Steuben County, New York
Town of Hornellsville is a town in Steuben County, New York. Town of Hornellsville adopts its own zoning, so inside its limits Town of Hornellsville’s rules apply, not the county’s. 15 rules below are quoted from official sources and independently re-checked, most recently on November 7, 2026. Rules for unincorporated land are on the Steuben County page.
Work covered by the Town of Hornellsville building-permit application.
“An approved Building Permit MUST BE obtained before work may be started.”
An owner performing work on a Hornellsville permit project.
“If you, as owner, will be doing the work yourself, you must sign a waiver of Workers Compensation Insurance. If you, as owner, will hire ANYONE to work on the project— you must have a Workers Compensation Insurance policy in effect during the life of the project.”
Permitted Hornellsville projects having listed construction elements.
advance inspection notice: >= 48 hours
“If your project has any of the following elements, you MUST notify the Officer at least 48 hours in advance for: Footers/ Foundation; Structural Elements; Insulation; Electrical (will also need Board of Underwriters Inspection); Plumbing; Septic; Heating, Ventilation, Air Conditioning (HVAC) System.”
Use of a building, in whole or in part, inside Hornellsville town.
“Use of the building is NOT permitted, either in whole or in part, until the Code Enforcement Officer has granted a Certificate of Occupancy, indicating compliance with the NYS Uniform Fire Prevention & Building Code.”
Land inside the Town of Hornellsville, Steuben County, New York.
“For the purpose of promoting the public health, safety, morals and general welfare of the Town of Hornellsville, the Town is hereby divided into the following types of Districts:”
All land inside Hornellsville town subject to the zoning map.
“Said districts are bounded as shown on a map entitled "Zoning Map of the Town of Hornellsville", adopted and certified by the Town Clerk, which accompanies and which, with all explanatory matter thereon, is hereby made a part of this Ordinance.”
Buildings in Hornellsville zoning districts.
“No building shall hereafter be erected or altered to [...] have narrower or smaller rear yards, front yards, side yards than is specified herein for the district in which such building is located.”
Buildings in Hornellsville zoning districts.
“No building shall hereafter be erected or altered to [...] occupy a greater percentage of lot area; or, [...] than is specified herein for the district in which such building is located.”
Buildings in Hornellsville zoning districts.
“No building shall hereafter be erected or altered to [...] exceed the height; [...] than is specified herein for the district in which such building is located.”
Manufactured/mobile homes inside Hornellsville town.
“Single-family manufactured/mobile homes [...] 702.5 Prohibited Uses: Manufactured/Mobile homes.”
New or repaired septic systems submitted with a Hornellsville building-permit application.
“Provide proof of approval of individual sewage disposal system and plans. MUST contact Engineer for a “Perc Test” if installing a new system. [...] Septic System must be engineered by a design professional, including blueprints with application for all new or any repair of a system!”
Permitted septic work inside Hornellsville town.
advance inspection notice: >= 48 hours
“If your project has any of the following elements, you MUST notify the Officer at least 48 hours in advance for: Footers/ Foundation; Structural Elements; Insulation; Electrical (will also need Board of Underwriters Inspection); Plumbing; Septic; Heating, Ventilation, Air Conditioning (HVAC) System.”
Subdivisions in the AG Agricultural District in Hornellsville town.
new lots before special-use-permit threshold: > 4 lots (AG Agricultural District)
“Non-farm dwellings so long as not more than four (4) new lots are created under the regulations of a minor subdivision [...] Subdivisions in excess of four (4) lots”
Town Code Enforcement permits and applications.
septic-system fee: 60 USD · manufactured-home fee: 145-230 USD (single-wide to double-wide)
“B. Manufactured Home $145.00 - Single-wide / $230.00 - Double-wide C. Septic System $60.00 D. Demolition of Existing Structure $50.00”
Building-permit applications inside Hornellsville town.
permit expiration: 1 year (from date of issue) · work commencement deadline: <= 90 days (from issuance)
“A permit expires one year from date of issue or is void if work is not begun within 90 days of issuance. Applications for extension shall be obtained from the Code Enforcement Officer. ANY CHANGES to the plans or specifications filed with the permit application MUST BE Approved by the Code Enforcement Officer before changes may be made.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Hornellsville or Steuben County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Hornellsville publishes no rule on the point, not that none exists. Steuben County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Hornellsville means bringing your own water and power. The kit we’d start with:
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