Bolthole Index

Cook County, Illinois

Building permits, zoning and septic rules in South Barrington, Illinois

The Village of South Barrington, Illinois, in Cook County, requires a village building permit for construction, enlargement, alteration or remodeling1. The village has its own zoning ordinance, Title 10 of its code2. South Barrington also issues its own septic permits, so Cook County's health department is not the permit office inside village limits34.

At a glance

Building permit
Required from the village for new construction, additions, alterations and accessory structures1
Zoning
The village's own Title 10 zoning ordinance applies2
Building code
2018 International Residential Code for one- and two-family homes, with village amendments5
Septic permits
Issued by the village, not Cook County; work must be done by an IDPH-licensed contractor34
Residential permit fee
$500 application fee for residential construction and additions6
Driveway permit
Required; $100 fee7
Mobile homes
Expressly prohibited by the village zoning code8
Privies and compost toilets
Not approved for disposal of human waste9

Who to call

Building permits

Village of South Barrington Building & Engineering

Building permits and zoning for land inside South Barrington village limits

847-381-7513

30 S. Barrington Road South Barrington, IL 60010

Septic permits

Cook County Department of Public Health - Environmental Health

Septic approvals elsewhere in Cook County; the county health department states that South Barrington has its own septic ordinance

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 Village of South Barrington means bringing your own water and power. The kit we’d start with:

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Does South Barrington, IL have zoning, and what does it mean for RVs, tiny homes and lot size?

The Village of South Barrington has its own zoning ordinance, Title 10 of the village code, and it applies to land inside village limits2. Cook County's zoning ordinance covers only unincorporated land and excludes villages that have their own zoning10.

The village code expressly prohibits mobile homes8. We could not confirm the village's rules on minimum lot size, setbacks, building height, minimum home size, RV occupancy, tiny homes or accessory dwellings, because the district tables were not reachable. Ask the Building & Zoning Officer at11 before you buy for any of these uses.

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

Yes. South Barrington requires a village building permit to construct, enlarge, alter, remodel or structurally repair a building, accessory building or structure1. The village's Building & Engineering office also lists decks, patios, swimming pools, driveway work and septic repair as permit work11. Ordinary repairs that do not violate the building ordinance are exempt1.

The village, not Cook County, issues these permits inside village limits; the county's Department of Building and Zoning handles only unincorporated areas12. The village adopted the 2018 International Residential Code for one- and two-family homes and townhouses, with its own amendments5. Applications go to the village building department on village forms, and one digital copy of plans is required before a permit issues for new construction, additions or remodels13.

For work over $50,000, sealed construction documents from an Illinois-licensed architect or structural engineer can be required1. The application fee is $500 for residential construction and additions6. A driveway permit carries a $100 fee7.

How do septic permits work inside South Barrington?

South Barrington issues its own septic permits. No construction of a private sewage disposal system, or of a building served by one, is allowed in the village until the village grants a permit3. Cook County's public health department says South Barrington has its own IDPH-approved septic ordinance, so the county's usual septic review does not apply here4.

The permit is issued only when an Illinois Department of Public Health licensed private sewage disposal contractor does the work. Percolation tests must be run and evaluated under a registered Illinois professional engineer, design drawings and soil analysis must carry an engineer's seal, and holding tanks are not allowed in place of a septic field3. The installer must notify the village building department at least 24 hours before construction starts, and owners must have the tank cleaned at least once every five years14.

Privies, chemical toilets, compost toilets and similar systems are not approved for private disposal of human waste, though chemical toilets may be used on construction sites when serviced by a licensed operator9.

Can you connect to village sewer in South Barrington?

A connection to the village sewer needs a village permit and approval, and the village may approve or deny a connection in its sole discretion15. Where sewer is not available, the building sewer must connect to a private septic system15. If a private system fails in a way cleaning and repair cannot fix and the property is within 100 feet of the village sewer, the system must be disconnected and the property connected to sewer15. We could not confirm whether the village's mandatory-connection deadline applies to a single-family home, so ask the Building & Engineering office11.

Building a home in South Barrington: the steps, in order

  1. Call the Building & Engineering office at 847-381-7513 to confirm zoning for your lot and which permits your project needs11.
  2. Check whether a homeowners association must approve exterior changes before you apply; the village says projects that change the outside appearance will likely need that approval first11.
  3. If the lot is not on village sewer, plan a septic system: hire an IDPH-licensed contractor and an Illinois engineer for percolation tests and sealed drawings3.
  4. File the building permit application on village forms with a digital copy of the plans13.
  5. Pay the application fee of $500 for residential construction and additions, plus $100 for a driveway permit67.
  6. Give the village at least 24 hours' notice before septic construction starts so the system can be inspected before it is covered14.

What stays with Cook County, and what should you check before you buy in South Barrington?

Rules for land outside the village limits are different. Unincorporated Cook County has its own building permits and zoning from the county's Department of Building and Zoning16. See the Cook County page for those rules.

Cook County's effective property tax rate is about 2%17. Before you buy, confirm the lot's zoning district and whether sewer reaches it, because the district tables and the sewer rules decide what you can build and which septic or sewer permit applies. We could not confirm village rules on private wells, so ask the Building & Engineering office11.

Watch-outs

  • We could not confirm South Barrington's minimum lot size, setbacks, height limits or minimum home size, so get them from the village Building & Zoning Officer before you contract on a lot11.
  • The village treats mobile homes as prohibited, and we could not confirm how it treats other manufactured housing, RVs or tiny homes8.
  • The village's residential code comes with village-specific amendments kept by the village clerk, so ask the village for the amendments along with the 2018 International Residential Code5.
  • Cook County's Department of Building and Zoning will send you back to the village for property inside South Barrington12.

Sources

  1. Village Code Title 8, Chapter 1 Building Code (8-1-4 adopted codes; 8-1-5 building permit; 8-1-6 fees) (Village of South Barrington), quoted and re-checked
  2. South Barrington, IL Code of Ordinances (American Legal Publishing) overview (Village of South Barrington), quoted and re-checked
  3. Village Code Chapter 4-8A Wastewater Sewer System (4-8A-2 general use requirements; 4-8A-2-265 private sewage disposal) (Village of South Barrington), quoted and re-checked
  4. Septic, quoted and re-checked
  5. Village Code Title 8, Chapter 1 Building Code (8-1-4 adopted codes; 8-1-5 building permit; 8-1-6 fees) (Village of South Barrington), quoted and re-checked
  6. Village Code Title 8, Chapter 1 Building Code (8-1-4 adopted codes; 8-1-5 building permit; 8-1-6 fees) (Village of South Barrington), quoted and re-checked
  7. Village Code Title 8, Chapter 1 Building Code (8-1-4 adopted codes; 8-1-5 building permit; 8-1-6 fees) (Village of South Barrington), quoted and re-checked
  8. Village Code Title 10 Zoning, Section 10-16-5 Definition of words and terms (Village of South Barrington), quoted and re-checked
  9. Village Code Chapter 4-8A Wastewater Sewer System (4-8A-2 general use requirements; 4-8A-2-265 private sewage disposal) (Village of South Barrington), quoted and re-checked
  10. Amendment to Cook County Zoning Ordinance, quoted and re-checked
  11. Village of South Barrington Building & Engineering (southbarrington.org)
  12. Building and Zoning, quoted and re-checked
  13. Village Code Title 8, Chapter 1 Building Code (8-1-4 adopted codes; 8-1-5 building permit; 8-1-6 fees) (Village of South Barrington), quoted and re-checked
  14. Village Code Chapter 4-8A Wastewater Sewer System (4-8A-2 general use requirements; 4-8A-2-265 private sewage disposal) (Village of South Barrington), quoted and re-checked
  15. Village Code Chapter 4-8A Wastewater Sewer System (4-8A-2 general use requirements; 4-8A-2-265 private sewage disposal) (Village of South Barrington), quoted and re-checked
  16. Building and Zoning Building Permits, quoted and re-checked
  17. Effective property tax rate: Bolthole Index county data

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 Village of South Barrington

Village of South Barrington’s own rules

  • Building permitRequired

    Construction, enlargement, alteration or remodeling of buildings and accessory structures inside South Barrington village

    • Ordinary repairs that do not violate the building ordinance are exempt.
    • Construction documents sealed by an Illinois-licensed architect or structural engineer are required for work over $50,000 when the building official deems it appropriate.
    • Site drawings are required when work changes land grade, contour or drainage.
    • One digital copy of plans is required before a permit issues for new construction, additions or remodels.

    construction documents threshold: > 50000 USD (when the building officer deems it appropriate) · excavation threshold: > 50 cubic yards

    “it shall be unlawful to construct, enlarge, alter, remodel, remove, structurally repair or demolish a building, accessory building or structure”
  • Building code adoptedAdopted (with conditions)

    Detached one- and two-family dwellings and townhouses (not more than three stories) inside South Barrington village

    • Adopted with village-specific additions, insertions, deletions and changes in a separate document kept by the village clerk; that document was not reviewed.
    • Where the residential code conflicts with other village ordinances, the more restrictive provision governs.
    • Ordinance history on the page shows amendment ord. 2018-1187, 8-9-2018.
    “the international residential code, 2018 edition, including appendix chapters, as published by the international code council”
    2 more reviewed findings on this topic
  • Local zoningPresent (with conditions)

    Land inside South Barrington village limits. The village's own Title 10 Zoning ordinance applies; it cross-references its zoning sections (e.g., 10-6-7 home occupations) and definitions.

    • Only the Title 10 definitions section (10-16-5) and the overview table of contents were opened; the district and use tables (sections 10-5 and 10-15) were not reached.
    • Title 10 is listed as a live title in the code current through ord. 2026-1467 (passed 6-11-2026).
    “home occupation: an accessory use of a dwelling for limited commercial purposes. home occupations are subject to the regulations of section 10-6-7.”
  • Manufactured homesProhibited

    Mobile homes (as defined in the village Title 10 definitions) inside South Barrington village

    • Applies to structures the village defines as 'mobile home' (designed for permanent habitation and transportable on wheels).
    • The village definition of 'detached house' excludes mobile homes and manufactured housing units.
    • Whether separately defined manufactured housing units are prohibited was not confirmed beyond the mobile-home note.
    “note: mobile homes are expressly prohibited in the village.”
  • Who permits septicLocal (with conditions)

    Private sewage disposal systems (septic) on land inside South Barrington village

    • The village adopts the state Private Sewage Disposal Licensing Act and Code and issues its own construction permits; the village enforcement officer is the building officer.
    • State IDPH licensing applies to contractors, and percolation tests must follow county and state rules (see septic permit claim).
    • Village also treats septic installation under its own code amendments in chapter 4-7.
    “as promulgated by the state of illinois department of public health in august 2013, and as it may hereafter be amended from time to time are hereby adopted by the village”
  • Septic permitRequired

    Construction of a private sewage disposal system, or of a building served by one, inside South Barrington village

    • Permit is issued by the village; the village applies the state code plus its own amendments.
    • Permit issued only when the work is done by an Illinois Department of Public Health licensed private sewage disposal contractor.
    • Percolation tests must be conducted and evaluated under a registered Illinois professional engineer.
    • Design drawings and soil analysis must bear the seal of an Illinois registered professional engineer.
    • Holding tanks are not permitted in lieu of the septic field.
    “no construction shall be permitted for any private sewage disposal system or for any building to be served by a private sewage disposal system, within the village, unless a permit for a private sewage disposal system has first been obtained from the village.”
  • Septic inspectionLimited

    Private sewage disposal systems inside South Barrington village

    • Village may inspect any private system it finds operating within village limits; this is discretionary ('may be subject to inspection').
    • Owner and occupant must have the septic tank cleaned no less than once every five years, and the village may ask for a paid invoice from a licensed contractor.
    • Installer must notify the village building department at least 24 hours before construction starts so the system can be inspected before covering.

    septic tank cleaning interval: <= 5 years

    “all private sewage disposal systems installed and operated within the village limits may be subject to inspection by the village”
  • Off-grid sanitationProhibited

    Privies, cesspools and other unpermitted sewage disposal facilities inside South Barrington village

    • Septic systems are allowed only under section 4-8A-2-265 with a village permit.
    • Privies, chemical toilets, recirculation toilets, incinerator toilets and compost toilets are not approved for private disposal of human wastes (village adoption of state code, section 905.130).
    • Chemical toilets may be used on construction sites when serviced by a licensed operator.
    “it is unlawful to construct or maintain any privy, privy vault, septic tank, cesspool, or other facility intended or used for the disposal of sewage except as provided in section 4-8a-2-265 of this chapter.”
  • Mandatory utility hookupConditional

    New home on land inside South Barrington village, sewer connection

    • A connection to the village sewer requires a village permit and village approval; the village may approve or deny the connection in its sole discretion.
    • Where the sewer is not available, the building sanitary sewer must connect to a private septic system.
    • Where a private system malfunctions that cannot be fixed by cleaning and repair and the property is within 100 feet of the village sewer, the private system must be disconnected and connected to the sewer.
    • The 90-day mandatory connection rule in 4-8A-2-255 (sewer within 1,000 feet of property line) is written for buildings or properties used for public occupancy, employment, recreation or other purpose; its application to a single-family home was not confirmed.
    • Properties outside village limits must annex before connecting (4-8A-2-201(b)).

    connection deadline after village notice: 90 days (applies where sewer is within 1,000 feet, per 4-8A-2-255 scope) · sewer availability distance for mandatory connection: <= 1000 feet · malfunction connection distance: <= 100 feet

    “the village of south barrington may approve or deny the connection in its sole discretion.”
  • Driveway accessRequired

    Installing a driveway inside South Barrington village

    • Driveway permit fee of $100.00 (temporary, paving, repaving, monument) per the section 8-1-5(e) schedule.

    driveway permit fee: 100 USD

    “or to install a driveway, or to excavate, move, spread, shape or import more than fifty (50) cubic yards of earth”
  • Permit feesPublished (with conditions)

    Building permit application fees inside South Barrington village

    • Fees for on-site engineering review are billed at consultant cost plus 10%.
    • Nonresidential permit fee is 1% of the first $200,000 of estimated construction cost plus 0.5% above that (section 8-1-4-4(c)(3)).
    • Sewer connection permit application fee is set by village board resolution (section 4-8A-2-210(e)); that resolution was not located.

    residential construction and additions application fee: 500 USD · building alteration or remodeling application fee: 150 USD · well drilling for additional locations application fee: 150 USD · septic modification application fee: 100 USD

    “the following application fees are applicable to all residential and nonresidential building permits: nonresidential construction, interior build-outs and additions $500.00 residential construction and additions 500.00”
  • Permit processPartial

    Building permit application process inside South Barrington village

    • Application is filed with the building department on village forms; permits require a written application and issuance by the building and zoning officer.
    • Digital plan copy is required before permit issuance.
    • Full administrative steps (review timelines, appeals) were not located in the code pages opened.
    “the village will require at least one (1) digital copy of plans for any new construction, addition, or remodel of residential and nonresidential buildings prior to the issuance of a building permit”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of South Barrington or Cook County directly.

  • Owner-builder exemption — Owner-occupant building without a licensed contractor inside South Barrington village
  • Zoning districts — Zoning district list and map for South Barrington village
  • Minimum dwelling size — Minimum dwelling floor area inside South Barrington village
  • Minimum lot size — Minimum lot size for single-family residential and any agricultural/rural district inside South Barrington village
  • Setbacks — Front, side and rear setbacks for single-family residential and any agricultural/rural district inside South Barrington village
11 more unanswered
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Building in a floodplain
  • Short-term rentals

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 Village of South Barrington publishes no rule on the point, not that none exists. Cook County’s page lists the county offices to call.

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