Bolthole Index

Warrick County, Indiana

Building permits, zoning and septic in Town of Lynnville, Indiana

Town of Lynnville, Indiana assigns building permits and inspections to the Warrick County Building Commissioner.1 The Warrick County Area Plan Commission serves Lynnville for planning and zoning administration.2 Private sewage disposal requires town approval, while Warrick County Sanitarian/EHS handles county septic permits.34

At a glance

Building permits
County Building Commissioner issues building permits inside Lynnville1
Zoning
Warrick County Area Plan Commission serves Lynnville; ask for parcel-specific standards2
Septic permits
County septic review plus town private sewage disposal approval43
Septic lot size
At least 20,000 square feet for subsurface soil absorption facilities5
RV and tiny-home living
We could not confirm Lynnville occupancy rules; ask Area Plan and Town Hall26
Private wells
Confirm local well approval with the Health Department; use an Indiana-licensed driller78

Who to call

Building permits

Warrick County Building Department

Building permits, plan review and construction inspections in Warrick County

812-897-6188

[email protected]

107 West Locust St, Suite 208, Boonville, IN 47601

Zoning

Warrick County Area Plan Commission

Planning and zoning administration serving Lynnville; floodplain questions

812-897-6190

[email protected]

107 West Locust St, Suite 201 Boonville, Indiana 47601

Septic permits

Warrick County Health Department Sanitarian/EHS

Septic (on-site sewage) permits, site evaluations and repairs, plus water-supply testing for Warrick County

812-217-5528

[email protected]

Old Courthouse 107 West Locust St, First Floor Boonville, IN 47601

Also useful

Lynnville Town Hall

Town sewer-service questions and referral to the Superintendent

(812) 922-5111

[email protected]

P.O. Box 99, 207 Main Street

Building permits

Warrick County Building Commissioner — Lynnville authority

Building permits and inspections inside Lynnville under the town agreement

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

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

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Do you need a building permit in Town of Lynnville, IN?

Lynnville’s town code designates Warrick County to administer building rules and inspections, and authorizes the County Building Commissioner to issue building permits within the participating jurisdictions.1 Contact the Warrick County Building Department before starting a house, addition or alteration and ask which building approvals and inspections apply to your proposed work.9 We could not confirm the complete Lynnville permit-trigger list or an owner-builder exemption; ask the Building Department about your specific project.9 Indiana’s adopted residential code applies to construction within its scope, so a local permit question and the applicable construction standards are separate questions to settle.10

Does Town of Lynnville have zoning, lot-size or setback rules?

The Warrick County Area Plan Commission explicitly includes Lynnville in its planning service area and describes administration of zoning ordinances and land development among its functions.2 Ask Area Plan for the zoning district, allowed residential use, setbacks and Improvement Location Permit requirements for the actual Lynnville parcel before choosing a house footprint.2 We could not confirm Lynnville’s complete dimensional schedule or minimum dwelling size.2 Lynnville does have a specific sewage-related lot restriction: a private system using subsurface soil absorption facilities cannot receive a town permit on a lot smaller than 20,000 square feet.5 That restriction applies to the sewage system, rather than establishing a general zoning lot-size rule.5

How do septic permits work inside Town of Lynnville?

Lynnville allows private sewage disposal where public sanitary or combined sewer is unavailable, subject to the town’s approval requirements; connection is required when public sewer becomes available.11 Ask Town Hall to connect you with the Superintendent about sewer availability before budgeting for septic.6 Warrick County Sanitarian/EHS performs site evaluations, issues county septic permits and oversees septic improvements or repairs.4 Lynnville separately requires a town application with requested plans and specifications before private sewage construction.3 Notify the Superintendent before underground portions are covered and when the work is ready for final inspection; town approval becomes effective only after satisfactory installation.12 Coordinate both offices before excavation.34

Can you live in an RV or tiny home in Town of Lynnville?

We could not confirm Lynnville rules for living in an RV, occupying a tiny home or camping temporarily on a private lot; ask Area Plan and Town Hall for an answer tied to the parcel and proposed duration.26 Indiana’s campground RV rule applies to regulated campground settings and does not establish general permission to use an individually deeded lot as a permanent RV residence.13 A proposed dwelling that cannot connect to sanitary sewer must have a compliant residential on-site sewage system under Indiana’s sanitation rules.14 Lynnville’s private sewage disposal requirements also apply where public sewer is unavailable, including town approval and eventual connection when sewer becomes available.11

What are the steps to building a home in Town of Lynnville?

Start with Area Plan: ask for the parcel’s zoning requirements and floodplain review, because Lynnville’s flood provisions assign responsibilities to the County Area Plan Commission Executive Director.215 Next, ask Town Hall about sewer availability and the town private sewage application if sewer is unavailable; coordinate the septic site evaluation with Warrick County Sanitarian/EHS.634 Then prepare the building application: the county Building Department requires blueprints or computer-generated house plans for residences.9 Ask the Building Department to identify the inspection sequence before construction begins.1 For property outside Lynnville town limits, use the Warrick County guide for the county building-permit answer.16

Watch-outs

  • Lynnville’s septic lot-area threshold does not establish that a lot is suitable for a drain field; arrange the county site evaluation before committing to private sewage disposal.54
  • Lynnville’s floodplain provisions involve Area Plan, and most Indiana floodway development activities also fall under DNR Division of Water jurisdiction, subject to exemptions.1517
  • We could not confirm a Lynnville private-well permit requirement; ask Warrick County Sanitarian/EHS about local approval before drilling.78

Sources

  1. Warrick County Building Commissioner — Lynnville authority (codelibrary.amlegal.com)
  2. Warrick County Area Plan Commission (warrickcounty.gov)
  3. § 52.17 Private Sewage Disposal Systems (Town of Lynnville), quoted and re-checked
  4. Sanitarian/EHS | Warrick County, quoted and re-checked
  5. § 52.17 Private Sewage Disposal Systems (Town of Lynnville), quoted and re-checked
  6. Lynnville Town Hall (townoflynnville.com)
  7. Recommended Standards For Private Water Wells (Indiana statewide rule), quoted and re-checked
  8. Warrick County Health Department Sanitarian/EHS (warrickcounty.gov)
  9. Warrick County Building Department (warrickcounty.gov)
  10. Rules of the Indiana Fire Prevention and Building Safety Commission (Indiana statewide rule), quoted and re-checked
  11. § 52.17 Private Sewage Disposal Systems (Town of Lynnville), quoted and re-checked
  12. § 52.17 Private Sewage Disposal Systems (Town of Lynnville), quoted and re-checked
  13. Environmental Public Health: 410 IAC 6-71 Campgrounds (Indiana statewide rule), quoted and re-checked
  14. 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
  15. § 151.01 Participation in the National Flood Insurance Program (Town of Lynnville), quoted and re-checked
  16. Building Department | Warrick County (2026 county census)
  17. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked

Written October 12, 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 Town of Lynnville

Town of Lynnville’s own rules

  • Minimum lot sizeSpecified

    Lots inside Lynnville town limits using subsurface soil absorption facilities for private sewage disposal.

    • No permit may be issued for a private sewage disposal system employing subsurface soil absorption facilities when the lot is less than 20,000 square feet.
    • This is a private sewage disposal limitation, not a general zoning lot-size schedule.

    minimum lot area: >= 20000 square feet (private sewage disposal systems employing subsurface soil absorption facilities)

    “No permit shall be issued for any private sewage disposal system employing subsurface soil absorption facilities where the area of the lot is less than 20,000 square feet.”
  • Septic inspectionRequired

    Private sewage disposal system installation inside Lynnville town limits.

    • The Superintendent may inspect at any construction stage.
    • The applicant must notify the Superintendent for final inspection before underground portions are covered.
    • Inspection is to be made within 24 hours after notice.
    • The permit is not effective until installation is completed to the Superintendent's satisfaction.
    “A permit for a private sewage disposal system shall not become effective until the installation is completed to the satisfaction of the Superintendent. He or she shall be allowed to inspect the work at any stage of construction and, in any event, the applicant for the permit shall notify the Superintendent when the work is ready for final inspection, and before any underground portions are covered. The inspection shall be made within 24 hours of the receipt of notice by the Superintendent.”
  • Off-grid sanitationLimited

    Private sewage disposal systems serving property inside Lynnville town limits.

    • Private sewage disposal is contemplated where public sanitary or combined sewer is unavailable.
    • A town permit, inspection, fee, State Board of Health compliance, and possible Health Officer requirements apply.
    • Connection to public sewer is required when it becomes available.
    “Where a public sanitary or combined sewer is not available under the provisions of § 52.16 (G), the building sewer shall be connected to a private sewage disposal system complying with the provisions of this section.”
  • Building in a floodplainLimited

    Floodplain management and development administration inside Lynnville town limits.

    • The town participates in the National Flood Insurance Program.
    • The County Area Plan Commission Executive Director is vested with floodplain-related responsibilities and authority.
    • The town must maintain adequate land-use and control measures in hazard areas.
    • The cited section does not provide the complete development-permit standards or numeric floodplain limits.
    “Assures the Federal Insurance Administration that it will enact as necessary and maintain in force in those areas having flood, mudslide (i.e., mudflow), or flood-related erosion hazards, adequate land use and control measures with effective enforcement provisions consistent with the criteria set forth in § 59 et seq. of the National Flood Insurance Program Regulations, being 42 U.S.C. §§ 4001 et seq.;”
  • Permit processPartial

    Private sewage disposal permit process inside Lynnville town limits.

    • Apply on a town-furnished form before construction.
    • Provide plans, specifications, and other information requested by the Superintendent.
    • Pay the applicable permit and inspection fee.
    • Notify the Superintendent before underground work is covered and when ready for final inspection.
    • The permit becomes effective only after installation is completed to the Superintendent's satisfaction.
    “The application for such permit shall be made on a form furnished by the town, which the applicant shall supplement by any plans, specifications and other information as are deemed necessary by the Superintendent. A permit and inspection fee of $25 shall be paid to the town at the time the application is filed.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Lynnville or Warrick County directly.

  • Building permit — Building permits for construction inside Lynnville town limits.
  • Owner-builder exemption — Owner-builder exemptions inside Lynnville town limits.
  • Certificate of occupancy — Certificates of occupancy inside Lynnville town limits.
  • Local zoning — Land inside Lynnville town limits.
  • Zoning districts — Zoning districts inside Lynnville town limits.
14 more unanswered
  • Minimum dwelling size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • 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 Town of Lynnville publishes no rule on the point, not that none exists. Warrick County’s page lists the county offices to call.

← All of Warrick County: county rules, score and offices