Digital permit application gateway
Start with the issuing authority’s own submission lane. A complete application package, accurate valuation, and accessible inspection path are the fastest route through statutory plan review.
Recommended first click
Use the official digital gateway to submit plans, monitor review comments, pay required charges, and request inspections when the permit is issued. If the link is unavailable, use the agency website or phone number on the administrative profile to confirm the current lane.
Typical review lane
N/A; municipal review timing varies. Nassau County’s §239-f building-permit review is generally reported to the municipality within 10 working days when applicable.
Treat this as a planning signal, not a guaranteed approval date. Completeness, corrections, resubmittals, and agency workload control the actual clock.
Verify the parcel is inside this agency’s service area and note whether a city, state, fire marshal, septic authority, or utility district also has approval authority.
Prepare legible plans, site information, project valuation, ownership authorization, contractor information, and any energy, floodplain, zoning, or utility documentation the issuing office requires.
Keep the permit number, approved plan set, correction comments, fee receipts, and inspection results together. Those records establish the compliance trail for the next trade.
Application documents
Before submission, call Nassau County Planning Commission: 516-571-5844; DPW: 516-571-6900 if the project involves a change of occupancy, structural alteration, accessory structure, demolition, or work near a regulated environmental feature.
Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
This record is marked Municipal Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact Nassau County Planning Commission: 516-571-5844; DPW: 516-571-6900.
N/A; municipal review timing varies. Nassau County’s §239-f building-permit review is generally reported to the municipality within 10 working days when applicable.
Contact the city, town, or village building department listed by Nassau County for the property’s location. For demolition, obtain the County Health Department rodent-free certificate before disturbing the site; for County roads or utilities, coordinate with Nassau County DPW.
Nassau County’s official pages state that the County does not issue ordinary building permits; authority rests with the towns, villages, and cities. The applicable municipality administers the 2025 New York State Uniform Fire Prevention and Building Code and 2025 Energy Conservation Construction Code, effective December 31, 2025, plus local laws. Nassau County may review County-road, sewer, subdivision, fire-marshal, or other specialized permits. No countywide private-building exemption list was identified. The local building authority determines exemptions for ordinary repairs, cosmetic work, agricultural structures, sheds, fences, and finish work. Demolition generally requires a local permit plus a Nassau County Health Department rodent-free certificate.
What makes an application complete
Before you click submit, make sure the drawings agree with the site plan, project description, valuation, ownership authorization, and contractor information. If the work changes structure, occupancy, drainage, fire protection, energy performance, or utility demand, describe that scope plainly. Ambiguous narratives create correction cycles and delay the field schedule.
Save the confirmation number, payment receipt, uploaded plan set, and every correction comment. Those records are the backbone of a defensible compliance file when multiple trades or agencies share responsibility.
Submission quality check
Site: address, parcel, access, setbacks, and existing conditions are consistent.
Scope: structural, mechanical, plumbing, electrical, fire, and energy work is identified.
Closeout: inspection contacts and the final approval path are understood before work begins.