Ontario County, New York Rochester & the Finger Lakes

Barndominium Builders in Ontario County, New York

New York Barndominium Builders builds barndominiums for owners with land in Ontario County, from the county seat in the City of Canandaigua to Victor, Farmington, Naples and Bristol. It is lake and farm country: hillside parcels above Canandaigua and Honeoye lakes, open fields around the villages, and plenty of acreage enrolled in the county's agricultural district. That mix is why each project starts with the parcel rather than the floor plan. Lakeside land sits in a drinking water watershed with its own septic inspections, and inland farm parcels bring their own questions about access, drainage and district status. If you would like to hire your own electrician and plumber, barndominium kits put the steel frame, roof and wall panels on your lot for you to finish. If you would like us to carry it all, we quote a turnkey build. Pole barn homes suit lake owners who want boat storage or a wide shop attached to the living space. Because every town and village here keeps its own code enforcement office, the office for your parcel sets the rules we design to. The survey is the place to describe your lot and what you hope to build on it.

Ontario County at a glance

County: Ontario County
Building permit: The town, village or city where the land sits
Local facts on this page: 4, each linked to its source

Tell us about your land

Before you build in Ontario County

The local answers that shape a build here, each taken from the office or document that publishes it. Rules change, so we confirm them again against your parcel before drawing.

Town, village or city permitWho issues the building permit

Town, village or city code enforcement office

Ontario County Public Health directs owners with building code, zoning or property questions to their own town, village or city code enforcement office, such as the City of Canandaigua, the Town of Farmington, or the combined Victor office for the town and village. That local office reviews the plans for a new home and issues its building permit.

Source: Complaints, Permits, and Licensing, Ontario County (ontariocountyny.gov)

State health district officeSeptic or sewer

Town code enforcement officer, with the State Health Department's Geneva District Office

Septic permits here run through the town. In the Town of Canandaigua a new onsite system needs a building permit from the town Code Enforcement Officer and a design by a design professional, and the State Health Department, DEC or the Canandaigua Lake Watershed Inspector may also have to approve it.

Source: Article II: General Regulations, Design Standards, and Requirements, Town of Canandaigua (ecode360.com)

Agricultural District

Ontario County combined its districts into Consolidated Agricultural District 1 in 2020: 256,478 acres, of which 184,186 acres were in 833 farms (2020 data). Owners can add land in annual enrollment periods, and the next full review is due by November 11, 2028.

Source: County Initiated, State Certified Agricultural District, Ontario County (ontariocountyny.gov)

Environmental health is state-run: Ontario County Public Health has no environmental health specialists of its own. The State Health Department's Geneva District Office is the main enforcement body for environmental health rules in the county, and its staff review public water system plans.
Canandaigua Lake watershed: Canandaigua Lake supplies drinking water to more than 70,000 people. The Ontario County Soil and Water Conservation District runs the Watershed Inspection Program for the Canandaigua Lake Watershed Commission, inspecting septic systems when a property is sold and consulting on new construction and repairs in the watershed.

Building on land near Ontario County

Lakefront and lake-view land in Ontario County is steep in places and sits in watersheds that supply drinking water, so septic design and inspections carry more weight here than on flat farmland. Inland parcels around the villages are gentler, but many are enrolled farmland with district rules on referrals and utilities. Some buyers compare this county with Monroe County to the north or Livingston County to the west, where lots tend to be flatter. On any parcel we confirm the town's code office and septic route first, then design the frame for that exact site.

Where we build in this part of New York

Rochester & the Finger Lakes

Barndominium kits delivered to Ontario County

Kits, pole barn homes, custom plans and turnkey builds. The parcel decides the budget more than the floor area does, so we price against your land rather than a rate card.

Barndominium Kits

Barndominium kits NY: barndo kits and shell kits for New York land, steel or pole barn, sized to the snow at your address and delivered upstate.

Pole Barn Homes

Pole barn homes in New York: post-frame houses and barndominiums with footings below the frost line, trusses sized for snow, and conventional finishes.

Custom Plans

Custom barndominium plans for New York: your layout, your shop, drawn around the land, the snow and the approvals your town will ask for.

See every service

Have land in or near Ontario County? Tell us about the parcel and what you want to build, and we will check it against the local rules before anything is drawn.

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Building in Ontario County: questions

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What does it cost to build a barndominium in Ontario County?

Lake parcels usually cost more to prepare than inland ones: slopes need more grading, and watershed septic rules can require a more involved system. Finishes and size then decide the rest. We don't quote prices of our own online; the barndominium cost guide gathers sourced figures, and the survey lets us price your design for your actual lot.

Do I need a building permit for a barndominium in Ontario County?

Yes. The code enforcement office of your town, village or city issues it; the county itself does not. Your home is built to the 2025 Residential Code of New York State, in force for permit applications made from 31 December 2025, and in towns such as Canandaigua the same office also permits the septic system.

Can I build on a lot by Canandaigua Lake?

Yes, but plan for the watershed. The Canandaigua Lake Watershed Inspection Program inspects septic systems at sale and consults on new construction, and a new system in the Town of Canandaigua needs a design professional's plan and a town permit. We confirm those steps before you finalise the house layout.

Keep reading

What usually comes next once you know what Ontario County allows.

Barndominium Cost Guide

Sourced per-square-foot ranges by tier and size, and what moves the number on your land.

Read it

Is a Barndominium Legal in New York?

Zoning, septic and who inspects, before you buy the land.

Read it

How Long Does It Take?

From parcel to move-in, and which steps set the clock.

Read it

Sources for this page

The published pages behind the Ontario County facts above. Rules change, so check the current version with the office before you rely on it.

Barndominium builders near Ontario County

Nearby places we also build in. Across a city, town or county line the permit office, zoning and septic rules can change, so each has its own page.

New York county

New York county

New York county

Monroe County, New York

Building in Ontario County?

Start with the survey. Tell us where the land is and what you want on it, and we will come back with which office permits it, what it will allow, and a plan to fit.

Start the survey