Bolthole Index

St. Clair County, Illinois

Zoning, building permits and septic rules in Belleville, Illinois

Belleville, Illinois, in St. Clair County, has its own zoning under Chapter 162 of the city code1 and its own adopted building code, the 2006 International Building and Residential Codes2. Inside city limits the city's Health, Housing & Building Department is the office to call, not the county. A residential certificate of occupancy is required before anyone moves in3. Septic permits come from the St. Clair County Health Department4.

At a glance

Zoning
City zoning (Chapter 162) with separate residential, agricultural and commercial districts15
Building code
2006 International Building Code and Residential Code, adopted by the city2
Occupancy permit
Required before a residence can be occupied; $55 fee36
Building permit
City-issued under its adopted 2006 codes; permit table and fees not confirmed, so ask the city office2
Septic
St. Clair County Health Department permit; sewer connection required where a public sewer is within 200 feet47
Smallest lot (A-1)
10,000 sq ft, 100 ft deep, 48 ft wide8
RV and tiny home living
Not confirmed; depends on the parcel's zoning district, so ask the city office1
Short-term rental (A-1)
Special use only9

Who to call

Building permits

City of Belleville Health, Housing & Building Department

Residential occupancy inspections and certificates of occupancy inside Belleville city limits; ask this office about building permits and zoning approval

618-233-6817

[email protected]

2300 West Main St. Building M, Suite M113 Belleville, IL 62226

Septic permits

St. Clair County Health Department – Water & Private Sewage

Private sewage (septic) permits and well permits for St. Clair County

618-233-7769

[email protected]

19 Public Square, Suite 150, Belleville, IL 62220

Contact details are copied from each office’s official page and were checked against it on October 23, 2026.

Off-grid gear

Going off-grid in Belleville means bringing your own water and power. The kit we’d start with:

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Does Belleville, IL have zoning, and what does it mean for lot size and setbacks?

Yes. Belleville administers zoning inside city limits under its own Chapter 162 of the city code1. The districts include A-1, A-2, B-1, MH-1, MH-2, C-1 through C-5, industrial, floodplain, historic and AGR5.

Rules differ by district, so look up the parcel's district before you plan anything. In the A-1 single-family district, the minimum lot is 10,000 sq ft, 100 ft deep and 48 ft wide at the building line8. A-1 setbacks are 25 ft front, 5 ft side and 25 ft rear10, with a 35 ft height limit11 and 30% maximum building coverage12.

Belleville also has an agricultural/rural district. In AGR, a principal building needs 10 acres, 500 ft of depth and 400 ft of width13, with setbacks of 25 ft front, 25 ft side and 50 ft rear14.

Do you need a building permit in Belleville, and who issues it?

The City of Belleville regulates construction inside its limits, not St. Clair County. The city code adopts the 2006 International Building Code and the 2006 International Residential Code for One- and Two-Family Dwellings, with the city's own amendments2. Illinois does not issue building permits for privately funded construction; any permit requirement comes from the city or county with jurisdiction15.

We could not confirm the city's building permit table or fee schedule on an official page, so call the City of Belleville Health, Housing & Building Department before you start any work6. Anything built outside city limits falls under St. Clair County, which has separate rules for unincorporated land.

One step is confirmed: a residential certificate of occupancy (occupancy permit) is required before a residence can be legally occupied, and the city inspects the dwelling first3. The occupancy permit fee is $556.

How do septic permits and sewer connections work in Belleville?

Belleville has a public sewer mandate. A house or building used for human occupancy that abuts a street, alley or right-of-way with a public sanitary sewer must connect within 180 days after official notice, provided the sewer is within 200 feet of the property line and downstream capacity allows it; the owner pays7.

Septic permits are a different office. The St. Clair County Health Department requires a permit before anyone builds or repairs a private sewage system in the county16, and the initial permit fee is $3004. The Health Department refuses a septic permit where a sanitary sewer is available, including a practical connection within 300 feet for a single-family home4.

Put together: a lot in town with sewer nearby will normally connect to the sewer, and a septic system is realistic only where no sewer is close. We could not confirm whether the city adds its own septic rules, so ask the Health Department and the city office which applies to your address. Wells need a separate Health Department permit with a $200 fee in the townships it covers17; ask whether your address is inside that area.

Can you live in an RV or tiny home, or run a short-term rental, in Belleville?

We could not confirm Belleville's rules for living in an RV or a tiny home on a lot. Belleville zoning sets use rules district by district5, so the answer depends on the parcel's zoning; ask the City of Belleville Health, Housing & Building Department6 before you buy a camper or tiny home for a city lot. Illinois's campground licensing rules cover campgrounds, not an RV on your own lot, so they do not answer the question.

Short-term rentals are limited in the A-1 single-family district: they are listed as a special use, so a rental there needs special-use approval9. Other residential districts were not checked. Illinois taxes short-term rentals at the state level, but the tax rule does not grant land-use permission18.

Building a home in Belleville: the steps, in order

  1. Find the parcel's zoning district in Chapter 162 of the city code and check the lot size, setbacks and height for that district1.
  2. Call the City of Belleville Health, Housing & Building Department to confirm which building permits and plan review apply under the city's adopted 2006 codes2.
  3. Ask the city office whether a public sewer is within 200 feet of the property line; if it is, plan to connect7.
  4. If no sewer is near, apply to the St. Clair County Health Department for a septic permit before construction16.
  5. Have the city inspect the finished dwelling and obtain the residential certificate of occupancy before anyone moves in3.

Subdividing land inside the city is governed by Chapter 161 of the city code19.

What stays with St. Clair County, and what should you check before you buy in Belleville?

Septic and well permits stay with the St. Clair County Health Department16. The county's building, zoning and subdivision rules apply to unincorporated land only; for a parcel outside city limits, use the St. Clair County page instead.

Before you buy, confirm the zoning district, whether a public sewer is within 200 feet7, and whether the parcel sits in a flood area. Illinois regulates work in floodways and floodplains separately from city permits20. A driveway or access onto a state-maintained road needs an Illinois Department of Transportation permit21.

Costs: St. Clair County's effective property tax rate is about 2.1%22, and the median county property tax bill is about $3,533 a year23. These figures are county-wide, not specific to Belleville.

Watch-outs

  • We could not confirm Belleville's building permit table, owner-builder rules, or RV and tiny-home rules on an official city page, so call the City of Belleville Health, Housing & Building Department before you rely on them6.
  • The city's adopted building code is the 2006 edition2, while Illinois adopted statewide baseline building-code requirements effective 202524; ask the city which standards apply to a new house.
  • Illinois law does not exempt owner-builders from every local plumbing permit or inspection requirement25.
  • Many Belleville dwellings must have sewer bills paid up before an occupancy inspection or permit can be issued6.

Sources

  1. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  2. Belleville Code Chapter 150 Building Code, 150.01 Adoption of Building Code (Belleville), quoted and re-checked
  3. City of Belleville Health, Housing & Building Department: Residential Occupancy Permit Process (Belleville), quoted and re-checked
  4. Health Department - Private Sewage Disposal Code, quoted and re-checked
  5. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  6. City of Belleville Health, Housing & Building Department (belleville.net)
  7. Belleville Code Chapter 50 Sewers, 50.056 Use of Public Sewer (Belleville), quoted and re-checked
  8. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  9. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  10. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  11. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  12. Belleville Code Chapter 162 Zoning, A-1 Single-Family Residence District (Belleville), quoted and re-checked
  13. Belleville Code Chapter 162 Zoning, AGR Agricultural/Rural District (Belleville), quoted and re-checked
  14. Belleville Code Chapter 162 Zoning, AGR Agricultural/Rural District (Belleville), quoted and re-checked
  15. Illinois Codes FAQ (Illinois statewide rule), quoted and re-checked
  16. St. Clair County Health Department – Water & Private Sewage (scchealthdept.com)
  17. Water & Private Sewage, quoted and re-checked
  18. FY 2025-28, Hotel Operators’ Occupation Tax Updates for Hosting Platforms for Short-Term Rentals (Illinois statewide rule), quoted and re-checked
  19. Belleville Code Chapter 150 Building Code, 150.01 Adoption of Building Code (Belleville), quoted and re-checked
  20. Permit Program (Illinois statewide rule), quoted and re-checked
  21. Highway Permits (Illinois statewide rule), quoted and re-checked
  22. Effective property tax rate: Bolthole Index county data
  23. Median property tax bill: Bolthole Index county data
  24. Illinois Codes (Illinois statewide rule), quoted and re-checked
  25. 225 ILCS 320/18 — Local regulation; Department standards (Illinois statewide rule), quoted and re-checked

Written October 23, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Belleville

Belleville’s own rules

  • Building code adoptedAdopted

    Construction, alteration, removal, demolition, equipment, use and occupancy of buildings inside Belleville city

    • Adopts the 2006 International Building Code, the 2006 International Residential Code for One- and Two-Family Dwellings and the International Energy Conservation Code, subject to the city's own deletions and amendments.
    • Electrical (ch. 151) and plumbing (ch. 152) are separate chapters and were not opened.

    adopted edition year: 2006 year

    “that certain building code known as the 2006 international building code and 2006 international residential code for one- and two-family dwellings and international energy conservation code”
  • InspectionsRequired

    Dwelling units inside Belleville city before occupancy

    • Inspection is by the city before occupancy; construction-stage inspections (footings, backfill, rough framing, final) were reported in a search snippet only and not verified.
    “an inspection of the dwelling unit must be conducted by the city to ensure that there are no substantial defects and violations of the “housing code and ordinance.””
  • Certificate of occupancyRequired

    Residential dwelling units inside Belleville city before anyone occupies them; commercial certificate of occupancy not verified

    • Certificate issued after city inspection finds no substantial defects or violations of the housing code and ordinance; defects must be corrected before occupancy is permitted.
    • Inspection focuses on electrical and plumbing systems, exterior and interior structural elements and readily visible areas.
    “before a residence can be legally occupied, a residential certificate of occupancy (occupancy permit) must be obtained.”
  • Local zoningPresent

    Land inside Belleville city limits, administered under the city's own Chapter 162 Zoning code

    • Chapter 162 Zoning is listed in the city code table of contents with general provisions, general zoning regulations, planned unit development, industrial parks and district sections.
    “stabilize and conserve existing neighborhoods that predominantly consist of single-family dwellings.”
  • Zoning districtsPublished

    Zoning districts of Belleville city, Chapter 162

    • District list from the chapter table of contents includes A-1, A-1a, A-1(h), A-1(m), A-1(l), A-2, B-1, MH-1, MH-2, C-1 through C-5, industrial, floodplain, historic and AGR districts.
    ““a-1a” single-family residence district “a-1(h)” single-family residence district “a-1(m)” single-family residence district”
  • Minimum lot sizeSpecified

    Principal buildings in the A-1 single-family residence district inside Belleville city (district: A-1)

    • Applies to the A-1 district only; other residential districts (A-1a, A-1(h), A-1(m), A-1(l), A-2) have separate tables not claimed here.

    minimum lot area: >= 10000 sq ft · minimum lot depth: >= 100 ft · minimum lot width: >= 48 ft (at established building line)

    “minimum lot area 10,000 sq. ft. minimum lot depth 100 ft. minimum lot width 48 ft. (at established building line)”
    One more reviewed finding on this topic
  • SetbacksSpecified

    Principal buildings in the A-1 single-family residence district inside Belleville city (district: A-1)

    • Setbacks measured from lot lines per the A-1 table.

    front setback: >= 25 ft · side setback: >= 5 ft · rear setback: >= 25 ft

    “minimum setbacks from front lot line 25 ft. from side lot line 5 ft. from rear lot line 25 ft.”
    One more reviewed finding on this topic
  • Lot coverageSpecified

    Principal buildings in the A-1 district inside Belleville city (district: A-1)

    • Accessory-building coverage limit seen only in a search snippet and not verified; not claimed.

    maximum lot building coverage: <= 30 percent

    “maximum percentage of lot building coverage 30%”
  • Building heightSpecified

    Principal buildings in the AGR district inside Belleville city (district: AGR)

    • Table note: except silos, barns and farm-related structures.

    maximum building height: <= 35 ft (except silos, barns and farm-related structures)

    “notes to table: * except silos, barns and farm-related structures”
    One more reviewed finding on this topic
  • Mandatory utility hookupSewer (with conditions)

    A house, building or property used for human occupancy in Belleville city that abuts a street, alley or right-of-way where a public sanitary sewer is or may later be located

    • Connection is required within 180 days after date of official notice to do so.
    • The mandate applies only where the public sewer is within 200 feet of the property line and downstream wastewater facilities have sufficient capacity to handle the additional sewage.
    • Connection is at the owner's expense.
    • Water connection was not researched; a 300-foot notice distance in section 50.118 appeared only in a search snippet and was not verified, so the 200-foot figure is the opened text.

    distance to public sewer: <= 200 ft (measured from property line; also requires downstream capacity) · connection deadline after official notice: 180 days

    “within 180 days after date of official notice to do so; provided that, said public sewer is within 200 feet of the property line and any downstream portion of the wastewater facilities has sufficient capacity to handle the additional sewage.”
  • Subdividing landRegulated (with conditions)

    Land subdivision inside Belleville city

    • Governed by Chapter 161 Subdivisions of the city code; the chapter text was not opened.
    “chapter 161: subdivisions chapter 162: zoning chapter 163: small wireless facilities chapter 164: infill development program”
  • Short-term rentalsLimited

    Short-term rentals in the A-1 single-family residence district inside Belleville city

    • Listed as a special use (section 162.094) in the A-1 district, so it is allowed only as a special use; the special-use procedure for this item was not opened.
    • Other residential districts were not checked.
    “(h) personal solar energy system (pses); (i) solar farm energy system (sfes); and (j) short-term rentals.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Belleville or St. Clair County directly.

  • Building permit — Construction inside Belleville city limits
  • Owner-builder exemption — Owner-builder construction inside Belleville city
  • Minimum dwelling size — Minimum dwelling size inside Belleville city
  • Living in an RV — Long-term RV occupancy on private land inside Belleville city
  • Camping on your land — Temporary camping on private land inside Belleville city
13 more unanswered
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Permit fees
  • Permit process

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Belleville publishes no rule on the point, not that none exists. St. Clair County’s page lists the county offices to call.

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