LaPorte County, IN zoning map, flood zone and property lines by address
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Towns in LaPorte County: Michigan City, Westville, Trail Creek.
Flood zone by address
ParcelSheet reads FEMA's National Flood Hazard Layer at the lot: the zone, whether it is a high risk area where lenders ask for flood insurance, and the base flood elevation where FEMA lists one. FEMA's countywide study for LaPorte County has 68 FIRM panels, the newest effective September 2022; coastal V zones, where waves add to the flood, are mapped along its shore.
The official panel and any Letter of Map Amendment are at FEMA's Map Service Center. An elevation certificate for a LaPorte house comes from a licensed surveyor and is often on file with the county or city building office.
Property lines
The parcel outline, parcel number and mapped size come from the Indiana statewide parcel layer (IndianaMap, from each county), so a LaPorte lot shows the same lines the county assessor draws. LaPorte County covers about 382,904 acres of land and 9,582 acres of water.
Mapped lines are approximate. The LaPorte County assessor keeps the parcel record (LaPorte County website); a licensed surveyor sets the true corners.
Zoning
LaPorte County zones its unincorporated land, and Michigan City, Westville, Trail Creek each zone the land inside their limits. ParcelSheet shows the use the county assessor lists for the lot and links the county plan commission for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Under Indiana's planning and zoning law (Indiana Code 36-7-4), local governments can allow an accessory dwelling unit on a lot with a house. Whether a LaPorte lot can add one depends on its district; the county plan commission has the rule. ParcelSheet shows the mapped lot size and the ground's slope, the first two things the question turns on.
Setbacks
Setbacks in LaPorte County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; the county zoning office gives them for the lot's district, and Michigan City, Westville, Trail Creek for land inside their limits.
Hazards that apply
- Storm surge. LaPorte County has coastal V zones on its FEMA map, so storm surge reaches its shore. The county's evacuation zones are on its emergency management site; ParcelSheet shows the FEMA zone and the 3 ft sea level rise map at the lot.
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a LaPorte lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in LaPorte County?
Type the address in the box above and ParcelSheet reads FEMA's flood zone at the lot's center. FEMA's countywide flood map for LaPorte County has 68 panels, the newest effective September 2022. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in LaPorte County?
Open the Indiana map, type the address, and the parcel outline from the LaPorte County assessor shows on the map with its parcel number and mapped size. Mapped lines are approximate; only a licensed surveyor sets the true corners.
What is my property zoned in LaPorte County?
Zoning in LaPorte County is set by the county for unincorporated land and by each city (such as Michigan City, Westville) inside its own limits. ParcelSheet shows the use code the county assessor lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in LaPorte County?
Under Indiana's planning and zoning law (Indiana Code 36-7-4), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In LaPorte County ask the zoning office for the lot's district first; ParcelSheet shows the lot size as mapped so you can see the room you have.
What can I build on 5 acres in LaPorte County?
Zoning in LaPorte County is set by the county for unincorporated land and each city inside its own limits (such as Michigan City, Westville). The zoning district decides the uses, how many homes and the smallest lot it allows on 5 acres. ParcelSheet shows the lot size as mapped and the use code on the parcel record; the planning office has the district and its rules. See the LaPorte County website.
What are the residential setbacks in LaPorte County (2026)?
Setbacks in LaPorte County come from the zoning code of the county, or of the city when the lot is inside city limits: the front, side and rear distances depend on the lot's district. ParcelSheet does not draw setback lines or give a number it did not read; the zoning office gives them for the district. See the LaPorte County website.
Next to LaPorte County: Porter County, St. Joseph County, Starke County.
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