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When a permit is required
Permit triggers and exempt work for Mason County
county ordinance says a building permit is required prior to commencement of construction on any parcel in Mason County except as otherwise set forth.
- Exempt Routine maintenance or repair of buildings, structures, or equipment such as repairing or re-roofing a building
- Exempt Alterations to existing buildings at a cost of less than $1,000
- Exempt Construction of a service connection to a municipally owned and operated utility
- application form, owner/applicant/contractor details, site description, plat of survey or suitable drawing, and utility / septic / well information when relevant.
- Permit validity
- if work is not substantially started within 180 days, a new permit is required; work authorized by permit must be completed within 24 months, with one possible 12-month extension.
- Owner-builder
- not expressly published in the county material reviewed.
- Contractor requirements
- not expressly published in the county material reviewed; Illinois statewide trade licensing still applies for plumbing and electrical.
Application process
Application → plan check → issuance → inspection → final
- 01 Confirm whether the work is exempt under county ordinance.
- 02 Complete the zoning permit application on forms furnished by the Zoning Enforcement Officer.
- 03 Include required materials where applicable: applicant/owner/architect/engineer/contractor info, site description, plat of survey or suitable drawing, sewage plan if no municipal sewer, water supply plan if no municipal water.
- 04 File with the County Zoning Enforcement Officer.
- 05 County reviews and issues, or denies/requires revision.
- 06 For special uses, the application is referred to the Zoning Board.
Required inspections
Scheduling and sequence
- not publicly detailed beyond office filing and direct contact with zoning office (contact)
- Inspection hours
- county courthouse hours are Monday-Friday 8:00 am to 4:00 pm except holidays
Typical sequence: not publicly detailed
not publicly detailed
Frequently asked
Common questions about unincorporated Mason County permits
01 Do I need a building permit in unincorporated Mason County, IL? ▸
02 How do I apply for a building permit in unincorporated Mason County, IL? ▸
03 What work is exempt from building permits in unincorporated Mason County, IL? ▸
04 How do I schedule a building inspection in unincorporated Mason County, IL? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Mason County Zoning / Code Enforcement before applying. Jaspector is not legal advice.