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Town of Smithtown (NY)

New York Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
SolarAPP+ StatusTargeted
Wet Stamps RequiredDigital Structural,Digital Electrical
Fire Setback Enforced1

Codes

NEC Code Version
2023
Code List

2025 NEW YORK STATE BUILDING CODE

2025 NEW YORK STATE RESIDENTIAL CODE

2025 NEW YORK STATE FIRE CODE

2025 NEW YORK STATE ENERGY CONSERVATION CODE

2025 NEW YORK STATE EXISTING BUILDING CODE

2025 NEW YORK STATE FUEL GAS CODE

2025 NEW YORK STATE MECHANICAL CODE

2025 NEW YORK STATE PLUMBING CODE

2025 NEW YORK STATE ENERGY STANDARD FOR SITES AND BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS

2023 NATIONAL ELECTRICAL CODE

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate
How Many Plansets Required
3
Revision Required
0
New Planset Required For Module Swap
0

Stamps

Ee Stamp Required On SLD
Yes
Wet Stamps Required
Digital Structural,Digital Electrical
Structural Calculations Required
Yes
Stamp Location On Plans
Unspecified
Date On Stamps
Expiration Date

Fire setbacks

Fire Setback Enforced
1
Setback Notes

PV Array Placement & Fire Pathways

  • Ridge Clearance: Panels must be at least 18 inches from the horizontal ridge.
  • Escape Openings: No panels below emergency escape & rescue openings.

Pathways:

  • 36-inch-wide pathway required to emergency escape & rescue opening.
  • Two 36-inch pathways from lowest roof edge to ridge on separate roof planes.
  • One 36-inch pathway on street or driveway side of the roof.
  • Each roof plane with panels must have a 36-inch pathway from lowest edge to ridge (on same or adjacent plane).

Fire Setback Exceptions

  • Not required for detached, uninhabitable structures (e.g., garages, carports, trellises).
  • Not required for roof slopes ≤17% (2:12 pitch).

Structural & loads

Wind Speed
85
Snow Load
999
Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes


Minimum Ground On Roof
#10

Electrical

Allowed POI
PV Breaker,Line Side Taps,Load Side Taps,Meter Adapter
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.91

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

Energy Storage System (ESS) Requirements

  • Spacing: ESS units must be at least 3 feet apart.
  • Capacity: Each unit must not exceed 20 kWh.
  • Installation Standards: Must follow NFPA 70.
  • Inverters: Must be UL 1741 or UL 9540 listed.
  • Vehicle Protection: ESS in areas subject to vehicle damage must have barriers.

Allowed Locations

  • Detached garages & accessory structures.
  • Attached garages (must be separated from living/sleeping areas per Section R302).
  • Outdoors (minimum 3 feet from doors & windows).
  • Utility/storage closets within living/sleeping areas.

Fire Safety

  • Smoke alarms required per Section R314.
  • Heat detector/alarm required where smoke alarms cannot be installed.
Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Plan Set Requirements
  • Panels & Modules: Must be listed and labeled per UL 1703.
  • Inverters: Must be listed and labeled per UL 1741.
  • Grid-Tied Systems: Must use inverters listed for utility interaction.
Cover Page

Must include

  • Project Details: Address, map, section, block, and lot number.
  • Owner Information: Name, address, and phone number.
  • Preparer Information: Name, address, and phone number of the person preparing the plans.
Custom Placards Required
0

Ground mount

Ground Mount Fencing Required
Mesh/Scrim
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the Town of Smithtown (NY) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.