Off-grid site report
Porter County, IN
41.4562, -87.0315Read this before you act on anything below. This is my researched starting point for Porter County, IN, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.
The local rulesPorter County, IN
Zoning & raw-land occupancy
Varies locallyUnincorporated Porter County is governed by the county's Unified Development Ordinance, adopted 2006-2007, which sets zoning and development standards. But incorporated towns and cities inside the county, like Valparaiso, Portage, Chesterton, and Porter, have their own separate zoning codes, so you need to confirm which jurisdiction your parcel sits in before assuming county rules apply. source
Dwellings, tiny homes & RVs
Unclear - verifyI couldn't find an official Porter County ordinance spelling out specific size rules for tiny homes or standards for living in an RV full time. Any permanent dwelling, tiny or otherwise, would still need to clear the county Building Department's adopted Indiana Residential Code plus UDO zoning and setback review, so this is one to confirm directly with them. source
Building permits & codes
RestrictedPorter County's code is explicit: no structure can be built, altered, or placed within the building department's jurisdiction without a permit issued by the building commissioner. Permit fees are set separately under the county's fee chapter, and towns inside the county run their own building departments. source
Septic & composting toilets
RestrictedAny off-sewer dwelling in unincorporated Porter County needs a septic permit from the county health department before a system is installed, and as of a 2025 ordinance, anyone doing OSS work must also be registered with that health department. Composting toilets aren't addressed separately in what I found, so whether one alone satisfies the septic requirement isn't confirmed, best to ask the Health Department directly. source
Greywater reuse
Unclear - verifyI didn't find any Porter County ordinance or state page that specifically addresses reusing or diverting greywater. Absent a specific rule, it likely falls under the general sewage disposal requirements, meaning it may need to run through a septic-compliant system, but that's not confirmed, so ask the county Health Department's Environmental Division.
Rainwater harvesting
Unclear - verifyNo county rule restricting or requiring a permit for simple rainwater collection turned up in my research, so it's presumed allowed. If you plan to plumb harvested rainwater into a house, that part would fall under the Indiana Residential/Plumbing Code as enforced by the county Building Department, worth a call to confirm. source
Private wells & water rights
Generally allowedPorter County's Health Department Environmental Division issues well permits, and wells must sit at least 50 feet from septic tanks, laterals, and sewer lines. A site plan showing the house, well, and septic or sewer line is required for new construction, and a soil test from a certified soil scientist is part of the process. source
Living disconnected from utilities
Unclear - verifyI found no Porter County ordinance requiring hookup to public electric, water, or sewer service, so going off-grid on utilities itself doesn't appear separately banned. That said, you're still on the hook for the county's septic and building permit rules, so off-grid doesn't mean unregulated, it just shifts which permits you need.
Sun30-year normals
- Peak-sun hours, annual average
- 4.5 hrs/day
- Worst month (sizes an off-grid array)
- 2.6 hrs/day
- Yearly output per 1 kW of panels
- 1,306 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 38 in/yr
- Heating degree days
- 6,320 (cold)
- Frost-free season
- Apr 25 to Oct 19
How far help isstraight-line
- Hospital
Northwest Health - Valparaiso - 2.2 mi
- Fire station
Boone Grove Fire Station #2 - 7.4 mi
- Hardware store
Menards - 0.7 mi
- Grocery
Walmart Supercenter - 0.2 mi
From OpenStreetMap. Road miles will be longer, often much longer in hill country.
Plan this spot
These open with this location's real numbers already filled in (ZIP 46383).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
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Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.