Applications & Construction Information
Inspections can be scheduled by calling 631-360-7522 during business hours or by filling out an online form .
- Arranging for Inspections (PDF)
- Commercial Inspections (PDF)
- Pressure Test (gas line) (PDF)
- Residential Inspection Procedures (for additions, alterations, etc) (PDF)
- Residential Inspections (For new single family dwellings ONLY) (PDF)
New York State Code for New Construction
- New York State Commercial Code (PDF)
- New York State Residential Code (PDF)
- Smithtown Climatic & Design Criteria Table R301.2(1)
Signs
- Permit Application (PDF)
- Code (PDF)
- Permit Instructions (PDF)
- Prohibited Signs (PDF)
Swimming Pools
- Applications (PDF)
- Instruction for Applications (PDF)
- Swimming Pool Engineering Acknowledgement (PDF)
- Swimming Pool Comments / Barrier Requirements (PDF)
Miscellaneous Information / Instructions / Codes
- Central Air Conditioning/HVAC (PDF)
- Deck Code/Deck (zoning) Location (PDF)
- Deck Information (PDF)
- Electrical Agencies (PDF)
- Finished Basements (PDF)
- Garage Conversions (PDF)
- Generator Guidelines (Residential) (PDF)
- Insurance requirements (PDF)
- Membrane Structures / Hoop Houses (PDF)
- Permitted Fence Locations (PDF)
- Retaining Walls - Engineering Department Requirements (PDF)
- Permitted Pavement Locations (PDF)
- Shed Code (PDF)
- Tank Removal/abandonment (PDF)
- Tennis/Sport Courts (PDF)
- Variance (PDF)
- Zoning Ordinance & Setbacks (PDF)
Commonly Used Forms/Affidavits
- Board of Health Affidavit (PDF)
- Complaint Form (PDF)
- Debris Removal Affidavit (PDF)
- Duplicate CO / CC or History Letter Request (PDF)
- Excavation Affidavit (PDF)
- FOIL Form - for Public Access to Records (PDF)
- Truss Notice/Affidavit (PDF)
Contact Us
William White
Building Director
Building Department
Physical Address View Map
23 Redwood Lane
Smithtown , NY 11787
23 Redwood Lane Smithtown NY 11787
Fax: (631) 360-7639
Office Hours
Monday through Friday 9:00 am to 4:00 pm - as of 9/1/22 Vestibule will be available for drop off applications and documents between the hours of 4:00 pm and 5:00 pm
Summer Office Hours
(July 1 through August 31) Monday through Friday 9:00 am to 3:00 pm (open to the public).
Inspector Hours
Monday through Friday 8:30 am to 4:30 pm Building Inspectors are available on request between 3:30 pm and 4:30 pm
Summer Inspector Hours
(July 1 through August 31) Monday through Friday 8:30 am to 3:30 pm Building Inspectors are available on request between 3:00 pm and 3:30 pm
