Building permits, zoning and land rules in Niagara County, New York

Yes. Building permits in Niagara County are required for work that must comply with the New York Uniform Code, while the town or city where the property lies administers the permit^1,4. The 2025 Uniform Code has applied to regulated building-permit applications since December 31, 2025⁶.

A local code office may exempt listed minor work, including a qualifying one-story detached shed no larger than 144 square feet, but exempt work must still comply with the codes⁷. An agricultural building that meets the state definitions and exemptions may escape the minimum state permit requirement, but the municipality may still require a permit for zoning or other local rules⁸. Work subject to a permit must be inspected before the authority issues a certificate of occupancy or compliance⁵. That certificate is required for permitted work and changes in use or occupancy classification⁵. Manufactured-home installation, alteration and covered repair work also require a building permit¹.

Call the building inspector or code enforcement officer for the town or city where the land sits⁴. The local application must give the code official enough information and documents to determine compliance with the Uniform Code and Energy Code⁵. The Town of Cambria illustrates the local process: its building inspector is also its code enforcement officer, and appointments are made at 716-433-7664, ext. 111⁹. Cambria requires stamped engineered plans, a survey showing the house plot plan, county septic certification and an energy compliance report before processing a permit or issuing an address⁹. Requirements and fees can differ elsewhere, so use Cambria's list only for property in Cambria.

Building permits stay with the town or city, but septic permits for every address in the county come from the county health office: contact the Niagara County Department of Health Environmental Health Division at 55 Stevens Street in Lockport or (716) 439-7444¹⁰. We could not confirm a countywide driveway-approval rule. A new or modified residential driveway on a state highway requires a New York State Department of Transportation permit¹¹.

Land-use decisions and regulations in Niagara County are primarily the jurisdiction of its 20 municipalities, and the county's own plan reports that all 20 had zoning regulations in the 2007 planning census, so zoning approval comes from the city, town or village and not from the county². Lot size, setbacks, building height, lot coverage and minimum dwelling size therefore depend on the municipality and zoning district; we could not confirm one countywide standard for those questions. Before buying, ask the municipal zoning office for the parcel's district and the rules for the exact use you propose.

Subdivision approval begins locally where a town board has authorized its planning board to review plats outside incorporated villages¹². Niagara County reports that its municipalities regulate subdivisions to differing degrees². After local review, subdivision maps go first to the Niagara County Office of Real Property, where a fee is collected and form RPTS-503 is issued; tax certificates are also needed from the County Treasurer before filing with the County Clerk¹³.

The Niagara County Board of Health enforces septic rules within the Niagara County Health District³. Written approval from the Public Health Director is required before anyone constructs, installs, connects, alters or extends a sewage-disposal system³. New-system plans for vacant lots must be prepared by a licensed New York State Professional Engineer for County Health review³. The published design-plan review fee is $290, while an ownership-transfer evaluation for a standard or sand-filter system is $505; the county page labels those fees effective January 1, 2018³.

Only 1.6% of Niagara County soils rate free of severe limitations for conventional septic drain fields¹⁴. A standard field requires a percolation rate below 60 minutes per inch at a 24-inch depth and at least two feet between leach-line bottoms and impervious soil or high groundwater¹⁵. Failed testing can push the design toward a sand-filter system and higher cost¹⁵. The separate state discharge permit exemption for qualifying systems below 1,000 gallons per day does not remove county approval¹⁶.

We could not confirm a countywide rule allowing residential or long-term RV occupancy in Niagara County. Ask the city, town or village zoning office whether an RV may be occupied on the parcel, whether temporary occupancy during construction is allowed and what time limit applies; land-use regulation is primarily municipal¹⁷.

A tiny house regulated as a building needs the municipal permit required for Uniform Code work, an inspection and a certificate of occupancy or compliance before occupancy^1,5. We could not confirm a countywide tiny-home rule or minimum dwelling size, so ask the local zoning office before choosing a design. Where no municipal or communal wastewater system is available, New York allows an individual onsite wastewater system that complies with state standards¹⁸. Niagara County Health must still approve construction, installation, connection, alteration or extension of the sewage-disposal system³.

1. Ask the city, town or village building and zoning offices for the parcel's allowed use, setbacks and permit checklist^2,4.
2. Have a licensed New York State Professional Engineer evaluate the site and prepare the septic design required for a vacant lot³.
3. Submit the septic plan to Niagara County Health and obtain written approval before septic work begins³. The published plan-review fee is $290, effective January 1, 2018³.
4. Prepare enough construction information and documentation for the local code official to evaluate compliance with the Uniform Code and Energy Code⁵. Cambria, for example, asks for stamped engineered plans, a survey and plot plan, county septic certification and an energy report⁹.
5. Obtain the municipal building permit before work covered by the Uniform Code starts¹.
6. Complete the required inspection before the authority issues the occupancy or compliance certificate⁵.
7. Obtain that certificate before occupying the home⁵.

For an existing home, Niagara County Health conducts septic dye-test inspections before sale and also reviews tests completed by private engineers³. The published ownership-transfer evaluation fee is $505 for a standard or sand-filter system, effective January 1, 2018³. The home generally must have been occupied for 30 days, and frozen or snow-covered ground can prevent testing¹⁵. For vacant land, only 1.6% of county soils rate free of severe limitations for conventional drain fields, so make septic feasibility a purchase contingency¹⁴.

Ask the municipality about zoning and local road access because those rules depend on location. Development in a FEMA-mapped Special Flood Hazard Area requires a local floodplain-development permit¹⁹. A new or modified driveway serving a residence on a state highway requires a state permit¹¹. Ask Environmental Health whether a private well needs separate approval; we could not confirm a countywide well-permit rule. For cost context, farmland averages about $3,796 per acre, a typical home value is about $259,222, the effective property-tax rate is 2.3% and the median annual property-tax bill is $4,052¹⁴.