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 (PDF) - Documents below have been combined into this one PDF file.
    1. Building Permit Application
    2. Zoning Worksheet – Residential
    3. Building Site and Utility Data Worksheet
    4. Water Service and Meter Worksheet
    5. Fire Protection – Letter of Understanding (separate Fire Protection permit required)
    6. Contractor of Record (Contractor License Requirements / Contractor License Application)

Application Fees & Deposits


  • Building Construction and Inspection Fee - $1.60 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 (PDF) prior to submitting your drawings and read through the Common Residential Plan Submission Mistakes (PDF).

*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:

Construction Submittal Requirements


The following will apply during the course of construction:

Required Inspections


Additional Resources