Bolthole Index

Utah County, Utah

Building permits, zoning and land rules in American Fork, Utah

American Fork, Utah requires city building permits for regulated construction and building-system work.1 American Fork administers its own zoning; Utah County Health Department handles countywide onsite wastewater review and permits.23 A building under 200 square feet may be exempt from a building permit, but must still meet city setbacks and zoning requirements.1

At a glance

Building permits
Required for code-regulated work; buildings under 200 square feet still must meet zoning rules1
Zoning
City zoning applies inside American Fork2
Septic
Utah County Health Department administers onsite wastewater review3
Plan-review deposit
$1,000 for new residential plans4
Accessory apartment
Conditional in single-family residential zones; owner occupancy required5
Owner-builder
State contractor-license exemption is conditional; city owner-builder form required6
Floodplain
City floodplain development permit required before work7

Who to call

Building permits

American Fork Building Department

City building permits and inspections

801-763-3060

275 East 200 North American Fork, UT 84003

Online permits →

Zoning

American Fork Planning Department

City zoning and development review

801-763-3060

275 E 200 N American Fork, UT 84003

Septic permits

Utah County Health Department - Environmental Health

Onsite wastewater review and permits for Utah County

(801) 851-7525

Health and Justice Building 151 S University Ave Suite 2600 Provo, Utah 84601

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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Do you need a building permit in American Fork, UT?

American Fork requires a building permit before code-regulated construction, enlargement, alteration, repair, demolition or occupancy changes, including regulated electrical, gas, mechanical and plumbing work.8 The City states that buildings under 200 square feet do not require a building permit, but must comply with setbacks and municipal-code requirements for the zone.1 That exemption does not establish permission to use a small structure as a dwelling; ask the Planning Department about the proposed residential use before choosing a design.2

American Fork bases building-permit fees on construction valuation and project square footage, with a $1,000 plan-review deposit for new residential plans and additional fixed new-residential fees.4 Ask the Building Department for the full project estimate before setting your construction budget.6

Who issues building permits in American Fork, and how do you apply?

The American Fork Building Department enforces building-code requirements inside the City and can be reached at 801-763-3060.6 Use the City building department for an address inside American Fork; Utah County Community Development serves unincorporated land outside city limits.69 For property outside the City, see the Utah County guide.9

Many American Fork projects need Planning and Zoning clearance before the building-permit application; the City directs applicants to obtain the zoning clearance letter before proceeding to the building-permit process when that clearance is required.6 The City accepts building-project submissions through its online portal and rejects incomplete submittals, so prepare the application, plans and construction documents before submitting.6

Does American Fork have zoning, and what about RVs and tiny homes?

American Fork has city zoning, and the Planning Department is the starting point for parcel-specific land-use questions.2 We could not confirm American Fork rules for RV occupancy, temporary camping, tiny-home occupancy, minimum dwelling size or district-specific lot size and setbacks; ask the Planning Department to identify the district and confirm each proposed use before buying.10

American Fork conditionally allows an accessory apartment in a single-family home in single-family residential zones, with owner occupancy of either the main dwelling or apartment and additional off-street parking requirements.5 An accessory apartment cannot be sold separately or detached by deed.5 The accessory-apartment provision also prohibits renting any portion or room of the covered main dwelling or apartment more than once in a 30-day period.11 These apartment provisions do not establish a right to occupy an RV or a separate tiny home; ask Planning to classify the specific proposal.10

How do septic permits work inside American Fork?

Utah County Health Department administers onsite wastewater permitting and review within Utah County, including applications for new systems, existing-system review and septic tank abandonment.3 The countywide system-permit and plan-review fee is $1,800, including the current state fee; alternative systems and repairs have separate entries and requirements.12 Contact Environmental Health at (801) 851-7525 about a proposed onsite system in American Fork.13

Utah requires public sewer connection when available and practicable; where sewer is unavailable or impracticable, an adequate onsite or other acceptable wastewater system is required.14 Ask the City about sewer availability and Environmental Health about onsite approval before treating septic as an alternative.613 We could not confirm a city-specific approval for off-grid sanitation; ask both offices about the proposed system.613

Building a home in American Fork: what are the steps?

  1. Ask American Fork Planning to confirm the parcel’s zoning and the proposed residential use.2
  2. Review the City zoning-clearance checklist and obtain a zoning clearance letter when required before starting the building-permit application.6
  3. Prepare complete plans and construction documents, including a scaled site plan, and submit the building project through the City portal.6
  4. Budget for valuation-based building-permit fees and the $1,000 new-residential plan-review deposit.4
  5. Obtain the required building permit before regulated work begins; ask the Building Department to identify the inspections and occupancy approval your project needs.86

For work you perform yourself, American Fork requires an owner-builder form.6 Utah’s owner-builder contractor-license exemption is conditional and does not remove applicable building-permit, inspection or code requirements.15

What should you check before buying land in American Fork?

Check whether the American Fork parcel lies in a designated floodplain: development there requires a City floodplain development permit before work begins.7 Covered floodplain development cannot be used or occupied until final inspection, final elevation and community approval.16 Ask the Building Department to route the floodplain application and identify the project’s other approvals.6

American Fork states that structures may not encroach into a public utility easement, so compare the proposed footprint with easements before committing to plans.6 We could not confirm a general City driveway-access rule; ask the City about the proposed connection.6 A connection to a state highway requires a Utah conditional access permit under the applicable state triggers.17 For a proposed shallow water well, Utah requires a valid groundwater right and a Start Card before construction by the licensed well professional; that rule does not establish the process for every well category.18

Watch-outs

  • A building under 200 square feet still must comply with American Fork setbacks and municipal-code requirements.1
  • We could not confirm permission to live in an RV or tiny home on an American Fork parcel; ask the Planning Department before relying on either as temporary housing.10
  • American Fork’s building page announces a construction-code update effective July 2026; ask the Building Department which codes apply to your submission.6

Sources

  1. American Fork Building Permits: What You Need To Know (American Fork), quoted and re-checked
  2. Planning Department | American Fork, UT - Official Website (American Fork), quoted and re-checked
  3. Annual Permits & Certifications, quoted and re-checked
  4. Building Permit Fees | American Fork, UT - Official Website (American Fork), quoted and re-checked
  5. American Fork, UT Code of Ordinances, § 17.5.134 Accessory apartments (American Fork), quoted and re-checked
  6. American Fork Building Department (americanfork.gov)
  7. Floodplain Development Permit (American Fork), quoted and re-checked
  8. American Fork Building Permits: What You Need To Know (American Fork), quoted and re-checked
  9. Building - Utah County Community Development, quoted and re-checked
  10. American Fork Planning Department (americanfork.gov)
  11. American Fork, UT Code of Ordinances, § 17.5.134 Accessory apartments (American Fork), quoted and re-checked
  12. Fee Schedule 2026, quoted and re-checked
  13. Utah County Health Department - Environmental Health (health.utahcounty.gov)
  14. DAR File No. 37575, Rule R317-4, Onsite Wastewater Systems (Utah statewide rule), quoted and re-checked
  15. Utah Code Title 58, Chapter 55, Construction Trades Licensing Act exemptions (Utah statewide rule), quoted and re-checked
  16. Floodplain Development Permit (American Fork), quoted and re-checked
  17. Conditional Access Permit (Utah statewide rule), quoted and re-checked
  18. Water Well Drilling Information (Utah statewide rule), quoted and re-checked

Written October 11, 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 American Fork

American Fork’s own rules

  • Building permitRequired

    Regulated construction, alteration, repair, demolition, occupancy change, and regulated electrical, gas, mechanical, or plumbing work inside American Fork city limits.

    • The work must be regulated by the code.
    • Buildings less than 200 square feet do not require a permit but must comply with setback and municipal-code requirements for the zone.

    building size exemption threshold: < 200 square feet (The City states that buildings less than 200 square feet do not require a permit but must comply with setback and municipal-code requirements.)

    “Buildings less than 200 square feet do not require a permit but will need to comply with set back and municipal code requirements for your zone.”
  • InspectionsLimited

    Development within a designated floodplain inside American Fork city limits.

    • Development may not be used or occupied until it has received final inspection, a final elevation, and community approval.
    • The permit may be revoked for false statements, a revised effective Flood Insurance Rate Map, nonconforming work, or work different from that submitted.
    • The applicant consents to reasonable inspections by the local Floodplain Administrator and representatives.
    “Development shall not be used or occupied until the project has received final inspection, a final elevation and approval by the community.”
  • Local zoningPresent (with conditions)

    Land inside American Fork city limits.

    • The Planning Department identifies a City zoning map, land-use map, and municipal-code explanations.
    “The American Fork Planning Department oversees the future physical development of the City by coordinating efforts with residents, City departments, and potential developers to result in a sustained community that is both desirable as a living environment for its citizens and economically viable.”
  • Accessory dwellingsLimited

    Accessory apartments in single-family residential zones inside American Fork city limits.

    • A maximum of one accessory apartment may be allowed in a single-family home within all single-family residential zones.
    • No accessory apartment may be allowed in a multifamily dwelling or on a lot or parcel that cannot satisfy parking requirements.
    • The owner must occupy either the main dwelling or the accessory apartment.
    • Two additional off-street parking spaces are required; no parking spaces may be in a front or side yard except within an approved driveway, and tandem driveway parking is allowed.
    • Construction and remodeling must comply with building codes and ordinance requirements in effect at the time of work.
    • The apartment may not be intended for sale or detached by deed and may only be rented.
    • No portion or room of a main dwelling or accessory apartment may be rented more than one time in a thirty-day period.

    maximum accessory apartments: <= 1 apartment per single-family home (Only in all single-family residential zones and subject to stated conditions.)

    “Accessory apartments are permitted within the city subject to compliance with the conditions and criteria hereinafter set forth.”
  • Building in a floodplainRequired

    Any development within a designated floodplain inside American Fork city limits.

    • No work may start until the permit is issued.
    • The permit becomes void if effective Flood Insurance Rate Maps change.
    • The permit expires if no work starts within three months of issuance and by the stated expiration date.
    • Other local, state, and federal permits may be required.
    • Development must receive final inspection, final elevation, and community approval before use or occupancy.

    work commencement period: <= 3 months (Permit expires if no work has commenced within three months of issuance and by the expiration date noted on the permit.)

    “Any party undertaking development within a designated floodplain must obtain a floodplain development permit prior to the work commencing.”
  • Short-term rentalsProhibited

    A main dwelling or accessory apartment subject to American Fork City Code § 17.5.134 inside American Fork city limits.

    • This claim is limited to the accessory-apartment provision and does not establish the rule for every other dwelling type.
    • The ordinance permits rental only where no portion or room is rented more than one time in any thirty-day period.

    permitted rental frequency: <= 1 rental per 30-day period (Applies to any portion or room of a main dwelling or accessory apartment under § 17.5.134.)

    “Short term rental prohibited. No portion or room of a main dwelling or accessory apartment shall be rented more than one time in any thirty-day period.”
  • Permit feesPublished (with conditions)

    Building permits and new single-family residential permits inside American Fork city limits.

    • Fees are based on construction valuation using the City's table and project square footage.
    • A $1,000 plan-review deposit is charged for all new residential plan submissions.
    • Other permits have a valuation-based plan-review fee with a $50 minimum.
    • A state fee of 1% of the building-permit fee is charged and sent to the state.
    • Permit, development, and impact-fee payments over $300 have a 3% credit-card processing fee.
    • Fixed new-residential fees are charged in addition to the building-permit fee.

    new residential plan review deposit: 1000 USD (Payable upon submission of construction plans to the Building Department for review.) · other permit plan review minimum: >= 50 USD (Plan-review fee is otherwise based on valuation.) · state building permit fee: 1 percent (Charged and sent to the state.)

    “The permit fees are based on the cost (valuation) of the construction. American Fork City utilizes a table (PDF) to figure these fees based on the square footage and subsequent valuation of the project. A plan review deposit fee of $1,000 is charged for all new residential plan submissions.”

Rules another office applies inside American Fork

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

  • Building code adoptedAdopted (with conditions)

    State-adopted building-code requirements as described by American Fork City for construction inside American Fork city limits.

    • The quoted requirement applies to work regulated by the code.
    “The State of Utah adopted building codes state, “Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit.””

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask American Fork or Utah County directly.

  • Owner-builder exemption — Owner-built residential construction inside American Fork city limits.
  • Certificate of occupancy — New residential construction and occupancy inside American Fork city limits.
  • Minimum dwelling size — Single-family residential districts inside American Fork city limits.
  • Minimum lot size — Single-family residential districts inside American Fork city limits.
  • Setbacks — Single-family residential districts inside American Fork city limits.
14 more unanswered
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access

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

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