Building Setbacks & Zoning in Will County, IL (2026)

3 rules for unincorporated Will County, Illinois.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Will County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Setback Rules

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.

Will County yard setbacks by zoning district

Some Restrictions

Will County Code § 155-3.30

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

Full ordinance details →Official source ↗

Structure Height Limits

Will County's zoning code sets no fixed height cap for houses in the E-1 through R-4 residential districts, height follows the county Building Ordinance instead, while R-5 tops out at 35 feet and R-6 at 40 feet; accessory buildings are capped at 25 feet everywhere.

Residential Structure Height Limits in Will County

Some Restrictions

Will County Code § 155-3.30

Legend Lot and Building Standards E-1 E-2 R-1 R-2 R-2A R-3 R-4 R-5 R-6 ... Maximum Building Height (feet) Accessory Buildings [6] 25 25 25 25 25 25 25 25 25 ... All Other As regulated by Will County Building Ordinance [E-1–R-4] 35 [R-5] 40 [R-6]

Full ordinance details →Official source ↗

Lot Coverage Limits

Will County caps building coverage, the roofed footprint of a house and its accessory buildings, at 20% of lot area in the E-1, E-2, R-1 and R-2 zoning districts, rising to 25% in R-2A, 30% in R-3, 40% in R-4 and 45% in R-5 and R-6 under Code § 155-3.30(B). Coverage is measured along the building line, and only space beneath a roof counts.

Will County Maximum Building Coverage Limits

Some Restrictions

Will County Code §§ 155-3.30(B), 155-18.10(D)

Legend Lot and Building Standards E-1 E-2 R-1 R-2 R-2A R-3 R-4 R-5 R-6 B1 Maximum Building Coverage (%)[5] 20 20 20 20 25 30 40 45 45 [5] Area of accessory, ground-mounted solar energy systems for personal household use and beehives are not included in building coverage limits. (D) Building coverage. Building coverag...

Full ordinance details →Official source ↗

All Will County ordinances

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