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A Message from the Supervisor

“Welcome to Islip, the 3rd largest town in New York State, but with an endearing small town feel. We are so proud of our town…our beaches, golf courses, marinas, parks, housing opportunities for all, businesses, industrial parks, healthcare and educational institutions including our own Islip MacArthur Airport that provides many job opportunities. I sincerely hope you find this website helpful.” - Angie

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Folder Building Division - Permits Section

pdf When is a Permit Required? Popular

When is a Permit Required?

pdf Building Permit – Solar Permit Field Inspection Checklist Popular

Must be completed and certified by the design professional or third party inspection agency after installation.

pdf Building Permit – Solar Permit Application Submittal Requirements Popular

NY State Unified Solar Permit Application Submittal Requirements for systems with a rated DC capacity of 25 kW or less.

pdf Building Permit – Solar Permit Application Popular

NY State Unified Solar Permit Application for systems with a rated DC capacity of 25 kW or less.

pdf Inspection Process – Building & Plumbing Popular

General guideline for applicants and contractors in understanding the inspection process for issued permits

pdf Building Permit – Elevator Permit Application and Requirements Popular

This is a fillable form. Handwritten applications will not be accepted

pdf Type I and Type II Kitchen Hood Submittal Checklist 2020 Popular

Required for any commercial kitchen hood application.