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Multi-Family Alteration
An alteration permit is required when any interior walls or structural elements are to be changed within a residence. Examples of alterations include, removing walls between rooms; enlarging, removing or relocating windows or doors; interior structural changes in the wall, floor or roof; or constructing new tenant units, condominiums or apartments.
The following may apply during the course of construction:
Application Requirements
- Permit Application Packet (PDF) - The documents below have been combined into one PDF file.
- Permit Application
- Non-Residential Zoning Worksheet
- Building Site & Utility Data Worksheet
- Water Service & Meter Worksheet
- Tree Protection Agreement
- Fire Protection - Letter of Understanding (Separate Fire Protection permit required)
- Contractor of Record (Contractor License Requirements / Contractor License Application)
- Special Notice for Alterations to Residential Condominiums and Apartments
Application Fees & Deposits
- Permit Application Deposit - $250 ($100 for alterations that do not require a structural change) (Due at time of permit application submission)
- Building Permit and Inspection Fee - $200 minimum fee or under 1,500 square feet ($25 will apply per additional 1,000 square feet over 1,500) (Due at time of permit pick-up)
- Additional fees may apply at time of permit pick-up
Drawing Requirements
- Architectural Drawings - 4 rolled sets (See Architectural Drawing Requirements (PDF) for more information)
Construction Submittal Requirements
The following may apply during the course of construction:
Additional Resources
- Special Notice for Alterations to Residential Condominiums or Apartments (PDF)
- Basement or Attic Finishing (PDF)
- Guidelines For Scheduling Permit Inspections (PDF)
- Water Service and Meter Worksheet (PDF)
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Development & Planning Services
Physical Address
1225 Cedar Lane
Northbrook, IL 60062
Phone: 847-664-4050Fax: 847-272-5068