Bolthole Index

Westchester County, New York

Zoning, building permits and septic rules in the Village of Elmsford, New York

The Village of Elmsford, New York requires a building permit from its Building Inspector before anyone builds, alters, demolishes or moves a building1. Elmsford adopts and enforces its own zoning code2. Septic permits are a separate question: the Westchester County Department of Health reviews new subsurface sewage systems, and we could not confirm a village septic rule3.

At a glance

Building permit
Required inside the village, issued by the Village Building Inspector1
Zoning
Yes, the village has its own zoning code with 11 districts24
Minimum lot (one-family)
At least 5,000 square feet and 50 feet of frontage in residence districts; 1/2 acre in Residence R-O56
Front and rear yards
Front yard mean depth of at least 20 feet in residence districts (except RCD)7
Septic
County Department of Health reviews new systems; village rule unconfirmed3
Certificate of occupancy
Required before a new or altered building is occupied8
RV or tiny-home living
Not confirmed; ask the Building Department9

Who to call

Building permits

Village of Elmsford Building / Planning / Zoning Department

Building, plumbing, HVAC, electrical, fire alarm, fire sprinkler and sign permits, inspections, and scheduling of the architectural review board, zoning board and planning board inside the village

914-345-1553

15 S Stone Avenue, Elmsford, NY 10523

Septic permits

Westchester County Department of Health, Realty Subdivision and Land Development Review

Reviews and permits every subdivision plan and new subsurface sewage treatment system across Westchester County

148 Martine Avenue, White Plains, NY 10601

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

Going off-grid in Village of Elmsford means bringing your own water and power. The kit we’d start with:

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Does Elmsford, NY have zoning, and what does it mean for lot size and setbacks?

Yes. The Village of Elmsford has its own zoning chapter, and the village is divided into 11 zoning districts4. Because New York gives zoning power to cities, towns and villages and not to counties, Westchester County does not zone Elmsford land10.

Dimensional rules depend on the district. In any residence district, a one-family house needs a lot of at least 5,000 square feet with at least 50 feet of frontage on a street 30 feet or more in width5. In the Residence R-O District, a residence needs a lot of at least 1/2 acre6. Residence districts other than RCD require a front yard with a mean depth of at least 20 feet, and Residence R-O and R-1 require a rear yard of at least 30 feet7. Check your parcel's district on the village zoning map before you rely on any of these numbers4.

Do you need a building permit in Elmsford, and who issues it?

Yes. Inside the Village of Elmsford, the owner, lessee, architect or builder must get a permit from the Building Inspector before moving, demolishing, erecting, constructing, altering or adding to a building1. The village lists exemptions, such as minor partitions, finish work and nonstructural repairs, and other village board or commission approvals must be granted before an application is complete1.

The Village of Elmsford Building / Planning / Zoning Department handles building, plumbing, HVAC, electrical, fire alarm, fire sprinkler and sign permits, and schedules the zoning, planning and architectural review boards9. Call 914-345-1553 or visit 15 S Stone Avenue9. Applications must be mailed or dropped off at Village Hall9. Westchester County does not issue Elmsford's building permits; the county's planning office only reviews certain referred actions and sends questions to the individual municipality11.

How do septic permits work inside Elmsford?

We could not confirm who regulates septic systems inside Elmsford village limits, and the village code materials we reviewed contain no septic-permit rule.

What is confirmed is the county layer. The Westchester County Department of Health reviews and permits every new subsurface sewage treatment system and subdivision plan in the county3, and it licenses septic contractors12. Statewide, alternative onsite systems need plan approval from the State or county health department official before construction13.

If the parcel you are considering is not on a public sewer, call the county Department of Health before you buy and ask whether a new system would be permitted on that lot3.

Can you live in an RV or tiny home in Elmsford?

We could not confirm a village rule on RV occupancy, tiny homes or manufactured homes, so ask the Building Department before you plan around any of them9.

The zoning code does speak to one related case. In the Residence R-O and R-1 districts, no private garage or other accessory building may be used for residential purposes14. A converted garage, shed or backyard cabin is therefore not a legal place to live in those districts.

Any dwelling that is built must also get a certificate of occupancy from the Building Inspector before anyone occupies it8.

Building a home in Elmsford: the steps, in order

  1. Find your parcel's zoning district on the village zoning map and check lot area, frontage and yards against the district rules4.
  2. Ask the Building Department whether your project needs approval from the zoning board, planning board or architectural review board, since those approvals must come before a building permit application is complete1.
  3. Submit the building permit application on the Building Inspector's form, signed by the owner or agent; the application is treated as abandoned after 90 days unless other approvals are pending15.
  4. Pay the fees in the village's Master Fee Schedule, which are due when you apply16.
  5. Leave work exposed until it is inspected: footing and foundation, framing, systems and final inspection17.
  6. Get the certificate of occupancy before moving in8.

What stays with Westchester County, and what to check before you buy in Elmsford

The county does not set Elmsford's zoning or issue its building permits10. Septic and subdivision review for the county's lots stay with the Westchester County Department of Health, 148 Martine Avenue, White Plains3.

Before buying, confirm the parcel's zoning district, whether it has public sewer, and whether it lies in a mapped flood zone, because private development in a flood hazard area needs a local floodplain permit18. Westchester County's median property tax bill is about $10,001 a year, an effective rate of 1.6%1920. For land outside the village, see the Westchester County page.

Watch-outs

  • We could not confirm who regulates septic systems inside Elmsford village; call the Westchester County Department of Health before you buy a lot that is not on public sewer3.
  • Village permit fees come from a Master Fee Schedule the Board of Trustees can change by resolution, so ask the Building Department for the current amounts16.
  • Work that needs other village board or commission approvals cannot have a complete building permit application until those approvals are granted1.
  • A permit application is treated as abandoned after 90 days unless other approvals are pending or a permit has been issued15.

Sources

  1. Village of Elmsford, NY, Chapter 109, Article I Administration (Village of Elmsford), quoted and re-checked
  2. Village of Elmsford, NY, Chapter 335 Zoning (Village of Elmsford), quoted and re-checked
  3. Westchester County Department of Health, Realty Subdivision and Land Development Review (health.westchestercountyny.gov)
  4. Village of Elmsford, NY, Chapter 335 Zoning (Village of Elmsford), quoted and re-checked
  5. Village of Elmsford, NY, Chapter 335 Zoning (Village of Elmsford), quoted and re-checked
  6. Village of Elmsford, NY, Chapter 335 Zoning (Village of Elmsford), quoted and re-checked
  7. Village of Elmsford, NY, Chapter 335 Zoning (Village of Elmsford), quoted and re-checked
  8. Village of Elmsford, NY, Chapter 109, Article I Administration (Village of Elmsford), quoted and re-checked
  9. Village of Elmsford Building / Planning / Zoning Department (elmsfordny.org)
  10. documents.dps.ny.gov (New York statewide rule), quoted and re-checked
  11. Director of Code Enforcement, quoted and re-checked
  12. Westchester County Code § 873.2405 — Definitions, quoted and re-checked
  13. NYS Register March 18, 2015 Rule Making Activities — Standards for Individual Onsite Water Supply and Individual Onsite Wastewater Treatment Systems (New York statewide rule), quoted and re-checked
  14. Village of Elmsford, NY, Chapter 335 Zoning (Village of Elmsford), quoted and re-checked
  15. Village of Elmsford, NY, Chapter 109, Article I Administration (Village of Elmsford), quoted and re-checked
  16. Village of Elmsford, NY, Chapter 162 Fees and Charges (Village of Elmsford), quoted and re-checked
  17. Village of Elmsford, NY, Chapter 109, Article I Administration (Village of Elmsford), quoted and re-checked
  18. Floodplain Management - NYSDEC (New York statewide rule), quoted and re-checked
  19. Median property tax bill: Bolthole Index county data
  20. Effective property tax rate: Bolthole Index county data

Written October 24, 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.

Answers from the rulebook for Village of Elmsford

Village of Elmsford’s own rules

  • Building permitRequired

    Construction, alteration, demolition, relocation, and specified equipment work inside Elmsford village.

    • Listed exemptions include certain playground equipment, minor partitions, finish work, portable listed equipment, specified equipment replacement, and nonstructural repairs.
    • Other Village-board or commission approvals must be granted before the application is complete.
    “Before commencing to move, demolish, erect, construct, alter or add to any premises or building or to make substantial additions to or changes in the plumbing, heating, elevator or electrical equipment of any building, the owner, lessee, architect or builder, or the agent of any one of them, shall secure from the Building Inspector, hereinafter called the "Inspector," a permit for the complete operation in question.”
  • InspectionsRequired

    Work performed under a building permit inside Elmsford village.

    • Work must remain accessible and exposed until inspected and accepted.
    • Applicable inspections include footing and foundation, framing, systems, Energy Code compliance, and final inspection.
    “Work shall remain accessible and exposed until inspected and accepted by the Building Inspector or by an inspector authorized by the Building Inspector.”
  • Certificate of occupancyRequired

    Buildings constructed, extended, reconstructed, or altered inside Elmsford village.

    • A building occupied during alteration may continue to be occupied for 30 days after completion of the alteration.
    • Where applicable, structural-observation/final-special-inspection documents and flood-hazard certifications are required before issuance.
    “No building hereafter constructed, extended, reconstructed or altered shall be occupied until a certificate of occupancy, as provided in Chapter 335, Zoning, shall have been issued by the Inspector, except that any building occupied during alteration may continue to be occupied in accordance with the provisions of this Part 1 for 30 days succeeding the completion of such alteration.”
  • Local zoningPresent (with conditions)

    Land inside Elmsford village limits.

    • Land use must conform to Chapter 335 where applicable.
    “For the purposes of this chapter, the Village of Elmsford is hereby divided into 11 classes of zones or districts as follows:”
  • Zoning districtsPublished (with conditions)

    Land inside Elmsford village.

    • District boundaries are established on the current Zoning Map, which is part of Chapter 335; copies are available for inspection in Village offices.

    number of zoning district classes: 11

    “For the purposes of this chapter, the Village of Elmsford is hereby divided into 11 classes of zones or districts as follows:”
  • Minimum dwelling sizeSpecified

    Dwelling units in mixed-use buildings in the Neighborhood Business District inside Elmsford village.

    • Mixed-use buildings require a special permit from the Village Board of Trustees and compliance with § 335-23.
    • Three-or-more-bedroom units require an additional 100 square feet per bedroom.

    studio minimum dwelling-unit area: 450 square feet · one-bedroom minimum dwelling-unit area: 600 square feet · two-bedroom minimum dwelling-unit area: 900 square feet

    “The minimum square feet for a dwelling unit shall be as follows: Studio, 450 square feet. One bedroom, 600 square feet. Two bedroom, 900 square feet. Three or more bedrooms, an additional 100 square feet per bedroom.”
  • Minimum lot sizeSpecified

    One-family residences in Residence R-1 and other residence districts inside Elmsford village, subject to any stricter district rule.

    • Lot frontage must be at least 50 feet on at least one street 30 feet or more in width.

    minimum lot area: >= 5000 square feet · minimum frontage: >= 50 feet (on at least one street 30 feet or more in width)

    “No lot within any residence district shall contain a residence for one family unless it shall have an area of at least 5,000 square feet and shall have a frontage of not less than 50 feet on at least one street 30 feet or more in width.”
    One more reviewed finding on this topic
    • Specified — New residences in the Residence R-O District inside Elmsford village.
      “No residence shall be erected on a lot or plot within a Residence R-O District unless said lot or plot on which the residence is to be erected shall have an area of at least 1/2 acre.”
  • SetbacksDistrict specific (with conditions)

    Residence districts inside Elmsford village, excluding RCD where separate controls apply.

    • For a block with pronounced uniform building alignment, new-building front yards must conform as nearly as practicable, but no more than 40 feet; the Board of Appeals may allow a reduction for a block with uniform lesser alignment.

    minimum front yard: >= 20 feet (Residence districts except RCD) · minimum rear yard: >= 30 feet (Residence R-O and R-1 Districts)

    “Within any residence district, except the RCD District, a front yard is required on every lot, which shall be of a mean depth of not less than 20 feet.”
  • Accessory dwellingsProhibited

    Accessory buildings in Residence R-O and Residence R-1 Districts inside Elmsford village.

    • This claim concerns a private garage or other accessory building in the listed districts.
    “No more than two garage spaces will be permitted on any lot, and no private garage or other accessory building shall be used for residential purposes.”
  • Subdividing landRegulated (with conditions)

    Subdivision of land inside Elmsford village.

    • Chapter 293 includes an approval procedure, preliminary-plat and final-plat provisions, required improvements, and subdivision-design requirements.
    “§ 293-10 Approval required; steps for approval.”
  • Driveway accessLimited

    Lots used for residence purposes inside Elmsford village.

    • A lot may instead have unobstructed access by easement or right-of-way at least 15 feet wide to a street at least 30 feet wide.

    minimum street abutment: >= 50 feet (or qualifying access easement/right-of-way) · minimum easement/right-of-way width: >= 15 feet (to a street at least 30 feet wide)

    “No lot shall hereafter contain any building used for residence purposes unless such lot abuts for at least 50 feet on at least one street having a width of not less than 30 feet, or unless it has an unobstructed easement of access or a right-of-way at least 15 feet wide to a street having a width of not less than 30 feet.”
  • Permit feesVariable (with conditions)

    Village permit, planning, zoning, building, construction, public-safety, and health applications.

    • The Master Fee Schedule may be amended by Board resolution from time to time.
    • Unless otherwise specifically provided, fees are due in advance upon application and nonpayment makes the application incomplete.
    “The Board of Trustees shall establish, by resolution, a Master Fee Schedule setting forth the fees to be charged to applicants in connection with all applications made pursuant to the laws of the Village of Elmsford, including, but not limited to, any application for licenses, permits, public safety and health matters, and planning, zoning, building and construction approval.”
  • Permit processPublished (with conditions)

    Building-permit applications inside Elmsford village.

    • Application is written on a Building Inspector form, signed by the owner or authorized agent, and must contain sufficient compliance information.
    • The application is abandoned after 90 days unless other approvals are pending or a permit is issued before expiration.

    application abandonment period: 90 days (unless other Village approvals are required and in process or a permit has been issued)

    “An application for a permit for any proposed work shall be deemed to have been abandoned upon the lapse of 90 days after the date of filing unless other approvals are required by and in process before, Village boards and commissions or a permit has been issued before the expiration of that period.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of Elmsford or Westchester County directly.

  • Owner-builder exemption — Owner-built residential work inside Elmsford village.
  • Living in an RV — RV occupancy on private land inside Elmsford village.
  • Camping on your land — Temporary camping on private land inside Elmsford village.
  • Tiny homes — Tiny-home occupancy inside Elmsford village.
  • Manufactured homes — Manufactured-home occupancy inside Elmsford village.
9 more unanswered
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Building in a floodplain
  • Short-term rentals

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 Village of Elmsford publishes no rule on the point, not that none exists. Westchester County’s page lists the county offices to call.

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