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Minimum lot sizes for each residential district in the St. John zoning code. Lake County.
4 residential districts recorded · 3 source documents. Largest, median, and smallest use the standard residential ladder only.
Every residential district in the code, largest minimum to smallest. Values assume municipal sewer unless a note says otherwise.
| District | Min lot (sq ft) | SFD by right | Basis | Source | Notes |
|---|---|---|---|---|---|
| ER estate | 13,500 | Yes | stated | St. John UDO Art. 24-24 Residential Districts (adopted; replaced legacy R-1/R-2/R-3 2026-07-23) | Estate Residential; SF-detached interior 13,500 / corner 15,000; min living 1,700 |
| RNC special | 11,200 | Yes | stated | St. John UDO Art. 24-24 Residential Districts (adopted; replaced legacy R-1/R-2/R-3 2026-07-23) | Residential Neighborhood Conservation (established neighborhoods); SF-detached interior 11,200 / corner 14,000 |
| SR | 10,000 | Yes | stated | St. John UDO Art. 24-24 Residential Districts (adopted; replaced legacy R-1/R-2/R-3 2026-07-23) | Suburban Residential; SF-detached interior 10,000 / corner 12,500; two-family attached 10,000; LARGEST STANDARD |
| GR | 8,000 | Yes | stated | St. John UDO Art. 24-24 Residential Districts (adopted; replaced legacy R-1/R-2/R-3 2026-07-23) | General Residential; SMALLEST SF-detached by right (interior 8,000 / corner 9,500); two-unit attached 6,000; townhouse 2,500 (attached, not counted as SF-detached floor); Cottage Court permitted |
Districts tagged estate, rural, special, or open land sit outside the standard residential ladder. They are listed here for completeness but excluded from the largest, median, and smallest figures.
Off-street parking the code requires for a single-family home.
| Detail | Residential on-site 1.5/du (new UDO; down from old 2) |
|---|---|
| Source | §24-47 |
Whether an accessory dwelling unit (a second, smaller home on the same lot) is allowed.
| Maximum size | Not specified |
|---|---|
| Owner must live on site | n/a |
| Extra parking required | n/a |
| Detail | Interior/attached ADU by right; detached ADU by special exception on SF-detached lots; must connect to town sewer/water (new UDO, Cottage Court district) |
| Source | §24-42 |