Bolthole Index

Waukesha County, Wisconsin

Zoning, building permits and septic rules in Village of Lannon, Wisconsin

Village of Lannon is a village in Waukesha County, Wisconsin. Village of Lannon adopts its own zoning, so inside its limits Village of Lannon’s rules apply, not the county’s. 6 rules below are quoted from official sources and independently re-checked, most recently on October 22, 2026. Rules for unincorporated land are on the Waukesha County page.

Answers from the rulebook for Village of Lannon

Village of Lannon’s own rules

  • Building permitRequired

    New structures, additions and remodels inside Lannon village limits

    • Construction may proceed after the village permit is issued; the fee schedule lists permit fees by type.
    • The well operation form separately requires a building permit before a well is separated for outdoor use.

    new structure/addition permit fee (residential 1 and 2 family): 0.38 USD per sq. ft. (minimum $150; calculated on all areas and all levels)

    “4. triple fee due if work is started prior to permit issuance”
  • InspectionsRequired

    Permitted work and well operation permits inside Lannon village limits

    • The village well form makes final approval contingent on a building inspection and a cross connection control survey.
    • The fee schedule charges a re-inspection fee of $125.

    failure to call for an inspection fee: 125 USD

    “pending approval to proceed, contingent upon passing a building inspection and a cross connection control survey”
  • Local zoningPresent (with conditions)

    Land inside Lannon village limits: the village administers zoning permits under its own zoning fee schedule

    • The village zoning ordinance text (the 'zoning district ordinances' listed on the village municipal ordinances page) was not opened; district-level standards are not established by this claim.
    • Zoning permit fee lines appear in the village fee schedule effective 1-1-2024.
    “zoning permits cover the verification of street setback, side yard offsets, rear yard setbacks, building height, use, and size of signs and buildings.”
  • Mandatory utility hookupConditional

    New or existing homes inside Lannon village limits: water connection is voluntary except where a private well fails and a village water main is in the public right-of-way; sanitary sewer is village-wide since 1997

    • A general mandatory sewer-connection rule was not found; the sewer statement reports village-wide implementation only.
    • Connection duty applies to failing private wells, not to new construction generally.
    “to date, lannon has made connections to the water system as voluntary with one exception: if an existing private well fails and village water main is available at the public right-of-way, then the property owner must connect to the water system instead of repairing the well.”
  • Permit feesPublished (with conditions)

    Building, zoning and miscellaneous permit fees for work inside Lannon village limits

    • Schedule is effective 1-1-2024; a newer schedule may exist and was not checked.
    • A 20% administrative fee is added to all permits.
    • Triple fee applies if work starts before permit issuance; all permit fees are non-refundable.
    • New home plan review is $230 and re-inspection fee is $125.

    minimum permit fee, residential: 150 USD (commercial minimum $300)

    “1. minimum permit fee: residential $150 / commercial $300”

Rules another office applies inside Village of Lannon

Village of Lannon does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Septic permitRequired

    Installation of a private on-site sewage system on a parcel inside Lannon village limits

    • Applies only if a private sewage system is installed; the village reports village-wide sanitary sewer service since 1997.
    • Permit issued by Waukesha County Environmental Health, not the village.
    “a sanitary permit is required for the installation of any initial, modified, additional or replacement private sewage system servicing a public or private building.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder permit exemption for homes inside Lannon village limits
  • Building code adopted — Building code governing one- and two-family dwellings inside Lannon village limits
  • Zoning districts — Zoning district list and map for land inside Lannon village limits
  • Minimum dwelling size — Minimum dwelling size for a new home inside Lannon village limits
  • Minimum lot size — Minimum lot size in Lannon village single-family residential districts
16 more unanswered
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic inspection
  • Off-grid sanitation
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit process

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 Lannon publishes no rule on the point, not that none exists. Waukesha County’s page lists the county offices to call.

Off-grid gear

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

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