Zoning & Planning Department

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About the Zoning & Planning Department

The Zoning & Planning Department for Johnson County is the local government office responsible for the regulatory review and permitting work described on this page. The zoning department administers the local zoning ordinance, reviews land use applications, processes variance and special exception requests, and maintains the official zoning map. If your project is located inside an incorporated city, town, or village within Johnson County, the city's own building department may have jurisdiction instead of the county; when in doubt, call the county office first and ask which jurisdiction reviews your address. Why this office matters for your project in Johnson County. Construction work performed without a required permit is one of the most common causes of failed real estate transactions, denied insurance claims, and expensive retroactive corrections. Lenders, insurers, and future buyers routinely request permit history, and unpermitted work that comes to light during a sale can stall or kill a closing. Working with the Zoning & Planning Department up front protects the value of your investment and keeps your contractor accountable to the same code that protects your family. Services this office provides. The Zoning & Planning Department in Illinois's Johnson County typically handles the following kinds of requests: • Zoning verification letters • Variance applications • Special use permits • Subdivision review • Site plan approval • Conditional use permits • Zoning map amendments • Pre-application meetings What to bring to your visit. To keep your application moving, plan to bring or upload the following materials. Missing documents are the most common reason for review delays. • Completed application form • Survey or site plan • Property deed and tax map ID • Adjacent owner notification list • Application fee • Photographs of existing conditions What the review process looks like. After you submit a complete application, the Zoning & Planning Department logs your project, assigns a reviewer, and begins a plan check that typically takes between five and twenty business days for residential work and longer for commercial projects. Reviewers may issue comments asking for clarifications, revised drawings, or additional energy code calculations. Once your plans are approved, you pay the permit fee, receive your permit card, and post it at the job site. Inspections are scheduled at defined milestones, and a certificate of occupancy is issued once the final inspection passes. Local tips for Johnson County. Counter wait times are usually shortest mid-week and mid-morning. Many counties accept email submittals for small residential projects, but stamped commercial drawings still need to be filed in person or through an online portal. If your project sits near a property line, in a flood zone, on a steep slope, or near a wetland, expect additional review time and a possible site visit. Septic and well projects are usually coordinated with the local health department and may require their sign-off before the building permit will be released. Frequently asked questions about working with the Zoning & Planning Department in Johnson County. Do I need a permit to replace a water heater like-for-like? In most jurisdictions yes — call to confirm. Can I pull my own permit as the homeowner? Many counties allow owner-builder permits for an owner-occupied single-family home; a signed affidavit is usually required. How long is a permit valid? Permits are typically valid for six months from issuance and expire if no inspection is requested in any 180-day period. Can I appeal a denied application? Yes — denials may be appealed to the county board of appeals or zoning board of adjustment, depending on the issue.

Services this office handles

• Zoning verification letters
• Variance applications
• Special use permits
• Subdivision review
• Site plan approval
• Conditional use permits
• Zoning map amendments
• Pre-application meetings

What to bring

• Completed application form
• Survey or site plan
• Property deed and tax map ID
• Adjacent owner notification list
• Application fee
• Photographs of existing conditions

Other offices in Johnson County

Nearby county offices