Bolthole Index

Westchester County, New York

Zoning, building permits and septic rules in Town of Mount Kisco, New York

Town of Mount Kisco is a town in Westchester County, New York. Town of Mount Kisco adopts its own zoning, so inside its limits Town of Mount Kisco’s rules apply, not the county’s. 3 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Westchester County page.

Answers from the rulebook for Town of Mount Kisco

Town of Mount Kisco’s own rules

  • Building code adoptedAdopted (with conditions)

    Buildings, structures, and premises inside the Village/Town of Mount Kisco.

    • Except as otherwise provided in the Uniform Code, Energy Code, other state law, or Chapter 51, all buildings, structures, and premises regardless of use or occupancy are subject to the article.
    “this article provides for the administration and enforcement of the new york state uniform fire prevention and building code (the uniform code) and the state energy conservation construction code (the energy code) in the village/town of mount kisco.”
  • Local zoningPresent (with conditions)

    Land inside the Village/Town of Mount Kisco.

    • Chapter 110 was amended in its entirety on October 13, 1987; subsequent amendments are noted where applicable.
    “adopted by the board of trustees of the village of mount kisco 3-27-1984 by l.l. no. 1-1984; amended in its entirety 10-13-1987 by l.l. no. 8-1987. subsequent amendments noted where applicable.”
  • Driveway accessRequired

    Driveway work inside Mount Kisco.

    • The fee schedule directs that a driveway permit be filed as a building permit.
    “bldg § 93-34 engineering driveway permit to be filed as building permit”

Still unanswered

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

  • Owner-builder exemption — Owner-built residential work inside Mount Kisco.
  • Minimum dwelling size — Single-family residential zoning districts inside Mount Kisco.
  • Minimum lot size — Single-family residential zoning districts inside Mount Kisco.
  • Setbacks — Single-family residential zoning districts inside Mount Kisco.
  • Lot coverage — Single-family residential zoning districts inside Mount Kisco.
16 more unanswered
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • 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 Town of Mount Kisco publishes no rule on the point, not that none exists. Westchester County’s page lists the county offices to call.

Off-grid gear

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

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