Knollwood, IL

Lake County bans amplified sound in unincorporated areas that carries 100 feet from its source or exceeds 70 dB(A) at a neighboring residential property line, covering outdoor music…

In unincorporated Lake County, car stereos and sound systems can't be heard 100+ feet from the vehicle or exceed 70 dB(A) at a neighboring residential property line.

Lake County Code § 94.07(B) bars construction, repair, remodeling, lawn mowing, and power- or non-power-tool noise audible 100 feet or more from the property line between 9:00 p.m. and…

Lake County bans owners from letting a dog bark or howl in a way a reasonable person would consider a disturbance of the peace, expressly including excessive or habitual barking, under…

Unincorporated Lake County caps neighboring sound amplification at 70 dB(A) measured at the residential property line, under the county's public nuisance ordinance.

Unincorporated Lake County allows hens on residential lots of 10,000+ sq ft, with headcount tied to lot size and roosters banned outright.

In unincorporated Lake County, veterinary clinics are a permitted use by right in the Agricultural, Recreational Commercial, General Commercial, Limited Industrial, and Intensive…

Unincorporated Lake County requires new non-residential buildings to use bird-friendly glass on most of their exterior facade to cut bird collisions.

A wildlife rehabilitation facility in unincorporated Lake County cannot open on a zoning certificate alone. County Code Section 151.112(DDD) requires a delegated conditional use…

Lake County caps unincorporated households at four dogs and four cats over six months old, whether a single-family home or one unit in a multi-family building. Landlords and condo…

After a dog or cat bites someone and is released from confinement, Lake County requires the owner to have it microchipped within 30 days and give the Health Officer written proof.

Lake County requires every cat over four months to be rabies-vaccinated and registered with the Health Department, kept under control off its owner's property, and caps most households…

Illinois law bars breed-specific ordinances, so Lake County Health Department declares dogs dangerous, vicious, or animal-aggressive based on behavior alone under Code § 172.12, then…

Unincorporated Lake County allows backyard beekeeping as an accessory use, with hive limits by lot size and mandatory setbacks, fencing, and water requirements.

Lake County requires owners to keep dogs, cats and other animals under control by leash, confinement on the owner's premises, or an enclosure whenever the animal is off the owner's…

Retaining walls in unincorporated Lake County must sit at least 4 feet from property lines and stay under 6 feet tall without director approval.

Unincorporated Lake County caps fences and walls at six feet, with a taller eight-foot fence allowed by the zoning director or automatically between residential and nonresidential uses.

Unincorporated Lake County deleted the standard building-code exemption for low fences. Under the county's 2024 amendments to the International Residential Code, a fence of any height…

Unincorporated Lake County caps fences and walls at six feet, requires the finished side to face outward, and makes tall recreational fences mostly open.

Unincorporated Lake County adopts the 2024 ICC International Swimming Pool and Spa Code, so hot tubs and spas need a Planning, Building and Development permit and a code-compliant…

Unincorporated Lake County requires a building permit for above-ground and in-ground pools alike, and any pool deeper than two feet needs a protective barrier under Zoning Code §…

In unincorporated Lake County, the property owner must live in either the main house or the accessory dwelling unit for the ADU to be legal.

In unincorporated Lake County, an accessory dwelling unit cannot be rented out as a separate income property while the owner lives elsewhere: the property owner must occupy either the…

In unincorporated Lake County, sheds have no size exemption from building permits. Only playhouses and similar structures under 120 square feet skip the permit requirement, so any shed…

In unincorporated Lake County, accessory dwelling units are capped at one bedroom and 1,000 square feet, and only allowed on large AG, RE, E, or R-1 lots.

Unincorporated Lake County enforces smoke detector requirements through the 2024 ICC International Residential and Fire Codes it adopted by reference; violations carry up to a…

Recreational fires up to 3 feet by 3 feet by 3 feet are allowed in unincorporated Lake County without a burn permit, but must stay 25 feet from structures and be constantly attended…

Lake County treats open burning of landscape waste in unincorporated areas as a public nuisance, allowing only narrow seasonal exceptions for woody debris and recreational fires.

Selling, possessing, or using any fireworks, including consumer fireworks, in unincorporated Lake County is illegal without a county permit; permits are issued only for supervised…

In unincorporated Lake County, keeping an inoperable vehicle outside an enclosed building or a licensed wrecking yard is a public nuisance, and the Sheriff can remove hazardous…

New commercial and multifamily construction in unincorporated Lake County must install EV charging stations and wire EV-ready and EV-capable parking spaces under the county's amended…

Lake County bans parking or standing in front of driveways, within 15 feet of hydrants, 20 feet of crosswalks, and other listed spots on county and township highways outside cities…

In unincorporated Lake County, residential-zoned properties can park only one commercial vehicle under eight feet wide and 22 feet long outdoors, while larger trucks and any diesel…

Unincorporated Lake County requires off-street loading spaces at least 10 by 25 feet (12 by 65 feet for semi-trailers), bars loading from collector or arterial rights-of-way, and…

In unincorporated Lake County, a car, van, or truck parked between the house and the street in a residential zone must sit on an improved pad or driveway, never on grass. The pad is…

On posted state, county, and township highways in Lake County, parking is banned for 12 hours after any 2-inch-plus snowfall, or until the snow is cleared, whichever is later.

Unincorporated Lake County treats care for seven or fewer children as "babysitting," allowed by right as a customary home occupation rather than a regulated day care facility use.

Unincorporated Lake County treats cottage food operations as home occupations under Section 151.112(F) of the county zoning code. Operators must submit an annual cottage food operation…

Home occupations in unincorporated Lake County can see customers only between 8 a.m. and 8 p.m., and no more than six per day. Section 151.113(E)(11) sets both caps, and companion…

Home occupations in unincorporated Lake County get zero exterior signage. Section 151.113(E)(8) states plainly that no signs shall be allowed, and the code backs it up by banning any…

Unincorporated Lake County requires a zoning certificate for home occupations, capped at under 50% of dwelling floor area with two nonresident employees max.

In unincorporated Lake County, developers need Planning, Building and Development Director sign-off before removing protected significant trees, those 24 inches or more in trunk…

Unincorporated Lake County has no stand-alone rainwater-harvesting permit. The only place its Unified Development Ordinance addresses cisterns and above-ground water storage is as an…

Unincorporated Lake County requires every designated open space area created by a subdivision or development to be landscaped with native plant materials rather than turf grass or…

Unincorporated Lake County caps home compost piles tied to local food gardens at 4 feet tall and 100 square feet, fenced and set back 30 feet.

Lake County caps grass and weeds at 10 inches tall within platted subdivisions, treating taller growth as a public nuisance subject to county abatement.

Lake County's public water system bans outdoor watering from 10 a.m. to 6 p.m. every day from May 15 through September 15, and limits lawn and garden watering to odd or even days…

Unincorporated Lake County has no dedicated short-term-rental ordinance; the closest local rule is the Unified Development Ordinance's bed-and-breakfast accessory use, capping rented…

Unincorporated Lake County treats bed and breakfasts as a home occupation needing zoning approval, Health Department inspection, and a 7-day stay cap.

Lake County requires developers in unincorporated areas to protect at least 70% of significant trees, defined as 24-plus-inch deciduous or 12-plus-inch evergreen trunks, as permanent…

Subdivisions built in unincorporated Lake County must plant two street trees per 100 feet of frontage, at least 3 inches in caliper, chosen from the county's approved species list.

Development on unincorporated Lake County land subject to site plan review must protect at least 70% of "significant trees", 24-inch-diameter deciduous or 12-inch-diameter evergreen…

Solicitors in unincorporated Lake County must register with the County Clerk, get a certificate, and carry it while working.

In unincorporated Lake County, solicitors who see a posted "No Solicitors" or "No Soliciting" sign must leave immediately; knocking or ringing the bell there anyway is unlawful, and…

Unincorporated Lake County bars adult-use cannabis dispensaries within 250 feet of forest preserves or residential zoning, 500 feet of daycares, colleges, hospitals, parks or…

Adult-use cannabis facilities need a conditional use permit in the county's General Commercial, Limited Industrial or Intensive Industrial districts, with strict buffers from schools…

Electronic message board signs are allowed on unincorporated Lake County land but capped in size, dimmed at night, and barred near homes.

In unincorporated Lake County, window signs need no permit in nonresidential and institutional zoning districts but are capped at 25% of window area under the county's Unified…

Unincorporated Lake County exempts holiday lights and decorations from sign permitting, but only if displayed no more than 60 days per year.

Unincorporated Lake County allows up to two garage sale signs per event, each capped at four square feet, placed only on the sale lot or on private property with the owner's consent.

Licensed haulers in Lake County must collect recyclables from single-family homes at least once every two weeks as part of basic service.

Lake County requires every licensed hauler to collect recyclables from single-family homes at least every two weeks, as part of basic residential waste service.

Every hauler operating in Lake County must offer recyclable-material collection at least every two weeks to single-family homes and offer it to multifamily, commercial and…

Every hauler operating in unincorporated Lake County must provide curbside recycling collection to single-family homes at least once every two weeks as part of basic service, and must…

Unincorporated Lake County runs no municipal yard-waste trucks: landscape waste, brush, leaves and grass clippings are picked up only by private haulers holding a county license…

Dumping garbage, refuse, or rubbish in a public place in unincorporated Lake County, or entering another's property to dump waste, is a public nuisance punishable under the county code.

Multi-family developments in unincorporated Lake County must set aside adequate space for recycling dumpsters and bins, sited near solid waste collection areas per the county's site…

Unincorporated Lake County allows garage sales without a permit, capped at two per zoning lot per calendar year and three consecutive days each.

Unincorporated Lake County requires an adult establishment license and enforces 1,000-foot spacing from other adult businesses and protected uses, plus 250 feet from residential…

Operating a massage establishment or working as a masseuse or masseur in unincorporated Lake County requires an annual license from the County Board, with a $100 fee and fines of $25…

Operating a tattoo or body piercing establishment in Lake County without a valid Illinois Department of Public Health permit is a public nuisance under county code, enforceable…

Unincorporated Lake County flatly bans vehicle repair as a home occupation. Section 151.113(E)(5)(a) prohibits any repair, assembly, or storage of vehicles or internal-combustion…

Unincorporated Lake County retailers must hold a Health Department tobacco license, $100 per year, before selling tobacco, e-cigarettes, or nicotine products.

Lake County declares underage drinking and drug parties a nuisance; anyone who knowingly hosts or permits alcohol or illicit drugs at a social event faces fines up to $1,000 per…

Lake County bans public intoxication and drinking alcoholic liquor on any public way as a public nuisance under County Code § 94.13(A), enforced in unincorporated areas and…

Unincorporated Lake County bars smoking within 20 feet of any public building or workplace's entrance, operable window, or ventilation intake, pushing the county's indoor smoke-free…

Lake County's nuisance ordinance still classifies possessing 10 grams or less of cannabis, or paraphernalia held with it, as a public nuisance countywide, enforceable through…

Lake County prohibits soliciting alms, commercial vending, and debt collection on county-controlled buildings and grounds, such as the courthouse, with narrow exceptions for…

Lake County's nuisance ordinance makes it illegal to congregate in front of a business, home, theater, school, or church and block entry or annoy passersby, punishable by county…

Unincorporated Lake County requires soil erosion and sediment control measures on any regulated land disturbance, with specific stabilization timelines and sediment-trapping standards…

In unincorporated Lake County, boat docks and piers are a listed allowed use in the regulatory floodplain if the underlying zoning district permits them, and they're exempt from the…

In unincorporated Lake County's Coastal High Hazard Area along Lake Michigan, new construction and substantial improvements must be elevated on pilings or columns above the base flood…

New subdivisions in unincorporated Lake County must meet the county's stormwater management facility standards, sizing storm sewers for a ten-year storm and following detention-basin…

New homes in unincorporated Lake County floodplains must have their lowest floor built up to the Flood Protection Elevation: base flood elevation plus two feet of freeboard.

Unincorporated Lake County bars new construction, grading, filling, or excavation in the regulatory floodplain or floodway unless it meets the Unified Development Ordinance's flood…

Unincorporated Lake County caps impervious surface at 10% to 50% of each lot depending on zoning district, limiting how much of a property can be covered by buildings, driveways, and…

In unincorporated Lake County, § 151.125's dimensional standards tables fix minimum yard setbacks per zoning district: a uniform 30-foot street setback, but side and rear minimums…

Unincorporated Lake County caps most residential zoning districts at 40 feet, with the R6 multifamily district allowed up to 45 feet under the county zoning ordinance's density and…

Unincorporated Lake County caps outdoor light spillover at 0.5 footcandle on residential-abutting property lines and requires all luminaires to be shielded against glare.

In unincorporated Lake County, outdoor lighting can't exceed one-half footcandle at the property line abutting residential land, or one footcandle abutting nonresidential land or a…

Lake County's public nuisance ordinance makes it illegal to rent housing the Health Officer finds unfit for habitation, including units lacking potable water, working wastewater…

Unincorporated Lake County adopted the 2023 NFPA 70 National Electrical Code with local amendments, and the Planning, Building and Development Department enforces it through electrical…

In unincorporated Lake County, decks need a building permit unless they stay under 200 square feet, sit no more than 16 inches above grade, are freestanding, and don't serve as a…

Unincorporated Lake County's amended building code requires automatic sprinkler systems throughout new Group R buildings, including apartments, condos, and assisted-living facilities…

Unincorporated Lake County follows the 2024 ICC codes for building inspections, with the Planning, Building and Development Department renaming the code's foundation inspection to a…

Unincorporated Lake County adopts the 2024 ICC Building Code but strikes its plumbing chapter entirely, requiring all plumbing design, construction and installation to follow the State…

Lake County Code § 94.06(C) makes it a public nuisance for a property owner to skip a Health Officer-ordered lead hazard mitigation or block the Health Officer's lead risk assessment…

Day care facilities for more than seven people in unincorporated Lake County must clear zoning siting standards, including collector/arterial street access, before opening.

Lake County's Engineer can issue a special event permit under § 90.053 to temporarily close a county highway for parades, festivals, block parties, and filming, but only on roads…

The County Engineer issues a special event permit under Code § 90.053 to temporarily close a county highway for parades, marathons, festivals, filming, or other public events.

Lake County uses one special event permit, issued by the County Engineer for closing a county highway, to cover both public gatherings like parades and commercial filming for movies…

Closing a county highway for a parade, festival, or street fair requires a special event permit from the Lake County Division of Transportation, applied for at least 30 days before the…

On county-designated bikeways, only bicycles, pedestrians and government vehicles are allowed: motor vehicles, mopeds, ATVs and equines are barred.

Category 1 and Category 2 food service facilities in Lake County must operate under a certified food protection manager, under Health Department rules enforced countywide through the…

Lake County Code § 94.08(B) makes it a public nuisance to let pests or vermin infest a structure or property, or to leave conditions that invite infestation. The Lake County Health…

Lake County code caps grass and weeds at ten inches on any property inside a platted subdivision, vacant lots included, making taller growth a public nuisance subject to notice…

In unincorporated Lake County, a building, mobile home, shed, fence, or other structure that is hazardous to public health or safety from disrepair, faulty construction, or openness to…

In unincorporated Lake County, a backyard barbecue pit is exempt from the standard 50-foot bonfire clearance, but portable outdoor fireplaces must sit at least 15 feet from any…

Lake County splits nuisance-complaint response by subject: the Health Department handles property-maintenance and pest complaints, the Sheriff's Office handles public-safety nuisances…

Lake County's public nuisance code lists the violations code enforcement cites most: storing junk or debris, letting grass or weeds exceed 10 inches in platted subdivisions, and…

Hotels outside Lake County's cities and villages pay a 5% tax on gross rental receipts, filed monthly with the County Treasurer under the county's Hotel Operator's Tax ordinance.

Peddlers, itinerant merchants and transient vendors working unincorporated Lake County must register free with the County Clerk, carry a certificate of registration, and give a copy to…

Any food service facility in unincorporated Lake County, including temporary and mobile operations at farmers markets, festivals and public events, needs a valid, non-transferable…

Filming a movie, TV show, commercial, or documentary on a Lake County highway that requires closing the road needs a special event permit from the County Engineer, the same permit used…

Closing a county highway in Lake County for filming requires a special event permit issued by the County Engineer, who may authorize temporary closure of any portion of the road for…

Lake County's Unified Development Ordinance excludes tree of heaven from woodland and tree protection: developers don't have to preserve or replace Ailanthus altissima when calculating…

Lake County's Unified Development Ordinance requires developers to remove buckthorn, purple loosestrife, honeysuckle, garlic mustard, reed canary grass and other invasive species from…

Unincorporated Lake County grants a 5-15% density bonus for conservation developments that set aside extra open space beyond the minimum ratio.

Private work in a Lake County highway right-of-way -- sidewalks, utilities, or fixed facilities -- needs a use permit from the Division of Transportation before construction starts…

Unincorporated Lake County protects working farmland through its AG, Agricultural zoning district, built to permit only development compatible with existing rural character and…

Lake County treats renting out living quarters the Health Officer finds unfit for habitation as a public nuisance, but runs no scheduled rental-inspection or licensing program…

Roof-mounted solar panels need only standard building permits; small ground-mounted systems on residential lots are permitted by right up to 500 sq ft, larger ones need a conditional…

Lake County bars minors under 17 from public places and businesses between 11 p.m. and 6 a.m. on school nights and after midnight on weekends, with fines starting at $250.