Zoning, building permits and septic rules in Petersburg, Illinois

Petersburg’s own rules

• Building permitLimited

  Construction, alteration, removal or demolition of buildings within the areas described in Petersburg city code § 6-41 (Article IV, construction, removal, demolition of buildings within certain area)

  • Permit requirement applies only inside the area described in § 6-41(a) and (b) (including the area west of the Illinois & Midland railroad and north of Antle Street); the exceptions listed in § 6-41 were not fully read.
  • Permit is issued by the zoning administrator on a written application.
  • Outside the § 6-41 area, a general city building permit requirement was not located in the sections read.

  “it shall be unlawful to construct, alter, remove or demolish, or to commence the construction, alteration, removal or demolition of a building, mobile home or structure or install equipment for the operation of a building or structure within the following described area”

• Local zoningPresent (with conditions)

  Land inside the corporate limits of Petersburg city, Illinois (city hall 122 S 6th St, Petersburg IL 62675)

  • The city's own zoning appendix (Appendix A, Zoning) is in the 2017 ordinance book; the city says numerous amendments have been passed since the 2017 printing and that citizens must check for amended codes.
  • Zoning is administered by the city zoning administrator; the planning page lists a zoning ordinance PDF (3,584 kb) that was not opened.

  “§ a-30 permitted principal uses. the following are permitted principal uses: (a) single-family detached dwellings, excluding mobile homes; and (b) single-family detached modular homes.”

• Zoning districtsPartial

  Zoning districts of Petersburg city (R-1 low-density residential and R-2 medium-density residential articles confirmed)

  • A business (B-1) district is listed in the code index but its use and dimensional sections were not read.
  • The city zoning map PDF was not opened, so the full district list is not confirmed.

  “article iv. provisions governing the low-density residential (r1) district a-30 permitted principal uses”

• Minimum lot sizeDistrict specific (with conditions)

  Single-family lots in the low-density residential (R-1) district inside Petersburg city limits

  • Figures are the R-1 values in § a-33; the medium-density R-2 district lot standards were not read.
  • The table in the code text is jumbled, so the column pairing follows the order of the labels (lot area, lot width, lot frontage).

  minimum lot area: >= 5456 square feet (R-1 district) · minimum lot width: >= 44 feet (R-1 district) · minimum lot frontage: >= 35 feet (R-1 district)

  “§ a-33 lot area, width and frontage; yard requirements. the following are yard requirements for lot area, width and frontage: lot area lot width lot frontage minimum: 5,456 square feet minimum: 44 feet minimum: 35 feet”

• SetbacksDistrict specific (with conditions)

  Principal buildings on lots in the low-density residential (R-1) district inside Petersburg city limits

  • Yard values from § a-33: minimum front 20 feet, rear 20 feet, side 4 + 4 feet, corner 8 feet.
  • The jumbled table text does not show whether the side figure is 4 feet per side; read as stated in the code.
  • R-2 yard requirements were not read.

  minimum front yard: >= 20 feet (R-1) · minimum rear yard: >= 20 feet (R-1) · minimum side yard: >= 4 feet (R-1; stated as '4 + 4 feet') · minimum corner side yard: >= 8 feet (R-1)

  “minimum front 20 feet rear 20 feet side 4 + 4 feet corner 8 feet”

  One more reviewed finding on this topic

  • Specified — Accessory structures in the low-density residential (R-1) district inside Petersburg city limits

    “(a) no accessory structure shall be constructed closer than eight feet to any lot line nor in either side or front yard, except an approved fence not exceeding eight feet in height along a lot line, a driveway not closer than two feet along a lot line, and a private garage that is structurally a part of the principal building.”

• Camping on your landLimited

  Tents and camping inside Petersburg city limits where the zoning code permits camping

  • No tent may be used as living quarters; tents for camping are allowed only where permitted and must be of a temporary nature.
  • The specific districts where camping is permitted were not identified.

  “(c) tents. no tent shall be used, erected or maintained as living quarters. tents used in commercial or industrial zones or tents used for camping purposes wherever permitted shall be of a temporary nature.”

• Manufactured homesLimited

  Single-family dwellings in the low-density residential (R-1) district inside Petersburg city limits; mobile homes are excluded, modular homes are permitted

  • Mobile homes are excluded from the R-1 permitted single-family use; single-family detached modular homes are permitted.
  • Rules for other districts (including any manufactured-home district) were not verified.
  • Code residential definition lists mobile homes, but the use table for other districts was not read.

  “§ a-30 permitted principal uses. the following are permitted principal uses: (a) single-family detached dwellings, excluding mobile homes; and (b) single-family detached modular homes.”

• Mandatory utility hookupSewer (with conditions)

  Buildings with sanitary facilities inside Petersburg city limits where a public sewer is within 200 feet of the property line

  • Owner must install sanitary facilities and connect them to the public sewer within 60 days after official notice, at the owner's expense, only if the public sewer is within 200 feet of the property line.
  • The lead-in clause of § 24-85 was not fully captured (the excerpt begins mid-sentence); the lead-in sets the scope of which buildings are covered.
  • No mandatory city water connection rule was located in the sections read; water connection is not established.

  distance to public sewer: <= 200 feet (measured to property line; connection required only within this distance) · connection deadline after official notice: 60 days

  “a public sewer of the city is hereby required, at his or her expense, to install suitable sanitary facilities therein, and to connect such facilities directly with the proper public sewer in accordance with the provisions of this article, within 60 days after the date of official notice to do so, provided that the public sewer is within 200 feet of the property line.”

• Building in a floodplainRequired

  Development inside the special flood hazard area regulated by city code chapter 9.5 (Floods), including placing manufactured homes and recreational vehicles on site

  • Applies to the activities listed in the chapter 9.5 development section; the lead-in sentence was not fully captured.
  • Recreational vehicles or travel trailers on site more than 180 days per year must meet elevation rules unless listed conditions are met.
  • Structures built within the floodway must meet the chapter's stated conditions (e.g., garages and sheds).

  “(4) installing a manufactured home on a new site or a new manufactured home on an existing site (the building protection requirements do not apply to returning a manufactured home to the same site it lawfully occupied before it was removed to avoid flood damage.); (5) installing a travel trailer or recreational vehicle on a site for more than 180 days per year;”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Petersburg or Menard County directly.

• Owner-builder exemption — Owner-builder exemption from city permit rules inside Petersburg city limits
• Inspections — Building inspections for construction inside Petersburg city limits
• Certificate of occupancy — Certificate of occupancy for new buildings inside Petersburg city limits
• Minimum dwelling size — Minimum floor area for dwellings inside Petersburg city limits
• Lot coverage — Lot coverage limits for buildings inside Petersburg city limits

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.