In Ulster County, New York, covered construction requires a building permit under the statewide Uniform Code, but the issuing authority depends on the town1. Most applicants deal with their town's code enforcement officer; properly opted-out localities use the Ulster County Department of Health2. Zoning is municipal3, while the county Health Department reviews and approves residential, commercial and small permitted community wastewater systems4.
At a glance
- Building permit
- Required statewide; issued by your town's code enforcement officer, or by the county Health Department only in "opted out" towns1
- Zoning
- Set town by town, not countywide — confirm with your specific town3
- Septic permits
- Ulster County Department of Health, Environmental Health Division5
- Manufactured-home owner installation
- An owner-occupant may seek installer certification; required homeowner work needs supervision and certification by a qualified installer6
- Certificate of occupancy
- Required before occupying work that needed a building permit, statewide7
- Septic timeline
- Design, review and approval can take up to 6 months for a typical residential lot8
- Lot splits outside villages
- Town planning boards review and approve subdivision plats where the town board has authorized it9
Who to call
Septic permits
Ulster County Department of Health, Environmental Health Division
Sewage disposal system (OWTS/septic) plan review, permitting and construction inspection countywide
239 Golden Hill Lane, Kingston, NY 12401
Codes & inspections
Administers and enforces the NYS Uniform Code and issues building permits only in towns that have opted out of running their own code-enforcement program; every other town issues its own permits
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Ulster County, New York?
Yes. Covered construction in Ulster County requires a building permit under New York's Uniform Code, and applications submitted now must comply with the code that took effect in 202510. Your town's code enforcement officer normally issues the permit1. For a properly opted-out locality, the Environmental Sanitation Division of the Ulster County Department of Health administers the code and issues the permit instead2. Ask the town clerk which authority serves the parcel before filing. The owner-builder provision we could confirm is limited to an owner-occupant installing a manufactured home: the owner may apply for installer certification, and any required component the homeowner completes must be supervised and certified by a qualified installer6.
Who issues building permits in Ulster County, and how do you reach them?
Ulster County does not provide one permit counter for every parcel: call the town's code enforcement officer first because towns normally administer the statewide code1. The county Environmental Sanitation Division serves only properly opted-out localities2. Permit work is subject to construction inspections, and the permit holder must keep it accessible until accepted and notify the authority when it is ready11. For a manufactured home, the code enforcement official independently determines compliance and inspects field-attached or assembled components12. Permitted manufactured-home work also requires a certificate of occupancy or compliance before occupancy13.
Does Ulster County have zoning?
Zoning in Ulster County is set town by town rather than by the county — the Town of Ulster, for example, divides the town into zoning districts and requires building permits and certificates of compliance consistent with its own zoning code, and that pattern (a town-specific zoning law with its own districts) is how zoning works across the county's other towns too3. That means minimum lot size, setbacks, and whether an RV or accessory dwelling is allowed all depend on which town your parcel sits in — never assume one town's zoning answer applies to another town in the same county. Outside incorporated villages, a town board may also authorize its planning board to review and approve subdivision plats, so splitting a parcel usually means a town-level review too9.
How do septic permits work in Ulster County?
The Ulster County Department of Health reviews and approves residential, commercial and small permitted community wastewater systems4. Submit a complete application and design drawings; at least two copies go to the county, and approval is followed by a construction permit14. Schedule the county site visit for the soil-profile excavation early8. The process can take up to 6 months on smaller residential properties, depending on county and design-professional workload8. During construction, county field representatives verify the approved design, and a professional engineer certifies completion; submit the well log too if a well was drilled15. Only 0% of county soils are rated without severe limits for a conventional drain field, so make site evaluation and system design an early contingency16. Most towns require approved OWTS plans before a building permit8. A qualifying discharge below 1,000 gallons per day avoids a separate state SPDES permit but not county approval17.
Can you live in an RV or tiny home on your land in Ulster County?
We could not confirm a countywide answer to this from Ulster County or Town of Ulster sources — because zoning is set town by town here, whether an RV or tiny home can be a residence on your parcel depends entirely on your specific town's zoning code, not a single county rule3. Any structure you do place still needs a certificate of occupancy or certificate of compliance before you can legally live in it, whatever your town's zoning ultimately allows7.
What are the steps to build a home in Ulster County, in order?
- Confirm which town your parcel is in and check that town's zoning code for lot size, setback and use rules — Ulster County itself does not set these3.
- Ask your town clerk or code enforcement officer whether your town issues its own building permits or is one of the properly opted out localities that goes through the county instead2.
- Have a design professional prepare a Sewage Disposal System application and schedule a county site visit for the soil-profile excavation early, since design, review and approval can take up to 6 months8.
- Submit engineering drawings and at least two copies to the Ulster County Department of Health for OWTS approval8.
- Apply for a building permit from your town's code enforcement officer (or the county Environmental Sanitation Division if your town opted out); most towns want the approved septic plans in hand first28.
- Complete required construction inspections under the statewide Uniform Code before requesting a certificate of occupancy11.
- Get your certificate of occupancy or certificate of compliance before moving in — occupancy of permitted work isn't legal without one7.
What should you check before you buy land in Ulster County?
Find out which town the parcel is in first because municipal zoning controls use, setbacks and lot standards3. Only 0% of Ulster County soils are rated without severe limits for a conventional drain field, so make site evaluation and system design part of the purchase contingency16. The county is 88.7% wooded, and 50.6% of its land has a slope of 15% or less, making access, clearing and grading parcel-specific costs1819. Population density is 162.2 people per square mile, and the nearest city of 100,000 or more is about 58 miles from the county center2021. The typical home value is $450,806; the median annual property-tax bill is $6,124 at an effective rate of 1.9%, while farmland averages about $8,701 per acre22232425. We could not confirm a countywide private-well permit rule, so ask the county Health Department what applies before drilling.
Watch-outs
- Ulster County has no single countywide building department — permitting authority depends entirely on your town, with a county fallback only for towns that have properly opted out of running their own program; confirm which applies to your parcel before you assume either way2.
- Septic design, review and county approval can take up to 6 months on a typical residential lot, and most towns require approved septic plans before they'll issue a building permit — start the septic process early8.
Sources
- Ulster County - Local Law No. 1 of 2023 (Administration & Enforcement of Building Code) (2026 county census)
- Ulster County Department of Health (Environmental Sanitation Division) — for "properly opted out" localities only (legislature.ulstercountyny.gov)
- Town of Ulster - Zoning Code (2026 county census)
- Water & Wastewater Regulation - Ulster County, quoted and re-checked
- Water & Wastewater Regulation - Ulster County (2026 county census)
- Division of Building Standards and Codes Frequently Asked Questions, quoted and re-checked
- Part 1203 Uniform Code and the Energy Code: Minimum Standards for Administration and Enforcement (New York statewide rule), quoted and re-checked
- Ulster County Department of Health, Environmental Health Division (ulstercountyny.gov)
- New York Town Law § 276: Subdivision review; approval of plats; development of filed plats (New York statewide rule), quoted and re-checked
- Notice of Adoption - New York State Uniform Code, quoted and re-checked
- Part 1203 Uniform Code and the Energy Code: Minimum Standards for Administration and Enforcement (New York statewide rule), quoted and re-checked
- Division of Building Standards and Codes Frequently Asked Questions, quoted and re-checked
- Division of Building Standards and Codes Frequently Asked Questions, quoted and re-checked
- Sewage Disposal System Application - Ulster County, quoted and re-checked
- Sewage Disposal System Application - Ulster County, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- State Pollutant Discharge Elimination System (SPDES) Permit Program (New York statewide rule), quoted and re-checked
- Wooded share of land: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Population density: Bolthole Index county data
- Distance to the nearest metro area: Bolthole Index county data
- Typical home value (Zillow): Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Farmland value per acre (USDA census): Bolthole Index county data
Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.