Zoning, building permits and septic rules in Village of Lombard, Illinois

Village of Lombard’s own rules

• Building permitRequired

  Residential work inside Lombard village; IRC R105.2 exemptions largely deleted

  • Remaining exemptions under R105.2 (those not deleted) still apply
  • Local amendment lists residing, sheds under 80 sq ft and under 8 ft, and patios under 100 sq ft alongside the deleted exemptions

  “Section R105.2 Work exempt from permit; Delete the following exemptions: 1, 2, 3, 4, 5, 7 and 10.”

• Building code adoptedAdopted (with conditions)

  Residential construction inside Lombard village

  • Adopted with local amendments (e.g., deleted permit exemptions, snow load 36, frost depth 42 in, carbon monoxide detector requirements)
  • Plumbing and electric sections of IRC deleted except Chapters 25 and 26

  IRC edition: 2024 · frost depth: 42 inches

  “All provisions as listed in the International Residential Code, 2024 edition, are hereby adopted and incorporated by reference with the following changes:”

• Local zoningPresent

  Land inside Lombard village limits; the village adopts a zoning code (Title XV, Chapter 155 Zoning Code) with named districts

  “The B5A Downtown Perimeter District is intended to be a transition between the downtown and other commercial areas”

• Minimum lot sizeNone

  B5A Downtown Perimeter District only inside Lombard village (not the single-family residential district)

  • Residential district lot size not yet researched

  “no minimum lot area shall be required for uses in the b5a district.”

• SetbacksNone

  Principal buildings in the B5A Downtown Perimeter District only inside Lombard village

  • Unless stipulated by other requirements of Chapter 155
  • Accessory structures follow § 155.210
  • Transitional setback of 20 feet where rear or interior side yard abuts CR or residence district

  transitional setback: 20 feet (only where abutting CR or residence district)

  “no setbacks shall be required for principal buildings in the b5a district unless stipulated by other requirements of this chapter.”

• Building heightSpecified

  Permitted uses in the B5A Downtown Perimeter District only inside Lombard village

  • Conditional uses limited to four stories or 45 feet, whichever is less
  • Residential district height not yet researched

  max height permitted uses: <= 30 feet (or two stories, whichever is less) · max height conditional uses: <= 45 feet (or four stories, whichever is less)

  “no buildings or structures shall exceed two stories or 30 feet in height, whichever is less.”

• Manufactured homesLimited

  Manufactured housing units inside Lombard village

  • Must meet all IRC provisions and all applicable Title XV village ordinances as for single-family detached dwellings
  • Zoning district where permitted not determined

  “Manufactured housing units shall comply with all sections of this code and all other applicable Village Ordinances denoted in Title XV as they apply to the construction for all single family detached dwellings.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of Lombard or DuPage County directly.

• Owner-builder exemption — Owner-builder exemption inside Lombard village
• Inspections — Building inspections inside Lombard village
• Certificate of occupancy — Certificate of occupancy inside Lombard village
• Minimum dwelling size — Minimum dwelling size in Lombard residential districts
• Lot coverage — Lot coverage in Lombard residential districts

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.

Off-grid gear

Going off-grid in Village of Lombard means bringing your own water and power. The kit we’d start with:

• Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
• Power Bluetti Solar generators and home battery backup for living off the grid.
• Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
• Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.

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