Shelby County, Illinois
Big Spring Township is a township in Shelby County, Illinois. Septic permits inside Big Spring Township come from Shelby County (Shelby County Public Health Department · 217-774-2355). 8 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Shelby County page.
Big Spring Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
New structures and alterations on land inside Big Spring township's unincorporated area; the county zoning office (not the township) issues the permit under the county ordinance
“no structure of any kind shall be placed, erected, altered, changed, or located on any land within the jurisdiction of shelby county, illinois, including any unincorporated villages, without an improvement location permit (building permit).”
Non-farm residential dwellings in the agricultural district, in unincorporated Big Spring township (district: Agricultural)
minimum lot size, non-farm residential dwelling in agricultural district: >= 1 acre (non-farm residential dwellings in an agricultural district)
“the minimum lot size for non-farm residential dwellings in an agricultural district is one (1) acre.”
Structures in the agricultural district along public rights-of-way in unincorporated Big Spring township (district: Agricultural)
front setback, abutting major street: 40 feet (structures in agricultural district along public rights-of-way) · front setback, collector street: 30 feet (structures in agricultural district along public rights-of-way)
“building setbacks shaii be maintained for all structures along the public rights-of-way as follows: abutting: major street ……….40 feet collector street……30 feet local street………..25 feet”
Mobile and manufactured homes in agricultural districts in the county's jurisdictional area, which includes unincorporated Big Spring township
“mobile homes – homes of these types, as defined in §1, shall be permitted in agricultural districts subject to the use requirements hereinafter designated in paragraph b5.”
Sewer (septic) approval for a new home in unincorporated Big Spring township, which applies inside Big Spring township when the county permit process requires it
“once you’ve obtained a sewer permit from the shelby county health department (if applicable), you should apply for a building permit.”
Sewer permit for new construction in unincorporated Big Spring township, issued by the Shelby County health department
“once you’ve obtained a sewer permit from the shelby county health department (if applicable), you should apply for a building permit.”
County zoning permit fees for construction in unincorporated Big Spring township
new residence permit fee: 175 USD · residential addition permit fee: 125 USD · accessory building permit fee: 125 USD · new commercial building permit fee: 500 USD · commercial accessory building permit fee: 250 USD · commercial addition permit fee: 250 USD
“shelby county requires a minimal fee to offset the cost of the zoning office. new residence: $175 residential addition: $125 accessory building: $125 new commercial building: $500 commercial accessory building: $250 commercial addition: $250”
County building permit process for construction in unincorporated Big Spring township
typical permit issuance time: 15 business days (typically)
“typically, a permit is issued within 15 business days. you have 1 year to begin construction before the permit expires.”
We looked and could not find an official answer yet. Silence is not permission; ask Big Spring Township or Shelby County directly.
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 Big Spring Township publishes no rule on the point, not that none exists. Shelby County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Big Spring Township means bringing your own water and power. The kit we’d start with:
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