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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 Temporary Trailer and Portable Storage Unit Permit Application Popular



Application for temporary trailer and temporary storage: Commercial Uses – construction trailer, office trailer, temporary storage trailer, and Residential Uses - temporary residential trailer or portable storage units.

pdf Building Permit Requirements – Shell / Vacant Building Popular

A building may be partially constructed without all the interior elements necessary to complete the building; this document provides guidance on applying the NYS Uniform Code for these situations. A shell, speculative or white box building cannot be occupied or issued a CO upon completion. A separate building permit application for Interior Arrangement must be sought in order to receive a CO.

pdf Sign Permit Application Popular

FORM CAN BE FILLED IN ELECTRONICALLY.

FOR TRUSS SIGNS, PLEASE USE BUILDING PERMIT APPLICATION.

pdf BP-1 (Exemption for workers’ compensation and disability benefits insurance coverage) Popular

Affidavit of Exemption to Show Specific Proof of Workers’ Compensation Insurance Coverage for a 1, 2, 3 or 4 Family, Owner-Occupied Residence.

pdf Compliance Permit - Application and Requirements RESIDENTIAL Popular

Certificate of Compliance applications should be used in lieu of a building permit application if the structure was built more than 4 years ago.