Bolthole Index

Jefferson County, Idaho

Building permits, zoning and land rules in Rigby, Idaho

Rigby, Idaho requires building permits for construction, remodels and additions inside city limits; start with City Planning & Zoning.1 Rigby has city zoning, and occupied premises must connect to public sanitary sewer, with connection potentially negotiable beyond 300 feet.23 Eastern Idaho Public Health handles septic questions for Jefferson County, where Rigby is located.45

At a glance

Building permits
Required for construction, remodels and additions inside Rigby city limits1
Zoning
City zoning districts and zoning map apply2
Sewer connection
Occupied premises must connect; connection may be negotiable beyond 300 feet3
Septic permits
Eastern Idaho Public Health administers septic rules; first resolve city sewer requirements463
Owner-builder
Conditional state contractor-registration exemption; applicable permits still required7
Wells
IDWR drilling permit and licensed well driller required8

Who to call

Building permits

City of Rigby Planning & Zoning

City building permit applications and zoning questions; ask the city to coordinate any county building services.

(208) 745-8111, Ext 119

158 West Fremont Avenue Rigby, ID 83442

Septic permits

Eastern Idaho Public Health — Jefferson County Office

Local district contact for septic and land-development questions; city sewer connection decisions remain with Rigby.

(208) 745-7297

380 Community Lane Rigby, ID 83442

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

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

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Do you need a building permit in Rigby, ID?

Rigby requires a building permit for all construction, remodels and additions within city limits.1 Rigby has adopted building codes that provide for permit issuance and fees.9 Start a new-home or renovation application with City Planning & Zoning, and ask for the inspection schedule and occupancy requirements for the proposed work.1 Idaho also requires electrical, plumbing and HVAC permits for work covered by the state-administered program; local administration varies by location.10

Who handles building permit applications in Rigby?

City Planning & Zoning is the application contact listed on Rigby’s building department page, at City Hall on West Fremont Avenue.1 Call (208) 745-8111, Ext 119 to discuss the appropriate application and next steps.1 Rigby’s building page provides zoning, deck, fence, garage/shed, sidewalk/curb/approach, sign and solar application links.1 Ask the city which building inspections or permit processing involve Jefferson County before submitting elsewhere. Rigby’s code publishes building and inspection fee provisions, but zoning fees can be modified by council resolution; request a current project-specific estimate rather than treating the code as a fixed quote.11

Does Rigby have zoning, and can you live in an RV or tiny home?

Rigby has zoning districts and a city zoning map; the city’s zoning applies to property inside city limits.2 Rigby’s building department states that buildings and land may be used only for purposes permitted in the applicable district.1 Before buying, ask City Planning & Zoning to identify the parcel’s district and confirm the proposed use, setbacks, lot size and minimum dwelling size. We could not confirm Rigby’s rules for living in an RV, temporary camping, tiny homes or accessory dwellings; ask City Planning & Zoning for a written answer covering both the intended use and any stay while building.

How do sewer connections and septic permits work in Rigby?

Rigby requires occupied or occupancy-improved premises to connect to public sanitary sewer within 60 days after official notice, at the owner’s expense.3 If the parcel is not within 300 feet of a sewer, connection may be negotiable; that provision does not itself approve a septic system.3 Apply for a city sewer connection through the Public Works Director or designated agent before connecting to a sewer main.12 For a proposed septic alternative, contact Eastern Idaho Public Health after discussing sewer requirements with the city.43 Idaho generally requires an installation permit for septic installation, modification, repair or expansion, subject to specified exceptions, and a final installation inspection before receiving wastewater.613

What are the steps to building a home in Rigby?

First, ask City Planning & Zoning to confirm the zoning district and whether the proposed home and accessory uses are permitted.21 Next, resolve sewer connection requirements with city Public Works and apply for the sewer connection permit.312 Then select the building application with City Planning & Zoning and request the current fee estimate, inspection sequence and occupancy requirements.111 If doing the work yourself, Idaho exempts owners working on their own land from contractor registration when they do not intend to sell within 12 months, but applicable building and trade permits still apply.7

What should you check before buying land in Rigby?

For land outside Rigby city limits, use the Jefferson County guide for the county’s unincorporated-area zoning answer.14 Inside Rigby, ask City Planning & Zoning about any proposed lot division: Rigby’s code regulates subdivisions, so a building application is not the whole approval question.15 If a well is proposed, Idaho requires an IDWR drilling permit before drilling and an IDWR-licensed driller; the domestic water-right exemption does not remove that drilling requirement.8 We could not confirm Rigby’s floodplain development or driveway-access requirements; ask City Planning & Zoning to identify the responsible office for the parcel. A driveway connecting to state highway right-of-way requires Idaho Transportation Department approval.16

Watch-outs

  • Rigby’s possible sewer-connection negotiation beyond 300 feet is not blanket permission for off-grid sanitation; discuss the parcel with Public Works and Eastern Idaho Public Health.34
  • We could not confirm residential RV or tiny-home occupancy rules in Rigby; ask City Planning & Zoning before relying on either as housing.1
  • An Idaho owner-builder contractor-registration exemption does not waive applicable building or trade permits.7

Sources

  1. City of Rigby Planning & Zoning (cityofrigby.gov)
  2. Chapter 4 Establishment of Zones (Rigby), quoted and re-checked
  3. 8-2-2: Connection To Sanitary Sewer Required (Rigby), quoted and re-checked
  4. Eastern Idaho Public Health — Septic (2026 county census)
  5. Eastern Idaho Public Health — Jefferson County Office (eiph.id.gov)
  6. IDAPA 58.01.03 – Individual/Subsurface Sewage Disposal Rules and Rules for Cleaning of Septic Tanks (Idaho statewide rule), quoted and re-checked
  7. Frequently Asked Questions (FAQ) - Division of Occupational and Professional Licenses (Idaho statewide rule), quoted and re-checked
  8. Wells Overview (Idaho statewide rule), quoted and re-checked
  9. 9-1-1: Building Codes (Rigby), quoted and re-checked
  10. Frequently Asked Questions (FAQs) - Division of Occupational and Professional Licenses (Idaho statewide rule), quoted and re-checked
  11. 9-1-1: Building Codes (Rigby), quoted and re-checked
  12. 8-2-17: Permits Required (Rigby), quoted and re-checked
  13. IDAPA 58.01.03 Individual/Subsurface Sewage Disposal Rules (Idaho statewide rule), quoted and re-checked
  14. Part III Land Development Ordinances (2026 county census)
  15. Chapter 1 Jurisdiction And General Provisions (Rigby), quoted and re-checked
  16. Types of Right-of-Way Encroachment Permits (Idaho statewide rule), quoted and re-checked

Written October 12, 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 Rigby

Rigby’s own rules

  • Building code adoptedAdopted

    Building construction and structures inside Rigby city limits.

    • The adopted code includes current Idaho State Editions of the listed International codes, the NFPA 70 National Electrical Code as required by Idaho, and the Idaho Plumbing Code as required by Idaho.
    • The ordinance states that the adopted code provides for issuance of permits and collection of fees.
    “are hereby adopted as the building code of the City of Rigby, in the State of Idaho for regulating and governing the conditions and maintenance of all property, buildings and structures”
  • Zoning districtsPublished

    Zoning districts and zoning-map administration inside Rigby city limits.

    • The reviewed code identifies zones and a zoning map, but district-specific dimensional values were not extracted.
    “In order to accomplish more fully the objectives and purposes of this title, Rigby, Idaho, is hereby divided into zones which shall be known by the symbols and names as follows:”
  • Mandatory utility hookupSewer (with conditions)

    Every occupied or occupancy-improved parcel inside Rigby city limits.

    • Connection is required within 60 days after official notice.
    • The owner bears connection costs.
    • Connections must conform to city requirements, and work in the public right-of-way must be performed by a licensed public works contractor.
    • The City may require video inspection.
    • If the parcel is not within 300 feet of a sewer, connection may be negotiable.

    connection deadline after official notice: 60 days · distance from sewer: < 300 feet (If a parcel is not within 300 feet of a sewer, connection may be negotiable.)

    “Every parcel of land or premises within the boundaries of the City, improved for occupancy and occupied or used by any person or persons, or as commercial business, shall be connected to the public sanitary sewer system. The owner or person in charge of such land shall make or cause to be made, such connection within sixty (60) days after receiving official notice from the City to so connect.”
  • Subdividing landRegulated (with conditions)

    Subdivision activity inside Rigby city limits.

    • The code contains Title 11 subdivision regulations and a chapter on jurisdiction and general provisions; specific application thresholds and approval procedures were not extracted.
    “No person shall subdivide any tract of land which is located wholly or in part in the City, or within one mile of the corporate limits of the City or such additional distance as may mutually be agreed upon by both the City and County of Jefferson pursuant to Idaho Code sections 50-1306 and 67-6526, unless he shall first have or cause to have made a plat thereof as set forth within this Title.”
  • Permit feesPublished (with conditions)

    Building, inspection, and zoning-related fees inside Rigby city limits.

    • Building permit and inspection fees not otherwise identified are collected at building permit issuance under Table 1A of the 1997 Uniform Building Code.
    • Mechanical and plumbing fee schedules are tied to Idaho statutes and may be modified.
    • Zoning hearing-related applications have a $500 fee and staff review/inspection time is charged at $60 per hour; the zoning fee may be modified by council resolution.

    zoning hearing-related application fee: 500 USD (Effective October 1, 2002; may be modified by council resolution.) · planning and zoning staff review and inspection time: 60 USD/hour

    “Review and inspection time required by staff for Planning and Zoning requests shall be charged at sixty dollars ($60.00) per hour.”
  • Permit processPartial

    Sanitary sewer connections inside Rigby city limits.

    • A connection application is made at the Public Works Director's office or designated agent.
    • No connection may be made to a sewer main without a valid permit issued by the Public Works Director or designated agent.
    “An application for a connection to the City sewer system shall be made at the office of the Public Works Director or his designated agent and no connection shall be made to any sewer main without a valid permit therefor having been issued by the Public Works Director or his designated agent.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Rigby or Jefferson County directly.

  • Building permit — New residential construction inside Rigby city limits.
  • Owner-builder exemption — Owner-builders inside Rigby city limits.
  • Inspections — Building inspections inside Rigby city limits.
  • Certificate of occupancy — Certificates of occupancy inside Rigby city limits.
  • Minimum dwelling size — Residential districts inside Rigby city limits.
18 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • 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
  • 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 Rigby publishes no rule on the point, not that none exists. Jefferson County’s page lists the county offices to call.

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