Bolthole Index

Monroe County, Illinois

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

53Index Score / 100
#66 of 102 in Illinois

Unincorporated Monroe County, Illinois requires building permits for covered construction, additions and structural alterations, and the county has zoning.12 The Monroe County Zoning Office issues building and electrical permits, handles zoning and flood zoning, and offers online applications through Cloudpermit.3 Private septic installation or repair requires a permit from the Monroe County Health Department.4

At a glance

Building permit
Required for covered construction1
Zoning
County zoning applies in unincorporated areas5
Septic
County permit required before installation or repair4
RV living
Not confirmed; temporary use needs written permission unless specifically allowed6
Tiny home
Classification must be confirmed; residential minimum is generally 900 square feet7
Owner-builder
No exemption confirmed8
Private well
State or approved local permit required before work9

Who to call

Building permits

Monroe County Zoning & Building

Building and electrical permits, zoning, flood zoning, appeals and code enforcement

618-939-8681 ext. 260

100 S. Main St., Waterloo, IL 62298

Online permits →

Septic permits

Monroe County Health Department — Environmental Health

Environmental health questions involving private sewage disposal and wells

618-939-3871 ext. 212

[email protected]

1315 Jamie Lane, Waterloo, IL. 62298

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 Monroe County, Illinois?

Yes. Unincorporated Monroe County requires a permit for covered nonagricultural construction, additions and structural alterations.10 Agricultural buildings are not a blanket exception: the county material identifies a permit trigger for agricultural buildings or structures exceeding $500 in cost or 100 square feet, but the complete provision should be checked for its exceptions.10

New-home construction requires 10 inspections, with the building inspector determining the inspection schedule; the published inspection charge is $70 per inspection.11 Before a regulated structure, use or lot is occupied or operated, the county requires a final certificate of zoning compliance after inspection confirms the approved work was completed as planned.12

Who issues building permits in Monroe County, Illinois?

Monroe County Zoning & Building is the permit office for unincorporated land; its official page says the office issues building and electrical permits and handles zoning, flood zoning, appeals and code enforcement.3 Reach the office at 618-939-8681 ext. 260 or visit 100 S. Main St., Waterloo, IL 62298.3

Applicants may apply and track a building permit online through Cloudpermit, including requesting inspections and receiving results by email.3 Paper forms can instead be submitted by email or dropped off at the Zoning Office.3 The published building-permit fee is $5 per $1,000 of structure value, plus $70 for each inspection.13

Does Monroe County, Illinois have zoning?

Yes. The county zoning code applies throughout unincorporated Monroe County, and its zoning articles also apply inside municipalities that have not adopted their own zoning code.5 A municipality with its own zoning code follows that municipal code instead, so confirm whether a parcel lies inside municipal limits before relying on county rules.14

Lot area, dimensions, setbacks and height depend on the zoning district.151617 Residences generally need at least 900 square feet of living area, although district-specific provisions can apply.7 Agricultural buildings must still meet district setbacks, and county provisions apply to any part of a tract that stops being used solely for agriculture.18

How do septic permits work in Monroe County?

The Monroe County Health Department regulates private sewage disposal for residences and facilities not served by public sewer.19 A permit is required before installing or repairing a private sewage system, and the department reviews applications against state health requirements and the county private sewage ordinance.4 Call Environmental Health at 618-939-3871 ext. 212 or email [email protected] before designing the system.20

Only 11.6% of county soils are rated without severe limitations for a conventional septic drain field, so septic feasibility deserves early site work.21 The department also offers property-transfer or loan inspections for $200 after an application is completed.22

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

Do not assume an RV can serve as a residence on unincorporated land. Monroe County requires written permission before land or a temporary structure is used for a temporary purpose unless the zoning code specifically allows it, while private recreation areas or camps are special uses in the Agricultural District.6 Ask Zoning & Building how the parcel's district treats the proposed RV use before moving in.3

The county code does not define or resolve tiny-home occupancy as a separate category. Manufactured homes have their own district, lot, foundation and anchoring conditions, while residences generally require at least 900 square feet of living area.237 Residential use of an accessory building is prohibited under the reviewed provision.24

Building a home in Monroe County: what are the steps?

  1. Confirm whether the parcel is unincorporated and identify its zoning district, because county and municipal zoning jurisdiction can differ.14
  2. Ask Zoning & Building to confirm lot area, setbacks, access and flood constraints before finalizing a site plan.151625
  3. Have Environmental Health evaluate the private sewage proposal before construction where public sewer is unavailable.19
  4. Submit the building application through Cloudpermit or by email or drop-off at the Zoning Office.3
  5. Obtain approval for the driveway entrance from the road's legal maintenance authority; the County Engineer approves county Highway Entrance Permits.26
  6. Schedule the required inspections and obtain the final certificate of zoning compliance before occupancy.1112

What should you check before buying land in Monroe County?

Start with jurisdiction, zoning district, legal access, septic feasibility, water and flood exposure. County zoning applies to unincorporated land, while a municipality may have its own code.14 A driveway entrance needs approval from the roadway's maintenance authority, and work in a state-highway right-of-way requires an IDOT permit before work starts.2627

For a private well, Illinois requires a permit from the state or an approved local health department before construction, modification or sealing begins.9 Flood-hazard construction is reviewed for flood safety and must meet protective design requirements.25 The county's effective property-tax rate is about 1.7%, and the median annual property-tax bill is $4,523.2829

Watch-outs

  • An owner-builder exemption was not confirmed in the reviewed county materials; ask Zoning & Building before assuming self-performed work changes permit requirements.83
  • Tiny-home classification and occupancy remain unconfirmed, so get a written parcel-specific determination from Zoning & Building before purchase.3
  • Only 11.6% of Monroe County soils are rated without severe limitations for a conventional septic drain field.21

Sources

  1. Monroe County Code of Ordinances (2026 county census)
  2. Chapter 40 Zoning Code (2026 county census)
  3. Monroe County Zoning & Building (monroecountyil.gov)
  4. Private Sewage Disposal Systems, quoted and re-checked
  5. Chapter 40 Zoning Code, quoted and re-checked
  6. Chapter 40 Zoning Code, quoted and re-checked
  7. Chapter 40 Zoning Code, quoted and re-checked
  8. (2026 county census)
  9. 77 Ill. Admin. Code 920.130, Water Well Permit Requirements (Illinois statewide rule), quoted and re-checked
  10. Monroe County Code of Ordinances, quoted and re-checked
  11. Application for Building Permit, quoted and re-checked
  12. Chapter 40 Zoning Code, quoted and re-checked
  13. Fee Schedule, quoted and re-checked
  14. Zoning & Building, quoted and re-checked
  15. Chapter 40 Zoning Code, quoted and re-checked
  16. Chapter 40 Zoning Code, quoted and re-checked
  17. Chapter 40 Zoning Code, quoted and re-checked
  18. Chapter 40 Zoning Code, quoted and re-checked
  19. Private Sewage Disposal Systems, quoted and re-checked
  20. Monroe County Health Department — Environmental Health (monroecountyhealth.org)
  21. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  22. Private Sewage Disposal Systems, quoted and re-checked
  23. Chapter 40 Zoning Code, quoted and re-checked
  24. Chapter 40 Zoning Code, quoted and re-checked
  25. Monroe County Code of Ordinances, quoted and re-checked
  26. Monroe County Code of Ordinances, quoted and re-checked
  27. Highway Permits (Illinois statewide rule), quoted and re-checked
  28. Effective property tax rate: Bolthole Index county data
  29. Median property tax bill: Bolthole Index county data

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.

Found land here? Start a Property Hunt →

County locator

Monroe County in Illinois

53
County map
Monroe County highlighted among the Illinois counties · colored by Index score

How Monroe County scores

Seclusion28100% ev.
Self-Sufficiency71100% ev.
Admin Boringness4390% ev.
Durability59100% ev.
Property Autonomy42100% ev.
Carry Cost55100% 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 →

$332kTypical home
1.7%Property tax
$8,117Land / acre
43"Annual rain
3.1% of yrsSevere drought
15.8 / yr (+13.6)Mid-century 100°F days
16.5 daysMid-century dry spell
2.03" (+9.9%)Mid-century 1-day rain
1.88×Wildfire change factor
100%Forward climate coverage
$1,763Home insurance / yr
4.1% / yrInsurance growth
0.23%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
3,192,982People within 2 hr
150,333Radius comparison (15 mi)
90.7People / sq mi
0.9%Federal land
78.9%Land at 15% slope or less
11.6%Septic soil without severe limits
27,799 acWorkable land screen
29.7%Wooded land
54.8 tonsBiomass / forest ac
56.6°FAvg temp

Scout Monroe County

Camp here before you commitBook a few nights nearby on Hipcamp →Already own land here?Earn money hosting campers — get $100 when you become a Hipcamp host →

Some links are affiliate or referral links — we may earn a commission, at no cost to you.

Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

Each button opens a current land search for Monroe County. Listing sites control their own results and filters.

Analyze a property
Add setup-cost allowances

Use rough quotes or placeholders. Blank fields count as $0.

Working estimate

—land + entered setup costs
Asking $ / acre
—
Setup allowance
—
All-in $ / acre
—

A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.

Before an offer

Parcel due diligence

0/8 checked

Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.

Answers from the rulebook for Monroe County

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

Monroe County rules

  • Building permitRequired

    Nonagricultural construction, additions, and structural alterations governed by the county zoning code.

    • The county zoning code separately states that agricultural buildings or structures exceeding $500 in cost or 100 square feet are subject to a permit requirement; the complete agricultural provision should be checked for all exceptions.
    “No nonagricultural building or structure shall be erected, added to, or structurally altered until a permit has been issued by the Administrator.”
  • Building code adoptedAdopted (with conditions)

    County-enforced building codes in unincorporated Monroe County.

    • The county FAQ identifies the 2006 International Building Code, 2005 National Electrical Code, and current Illinois State Plumbing Code.

    International Building Code: 2006 · National Electrical Code: 2005 · Illinois State Plumbing Code: most current

    “What building codes does Monroe County enforce? 2006 International Building Code 2005 National Electrical Code Illinois State Plumbing Code (most current)”
  • InspectionsRequired

    New-home construction and other permitted construction subject to county inspections.

    • New home construction requires 10 inspections.
    • The number of inspections is determined by the building inspector.
    • The listed inspections cover structural, plumbing, and electrical stages.

    new-home inspections: 10 inspections · inspection fee: 70 USD per inspection

    “Inspections - $70.00 each (# of inspections determined by the building inspector). 2. New home construction has a required 10 inspections.”
  • Certificate of occupancyRequired

    Final certificate of zoning compliance for structures, uses, and lots governed by the county zoning code.

    • A final certificate must be issued before use, occupancy, or operation.
    • The administrator must determine by inspection that work authorized by the initial certificate was completed according to approved plans.
    “No lot or part thereof recorded or developed after the effective date of this Code, and no structure, part, use, or part thereof, that has been erected, enlarged, altered, relocated, or reconstructed after the effective date of this Code shall be used, occupied, or put into operation until a final certificate of zoning compliance has been issued.”
  • County-wide zoningPresent (with conditions)

    County zoning in unincorporated Monroe County and, under the code, municipalities that have not adopted their own zoning code.

    • The zoning code states it applies throughout the unincorporated portion of the county.
    • The zoning articles also apply inside municipalities that have not adopted their own zoning code.
    “This entire Code shall be applicable throughout the unincorporated portion of the County. Moreover, the articles of this Code pertaining to zoning shall be applicable within the corporate limits of municipalities which have not adopted their own Zoning Code.”
  • Local zoningVaries (with conditions)

    Aggregate local zoning across Monroe County, including county zoning in unincorporated areas and municipal zoning where a municipality has adopted its own code.

    • The county code governs unincorporated areas.
    • Municipalities with their own zoning code are governed by that municipal code; municipalities without their own zoning code may be subject to the county zoning articles.
    “This entire Code shall be applicable throughout the unincorporated portion of the County. Moreover, the articles of this Code pertaining to zoning shall be applicable within the corporate limits of municipalities which have not adopted their own Zoning Code.”
  • Zoning districtsPublished (with conditions)

    County zoning districts and zoning-map information.

    • The county publishes a zoning map link and a zoning code containing district-specific regulations.
    • Municipal zoning districts may be governed by municipal codes where municipalities have adopted their own zoning code.
    “The boundaries of the listed zoning districts are hereby established as shown on the official zoning map of the County. This official zoning map, including all notations and other information hereto, is hereby made a part of this Code by reference.”
  • Minimum dwelling sizeSpecified

    Residences in specified county zoning districts and mobile homes.

    • The Agricultural District provisions require a minimum living area of 900 square feet.
    • The code also states that residences generally must have at least 900 square feet of living area and be built to the adopted Monroe County Building Code.
    • Other district-specific provisions may apply.

    minimum living area: >= 900 square feet

    “Living area shall be a minimum of nine hundred (900) square feet.”
  • Minimum lot sizeDistrict specific (with conditions)

    Lots subject to county zoning district requirements.

    • Every lot must independently meet the minimum area, dimensions, and setback requirements of its zoning district.
    • The code references Schedule 2A for area and bulk regulations.
    “Except as specifically provided otherwise elsewhere in this Code, every lot must meet the minimum area, minimum dimensions, and minimum setback requirements of the district in which it is located independently; that is, without counting any portion of an abutting lot.”
  • SetbacksDistrict specific (with conditions)

    County zoning setbacks in unincorporated areas.

    • Setbacks vary by zoning district.
    • In certain built-up residential or business areas, the average existing front setback applies, with a minimum of 15 feet and maximum required setback of 50 feet.

    built-up-area minimum front setback: >= 15 feet · built-up-area maximum required front setback: <= 50 feet

    “provided, however, that in any built-up area, no front setback less than fifteen (15) feet shall be permitted, nor shall any front setback greater than fifty (50) feet be required.”
  • Building heightDistrict specific (with conditions)

    Building-height limits in county zoning districts and manufactured-home parks.

    • Height limits vary by district and use.
    • No structure in a manufactured-home park may exceed 20 feet.

    manufactured-home park structure maximum height: <= 20 feet

    “No structure in any manufactured home park shall be more than twenty (20) feet in height.”
  • Camping on your landLimited

    Temporary structures, temporary enterprises, and camping-related uses under county zoning.

    • Temporary structures or land may not be used for a temporary purpose without written permission unless the code specifically provides otherwise.
    • Private recreation areas or camps are listed as special uses in the Agricultural District.
    “Except as specifically provided otherwise in this Code, no temporary structure shall be used or occupied for any purpose, and no land shall be used for any temporary enterprise except by written permission of the Administrator.”
  • Manufactured homesLimited

    Manufactured homes on individual lots and in manufactured-home parks.

    • Individual manufactured homes may be permitted in the R-MH Manufactured Home District only if district minimum lot size and setbacks are observed, one home is placed per lot, and a permanent perimeter foundation and anchors are provided.
    • Manufactured-home parks require site-plan approval and generally must be located in the R-MH district.
    • Agricultural District manufactured homes are listed as special uses.

    manufactured-home park minimum area: 2 acres · manufactured-home park space minimum area: 8000 square feet · manufactured-home park structure maximum height: <= 20 feet

    “Manufactured homes on individual lots (as opposed to mobile home parks) may be permitted in R-MH Manufactured Home District provided they comply with all the following supplemental regulations: (A) Same Lot Size/Setbacks. No manufactured home shall be placed on any individual lot unless the district's minimum lot size and setback requirements are strictly observed. (B) One Per Lot. Not more than one (1) manufactured home shall be placed on any individual lot.”
  • Accessory dwellingsProhibited

    Residential use of an accessory building.

    • This source addresses accessory buildings; it does not resolve whether an attached accessory dwelling within a principal building is treated differently.
    “No accessory building shall be used for residential purposes.”
  • Who permits septicCounty (with conditions)

    Private sewage disposal systems in Monroe County.

    • The county health department program applies to facilities and residences not served by public sewer.
    • Applications are reviewed against the Illinois Department of Public Health Act and Code and the Monroe County Private Sewage Ordinance.
    “The Private Sewage Disposal Program regulates methods of sewage disposal from facilities and residences that are not served by public sewer systems.”
  • Septic permitRequired

    Installation or repair of a private sewage disposal system.

    • All private sewage applications are reviewed and consultations are conducted against current Illinois Department of Public Health requirements and the Monroe County Private Sewage Ordinance.
    “A permit must be obtained prior to the installation or repair of a private sewage disposal system.”
  • Septic inspectionLimited

    Complaint-related inspections and property-transfer or loan inspections for private sewage systems.

    • Complaints about nuisance conditions or possible failing systems are inspected.
    • Property-transfer or loan inspections are available for a $200 fee.
    • An application must be completed before scheduling a property-transfer or loan inspection.

    property transfer or loan inspection fee: 200 USD

    “Complaints regarding nuisance conditions or possible failing private sewage disposal systems may be filed with this department. All complaints are inspected in accordance with the Illinois Department of Public Health Private Sewage Disposal Licensing Act & Code and/or the Monroe County Private Sewage Ordinance.”
  • Off-grid sanitationLimited

    Sanitation for residences and facilities not served by public sewer.

    • A private sewage disposal permit is required before installation or repair.
    • The proposed system must satisfy current Illinois Department of Public Health requirements and the Monroe County Private Sewage Ordinance.
    “The Private Sewage Disposal Program regulates methods of sewage disposal from facilities and residences that are not served by public sewer systems. By ensuring that all sewage is discharged to a properly designed and operated private sewage disposal system, the Private Sewage Disposal Program helps eliminate transmission of disease and nuisances.”
  • Agricultural exemptionConditional

    Land used primarily for agriculture and buildings or structures used primarily for agricultural purposes.

    • Agricultural buildings and structures must meet district setback requirements.
    • If part of a tract ceases to be used solely for agricultural purposes, all code provisions apply to that part.
    “The provisions of this Article shall not be exercised so as to impose regulations with respect to: (A) land used or to be used primarily for agricultural purposes; OR (B) the erection, maintenance, repair, alteration, remodeling, or extension of buildings or structures used or intended to be used for primarily agricultural purposes upon agricultural land, provided, that buildings or structures to be used for agricultural purposes shall be required to meet the district setback requirements.”
  • Driveway accessRequired

    Highway entrances and driveways under Monroe County street regulations.

    • The entrance location must be approved by the legal maintenance authority for the roadway.
    • Culvert size is determined by the highway authority, with a 15-inch minimum unless special road-authority approval is provided.
    • The County Engineer must approve Highway Entrance Permits.

    culvert minimum: >= 15 inches (unless special road-authority approval)

    “Location of entrance shall be approved by the legal maintenance authority for the subject roadway. Culvert size shall be determined by highway authority with a fifteen (15) inch minimum unless provided special road authority approval. The County Engineer has to approve Highway Entrance Permits.”
  • Building in a floodplainRequired

    Development and construction in county flood-hazard locations.

    • The Zoning Administrator reviews building permit applications for flood safety.
    • Flood-hazard construction must be designed and anchored against flotation, collapse, or lateral movement; use flood-resistant materials and utility equipment; minimize flood damage; provide adequate drainage; and elevate or construct public utilities to minimize or eliminate flood damage.
    “The Zoning Administrator, in reviewing all applications for construction in flood hazard locations within the County shall require that any such proposed construction must: (A) Be designed and anchored to prevent the flotation, collapse or lateral movement of the structure or portions of the structure due to flooding. (B) Use construction materials and utility equipment that are resistant to flood damage.”
  • Permit feesPublished (with conditions)

    County zoning and building permit fees.

    • Building permit fees are based on structure value plus inspection fees.
    • Special-use, variance, amendment, rezoning, appeal, and cell-tower fees have additional published amounts and, in some cases, publication and certified-mail costs.

    building permit fee: per 5 USD per $1,000 of structure value (plus inspection fees) · inspection fee: 70 USD per inspection · special use fee: 400 USD (plus publication and certified-mail costs)

    “Building Permit – $5 per $1,000 of value plus inspection fees Inspection Fee – $70 per inspection”
  • Permit processPublished (with conditions)

    County building-permit application process.

    • Applications may be submitted online through Cloudpermit or by email/drop-off at the Zoning Office.
    • Applicants can track applications and request inspections through Cloudpermit.
    “The Cloudpermit building permit system allows you to apply for and to see the status of your applications anywhere, at any time. You can start an application and finish it later, and receive email updates on the status of your permit application. You can even request building inspections with results sent to your email.”

Illinois rules that apply here

  • Well permitRequired

    Construction of a new water well, modification of an existing water well, or sealing of an abandoned water well in Illinois.

    • A permit must be obtained from the Illinois Department of Public Health or an approved local health department before work begins.
    • The application must use Department or approved local health department forms and include a plan and drawing of the proposed construction.
    • The plan must include the lot size, slope, property lines, distances to septic tanks, abandoned wells, property lines, seepage fields, sewers, and other contamination sources; driller license number and name; estimated daily pumping capacity if greater than 100,000 gallons per day; well location; owner name and address; well type; estimated depth; well-use type; and proposed aquifer.
    • The permit is void if construction has not commenced within one year after issuance.
    • The permit fee for constructing, deepening, modifying, or sealing a water well may not exceed $100.
    • The Department will deny a permit request when available information indicates groundwater contamination exceeds Class I groundwater standards, subject to the treatment approval provision in subsection (f)(2).
    • The permittee must notify the Department, approved local health department, or approved unit of local government by telephone or in writing at least two days before work begins.

    maximum water well permit fee: <= 100 USD · permit commencement deadline: 1 year after issuance (Permit is void if construction has not commenced within that period.) · pre-work notification: >= 2 days (Notification may be by telephone or in writing.)

    “A permit to construct a new water well, modify an existing water well or seal an abandoned water well shall be obtained from the Department or approved local health department prior to start of work.”
  • 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.”
  • 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.”
  • 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).”

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 or zoning permits.
  • Lot coverage — Lot coverage limits under Monroe County zoning.
  • Tiny homes — Tiny-home occupancy.
  • Mandatory utility hookup — Water and sewer connection requirements.

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 Monroe County, Illinois

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

Monroe County scores 53/100 on the Bolthole Index, a solid county profile. Its strengths: workable self-sufficiency basics (43″/yr rainfall) and mixed durability signals. Watch-outs: about 150,333 people within 15 miles.

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

Monroe County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Monroe 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 Monroe County, Illinois?

Land in Monroe County runs about $8,117 per acre, based on the latest county data.

What is the water situation in Monroe County?

Monroe County gets about 43" of rain a year, with severe drought in roughly 3.1% of years.

How remote is Monroe County?

A typical private-land location has about 150,333 people within 15 miles and 4,089,788 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

How Monroe compares in Illinois

Compare side-by-side →See all 102 Illinois counties ranked →