Moultrie County, IL Building Permits, Zoning & Septic

Unincorporated Moultrie County, Illinois requires permits before most residential construction, including new homes, additions and detached buildings¹. The county also applies zoning districts to unincorporated land². Septic and private-well work require separate permits through the Moultrie County Health Department³⁴.

At a glance

Building permit: Required before most residential construction in unincorporated Moultrie County¹
Zoning: County zoning applies to unincorporated land²
Septic permit: Required for new systems and modifications through the county health department³
Private well permit: Required for installations, revisions and closures through the county health department⁴
Agricultural uses: Some uses may be zoning-exempt, but setbacks still apply⁵
RV or tiny-home living: Not confirmed; ask Planning & Zoning about the parcel and proposed use²
Owner-builder exemption: No exemption was confirmed; ask Planning & Zoning before doing your own work⁶

Who to call

Planning & zoning

Moultrie County Planning & Zoning Office

Construction, zoning, flood-hazard and subdivision regulations in unincorporated Moultrie County

(217) 728-7922

[email protected]

Moultrie County Courthouse 10 South Main Street, Suite 1 Sullivan, IL 61951

Septic permits

Moultrie County Health Department

Permits and inspections for new septic systems and modifications to existing systems

217-728-4114

202 S Main St. Sullivan, IL 61951

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

Do you need a building permit in Moultrie County, IL?

Yes. Unincorporated Moultrie County requires permits before most construction on residentially used land, including a new home, an addition, a deck or porch, a detached building, a small storage building, or an in-ground swimming pool¹. Roof replacement, siding, windows, and interior remodeling without major structural changes do not require a county permit¹. County inspections occur while permitted construction is underway⁷. Illinois does not issue the building permit for a privately funded project; that job belongs to the applicable local government, which in unincorporated Moultrie County is the county⁸⁹. Land inside a city or village can be under that municipality's rules, so confirm jurisdiction before relying on the county process.

Who handles Moultrie County building permits and zoning?

The Moultrie County Planning & Zoning Office regulates construction activities in unincorporated Moultrie County and administers zoning, flood-hazard and subdivision regulations⁹. Call the office at (217) 728-7922 or visit the Moultrie County Courthouse, 10 South Main Street, Suite 1, Sullivan, Illinois⁹. Start there before ordering plans or site work: staff can confirm whether the parcel is unincorporated, identify its zoning district, and explain which county approvals apply⁹. County permits must be obtained before covered construction begins¹. The county has not confirmed an owner-builder exemption, so an owner planning to act as contractor should ask the office how the normal permit and inspection process applies⁶. Illinois's statewide baseline code framework also applies, while private-project permitting and inspections remain local functions¹⁰¹¹.

Does Moultrie County have zoning?

Moultrie County zoning divides the unincorporated county into districts, and the allowed use of land depends on the district². Setbacks and building heights are also district-specific rather than governed by one statewide measurement¹²¹³. The available county information does not confirm the numeric setback, minimum lot size, minimum dwelling size, lot coverage, or building-height rule for a particular parcel, so ask Planning & Zoning for the current district standards before designing the site⁹. Certain agricultural uses may be exempt from local zoning requirements, but the exemption does not remove setbacks; the county advises verifying eligibility with the department and legal counsel⁵. County zoning information does not establish the rules inside an incorporated city or village, where municipal requirements may control instead.

How do septic and well permits work in Moultrie County?

The Moultrie County Health Department issues permits and conducts inspections for new septic installations and modifications to existing systems in its service area³¹⁴. State rules require plan approval from the health department or other applicable authority before construction begins, and the installer must notify that authority at least 48 hours before starting work¹⁵. Site feasibility deserves early attention: none of the county's mapped soils are rated without severe limitations for a conventional septic drain field, so plan for a site evaluation and the possibility of a more involved system design¹⁶. Call the Health Department at 217-728-4114 or visit 202 S Main St. in Sullivan¹⁴. The Health Department also permits and inspects water and geothermal well installations, revisions, and closures⁴.

Can you live in an RV or tiny home in Moultrie County?

We could not confirm a Moultrie County rule that allows long-term RV living, temporary camping, or tiny-home occupancy on an ordinary private parcel. Because unincorporated Moultrie County has zoning and requires permits for most residential construction, ask Planning & Zoning whether the proposed dwelling type and use are allowed in the parcel's district before buying or moving anything onto the land²¹⁹. Illinois's campground law covers licensed campgrounds and does not answer whether someone may occupy an RV on their own parcel¹⁷. State manufactured-home rules likewise allow occupancy only subject to installation requirements and local zoning, building, floodplain and utility rules¹⁸. A tiny home intended as a residence still needs a parcel-specific answer on use, size, setbacks, sanitation and permits from the county offices.

What are the steps to build a home in Moultrie County?

Ask Planning & Zoning to confirm that the parcel is in unincorporated Moultrie County, identify its zoning district, and confirm that a home is an allowed use²⁹.
Obtain the county building permit before construction begins and ask when inspections must be scheduled¹.
Apply to the Moultrie County Health Department for septic plan approval before septic construction, then give at least 48 hours' notice before that work starts³¹⁵.
Apply through the Health Department before installing, revising, or closing a private water or geothermal well⁴.
If work touches an Interstate, U.S. route, Illinois route, or state-maintained road right-of-way, secure the IDOT permit before starting¹⁹.
Ask Planning & Zoning whether flood-hazard approval or another local sign-off is needed before site work⁹.

What should you check before buying land in Moultrie County?

Check zoning first: the parcel's district controls allowed uses, while its exact setbacks, height limits and dimensional standards need confirmation from Planning & Zoning²¹²¹³. Check soils early because none of Moultrie County's mapped soils are rated without severe limitations for a conventional septic drain field¹⁶. Check flood exposure and approvals with Planning & Zoning; regulated Illinois floodway work may also require state authorization⁹²⁰. Check legal road access, and remember that work in a state-road right-of-way needs an IDOT permit¹⁹. Private wells require a permit before installation, revision, or closure⁴. For carrying costs, the effective property-tax rate is about 1.9%, and the median annual property-tax bill is about $2,316²¹²².

Watch-outs

Do not assume an agricultural building is free from every local rule: qualifying agricultural uses may receive a zoning exemption, but county setbacks still apply⁵.
Moultrie County's mapped soils all carry severe limitations for conventional septic drain fields, so obtain a site evaluation before treating a buildable-looking parcel as septic-ready¹⁶.
RV living, temporary camping, tiny homes, minimum dwelling size, and an owner-builder exemption remain unconfirmed; ask Planning & Zoning about the exact parcel and proposal²⁶⁹.

Sources

Written September 27, 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.

How Moultrie County scores

Seclusion49100% ev.

Self-Sufficiency31100% ev.

Admin Boringness4390% ev.

Durability62100% ev.

Property Autonomy42100% ev.

Carry Cost49100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$189kTypical home

1.9%Property tax

$11,597Land / acre

39.9"Annual rain

2.7% of yrsSevere drought

9.3 / yr (+8.6)Mid-century 100°F days

13.9 daysMid-century dry spell

1.82" (+6.9%)Mid-century 1-day rain

1.8×Wildfire change factor

100%Forward climate coverage

$1,470Home insurance / yr

4.4% / yrInsurance growth

1.25%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

33,651People within 30 min

1,398,645People within 2 hr

42,617Radius comparison (15 mi)

42.7People / sq mi

2.5%Federal land

97.7%Land at 15% slope or less

0%Septic soil without severe limits

98 acWorkable land screen

7.7%Wooded land

60.1 tonsBiomass / forest ac

53.1°FAvg temp

Answers from the rulebook for Moultrie County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Moultrie County rules

Building permitRequired
Most construction projects on residentially used land, including new homes, additions, detached buildings, and in-ground swimming pools.
- Permits are required before construction starts.
- No permit is required for roof replacements, siding, windows, or internal remodels that do not include major structural changes.
“required before that construction starts”
Moultrie County Zoning ↗Re-checked Sep 26, 2026
Septic permitRequired
New septic system installations and modifications to existing septic systems in the Moultrie County Health Department service area.
- Permits must ensure compliance with Illinois Department of Public Health requirements.
“permits for all new septic system installations”
Septic Program ↗Re-checked Sep 26, 2026
Well permitRequired
Water and geothermal well installations, revisions, and closures in the Moultrie County Health Department service area.
- The health department administers permits and inspections to protect groundwater supplies.
“The MCHD issues permits and conducts inspections of all water and geothermal well installations, revisions, and closures”
National Public Health Week and Moultrie County ↗Re-checked Sep 26, 2026
Agricultural exemptionConditional
Certain agricultural uses subject to Moultrie County zoning.
- Certain agricultural uses are exempt from local zoning regulations.
- The exemption does not apply to setbacks.
- The page attributes the exemption to state law and recommends verifying eligibility with the department and legal counsel.
“exempt from meeting local zoning regulations, except for setbacks”
Moultrie County Zoning ↗Re-checked Sep 26, 2026
County-wide zoningPresent
The County Board adopted zoning regulations in 1977 dividing the unincorporated area into zoning districts.
Moultrie County Planning & Zoning ↗Scouted from the county site, not yet independently re-checked

Illinois rules that apply here

Building code adoptedPartial
Building-code requirements statewide in Illinois, including residential and commercial construction subject to the Capital Development Board Act baseline requirements.
- Effective 2025-01-01, Illinois requires statewide baseline building-code requirements.
- Local governments may adopt building codes, but they are not required to adopt codes; jurisdictions that do not adopt a code are treated as non-building-code jurisdictions and must follow the applicable state-law baseline requirements.
- For jurisdictions with adopted codes, local codes must regulate structural design at least as stringently as the applicable IRC, IBC, or IEBC baseline.
- Commercial buildings in non-building-code jurisdictions and state-funded buildings are subject to the state-listed codes and qualified-inspection requirements.
- Residential requirements differ depending on whether the jurisdiction has adopted a compliant building code and whether the home purchaser and builder agree to an alternative code.
statewide baseline effective date: 2025-01-01 · local code structural minimum for residential buildings: IRC minimum structural requirements · local code structural minimum for commercial new buildings: IBC minimum structural requirements · local code structural minimum for existing commercial buildings: IEBC minimum structural requirements
“The State of Illinois recently passed legislation (Public Act 103-0510) changing the Capital Development Board Act to require statewide building codes effective 1/1/2025. [...] Commercial buildings in jurisdictions that have not adopted a building code AND state funded buildings. [...] Starting 1/1/25 local codes must regulate the structural design in a manner that is at least as stringent as the IBC© for new buildings or IEBC© for existing buildings. [...] Residential buildings in jurisdictions that have not adopted a building code where agreed to by the home purchaser and home builder. [...] Residential buildings in jurisdictions that have adopted a building code. [...] Starting 1/1/25 local codes must regulate the structural design in a manner that is at least as stringent as the IRC©.”
Illinois Codes ↗Re-checked Sep 9, 2026
One more reviewed finding on this topic
- Adopted — Statewide baseline building-code requirements for residential construction in Illinois, including jurisdictions with and without locally adopted building codes.
  “Please be advised that the State of Illinois recently passed legislation (Public Act 103-0510) changing the Capital Development Board Act to require statewide baseline building codes effective 1/1/2025. Locally adopted building codes must comply with the requirements of the Act.”
  Building Codes and Regulations ↗Re-checked Sep 26, 2026
InspectionsLimited
Privately funded construction statewide in Illinois, as to inspections performed by the State rather than by a local authority having jurisdiction.
- The Illinois Capital Development Board does not perform building-code inspections for privately funded construction.
- If inspections are required, they are addressed by the applicable unit of local government.
- A local municipality or county may be a non-building-code jurisdiction, in which case applicable state baseline requirements and inspection-certification provisions may apply.
“No. If any of these are required, they would be addressed by the unit of local government.”
Illinois Codes FAQ ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Not required — Building-code-compliance inspections performed by the State of Illinois for privately funded construction.
  “No. If any of these are required, they would be addressed by the unit of local government.”
  Illinois Codes FAQ ↗Re-checked Sep 9, 2026
Certificate of occupancyLimited
Occupancy permits or certificates for privately funded construction in Illinois.
- The State does not issue occupancy permits for privately funded construction.
- If an occupancy permit is required, it is addressed by the applicable unit of local government.
“No. If any of these are required, they would be addressed by the unit of local government.”
Illinois Codes FAQ ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Not required — Issuance of occupancy permits or certificates by the State of Illinois for privately funded construction.
  “No. If any of these are required, they would be addressed by the unit of local government.”
  Illinois Codes FAQ ↗Re-checked Sep 9, 2026
SetbacksDistrict specific (with conditions)
County zoning regulations for building or setback lines outside municipalities with municipal zoning ordinances.
- The actual setback distances are established by applicable county zoning districts or other local ordinances.
- Agricultural buildings may be required to conform to building or setback lines.
“to establish building or setback lines”
55 ILCS 5/5-12001 — Authority to regulate and restrict location and use of structures ↗Re-checked Sep 9, 2026
Building heightDistrict specific (with conditions)
County zoning districts outside municipalities with municipal zoning ordinances.
- The applicable county zoning ordinance determines the actual height limit by district or use.
- No single statewide height measurement was identified.
“including height of buildings and structures”
55 ILCS 5/5-12001 — Authority to regulate and restrict location and use of structures ↗Re-checked Sep 9, 2026
Manufactured homesAllowed (with conditions)
Occupancy of manufactured homes as dwellings, including occupancy in manufactured home communities regulated by IDPH.
- Manufactured home communities with 5 or more sites must be licensed by IDPH, except communities located in home rule units.
- IDPH annually inspects licensed communities for renewal, including water, sewage disposal, electrical systems, lighting, roads, spacing of homes, and garbage disposal.
- Manufactured homes moved since January 1, 1980 must be secured using equipment meeting IDPH standards.
- Effective December 31, 2001, manufactured homes must be installed by an Illinois licensed manufactured home installer or the homeowner and installed according to manufacturer instructions; if unavailable, the IDPH Manufactured Home Installation Code applies.
- Local zoning, building, floodplain, and utility requirements may also apply.
manufactured home community license threshold: >= 5 sites (Communities located in home rule units are excepted from this IDPH licensing statement.) · moved-home tiedown requirement effective date: >= 1980-01-01 · installation requirement effective date: >= 2001-12-31
“designed and situated so as to permit its occupancy as a dwelling place for one or more persons”
Manufactured & Modular Homes/Mobile Structures ↗Re-checked Sep 9, 2026
Who permits septicMixed
Installation and plan approval for private sewage disposal systems statewide in Illinois.
- IDPH regulates private sewage disposal systems within the described scope.
- About 90 local health agencies also review construction plans under local ordinances or as agents of IDPH.
surface discharge threshold: <= 1500 gallons per day (Systems with no surface discharge are also regulated.)
“There are about 90 local health agencies in Illinois that also review sewage disposal system construction plans”
Private Sewage Disposal ↗Re-checked Sep 9, 2026
Septic inspectionLimited
New and replacement surface-discharging private sewage disposal systems covered by Illinois EPA general NPDES Permit ILG62.
- Coverage under the general permit is limited to eligible dischargers.
- Systems not eligible for general-permit coverage may require an individual NPDES permit.
- Periodic inspection, monitoring, and reporting are required under the permit.
“The permit sets discharge limits and requires periodic inspection, monitoring and reporting.”
Illinois Surface Discharge Permit (ILG62) ↗Re-checked Sep 9, 2026
Off-grid sanitationAllowed (with conditions)
Off-grid disposal of human wastes through privies, portable toilets, recirculation toilets, incinerator toilets, and compost toilets statewide in Illinois.
- Other domestic wastes must be disposed of in a conventional private sewage disposal system.
- Compost toilets may also be used for other organic domestic wastes.
- Privies have construction, capacity, venting, maintenance, and abandonment requirements.
- A privy pit must have a minimum capacity of 50 cubic feet per seat.
- A privy must be pumped when filled to within 18 inches of the bottom of the riser.
- Vault privies are required where groundwater or limestone formations are within 4 feet of the bottom of the pit.
- Recirculating toilets must meet NSF International/ANSI Standard 41 and residuals must go to an approved public or private sewage disposal system.
- Incinerator and compost toilets have separate maintenance and disposal requirements; compost toilets must meet NSF International/ANSI Standard 41.
privy pit minimum capacity: >= 50 cubic feet per seat · privy pumping trigger: <= 18 inches from bottom of riser (Pump when filled to within this distance.) · vault-privy groundwater or limestone separation: < 4 feet from bottom of pit (Watertight, non-metal vaults are required where the condition applies.)
“Privies, portable toilets, recirculation toilets, incinerator toilets and compost toilets are approved for private sewage disposal of human wastes.”
77 Ill. Adm. Code 905.130 Human Waste Disposal ↗Re-checked Sep 9, 2026
Driveway accessRequired
Work within the right-of-way of an Interstate, U.S. state route, Illinois state route, or state-maintained roadway, including access-driveway requests to State highways.
- A permit must be obtained before work begins.
- Requirements may vary by IDOT district; the applicant must contact the district office for specific requirements.
- IDOT's access-driveway handbook guides what is allowable for highway access requests.
“Per 605 ILCS 5/4 209, IDOT requires a permit when working within the right-of-way of an Interstate, U.S. state route, Illinois state route, or state maintained roadway. A permit must be obtained prior to the start of any work and a copy of the approved permit must be at the worksite at all times.”
Highway Permits ↗Re-checked Sep 9, 2026
Building in a floodplainRequired
Construction activities in regulated Illinois floodways and, where a floodway has not been delineated, generally work anywhere in the floodplain.
- For downstate streams, IDNR Division permitting applies to floodways of streams draining at least one square mile in urban areas or ten square miles in rural areas.
- In northeastern Illinois, Part 3708 applies to identified floodways in Cook County excluding Chicago, DuPage, Kane, Lake, McHenry, and Will Counties.
- Some minor activities are automatically authorized by statewide or regional permits if their terms and conditions are met.
- For State-owned property, Part 3710 requires a permit for all development activity in FEMA-mapped floodplains.
urban stream drainage area threshold: >= 1 square mile (regulated floodways under Part 3700) · rural stream drainage area threshold: >= 10 square miles (regulated floodways under Part 3700)
“All construction activities in the floodways of streams (the channel and the adjacent portion of the floodplain that is needed to safely convey and store flood waters) in urban areas where the stream drainage area is one square mile or more or in rural areas where the stream drainage area is ten square miles or more must be permitted by the Division prior to construction.”
Permit Program ↗Re-checked Sep 9, 2026
Short-term rentalsLimited
Short-term rentals in Illinois where at least one room is rented for fewer than 30 consecutive days and accommodations are reserved in advance, when the hosting platform meets the statutory definition of a re-renter.
- Beginning July 1, 2025, qualifying hosting platforms are subject to Hotel Operators’ Occupation Tax.
- The source establishes tax and registration obligations, not statewide land-use permission; local zoning and licensing may separately apply.
rental period: < 30 consecutive days
“Beginning July 1, 2025, hosting platforms for short-term rentals that meet the definition of “re-renter” are subject to Hotel Operators’ Occupation Tax.”
FY 2025-28, Hotel Operators’ Occupation Tax Updates for Hosting Platforms for Short-Term Rentals ↗Re-checked Sep 9, 2026
Permit feesVariable (with conditions)
Applications and written inquiries for Illinois Department of Natural Resources public-water, dam, and floodway work requiring authorization.
- The Department reviews applications and written inquiries free of charge to determine whether authorization is required when sufficient information is provided.
- A permit application fee may apply under the Department's permit fee schedule.
“January 15, 2014, a new Permit Application Fee went into effect. All applications and written inquiries received will be reviewed free of charge to determine whether the Public Water, dam and/or floodway work proposed requires authorization by the Department, so long as sufficient information is provided for the Department to make that determination.”
Permit Program ↗Re-checked Sep 9, 2026
Permit processPublished (with conditions)
Construction projects in Illinois waterways, floodplains, and wetlands seeking State and Federal authorizations through the joint permit application process.
- The joint application seeks authorizations from the U.S. Army Corps of Engineers, Illinois Department of Natural Resources, Office of Water Resources, and Illinois Environmental Protection Agency.
- The joint application form replaced the former Protecting Illinois Waters application package.
“Construction projects in Illinois' waterways, floodplains and wetlands often require both State and Federal authorization. This joint application is designed to simplify the approval process for the applicant seeking project authorizations from the U. S. Army Corps of Engineers, the Illinois Department of Natural Resources, the Office of Water Resources and the Illinois Environmental Protection Agency.”
Permit Application and Instructions ↗Re-checked Sep 9, 2026
Campground & park staysAllowed (with conditions)
Overnight camping in Illinois campgrounds subject to the Campground Licensing and Recreational Area Act.
- IDPH annually inspects and licenses campgrounds in Illinois.
- The state campground definition includes camping and temporary parking of recreational vehicles.
- Campgrounds within home rule units of government are exempt from the state campground licensing requirement.
- Recreational areas without overnight camping, such as highway rest stops and picnicking areas, are subject to the rules but are not licensed or routinely inspected.
minimum persons for statutory campground threshold: >= 10 persons · minimum camping duration for statutory campground threshold: >= 6 camping days per calendar year
““Camping Day” means any 24 hour period or portion thereof during which the participants remain overnight at the site.”
Youth Camps and Campgrounds ↗Re-checked Sep 9, 2026
county building authorityGeneral
Illinois counties adopting and enforcing building codes and issuing building permits for residential construction in unincorporated areas, subject to the statewide baseline framework.
- A municipality or county is not required to adopt a building code.
- A county that does not adopt a building code is treated as a non-building-code jurisdiction, and section 10.09-1 of the Capital Development Board Act applies.
- A county that adopts a building code must comply with section 10.18 of the Capital Development Board Act.
- Locally adopted codes must regulate residential structural design at least as stringently as the baseline International Residential Code.
- For privately funded projects, the local code official is the authority having jurisdiction; the State does not issue private-project building permits, perform plan reviews, or perform inspections.
“A municipality or county is not required to adopt building codes. If they do NOT adopt a building code then they are considered a non-building code jurisdiction and section 10.09-1 of the Capital Development Board Act (20 ILCS 3105) applies. If they do adopt a building code(s) then it must comply with section 10.18 of the Capital Development Board Act (20 ILCS 3105).”
Illinois Codes FAQ ↗Re-checked Sep 26, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

Owner-builder exemption — Owner-builder exemption from county building requirements.
Minimum dwelling size — Minimum dwelling-size requirements in county zoning districts.
Minimum lot size — Minimum lot-size requirements in county zoning districts.
Lot coverage — Lot-coverage requirements in county zoning districts.
Living in an RV — Long-term or residential occupancy of recreational vehicles on land subject to county zoning.

5 more unanswered

Camping on your land
Tiny homes
Accessory dwellings
Mandatory utility hookup
Subdividing land

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.

Living off-grid in Moultrie County, Illinois

Is Moultrie County a good place to live off-grid or homestead?

Moultrie County scores 49/100 on the Bolthole Index, a solid county profile. Its strengths: elevated current hazard exposure. Watch-outs: workable self-sufficiency basics (39.9″/yr rainfall).

Do you need a building permit in Moultrie County, Illinois?

Moultrie County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Moultrie County Health Department - Environmental Health. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Moultrie County, Illinois?

Land in Moultrie County runs about $11,597 per acre, based on the latest county data.

What is the water situation in Moultrie County?

Moultrie County gets about 39.9" of rain a year, with severe drought in roughly 2.7% of years.

How remote is Moultrie County?

A representative private-land location has about 33,651 people within a 30-minute drive and 1,398,645 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits, zoning and land rules in Moultrie County, Illinois