Bolthole Index

Will County, Illinois

Building permits, zoning and septic in the Village of New Lenox, Illinois

The Village of New Lenox, Illinois requires building permits for most construction and homeowner projects through village Community Development.12 New Lenox sets its own zoning, while the Will County Health Department handles septic permits inside the village.34 Living or sleeping in a parked vehicle is prohibited except in a mobile home park.5

At a glance

Building permits
Required for most construction and homeowner projects; village Community Development issues them.12
Zoning
Village zoning applies inside New Lenox village limits.3
Septic permits
Will County Health Department; soil evaluation required before a new-system permit.46
RV living
No living or sleeping in a parked vehicle except in a mobile home park.5
Owner-builder
Homeowners working on their primary residence need no contractor account; permit and inspection requirements still apply.7
Building permit fees
Published minimum $75; garages, remodeling, room additions and in-ground pools are cost-based.8
Occupancy
New residential construction ends with inspections and a certificate of occupancy.9

Who to call

Building permits

Village of New Lenox — Community Development

Village building permit review and issuance; coordination of building, zoning and engineering inquiries.

815-462-6490

1 Veterans Parkway, New Lenox, Illinois 60451

Zoning

Village of New Lenox — Planning and Development

Village zoning, land use, development review and planning inquiries.

815-462-6490

planning@newlenox.net

1 Veterans Parkway, New Lenox, Illinois 60451

Building permits

Village of New Lenox — Building Inspections / Online Permitting

Online building permit application support, including driveway applications.

815-462-6490

buildinginspections@newlenox.net

1 Veterans Parkway

Septic permits

Will County Health Department — Private Sewage Program (Joliet Main Office)

Private sewage system permits and inspections in Will County, including New Lenox; private well inspection inquiries.

815-727-8490

501 Ella Avenue, Joliet, IL 60433

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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Do you need a building permit in the Village of New Lenox, IL?

New Lenox requires building permits for most construction and homeowner projects, and contractors must register with the village before receiving a building permit and proceeding with work.1 The published minimum building permit fee is $75; garage, remodeling, room-addition and in-ground-pool fees depend on project cost.8

New Lenox applies an adopted residential code with municipal amendments that supersede the indicated code provisions.10 Homeowners applying to work on their own primary residence do not need a contractor account, but that accommodation does not waive building permits, inspections or code requirements.7

Who issues building permits in the Village of New Lenox?

Village Community Development reviews and issues New Lenox building permits and coordinates building, zoning, engineering and planning functions.2 Call Community Development at 815-462-6490 for the appropriate building permit application and project questions.2 Certain building permit types can be submitted through BS&A Online, including driveway applications.1112

For online application problems, contact buildinginspections@newlenox.net.11 New Lenox requires construction details, a survey or site plan, and the contractor name and registration number with the application.13 Smaller compliant, complete applications may receive same-day over-the-counter review; do not treat that possibility as a promised approval date.13

Does the Village of New Lenox have zoning and setback rules?

New Lenox administers its own zoning code inside village limits and publishes a zoning map with a district color legend.314 Ask village Planning and Development to confirm the parcel district and the proposed use before choosing a house plan; the department handles zoning and land-use inquiries.15

We could not confirm the complete village district requirements for minimum lot area, dwelling size, setbacks, coverage or height; ask Planning and Development for the requirements applying to the specific parcel.15 For land outside village limits, use the Will County guide: Will County zoning applies to unincorporated land, while New Lenox has its own zoning jurisdiction.163

How do septic permits work inside the Village of New Lenox?

Septic-system permitting inside New Lenox stays with the Will County Health Department Private Sewage Program rather than the village building counter.4 A new onsite wastewater system needs a health-authority permit before work begins, and a soil evaluation is required before permit issuance.6 New and repaired septic systems are subject to inspections.17

Only 0.2% of Will County soils are rated not limited for conventional septic drain fields; this countywide figure does not determine whether a particular New Lenox lot can support septic.18 Plan for a site evaluation and ask the health department whether an engineered system is needed before committing to a septic-dependent purchase.186

Can you live in an RV or tiny home in the Village of New Lenox?

New Lenox prohibits using any parked vehicle for living or sleeping unless the vehicle is located in a mobile home park.5 The prohibition includes recreational vehicles, so an RV on a building lot cannot serve as living accommodation under the stated exception unless it is in a mobile home park.5

We could not confirm a complete village rule for tiny-home occupancy, accessory dwellings, manufactured-home placement or tent camping; ask village Planning and Development about the specific structure and intended use.15 A small proposed home still needs review under New Lenox zoning and applicable residential construction requirements.310

How do you build a home in the Village of New Lenox, step by step?

Follow the village approval process and arrange septic review separately where an onsite system is proposed.136

  • Confirm the New Lenox parcel zoning and proposed use with village Planning and Development.315
  • For a septic-served home, obtain the required soil evaluation and health-authority septic permit before system construction.6
  • Submit the appropriate village building permit application, construction details, survey or site plan and contractor registration information.13
  • Wait until the building permit is paid for and issued before starting project work.11
  • Obtain approval at required construction inspection stages before proceeding.19
  • After completing inspections, have the general contractor apply for the certificate of occupancy certifying that the home is ready to occupy.9

What should you check before buying land in the Village of New Lenox?

Ask village Community Development about floodplain constraints before settling on a building location: New Lenox requires flood protection for buildings in special flood hazard areas, and its rules also address wells, sanitary sewer lines and onsite wastewater systems.220 Driveway construction and alterations are among village building permit types; confirm the proposed access with the village before designing the driveway.12

Will County Health Department inspects new and repaired wells, but we could not confirm the full new-well permitting route for a New Lenox parcel; ask the health department to identify the required approvals.17 Will County effective property tax rate is 2.3%, a countywide figure rather than a quoted tax rate for an individual village parcel.21

Watch-outs

  • A homeowner contractor-account accommodation does not remove New Lenox building permit or inspection requirements.7
  • Living or sleeping in a parked RV in New Lenox is prohibited except in a mobile home park, including when planning accommodation during construction.5
  • New Lenox residential construction must complete inspections before the general contractor applies for a certificate of occupancy.9

Sources

  1. Building Inspections | New Lenox, IL (Village of New Lenox), quoted and re-checked
  2. Village of New Lenox — Community Development (newlenox.net)
  3. Zoning | New Lenox, IL (Village of New Lenox), quoted and re-checked
  4. Wells and Septic Systems | Will County Health Department, quoted and re-checked
  5. New Lenox Code, Sec. 90-176, recreational vehicle parking (Village of New Lenox), quoted and re-checked
  6. Will County Health Department Board of Health packet — Private Sewage Disposal Ordinance, quoted and re-checked
  7. Online Permitting | New Lenox, IL (Village of New Lenox), quoted and re-checked
  8. Residential / Home Improvement Projects | New Lenox, IL (Village of New Lenox), quoted and re-checked
  9. Residential New Construction Inspections | New Lenox, IL (Village of New Lenox), quoted and re-checked
  10. New Lenox Code, Sec. 18-132, Special provisions (Village of New Lenox), quoted and re-checked
  11. Village of New Lenox — Building Inspections / Online Permitting (newlenox.net)
  12. Building Inspections | New Lenox, IL (Village of New Lenox), quoted and re-checked
  13. Online Permitting | New Lenox, IL (Village of New Lenox), quoted and re-checked
  14. Zoning | New Lenox, IL (Village of New Lenox), quoted and re-checked
  15. Village of New Lenox — Planning and Development (newlenox.net)
  16. Will County Code § 155-1.40 Applicability and Jurisdiction, quoted and re-checked
  17. Private Well and Septic Program, quoted and re-checked
  18. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  19. Residential New Construction Inspections | New Lenox, IL (Village of New Lenox), quoted and re-checked
  20. New Lenox Code, Sec. 46-34, requirements applicable to floodplain areas (Village of New Lenox), quoted and re-checked
  21. Effective property tax rate: Bolthole Index county data

Written October 11, 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 New Lenox

Village of New Lenox’s own rules

  • Building permitRequired

    Structural construction or remodeling inside New Lenox village.

    • The cited rule applies to construction or remodeling involving construction or alteration of a structural component.
    • parameters not applicable
    “A structural building permit must be obtained for any construction or remodeling activities that involve the construction or alteration of any structural component of a building.”
  • Owner-builder exemptionConditional

    A homeowner performing work on the homeowner's own primary residence inside New Lenox village.

    • The owner does not have to create a contractor account when applying online.
    • The homeowner must certify homeowner status in the applicant-information step.
    • The evidence does not waive the building-permit requirement.
    “Homeowners – If you are the homeowner applying to do work on your own primary residence, you do not have to create a contractor’s account.”
  • Building code adoptedAdopted (with conditions)

    One- and two-family dwellings inside New Lenox village.

    • Section 18-132 states that its listed provisions are additions to and supersede indicated provisions of the code adopted in Sec. 18-131.
    “The Village has adopted and enforces the following National and State Codes:”
  • InspectionsRequired

    Permitted new residential construction inside New Lenox village.

    • Inspection needs vary by project and construction stage.
    • Building inspections require 48-hour advance notice; water-meter and plumbing inspections require 24-hour advance notice.
    “A permit is the legal authority to begin a project and triggers an inspection process. Inspections need to be performed at various stages of a project to ensure compliance with the approved plans and construction codes.”
  • Certificate of occupancyRequired

    New residential construction inside New Lenox village.

    • The general contractor applies after completing all inspections.
    • The Village must approve required inspections and documentation.
    “The Village Of New Lenox Has Reviewed And Approved All Required Inspections And Documentation Necessary To Obtain The Certificate Of Occupancy.”
  • Local zoningPresent (with conditions)

    Land inside the Village of New Lenox corporate limits.

    • The Village page states that non-colored map properties are unincorporated properties under Will County zoning jurisdiction.
    “Properties that are non-colored (white) are not in the Village of New Lenox but rather are unincorporated properties that fall under zoning jurisdiction of Will County (815) 727-8850.”
  • Zoning districtsPublished (with conditions)

    Zoning districts and parcel zoning inside New Lenox village.

    • The Village notes that white/non-colored map properties are outside the Village and under Will County zoning jurisdiction.
    “As the Zoning Map is in a pdf format, one can pan around and zoom in or zoom out of various sections of the community by using the tool features. The zoning district color legend is located at the bottom of the map.”
  • Living in an RVProhibited

    Living or sleeping in a vehicle while parked inside New Lenox village.

    • The prohibition does not apply when the vehicle is located in a mobile home park.
    “No vehicle shall be used for living or sleeping purposes while parked in the village, unless it is located in a mobile home park.”
  • Subdividing landRegulated (with conditions)

    New subdivisions and related listed development within a special flood hazard area inside New Lenox village.

    • The cited review rule applies to new subdivisions, manufactured-home parks, annexation agreements, and PUDs within the special flood hazard area.
    • Plans must be reviewed for consistency with Sec. 46-34 and Divisions 3, 4, and 5 and the need to minimize flood damage.
    “New subdivisions, manufactured home parks, annexation agreements and planned unit developments (PUDs) within the special flood hazard area shall be reviewed to ensure that the proposed developments are consistent with section 46-34 and divisions 3, 4 and 5 of this article and the need to minimize flood damage.”
  • Driveway accessRequired

    Driveway projects inside New Lenox village.

    • The Village identifies driveways as a miscellaneous-permit use; the source does not state separate access-design standards.
    “For smaller projects such as fences, sheds, driveways, roofs and windows, the permit application may be reviewed over the counter and issued the same day provided all the information is accurate, complies with all Village codes and ordinances and the contractor is registered to work in the Village.”
  • Building in a floodplainRequired

    Buildings in a 100-year floodplain/special flood hazard area inside New Lenox village.

    • Existing buildings in a regulatory floodway must also meet the more restrictive appropriate-use standards in Division 4.
    • The listed protection criteria applies to new buildings, specified major alterations, manufactured homes on new or existing sites, and travel trailers installed for more than 180 days.
    “All buildings located within a 100-year floodplain, also known as a special flood hazard area, shall be protected from flood damage below the flood protection elevation.”
  • Permit feesPublished (with conditions)

    Residential home-improvement building permits inside New Lenox village.

    • The $75 minimum applies to the cited building-permit context.
    • Fees for garages, remodeling, room additions, and in-ground swimming pools are determined from project cost.

    minimum building permit fee: 75 USD (The page identifies project-cost-based fees for garages, remodeling, room additions, and in-ground swimming pools.)

    “The minimum fee for a building permit is $75.00. The fee for garages, remodeling, room additions and in-ground swimming pools will be determined based on the cost of the project.”
  • Permit processPublished (with conditions)

    Online building-permit applications inside New Lenox village.

    • A complete signed application, required plans and supporting documents/specifications are generally required.
    • A contractor performing the work must have current valid Village contractor registration.
    • No work may begin until the permit is paid for and issued.

    initial application status timeframe: <= 2 business days (After online submission, the applicant should receive a status within two business days.)

    “After submitting the application, the applicant should receive a status within two business days that will indicate:”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of New Lenox or Will County directly.

  • Minimum dwelling size — Single-family dwelling size in New Lenox residential zoning districts.
  • Minimum lot size — Residential zoning districts in New Lenox village.
  • Setbacks — Residential zoning districts in New Lenox village.
  • Lot coverage — Residential zoning districts in New Lenox village.
  • Building height — Residential zoning districts in New Lenox village.
12 more unanswered
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • 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 New Lenox publishes no rule on the point, not that none exists. Will County’s page lists the county offices to call.

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