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

[email protected]

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

[email protected]

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 [email protected].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. Residential Home Improvement Projects (Village of New Lenox), quoted and re-checked
  2. Village of New Lenox — Community Development (newlenox.net)
  3. Zoning (Village of New Lenox), quoted and re-checked
  4. Wells and Septic Systems | Will County Health Department, quoted and re-checked
  5. Sec. 90-176. Truck, semi trailer, trailer, pole trailer and 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 (Village of New Lenox), quoted and re-checked
  8. Residential Home Improvement Projects (Village of New Lenox), quoted and re-checked
  9. Residential New Construction & Inspections (Village of New Lenox), quoted and re-checked
  10. 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. Online Permitting (Village of New Lenox), quoted and re-checked
  13. Residential Home Improvement Projects (Village of New Lenox), quoted and re-checked
  14. Zoning (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 (Village of New Lenox), quoted and re-checked
  20. Sec. 46-34. Requirements applicable to all 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

    Most construction and homeowner projects inside New Lenox village.

    • The village page says the list is not complete; contact Community Development if unsure whether a permit is required.
    • Contractors must register with the village before receiving a permit and before proceeding.

    minimum building permit fee: 75 USD (Garages, remodeling, room additions and in-ground swimming pools are based on project cost.)

    “Building permits are required for most construction and homeowner projects.”
  • Owner-builder exemptionConditional

    A homeowner applying to perform work on the homeowner's own primary residence.

    • This is an account-registration accommodation, not a waiver of permit, code, inspection or occupancy requirements.
    “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

    Residential construction regulated by the Village of New Lenox Residential Code for One- and Two-family Dwellings.

    • The municipal amendments supersede indicated provisions of the adopted code.
    “The following words, provisions, and paragraphs are to be added to the following designated sections of the code adopted in section 18-131 . These provisions supersede the requirements of the indicated provisions of such code.”
  • InspectionsRequired

    Residential new construction inside New Lenox village.

    • Inspections occur at various construction stages and must be approved before proceeding.
    • Sewer/water lines, foundation, plumbing, building, concrete, final grade and meter inspections are listed.
    “Inspections need to be performed at various stages of a project to ensure compliance with the approved plans and construction codes.”
  • Certificate of occupancyRequired

    Residential new construction inside New Lenox village.

    • The application is the final step after completion of inspections.
    • The general contractor applies for the certificate.
    “The final step in the building process. After completing all of the inspections, the general contractor will apply for a certificate of occupancy, which certifies that the building has been completed per code and is ready to occupy.”
  • Local zoningPresent

    Land inside New Lenox village limits; the village administers its own Chapter 106 zoning code.

    “Note: In order to find information about our zoning codes, see the Government/Village Codes/Municode/Chapter 106 here.”
  • Zoning districtsPublished

    Zoning districts and parcel zoning inside New Lenox village.

    • The village provides a zoning map and district color legend.
    • Non-colored properties are outside the village and fall under Will County zoning; that statement does not apply to land inside village limits.
    “The zoning district color legend is located at the bottom of the map.”
  • Living in an RVProhibited

    Using a vehicle, including a recreational vehicle, for living or sleeping while parked in New Lenox village.

    • Exception: the vehicle may be used for living or sleeping if located in a mobile home park.
    • Separate residential-street parking limits also apply.
    “No vehicle shall be used for living or sleeping purposes while parked in the village, unless it is located in a mobile home park.”
  • Driveway accessLimited

    Driveway construction or alteration inside New Lenox village.

    • Driveway permits are listed among village permit types.
    • The opened sources did not establish a universal driveway-width or access-point rule.
    “Applications for certain building permits can now be submitted online to the Village of New Lenox through BS&A Online. The following permit types are permitted to be applied for online.”
  • Building in a floodplainRequired

    Development in New Lenox village special flood hazard areas and floodplains.

    • New buildings and certain alterations must be protected below the flood protection elevation.
    • Residential buildings generally must use elevation or landfill methods; nonresidential dry floodproofing is separately allowed.
    • New or replacement wells, sanitary sewer lines and onsite waste systems require watertight openings below the flood protection elevation.
    “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

    Village building permits for construction and homeowner projects.

    • Garage, remodeling, room-addition and in-ground-pool fees are determined by project cost.

    minimum building permit fee: 75 USD (Other listed project categories are cost-based.)

    “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)

    Village building permit applications inside New Lenox village.

    • Obtain the appropriate application.
    • Submit construction details, survey or site plan, and contractor name and registration number.
    • Review and approval may take up to two weeks.
    • Smaller projects may be reviewed over the counter and issued the same day if complete and compliant.
    “The review and approval time can be up to two weeks, so please allow ample time when planning your project. 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.”

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 — Residential dwelling size inside New Lenox village; district-specific dimensional schedules were not fully opened.
  • Minimum lot size — Residential lots inside New Lenox village.
  • Setbacks — Residential construction inside New Lenox village.
  • Lot coverage — Residential lots inside New Lenox village.
  • Building height — Buildings inside New Lenox village.
7 more unanswered
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • 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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