Bolthole Index

Cache County, Utah

Zoning, building permits and septic rules in Town of Trenton, Utah

Town of Trenton is a town in Cache County, Utah. Town of Trenton adopts its own zoning, so inside its limits Town of Trenton’s rules apply, not the county’s. 5 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Cache County page.

Answers from the rulebook for Town of Trenton

Town of Trenton’s own rules

  • Local zoningPresent (with conditions)

    Land inside Trenton town limits

    • Zoning clearance application is reviewed by the Planning and Zoning Commission and approved by the mayor
    • Clearance is void six months after approval unless substantial work has been accomplished
    • Clearance does not waive compliance with building codes as required by Cache County

    zoning clearance application fee: 50 USD

    “this permit is not a waiver of compliance with the trenton town zoning ordinances or building codes as required by cache county.”
  • Zoning districtsPartial

    Zoning districts inside Trenton town limits: R1, CN, GC, RA

    • Districts are named on the application form; a zoning map is linked from the town page; the ordinance text with district standards was not found

    districts: residential single family (R1), commercial neighborhood (CN), general commercial (GC), residential agriculture (RA)

    “residential agriculture (ra) - all other lands within legal town limits not mentioned above.”
  • Subdividing landRegulated (with conditions)

    Subdivisions, lot splits and minor subdivisions inside Trenton town

    • Concept plan, preliminary application and minor subdivision stages carry separate fees

    minor subdivision fee: $300.00 + $250.00 per lot and all expenses USD

    “minor subdivision $300.00 + $250.00 per lot and all expenses incurred while processing the application”
  • Permit feesPublished (with conditions)

    Planning and zoning fees in Trenton town

    • Building permit fees not found

    annexation request: 500 USD · lot split: 25 USD · appeals authority application: 65 USD

    “annexation request $ 500.00 subdivisions concept plan discussion $50.00 lot split $25.00”
  • Permit processPartial

    Zoning clearance and planning applications inside Trenton town

    • Applications due at least one week before the monthly meeting (third Tuesday, 7 pm)
    • Approved clearances are passed to the building inspector; building permit process itself not found
    “to be considered for the agenda, all applications must be turned in at least 1 week before the meeting.”

Still unanswered

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

  • Building permit — Building permits inside Trenton town
  • Owner-builder exemption — Owner-builder exemption inside Trenton town
  • Building code adopted — Building code inside Trenton town
  • Inspections — Building inspection inside Trenton town
  • Certificate of occupancy — Certificate of occupancy inside Trenton town
19 more unanswered
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • 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 Trenton publishes no rule on the point, not that none exists. Cache County’s page lists the county offices to call.

← All of Cache County: county rules, score and offices