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Minimum lot sizes for each residential district in the Franklin zoning code. Johnson County.
7 residential districts recorded · 1 source document. 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 |
|---|---|---|---|---|---|
| RR rural | 87,120 | Yes | stated | Franklin Zoning Ordinance, 3.5 | 2 acres (1 acre w/ utilities) |
| RS-1 | 15,000 | Yes | stated | Franklin Zoning Ordinance, 3.7 | |
| RS-2 | 10,000 | Yes | stated | Franklin Zoning Ordinance, 3.8 | |
| RS-3 | 7,200 | Yes | stated | Franklin Zoning Ordinance, 3.9 | |
| RTN | 5,000 | Yes | stated | Franklin Zoning Ordinance, 3.10 | Traditional Neighborhood; SMALLEST SF by right |
| RT-1 | 9,000 | Yes | stated | Franklin Zoning Ordinance, 3.11 | |
| RT-2 | 7,200 | Yes | stated | Franklin Zoning Ordinance, 3.12 |
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 | RR/RSN/RS/RT 2/du; RTN contextual (avg of nearby RTN lots) |
|---|---|
| Source | parking table |
Whether an accessory dwelling unit (a second, smaller home on the same lot) is allowed.
| Maximum size | 1,000 sq ft |
|---|---|
| Owner must live on site | n/a |
| Extra parking required | n/a |
| Detail | Attached or in an accessory building |
| Source | accessory-use standards |