Allen County, IN Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- R1 front yard
- 25 feet (or platted line)
- R1 rear yard
- 25 feet (50 ft arterial)
- Side yard (public sewer)
- 5 feet
- Side yard (septic)
- 15 feet
- Accessory structure
- 3 feet from side/rear line
Summary
In Allen County's R1 Single Family district, a home must sit at least 25 feet from the front lot line and 25 feet from the rear. Interior side yards are 5 feet (public sewer) or 15 feet (private septic); accessory structures 3 feet.
Front yard: Platted lot 25' (or platted building line setback, whichever is greater)... Side yard Interior lot: Public sewer 5'; Private sewage disposal 15'... Rear yard Primary building 25' (50' if adjacent to an arterial or collector street).
Full Breakdown
The Allen County Zoning Ordinance sets minimum yard setbacks by district. In the R1 Single Family Residential district on a platted lot, the front yard is 25 feet (or the platted building line, whichever is greater). Interior side yards are 5 feet with public sewer or 15 feet with private sewage disposal. The primary building rear yard is 25 feet (50 feet if adjacent to an arterial or collector street). Detached accessory structures may be 3 feet from a side or rear lot line if behind the primary building, and swimming pools 6 feet. Corner-lot street side yards follow the front-yard rule. Setbacks vary by district (A1, A2, A3, R1-R4, etc.); confirm your parcel's zoning with DPS.
Violations & Fines
Building within a required yard is a zoning violation; DPS may deny the permit, require a variance, or order correction.
Frequently Asked Questions
How far from my property line must my house sit?
What setback does a shed need?
Sources & Official References
Other rules in Allen County
Compare Allen County to another location·View the Indiana building setbacks & zoning overview
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