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Lewis County, New York Building Permit Guide

To get a building permit in Lewis County, confirm which office issues permits for the property’s address, then submit the application with your plans and required documents, pay the permit fees, and pass inspections before final approval. Alliance Permitting can prepare, file and track the permit for you and schedule the inspections.

Lewis County runs its own building code office in the Lowville courthouse, which issues building, zoning and floodplain permits through Cloudpermit for the towns and villages that hand it code enforcement; the Town of Leyden keeps its own officer.

Authority: Lewis County Building & Fire CodesCode: 2025 NYS Uniform Code and Energy CodePhone: 315-376-5377
Building permits
County code officeCourthouse, 7660 N State St, Lowville
Apply
CloudpermitOnline filing, status and inspection requests
Fees
Resolution 107-2025In effect since July 1, 2025
Office days
Tue and ThuOfficers in the field Mon, Wed, Fri

Unlike most New York counties, Lewis County issues building permits itself. Its Building & Fire Codes department in the county courthouse at Lowville reviews plans, issues building, zoning and floodplain development permits and inspects the work for the towns and villages that have handed code enforcement to the county, including the Towns of Lowville, Denmark, Greig and Watson and the Villages of Lowville and Lyons Falls. Applications are filed online through Cloudpermit, and fees follow the county’s schedule adopted as Resolution 107-2025.

What requires a building permit in Lewis County?

The county code office publishes a one-page quick list. Any work that must meet the Uniform Code needs a permit, including camps, tiny homes, containers and window replacement.

Permit needed

  • Additions of any size, including decks, ramps, porches and garages
  • Every habitable building: houses, seasonal camps, manufactured, modular and tiny homes
  • Sheds, garages, carports, decks and storage containers over 144 sq ft
  • Window replacement
  • Repairs that replace or extend gas, electrical, mechanical, plumbing, fire or structural systems
  • Pools holding more than 24 inches of water; hot tubs and spas
  • Wood, pellet and corn stoves and chimneys
  • Septic systems, on an engineer’s design
  • Solar and wind systems, demolition, changes of use, all commercial work

Watch the flood zone

  • In a FEMA flood hazard zone, grading, paving, excavation, drilling and even storing equipment or materials need a permit
  • The county issues the flood damage prevention permit for the places whose flood laws it administers
  • A non-habitable structure of 144 sq ft or less is off the quick list, but zoning may still apply

What the county decides and what the state holds

The building standards are the state’s 2025 Uniform Code and Energy Code; neither the county nor a town may make them stricter without Code Council approval. The county Board of Legislators sets the permit fees by resolution, and each town or village keeps its own zoning law and flood damage prevention law, which the county office enforces where the municipality asks it to.

Lewis County building department: who handles permitting

The county office lists a department director and four code enforcement officers. It is staffed at the courthouse on Tuesdays and Thursdays from 8:30 am to 4:30 pm, and the officers are in the field on Mondays, Wednesdays and Fridays, so call 315-376-5377 before driving in; appointments run 8:30 am to 3:30 pm on weekdays.

The Census counts 17 towns and 8 villages in the county and no city. Which office serves each one is only partly published: six municipalities say on their own pages that the county issues their permits, the Town of Leyden names its own officer, and for the rest the county posts their zoning permit forms or flood laws but no municipal page says who issues building permits. The table gives what the sources show.

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Building permit offices in Lewis County (25 municipalities)
PlaceWho issues building permitsOfficial page
Lowville (town)Lewis County Building & Fire Codes, since January 1, 2022, by the town’s own noticeTown notice
Lowville (village, in Lowville)Lewis County Building & Fire Codes; the village’s Building & Codes page lists the courthouse officeVillage codes page
Denmark (town)Lewis County Building & Fire Codes, by the town’s own pageTown notice
Castorland (village, in Denmark)Not stated; the county holds the village flood lawVillage site refused the request
Copenhagen (village, in Denmark)Not stated; the county holds the village flood lawNo official page found
Greig (town)Lewis County Building & Fire Codes, named as the town’s code enforcement contactTown code enforcement
Watson (town)Lewis County Building & Fire Codes, which now handles all of the town’s permits and inspectionsTown code enforcement
Leyden (town)The town’s own codes enforcement officer, Wednesdays 4:00–5:30 pm or by appointment, 315-681-8689Town codes enforcement
Port Leyden (village, in Leyden and Lyonsdale)Not stated; the county holds the village flood lawNo official page found
Lyons Falls (village, in West Turin and Lyonsdale)Lewis County Building & Fire Codes, by the village’s own pageVillage code enforcement
West Turin (town)Not stated; the county posts its zoning permit and flood lawNo official page found
Constableville (village, in West Turin)Not stated; the county holds the village flood lawNo official page found
Turin (town)Not stated; the county posts its zoning permit and flood lawNo official page found
Turin (village, in Turin)Not stated; the county posts its zoning permit and flood lawNo official page found
Croghan (town)Not stated; the county posts its site plan and zoning formsNo official page found
Croghan (village, in Croghan and New Bremen)Not stated; the county holds the village flood lawNo official page found
New Bremen (town)Not stated; the county posts its site plan and zoning formsNo official page found
Diana (town)Not stated; the town site posts its zoning lawNo official page found
Harrisburg (town)Not stated; the county posts its zoning permitNo official page found
Lewis (town)Not stated; the county posts its zoning permitNo official page found
Lyonsdale (town)Not stated on a town pageNo official page found
Martinsburg (town)Not stated; the county posts its land use permitNo official page found
Montague (town)Not stated; the county posts its zoning permitNo official page found
Osceola (town)Not stated; the county posts its zoning permitNo official page found
Pinckney (town)Not stated; the county posts its zoning permitNo official page found

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Three villages straddle town lines: Lyons Falls (West Turin and Lyonsdale), Port Leyden (Leyden and Lyonsdale) and Croghan (Croghan and New Bremen). A village follows its own arrangement, not its town’s, so a Port Leyden address is not covered by Leyden’s officer unless the village says so. Where a row says not stated, ask the county office, which holds that municipality’s forms.

What Lewis County itself does

  • Building & Fire Codes: building, zoning and floodplain permits, plan review, construction and fire safety inspections, the county septic permit in the communities it serves, junkyard licenses under Local Law 3 of 2021, and complaints about property maintenance or zoning.
  • Highway Department, 7361A East Road, Lowville (315-376-5350): driveway permits onto county roads, with the driveway staked for the supervisor before review, and overweight vehicle permits.
  • Planning and Community Development: staffs the County Planning Board, which meets on the third Thursday when referrals arrive and gives advisory comments under General Municipal Law 239-m; referrals are due at least 12 days before the meeting. It also runs the state Septic System Replacement Fund for Lewis County.
  • Public Health, 7785 N State Street, Lowville. Public drinking water systems in Lewis County fall to the state Health Department’s Watertown District Office (315-785-2277).

Lewis County permit types and applications

Residential permits

Cloudpermit lets you apply at any time, track the application, message the office, send revisions and request or cancel inspections, and pay by credit card; the code office still processes the payment itself. Create the account first, then pick the municipality and the work type. The county also posts a rough-cut lumber certification and an agricultural exemption form.

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Commercial permits

Commercial new construction, additions, alterations and changes of use all need a permit, with drawings by a design professional. Buildings used for public assembly, churches and non-profits, and operations such as tents, fireworks, hot work and hazardous materials carry operating permits tied to the county’s required fire inspections.

What comes before the building permit

  • Zoning: in the municipalities whose forms the county posts, the land use or zoning permit (and in Croghan and New Bremen a site plan review form) goes with the building application; manufactured homes in those two towns have their own zoning permit.
  • County referral: site plans, special permits and variances near a county road or municipal line are referred to the County Planning Board before the local board decides.
  • Flood zone: a flood damage prevention permit for any development in a mapped hazard area.
  • Septic: the county septic permit with an engineer’s or architect’s design.

Building permit fees in Lewis County

The Board of Legislators adopted the current schedule on June 3, 2025 as Resolution 107-2025, effective July 1, 2025. Floor area excludes cellars and non-habitable attics but includes attached garages and decks.

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Lewis County Building & Fire Code fees, effective July 1, 2025
WorkCounty fee (Resolution 107-2025)
New residential building, base fee by size1–144 sq ft $25; 145–1,499 sq ft $35 plus area fee; 1,500 sq ft and up $60 plus area fee
Residential area fee15 cents per sq ft from 145 to 3,499 sq ft; 20 cents from 3,500 to 4,499 sq ft; 30 cents from 4,500 sq ft
Residential alterations$40 for work valued up to $5,000, plus $5 for each $3,000 above that
Multiple dwellings, hotels, motelsUp to 3 units: $150 base plus 10 cents per sq ft; 4 or more units: $75 each plus 10 cents per sq ft
Commercial new construction; energy projects (towers, solar, storage)$300 base, plus $2 for each $1,000 of value over $100,000
Commercial additions; commercial alterations$300 plus 12 cents per sq ft; alterations $50 up to $5,000 of work, plus $5 per $3,000 above
Pool; pool with deck up to 144 sq ft$35; $50
Wood, pellet or corn stove or chimney; demolition; change of use$40; $30; $75
Septic system, residential; commercial or DOH-approved$50; $100
Operating permits (with required fire inspections)Churches and non-profits $0; assembly areas of 50 or more and tents $50; explosives and fireworks, hot work, hazardous materials $150; other operations $100
Split permits$100 base fee, then a split fee per segment
Work started without a permit$100 first offense, $500 second offense

Worked example for a $20,000 kitchen and bath renovation in a house: $40 covers the first $5,000, and the remaining $15,000 is five steps of $3,000 at $5 each, so the permit is $65. The schedule does not say how its new-house base fees and area fees combine, so ask the office for the figure on a new home. The septic form from 2023 still prints a $35 fee; the 2025 resolution sets $50, and the resolution is the adopted figure.

Trade permits and who may pull them

The county issues no separate electrical or plumbing license and its pages list no trade licensing; electrical, plumbing and mechanical work is covered by the building permit when the quick list calls for one. Septic systems are the exception that needs a professional: new or expanded systems must be designed and signed by an architect or engineer licensed in New York, and the application goes in with two copies of the design and a check made out to the Lewis County Clerk. The county links the state Workers’ Compensation Board’s permit requirements, so contractors file proof of coverage or a state exemption with the application.

How to get a building permit in Lewis County

1. Confirm who serves the parcel

Check the town or village in the table; in Leyden call the town officer, elsewhere start with the county office.

2. Check zoning and flood maps

Fill in the municipality’s zoning or land use permit and, in a flood zone, the flood damage prevention permit.

3. Line up septic and access

Have the septic designed by a licensed professional and apply to the Highway Department for a county-road driveway.

4. File on Cloudpermit

Upload the application, plans and insurance proof, and answer the office’s messages in the same account.

5. Pay and post the permit

Pay by card online or by check; work may not start before the permit issues.

6. Inspect and close out

Request each inspection in Cloudpermit and keep the final approval with the property records.

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Review, corrections and what causes delay

The county posts no review time. Most delays come from the office’s field schedule, a missing septic design, a zoning or flood permit that was not filed with the building application, or starting work early, which adds a $100 penalty the first time and $500 the second.

Inspections and certificates

Inspections are requested or cancelled in Cloudpermit, which notifies you when the status changes. On a septic job the applicant must tell the county officer when each stage is ready. Because officers spend three weekdays in the field, ask early for the date you need, especially for footing and final visits. Final approval closes the permit; the county also makes the state-required fire safety inspections of commercial, assembly and apartment buildings.

New York building code

New York builds on one statewide code, the Uniform Code, outside New York City; the 2025 edition and 2025 Energy Code took effect on 31 December 2025 (the all-electric provisions remain suspended by court order). Cities, towns and villages administer it, and local standards stricter than the code need Code Council approval. The Uniform Code in New York

Lewis County permit FAQ

Does Lewis County issue building permits?

Yes. Its Building & Fire Codes department issues building, zoning and floodplain permits for the municipalities that have handed it code enforcement, including the Towns of Lowville, Denmark, Greig and Watson and the Villages of Lowville and Lyons Falls.

Who issues permits in the Town of Leyden?

The town’s own codes enforcement officer, who keeps Wednesday hours from 4:00 to 5:30 pm or meets by appointment (315-681-8689).

How much is a permit for a renovation?

$40 for the first $5,000 of work plus $5 for each further $3,000, so a $20,000 renovation costs $65 under Resolution 107-2025.

Do I need a permit to replace windows or put down a shipping container?

Yes for windows. A storage container or shed needs one when it is over 144 sq ft, whether or not it is portable.

Who approves a septic system?

Where the county enforces the code, its code office issues the septic permit on a design signed by a New York licensed engineer or architect; the residential fee is $50.

Is there help paying for a failing septic system?

The county runs the state Septic System Replacement Fund for homes near listed waterbodies; it has reimbursed up to 50% of eligible costs, capped at $10,000 a project, and accepts some systems replaced after April 30, 2021.

Do I need a county permit for a driveway?

Yes on a county road: apply to the Highway Department in Lowville and stake the driveway first.

Is my town in the flood insurance program?

Every Lewis County community FEMA lists is in its participating section; Castorland, Pinckney and West Turin are shown with no special flood hazard area, and Montague has no entry.

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Lewis County permit search and official resources

Permits issued through Cloudpermit can be followed by the applicant in the same account. For older files or someone else’s property, file a Freedom of Information Law request with the county; records of the Town of Leyden’s officer are held by that town.

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This guide is provided by Alliance Permitting for general information about Lewis County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.