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§ 02
When a permit is required
Permit triggers and exempt work for Monticello
New construction; building additions; decks, porches, patios; fencing; in-ground pools; detached structures (garages, sheds); signs; ground-mounted solar installations.
Interior renovations and remodeling (unless structural or involving change of occupancy for commercial)
Roof repairs or replacement (non-structural)
Window and door replacements (in-kind, no structural change)
HVAC system service (maintenance, not installation of new systems)
Driveways (permit not required, but inspection of approach between property line and street edge required before placement)
Rooftop-mounted solar panels
- Exempt Interior renovations and remodeling (unless structural or involving change of occupancy for commercial)
- Exempt Roof repairs or replacement (non-structural)
- Exempt Window and door replacements (in-kind, no structural change)
- Exempt HVAC system service (maintenance, not installation of new systems)
- Exempt Driveways (permit not required, but inspection of approach between property line and street edge required before placement)
- Exempt Rooftop-mounted solar panels
Required documents
- Completed building permit application form
- Two copies of site plan drawn to scale
- Construction plans drawn to scale
- Engineered drawings for commercial projects and changes of occupancy
- Building code
- Per Illinois PA 103-0510 (effective January 1, 2025), minimum standards are IBC 2021, IRC 2021, IEBC 2021, NEC 2023, Illinois Energy Conservation Code, Illinois Accessibility Code, and Illinois Plumbing Code. Monticello historically adopted 2003 IBC, IRC, 2005 NEC, 2004 Illinois Plumbing Code. Confirm current locally-adopted edition with the Building Inspector.
- Permit validity
- New residential construction: 1 year from issuance. Commercial new construction: 2 years from issuance. All other permits: 6 months from issuance. Extensions up to 90 days may be granted in writing by the Building Inspector.
- Contractor requirements
- No Illinois state general contractor license. Electricians must hold an IDFPR license. Plumbers must hold an IDFPR license.
§ 03
Application process
Typical processing: Same day to next working day for simple permits; up to two weeks for complex projects.
- 01 Discuss the project with the City Building Inspector to confirm zoning compliance.
- 02 Prepare two copies of a site plan and construction plans drawn to scale, including lot dimensions, location and size of all existing and proposed buildings, driveway locations, off-street parking, intended use descriptions, and number of dwelling units if applicable.
- 03 For commercial new construction and remodels, provide engineered drawings. Change-of-occupancy projects also require engineered drawings.
- 04 Properties in the Historic District require approval from the Historic Design Review Board before a building permit is issued.
- 05 Submit application and plans in person to City Hall (210 N. Hamilton) or electronically to taj@cityofmonticello.net.
- 06 For simple permits (fences, decks, sheds), permit is typically issued same day or next working day.
- 07 Complex projects may take up to two weeks for review.
- 08 Permit is issued; post on job site and schedule required inspections.
Typical processing time: Same day to next working day for simple permits; up to two weeks for complex projects.
§ 04
Fee schedule
Monticello building permit fees
Fee type
Amount
01
Minimum permit fee
$50 (for garages, decks, sheds, additions)
02
Permit fee formula
Not publicly documented in full. Based on city budget references: approximately $1,800 for new single-family home construction; $50 for garages, decks, patios, and additions.
03
Penalty (no permit)
Failure to obtain permit before starting work is a code violation; Building Inspector has authority to require work stoppage.
Payment made to City of Monticello. Checks and cash accepted; confirm whether credit cards are accepted.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- (217) 762-2583 (phone)
- Inspection hours
- Monday through Friday during City Hall business hours
Typical sequence: For new construction, inspections required at key phases (footing/foundation, framing, rough MEP, insulation, final). For smaller projects, typically final inspection only.
§ 06
Frequently asked
Common questions about Monticello permits
01 Do I need a building permit in Monticello, IL? ▸
New construction; building additions; decks, porches, patios; fencing; in-ground pools; detached structures (garages, sheds); signs; ground-mounted solar installations.
02 How much does a building permit cost in Monticello, IL? ▸
Building permit fees in Monticello, IL are set by the local building department and vary by project type and valuation. The minimum permit fee is $50 (for garages, decks, sheds, additions). Fees are calculated as: Not publicly documented in full. Based on city budget references: approximately $1,800 for new single-family home construction; $50 for garages, decks, patios, and additions..
03 How do I apply for a building permit in Monticello, IL? ▸
To apply for a building permit in Monticello, IL, follow these steps: 1. Discuss the project with the City Building Inspector to confirm zoning compliance. 2. Prepare two copies of a site plan and construction plans drawn to scale, including lot dimensions, location and size of all existing and proposed buildings, driveway locations, off-street parking, intended use descriptions, and number of dwelling units if applicable. 3. For commercial new construction and remodels, provide engineered drawings. Change-of-occupancy projects also require engineered drawings. 4. Properties in the Historic District require approval from the Historic Design Review Board before a building permit is issued. 5. Submit application and plans in person to City Hall (210 N. Hamilton) or electronically to taj@cityofmonticello.net. 6. For simple permits (fences, decks, sheds), permit is typically issued same day or next working day. 7. Complex projects may take up to two weeks for review. 8. Permit is issued; post on job site and schedule required inspections.
04 How long does it take to get a building permit in Monticello, IL? ▸
Building permit processing times in Monticello, IL typically run Same day to next working day for simple permits; up to two weeks for complex projects.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Monticello, IL? ▸
Not all construction work requires a permit in Monticello, IL. The following work is generally exempt: Interior renovations and remodeling (unless structural or involving change of occupancy for commercial); Roof repairs or replacement (non-structural); Window and door replacements (in-kind, no structural change); HVAC system service (maintenance, not installation of new systems); Driveways (permit not required, but inspection of approach between property line and street edge required before placement); Rooftop-mounted solar panels. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Monticello, IL? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Monticello, IL via: (217) 762-2583.
last verified April 2026
source Building Inspection and Zoning Division ↗
entry id permits/illinois/piatt/monticello
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Inspection and Zoning Division before applying. Jaspector is not legal advice.