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§ 02
When a permit is required
Permit triggers and exempt work for Island Lake
Most construction, additions, basement build-outs, decks, fences, roofs, HVAC.
Cosmetic painting and flooring
Minor non-structural repairs
- Exempt Cosmetic painting and flooring
- Exempt Minor non-structural repairs
Note: Confirm specific exemptions with Building Commissioner.
Required documents
- Application
- Plat of survey/blueprints
- Contractor registration
- HOA approval (if applicable)
- Building code
- 2009 IBC/IRC/IMC/IECC/IPMC, 2020 NEC (Copper/Metal conduit), 2009 IL Plumbing, 2018 IFC.
- Owner-builder
- Notarized Letter of Intent often required.
- Contractor requirements
- All contractors must be registered with the Village.
§ 03
Application process
Application → plan check → issuance → inspection → final
- 01 Submit completed application, plans, and contractor proposal.
- 02 Building Commissioner reviews submittal.
- 03 Pay fees (including $50 non-refundable app fee).
- 04 Permit issued.
§ 04
Fee schedule
Island Lake building permit fees
Fee type
Amount
01
Minimum permit fee
$100 (plus inspection fees)
02
Plan check fee
$50 non-refundable application fee.
03
Permit fee formula
Flat permit fee + set number of inspection fees.
04
Trade permit fee
$100 base
05
Reinspection fee
$100.00 minimum penalty for working without permit.
Inspection fees paid upfront (e.g., $160 for 4 shed inspections).
§ 05
Required inspections
Scheduling and sequence
How to schedule
- (847) 416-7861 (phone)
- Inspection hours
- Monday - Friday, standard hours.
- Time windows
- Standard business hours
Typical sequence: Defined by project type.
§ 06
Frequently asked
Common questions about Island Lake permits
01 Do I need a building permit in Island Lake, IL? ▸
Most construction, additions, basement build-outs, decks, fences, roofs, HVAC.
02 How much does a building permit cost in Island Lake, IL? ▸
Building permit fees in Island Lake, IL are set by the local building department and vary by project type and valuation. The minimum permit fee is $100 (plus inspection fees). Fees are calculated as: Flat permit fee + set number of inspection fees.. Plan check fee: $50 non-refundable application fee..
03 How do I apply for a building permit in Island Lake, IL? ▸
To apply for a building permit in Island Lake, IL, follow these steps: 1. Submit completed application, plans, and contractor proposal. 2. Building Commissioner reviews submittal. 3. Pay fees (including $50 non-refundable app fee). 4. Permit issued.
04 What work is exempt from building permits in Island Lake, IL? ▸
Not all construction work requires a permit in Island Lake, IL. The following work is generally exempt: Cosmetic painting and flooring; Minor non-structural repairs. Note: Confirm specific exemptions with Building Commissioner. When in doubt, confirm with the local building department before starting work.
05 How do I schedule a building inspection in Island Lake, IL? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Island Lake, IL via: (847) 416-7861.
last verified April 2026
source Department of Building and Code Compliance ↗
entry id permits/illinois/mchenry/island-lake
Educational reference. Permit rules and fees change — confirm current requirements directly with Department of Building and Code Compliance before applying. Jaspector is not legal advice.