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- Single Family Addition
Single Family Addition
When the location of any part of the exterior walls and roof of a single family residence are changed, an addition permit is required. Examples would be single or multi-story addition, screen or open porch with roof, 3-season room, etc. See below for permit submittal requirements and for general construction information.
Application Requirements
- Permit Application Packet - Documents below have been combined into this one PDF file.
- Building Permit Application
- Zoning Worksheet – Residential
- Building Site and Utility Data Worksheet
- Water Service and Meter Worksheet
- Fire Protection – Letter of Understanding (separate Fire Protection permit required)
- Contractor of Record (Contractor License Requirements / Contractor License Application)
Application Fees & Deposits
- Building Construction and Inspection Fee - $2.05 per square feet of floor area (One of the fees due at time of permit pick-up)
- Permit Application Deposit - $250 (Due at time of permit application submission)
- Additional fees may apply at time of permit pick-up
Drawing Requirements (To Be Submitted With Permit Application)
Please review the Residential Plan Review Checklist prior to submitting your drawings and read through the Common Residential Plan Submission Mistakes.
- Construction Documents - 4 sets* (See Architectural Drawing Requirements)
- Civil Engineering Drawings - 4 rolled sets*
- Plat of Survey - 4 copies (survey must be sealed and be “to scale”)
*The Village of Northbrook Standard Detail Sheet should be included within the civil engineering drawing set.
Separate Permit Requirements
The following may occur with the construction of a new single family residence and require a separate permit:
- Back-Up Generator
- Deck/Patio (if not shown on the approved drawings for the new residence)
- Elevator
- Fence
- Finish of Basement/Attic Space (if not shown on the approved drawings for residence)
- Mission Brook Sanitary District Sewer Application - For properties located within the Mission Brook Sanitary District
- Swimming Pool (Indoor or outdoor)
- Tree Removal
Construction Submittal Requirements
The following will apply during the course of construction:
- Energy Certificate and Instructions - Included in permit documents returned to applicant upon permit pick-up
- Permit Revision Application
- Spot/Location Survey Approval
Final Inspection Checklists
Additional Resources
- Insulation Change During Construction
- Basic Zoning Information
- Certificate of Occupancy Request
- Energy Code (2015 IECC) Information
- Impervious Surface Fee Information
- Impervious Surface Fee Map
- Typical Residential Building Construction Notes