Will County, IL Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Governing section
- Will County Code § 155-3.30
- E-1 rear setback
- 80 feet
- R-6 rear setback
- 25 feet
- Accessory rear setback
- 5 feet, all districts
- Applies to
- Unincorporated county land only
Summary
Unincorporated Will County sets minimum yard setbacks by zoning district under the county zoning ordinance's lot and building standards table, ranging from the rural E-1 district's 80-foot rear yard down to R-6's 25-foot rear yard requirement.
Minimum Setbacks (feet) S1a Street (from CL of non-dedicated road) 100 100 90 80 80 80 80 80 80 S1b Street (from ROW of dedicated road) 67 67 57 47 47 30 30 30 30 S2 Side 20 20 15 10 10 10 10 5 5/10 S3 Rear 80 80 70 40 40 40 30 25 25 S4 Rear (Accessory Structures) 5 5 5 5 5 5 5 5 5
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2025 S-25: Supplement contains: Local legislation current through Ordinance No. 24-100, passed 4-18-2024 and Res. 23-387, passed 11-16-2023; and State legislation approved through 2024 Pamphlet #2).
Full Breakdown
Will County Code Section 155-3.30 sets minimum yard setbacks for the county's nine residential zoning districts, E-1, E-2, R-1, R-2, R-2A, R-3, R-4, R-5 and R-6, covering unincorporated land only; Joliet, Bolingbrook, Romeoville, Plainfield and Lockport enforce their own municipal zoning instead. Street setbacks run from 100 feet off a non-dedicated road centerline in E-1 down to 30 feet from a dedicated right-of-way in R-4 through R-6. Side yards range from 20 feet in E-1 and E-2 to 5 feet in R-5, and rear yards range from 80 feet in E-1 and E-2 down to 25 feet in R-5 and R-6, with a separate 5-foot rear setback for accessory structures countywide.
Violations & Fines
Building without meeting the Section 155-3.30 setback triggers a zoning violation; the Land Use Department can require relocation or removal and pursue enforcement in circuit court.
Frequently Asked Questions
Do these setbacks apply inside Joliet or Bolingbrook?
What is the minimum side setback in an R-1 district?
Sources & Official References
Other rules in Will County
Compare Will County to another location·View the Illinois building setbacks & zoning overview
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