Zoning, building permits and septic rules in Village of Long Grove, Illinois

Village of Long Grove’s own rules

• Local zoningPresent

  Land inside Long Grove village limits; the village adopts its own Title 5 Zoning Regulations with R1, R2, R3 residential districts

  “three zoning districts are provided for residential development. the residential districts (r1, r2, and r3 districts)”

• Zoning districtsPartial

  Long Grove village residential districts R1, R2, R3 (other districts such as B1, B2 and Conservancy are referenced but were not opened)

  • Only residential districts were reviewed

  “three zoning districts are provided for residential development. the residential districts (r1, r2, and r3 districts)”

• Minimum lot sizeDistrict specific (with conditions)

  Residential districts inside Long Grove village: R1 3 acres, R2 2 acres, R3 1 acre

  • Legal nonconforming lots governed by 5-10-5

  R1 minimum lot area: >= 3 acres · R2 minimum lot area: >= 2 acres · R3 minimum lot area: >= 1 acres

  “minimum lot area 2 3 acres 2 acres 1 acre”

• Lot coverageDistrict specific (with conditions)

  Residential districts R1, R2, R3 inside Long Grove village: maximum impervious surface coverage 40%

  • Lots under 0.5 acre: first 400 sq ft of deck/patio excluded, total may not exceed 45% without variation
  • Maximum gross floor area also limited by lot-area formula (note 6), principal building capped at 13,000 sq ft

  maximum impervious surface coverage: <= 40 percent (45% for lots under 0.5 acre counting excluded decks/patios)

  “maximum impervious surface coverage 7 40% 40% 40%”

• Building heightSpecified

  Residential districts R1, R2, R3 inside Long Grove village: 35 feet maximum

  • Accessory structures maximum 15 feet unless permitted under 5-9-1

  maximum building height: <= 35 feet (accessory structures 15 feet)

  “maximum building height (feet) 1 35 35 35”

• Accessory dwellingsLimited

  Guesthouses as accessory use to a principal dwelling inside Long Grove village

  • One guesthouse per principal dwelling unit
  • Lot must be three acres or larger
  • Must meet principal building setbacks
  • May not be owned by anyone other than owner of principal dwelling

  maximum guesthouse livable area: <= 850 square feet

  “a guesthouse shall be a permitted accessory use, provided that it contains no more than 850 square feet of livable area and complies with all the setback requirements of a principal building as set forth in the applicable zoning classification.”

• Agricultural exemptionConditional

  Agriculture in residential districts inside Long Grove village

  • Other agricultural uses require a special use permit
  • Commercial agriculture requires minimum ten contiguous acres
  • Buildings must respect district setbacks

  “the growing of crops shall be permitted as of right in the residential districts. any other agricultural use shall require a special use permit pursuant to section 5-3-6 of this chapter.”

Still unanswered

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

• Building permit — Building permits inside Long Grove village
• Owner-builder exemption — Owner-builder exemption inside Long Grove village
• Building code adopted — Building code inside Long Grove village
• Inspections — Building inspections inside Long Grove village
• Certificate of occupancy — Certificates of occupancy inside Long Grove village

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 Long Grove 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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