City Building Permits

Alton, IL - 2026 Building Permit Guide

How to apply for a building permit in Alton, Illinois. Permit authority, application steps, fees, and inspection requirements.

Illinois Madison County Updated March 2026

Permit Authority

City of Alton limits only. Properties in unincorporated Alton fall under Madison County jurisdiction.

Department
Building & Zoning Department
Address
101 E. Third Street, Alton, IL 62002
Phone
(618) 463-3533
Website
https://www.cityofaltonil.gov/building-and-zoning-department/

Online Permit Portal

Open BS&A Online

Platform: BS&A Online • Account required: Yes • Submission: In-person only

Application Process

  1. Create an account on BS&A Online or visit City Hall Room 204.
  2. Submit application with project valuation, site plan, and detailed drawings.
  3. Department reviews for zoning compliance and building code adherence.
  4. Once approved, pay permit fees and receive the permit.

Typical processing time: Typically 5-10 business days for standard residential.

Source: Building & Zoning Department

General Requirements

New construction, additions, structural alterations, roofing, siding, fences, decks, swimming pools, solar panels, and any project valued over $750.

Required Documents

  • Site plan
  • Construction drawings
  • Recorded deed (if requested)
  • Energy code compliance (REScheck/COMcheck)
Permit validity
Typically 6-12 months.
Building code
2021 IBC, 2021 IRC, 2020 NEC (as of Jan 1, 2025)
Owner-builder
Homeowners may perform work on their primary residence.
Contractor requirements
Contractors must be registered and bonded with the city.

Fees

Minimum permit fee
$30.00
Permit fee formula
Valuation-based ($30 for first $1,000; rates increase with value)
Reinspection fee
$35.00 for missed appointments or re-inspections
Payment note
Online payments accepted via BS&A portal

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

  • Painting, wallpapering, tiling, carpeting
  • Cabinets, countertops, and similar finish work
  • Minor repairs/alterations valued at $750.00 or less (not involving structural changes)
  • Window replacement where opening size is unchanged

Inspections

How to Schedule

  • (618) 463-3533 (phone)
Inspection hours
Monday - Friday, 8:00 AM - 5:00 PM

Typical inspection sequence: Footing, Foundation, Rough-in (Electric/Plumbing/Mechanical), Framing, Final

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Building & Zoning Department before applying.

Frequently Asked Questions

Alton Building Permit FAQ

Do I need a building permit in Alton, IL?
New construction, additions, structural alterations, roofing, siding, fences, decks, swimming pools, solar panels, and any project valued over $750.
How much does a building permit cost in Alton, IL?
The minimum permit fee is $30.00. Fees are calculated as: Valuation-based ($30 for first $1,000; rates increase with value).
How do I apply for a building permit in Alton, IL?
1. Create an account on BS&A Online or visit City Hall Room 204. 2. Submit application with project valuation, site plan, and detailed drawings. 3. Department reviews for zoning compliance and building code adherence. 4. Once approved, pay permit fees and receive the permit.
How long does it take to get a building permit in Alton, IL?
Typical processing time is Typically 5-10 business days for standard residential..
What work is exempt from building permits in Alton, IL?
The following work is generally exempt: Painting, wallpapering, tiling, carpeting; Cabinets, countertops, and similar finish work; Minor repairs/alterations valued at $750.00 or less (not involving structural changes); Window replacement where opening size is unchanged.
How do I schedule a building inspection in Alton, IL?
Inspections can be scheduled via: (618) 463-3533.

Need help with your project?

Navigating permits in Alton can be complicated.

Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.

Learn how Jaspector works
Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

Other cities in Madison County

Edwardsville Granite Collinsville Maryville
View all Madison County jurisdictions →