Unincorporated LaPorte County, Indiana requires a building permit, and the LaPorte County Building Department issues permits, conducts inspections and issues certificates of occupancy12. County zoning also applies to unincorporated land3. A new home using onsite septic needs Health Department approval before the building permit can be issued4.
At a glance
- Building permit
- Required; issued and inspected by the LaPorte County Building Department1
- Zoning
- Yes, for unincorporated areas under LaPorte County's Joint Zoning Ordinance3
- Septic permit
- Required from the county Health Department before a new-home building permit is issued4
- Driveway permit
- Issued by the county Building Department for county roads; INDOT issues it for state highways25
- Well permit
- Confirm locally; Indiana says some local health departments require one6
- Off-grid septic
- A compliant onsite system is required where sewer is unavailable; holding tanks are tightly limited7
Who to call
Building permits
LaPorte County Building Department
Issues building permits and conducts inspections, issues certificates of occupancy, issues addresses, issues driveway permits for county roads (state highways go through INDOT instead), handles road/utility borings, registers contractors, and handles contractor and homeowner complaints in unincorporated LaPorte County only
809 State St., La Porte, IN 46350
Septic permits
LaPorte County Health Department - Environmental Health Services, Septic Division
Permits, reviews soil and site plans for, and inspects residential onsite (septic) systems in LaPorte County under ISDH Rule 410 IAC 6-8.3; a septic permit must be obtained before the county will issue a building permit for a new home; also publishes the county's well permit application
809 State Street, Suite 401, La Porte, IN 46350
Planning & zoning
LaPorte County Planner / Plan Commission
Administers LaPorte County's Joint Zoning Ordinance for unincorporated LaPorte County through the County Plan Commission; keeps zoning maps and fields questions on which zoning district covers a parcel
555 Michigan Avenue, Suite 203, La Porte, IN 46350
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 LaPorte County, Indiana?
Yes. LaPorte County's own building code requires a building permit for construction, and the county's Building Commissioner reviews every application for code and zoning compliance before issuing one1. The Building Department will not issue that permit until you already hold a septic permit for the site, since LaPorte County requires septic approval before a building permit is issued8. The Building Department also issues addresses, driveway permits for county roads, and certificates of occupancy, and it inspects the work once the permit is issued2. Its office keeps Monday-Friday 8 a.m. to 4 p.m. hours; reach it at 809 State St., La Porte, IN 46350, phone 219-326-68082.
Who is the LaPorte County Building Department, and how do you reach them?
The LaPorte County Building Department issues building permits, conducts inspections, issues certificates of occupancy, assigns addresses, issues driveway permits for county roads, handles road and utility boring permits, and registers contractors2. On a state highway, INDOT issues the driveway permit instead of the county5. The department only handles contractor and homeowner complaints in unincorporated LaPorte County, not inside its cities and towns2. If your project will disturb an acre of land or more, LaPorte County's stormwater director has requirements you need to satisfy before the Building Department will issue a permit2. Call the department at 219-326-6808 during its Monday-Friday, 8 a.m. to 4 p.m. hours before you buy, so you know what your specific project will need2.
Does LaPorte County have zoning?
Yes. LaPorte County administers its own Joint Zoning Ordinance for unincorporated areas of the county through the County Plan Commission, unlike counties that leave zoning entirely to individual towns3. The County Planner's office keeps the ordinance's zoning maps and fields questions about which zoning district applies to a parcel9. Reach the County Planner at 555 Michigan Avenue, Suite 203, La Porte, IN 46350, phone 219-326-6808 ext. 22539. Because a city or town inside LaPorte County can run its own separate zoning code, always confirm whether a specific parcel sits in unincorporated LaPorte County or inside one of its municipalities before assuming the county's Joint Zoning Ordinance applies3.
How do septic permits work in LaPorte County?
A septic permit for a new home in LaPorte County must be obtained before the county will issue a building permit, and the process runs through the LaPorte County Health Department's Septic Division8. You start by hiring a registered soil scientist to prepare a soil report for the site and submitting it to the Health Department along with an application; the department determines the system type, issues a specification sheet, and reviews a scaled site plan showing topography, the home site, the septic system and the tax parcel number before it signs off10. All residential septic systems in the county are designed, installed and inspected under state rule 410 IAC 6-8.3, the same rule that governs onsite sewage systems statewide, and Indiana's own framework leaves permitting to the local health department subject to state review1011. Soil is a real constraint here: only about 4.4% of LaPorte County's soils rate better than "very limited" for a conventional septic drain field in the USDA soil survey, so budget for a site evaluation and the real possibility of an engineered system12. As a general rule, plan on having an existing septic tank pumped every three to five years, and keep any new foundation at least ten feet from the septic field10.
Can you live in an RV or tiny home on your land in LaPorte County?
We could not confirm a LaPorte County rule that generally allows living in an RV or tiny home on private land. LaPorte County zoning applies in unincorporated areas, so the parcel's district and the proposed use matter3. Indiana's campground rules govern regulated campgrounds and temporary campgrounds, not residential occupancy on an individually deeded lot1314. Before placing or occupying a unit, give the County Planner the parcel number and ask whether the use is allowed and what permits and sanitation approval apply9. A dwelling without an available sewer connection must use a compliant onsite sewage system; drywells and cesspools are not allowed, while residential holding tanks are limited to specific approved situations7.
Building a home in LaPorte County: the steps, in order
- Confirm your parcel is in unincorporated LaPorte County, not inside a city or town with its own code, since that determines whether the county's Joint Zoning Ordinance and Building Department apply3.
- Hire a registered soil scientist for a soil report and apply for your septic permit with the LaPorte County Health Department's Septic Division; you cannot get a building permit until this is approved810.
- If your project will disturb an acre of land or more, contact LaPorte County's stormwater director about erosion-control requirements before you apply for a building permit2.
- Apply for your building permit through the LaPorte County Building Department, which reviews the application for zoning and code compliance and can also issue your address and any needed county driveway permit12.
- If your driveway will connect to a state highway instead of a county road, apply to INDOT for that driveway permit separately5.
- Keep the site ready for the Building Department's inspections through construction, then get your certificate of occupancy before moving in2.
What to check before you buy land in LaPorte County
Soil and septic: with only about 4.4% of LaPorte County's soil rating better than "very limited" for a conventional septic drain field, budget time and money for a site evaluation before you assume a lot will perc12. Terrain: about 99.1% of the county's land sits at a 15% slope or gentler, so LaPorte County is about as flat as rural land gets in this part of Indiana15. Flood: Indiana's Department of Natural Resources reviews and permits most development inside a floodway, while there is no state permit for the fringe portion of a floodplain, though local rules can still apply there1617. Water: if the parcel needs a new well, LaPorte County is one of the local health departments that publishes its own well permit application rather than leaving it unregulated, so check with the Health Department's Septic Division before you drill106. Subdivided land: if you're buying a lot cut from a larger tract outside a municipality, Indiana law requires a recorded, surveyor-certified plat approved by the county commissioners before any lots can be sold, so ask the seller for that recorded plat18. Taxes: LaPorte County's effective property tax rate runs around 0.8%, with a median property tax bill near $1,435 a year, both worth building into a rural-land budget1920.
Watch-outs
- A new LaPorte County home using onsite septic needs its septic permit before the building permit can be issued, so test the site and start with the Health Department4.
- LaPorte County's own Health Department page says a septic permit is not required for pumping a tank or for unclogging the line between the house, tank or distribution box, so don't assume every septic service call needs a new permit10.
- If your building project will disturb an acre of land or more, LaPorte County requires you to satisfy the stormwater director's requirements before the Building Department will issue your permit, so build that step into your timeline2.
Sources
- LaPorte County Code Ch. 151 - Building Permits (2026 county census)
- LaPorte County Building Department (laporteco.in.gov)
- LaPorte County Joint Zoning Ordinance (2026 county census)
- LaPorte County: Septic Division, quoted and re-checked
- INDOT Driveway Permit Guide 2024 (Indiana statewide rule), quoted and re-checked
- Recommended Standards For Private Water Wells (Indiana statewide rule), quoted and re-checked
- 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
- LaPorte County: Septic Division (2026 county census)
- LaPorte County Planner / Plan Commission (laporteco.in.gov)
- LaPorte County Health Department - Environmental Health Services, Septic Division (laporteco.in.gov)
- 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Environmental Public Health: 410 IAC 6-71 Campgrounds (Indiana statewide rule), quoted and re-checked
- Environmental Public Health: 410 IAC 6-71 Campgrounds (Indiana statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
- Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
- 2023 County Recorders Resource Library (Indiana statewide rule), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- 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.