average conversational level” at 100 feet.

The code defines that as a level at which normal, unamplified speech is clearly audible above the background (§ 8-32-020). So the question an officer asks is roughly: standing 100 feet away, is this louder than people talking?

Amplified music and speakers

Section 8-32-070 covers anything that makes or amplifies sound for communication or entertainment: speakers, stereos, instruments, bullhorns and PA systems.

On the public way (streets, sidewalks, alleys), it may not be louder than average conversational level at 100 feet or more from the source, at any hour.
On private open space, from 10 p.m. to 8 a.m., it may not be louder than average conversational level at 100 feet or more from the property line.

“Private open space” includes backyards, front yards, gangways, and buildings with windows or doors open to the outside (§ 8-32-020). So music inside an apartment with the windows open can count.

Permitted parades, athletic events, outdoor special events and public assemblies are exempt from 8 a.m. to 10 p.m. if they follow their permit.

Other noise at night

For noise sources that the chapter does not address specifically, § 8-32-150 sets a broader rule. From 8 p.m. to 8 a.m., no one may make noise on the public way or on private open space that is louder than average conversational level at 100 feet. For a party in a yard that is not about music, such as shouting or a generator, this is the section that applies.

Loading and unloading boxes, dumpsters, garbage cans and building materials between 10 p.m. and 7 a.m. is barred if it causes a “noise disturbance” (audible 600 feet or more from the source) in a residential district (§§ 8-32-020, 8-32-130).

Construction hours

Under § 8-32-140, no one may use powered mechanical equipment or tools for building, construction, repair or demolition between 8 p.m. and 8 a.m. within 600 feet of a residential building or hospital. Emergency work and authorized public improvements are exempt.

The code does not set different construction hours for weekends.

Barking dogs

Chapter 8-32 does not have a rule for animal noise. Animal complaints fall under separate parts of the code not covered here.

Who to call

The City of Chicago’s 311 FAQ draws a line that surprises some people. Call 311 when an incident has already happened and the person responsible has left. Call 911 when the incident is happening now and an officer needs to be there to resolve it, and the FAQ lists “quieting loud neighbors” as an example of a 911 call.

Chicago Police say 311 is the police non-emergency number, available 24 hours a day. Outside the Chicago area, the 311 FAQ gives 312-744-5000. You can stay anonymous when you call 311.

Penalties

Unless a section says otherwise, § 8-32-050 sets fines of $300 for a first offense, $500 for a second within a year, and $1,000 for a third or later offense within a year. The police superintendent may also order a compliance plan.

Construction outside allowed hours is fined more heavily under § 8-32-140(d): $1,000 to $2,500 for a first violation, $2,500 to $5,000 for a second within a year, and $5,000 to $10,000 for a third. Each day is a separate offense.

Section 8-32-050(d) also says nothing in the chapter blocks a private lawsuit for a common-law nuisance.

Keeping a record

The conversational-level test is about what someone hears, so a record of times and durations is often more useful than a decibel number. The Noisy Neighbor iPhone app logs each incident with the time, how long it lasted, estimated sound levels and any low-frequency rumble, and it can turn a case into a PDF report or a complaint letter for your landlord or condo board. The readings are estimates from your phone’s microphone, so use them to show a pattern rather than as an official measurement.

Sources

Last checked 2026-10-16. Laws change; check the official code before acting. Not legal advice.