On this page 6
§ 02
When a permit is required
Permit triggers and exempt work for Oswego
New construction, additions, remodels, decks, fences, patios, pools, sheds, roofs, siding, windows, HVAC, and water heaters.
Painting, wallpapering, tiling, carpeting
Cabinet or countertop installation (no plumbing/electric move)
Retaining walls under 4 feet (no surcharge)
Window awnings supported by an exterior wall
- Exempt Painting, wallpapering, tiling, carpeting
- Exempt Cabinet or countertop installation (no plumbing/electric move)
- Exempt Retaining walls under 4 feet (no surcharge)
- Exempt Window awnings supported by an exterior wall
Required documents
- Plat of Survey
- Construction drawings (PDF)
- Contractor information
- Building code
- 2021 IBC, 2021 IRC, 2020 NEC, 2024 Illinois Energy Conservation Code
- Permit validity
- Work must commence within 6 months.
- Owner-builder
- Permitted for residential work; must follow all codes.
- Contractor requirements
- No registration fee required as of 2024; must provide state licenses for specialty trades.
§ 03
Application process
Typical processing: OTC: Same day (Wednesdays); Standard: 10-15 business days.
- 01 Submit application and supporting documents to bzinfo@oswegoil.org.
- 02 For Over-The-Counter (OTC) permits (fences, roofs, siding, water heaters), use expedited Wednesday processing.
- 03 Plan review for larger projects involves building, zoning, and engineering reviews.
- 04 Approval notification sent via email.
- 05 Pay fees and receive permit.
Typical processing time: OTC: Same day (Wednesdays); Standard: 10-15 business days.
§ 04
Fee schedule
Effective Current
Fee type
Amount
01
Minimum permit fee
$46.00
02
Plan check fee
15% of building permit fee (Minimum $50)
03
Permit fee formula
New construction ($0.60/sq ft); Alterations ($0.92 per $100 estimated cost)
04
Trade permit fee
Included in overall application
05
Reinspection fee
$45 per additional inspection
06
Penalty (no permit)
Double fee for work without permit
Impact fees for new single-family homes approx $11,650 (effective 2025).
Fees change periodically. Confirm at the official fee schedule ↗ (effective Current) before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- 630-554-2310 (phone)
- Scheduling deadline
- 24 hours in advance
- Inspection hours
- Monday - Friday, 8:00 AM - 4:00 PM
Typical sequence: Typical sequence: Pre-pour, Roughs, Insulation, Final.
§ 06
Frequently asked
Common questions about Oswego permits
01 Do I need a building permit in Oswego, IL? ▸
New construction, additions, remodels, decks, fences, patios, pools, sheds, roofs, siding, windows, HVAC, and water heaters.
02 How much does a building permit cost in Oswego, IL? ▸
Building permit fees in Oswego, IL are set by the local building department and vary by project type and valuation. The minimum permit fee is $46.00. Fees are calculated as: New construction ($0.60/sq ft); Alterations ($0.92 per $100 estimated cost). Plan check fee: 15% of building permit fee (Minimum $50).
03 How do I apply for a building permit in Oswego, IL? ▸
To apply for a building permit in Oswego, IL, follow these steps: 1. Submit application and supporting documents to bzinfo@oswegoil.org. 2. For Over-The-Counter (OTC) permits (fences, roofs, siding, water heaters), use expedited Wednesday processing. 3. Plan review for larger projects involves building, zoning, and engineering reviews. 4. Approval notification sent via email. 5. Pay fees and receive permit.
04 How long does it take to get a building permit in Oswego, IL? ▸
Building permit processing times in Oswego, IL typically run OTC: Same day (Wednesdays); Standard: 10-15 business days.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Oswego, IL? ▸
Not all construction work requires a permit in Oswego, IL. The following work is generally exempt: Painting, wallpapering, tiling, carpeting; Cabinet or countertop installation (no plumbing/electric move); Retaining walls under 4 feet (no surcharge); Window awnings supported by an exterior wall. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Oswego, IL? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Oswego, IL via: 630-554-2310. 24 hours in advance.
last verified April 2026
source Village of Oswego Building and Permits Department ↗
entry id permits/illinois/kendall/oswego
Educational reference. Permit rules and fees change — confirm current requirements directly with Village of Oswego Building and Permits Department before applying. Jaspector is not legal advice.