Bolthole Index

Bear Lake County, Idaho

Building permits, zoning and septic rules in Montpelier, Idaho

Montpelier, Idaho requires building permits for structures erected, moved, added to or structurally altered inside city limits.1 The Bear Lake County Building Official manages Montpelier building permits, while City Hall is the contact for city zoning questions.23 Southeastern Idaho Public Health handles septic permitting in Bear Lake County, including Montpelier properties needing onsite sewage disposal.4

At a glance

Building permits
Required; managed by the Bear Lake County Building Official12
Zoning
City zoning applies inside Montpelier5
Septic permits
Southeastern Idaho Public Health; sewer accessibility matters46
Agricultural buildings
Qualifying buildings exempt from building permits; city zoning placement still applies7
Manufactured homes
Installation permit required before placement; HUD certification conditions apply8
Minimum lot area
A District: 2 acres per dwelling; R-2: 20,000 square feet per dwelling910

Who to call

Building permits

Bear Lake County Building Official — Montpelier building permits

Manages building permits inside Montpelier under city requirements

208-945-2155 ext. 1428

[email protected]

Zoning

Montpelier City Hall — Planning and Zoning

Contact for Montpelier zoning and land-use questions

208-847-0824

Septic permits

Southeastern Idaho Public Health — Bear Lake County

Local contact for onsite sewage permitting and environmental health

(208) 847-3000

431 Clay St Montpelier, Idaho 83254

Septic permits

Southeastern Idaho Public Health Septic Permits

Septic applications and site evaluations

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 Montpelier means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Montpelier, Idaho?

Montpelier requires a building permit for structures being erected, moved, added to or structurally altered, with compliance tied to the zoning district and city policy.1 Montpelier has adopted the 2018 International Building Code and referenced residential, energy, mechanical and fuel-gas codes, subject to amendments.11 Qualifying agricultural buildings are exempt from Montpelier building permits but still must meet city zoning placement requirements.7 Building permit fees are set by city resolution; ask the building official for the current fee calculation for your project.12

Who manages Montpelier building permits and zoning questions?

The Bear Lake County Building Official manages building permits for the City of Montpelier; the municipal Community Development page lists 208-945-2155 ext. 1428 and [email protected].2 For Montpelier planning and zoning questions, contact City Hall at 208-847-0824.3 Montpelier also requires fence permits for fences being built, altered or replaced, and directs fence-permit questions to City Hall.2 Septic permitting follows a separate route through Southeastern Idaho Public Health; the local Bear Lake County office is in Montpelier.413

Does Montpelier have zoning, lot-size rules and setbacks?

Montpelier has its own zoning ordinance for land inside city limits.5 In Montpelier’s Agricultural (A) District, minimum lot area is 2 acres per dwelling unit; in the Low Density Residential (R-2) District, minimum lot area is 20,000 square feet per dwelling unit.910 In the A District, the front setback is 60 feet from road centerline, the rear setback is 30 feet, the interior-side setback is 10 feet, and the street-side setback is 45 feet from road centerline, subject to table notes.14 Ask City Hall to identify the parcel’s zoning district before choosing a home footprint.3

How do septic permits work inside Montpelier?

Montpelier requires a septic permit for a facility needing pressurized water that lacks access to the sewer system, subject to the city zoning regulations.15 Idaho allows denial of a septic permit when public or central wastewater treatment facilities are reasonably accessible, so confirm the sewer option before budgeting for onsite disposal.6 Southeastern Idaho Public Health requires a signed application, a scaled plot plan, a deed or tax notice, the applicable fee and an onsite evaluation for Bear Lake County septic applications.4 The applicant provides test holes; SIPH specifies depths of 8–10 feet depending on soil type.4 SIPH lists both $925 for site evaluation and a permit if suitable and $850 for a basic or complex disposal permit without explaining their relationship; confirm the current charge with the district.4

Can you live in an RV, tiny home or manufactured home in Montpelier?

We could not confirm Montpelier’s rules for living in an RV, temporary camping, tiny-home occupancy or a minimum dwelling floor area; ask City Hall about your proposed use and parcel before buying a unit.3 Montpelier does allow HUD-certified manufactured homes subject to its conditions, including obtaining an installation permit before placement and meeting building-code requirements for additions and alterations.8 Idaho requires manufactured-home installations to be inspected and approved by DOPL or the authority having jurisdiction before occupancy.16 A manufactured-home approval does not establish an answer for an RV or tiny home; ask City Hall to classify the proposed dwelling.83

Building a home in Montpelier: what are the steps, in order?

  1. Ask Montpelier City Hall to confirm the parcel’s zoning district and proposed residential use; lot-area requirements differ by district.3910
  2. Establish whether sewer is accessible; if onsite sewage disposal is needed, contact Southeastern Idaho Public Health about the septic application and site evaluation.154
  3. Contact the Bear Lake County Building Official about the Montpelier building permit and the current city fee resolution.212
  4. Arrange required electrical, plumbing and HVAC permits through the applicable Idaho or local program.17
  5. Ask the building official which inspections and occupancy approvals your Montpelier project needs; we could not confirm the city’s specific requirements.2

What should you check before buying land in Montpelier?

For land outside Montpelier city limits, consult the Bear Lake County guide: the county’s zoning ordinance applies to unincorporated areas.18 For a subdivision inside Montpelier, the Commission must act on the final plat and the Council must approve it before filing with the County Recorder; lots cannot be sold until the plat is recorded.19 A proposed well requires an Idaho Department of Water Resources drilling permit and a licensed well driller.20 For a driveway approach onto a state highway, an Idaho Transportation Department encroachment permit is required before activity in the state highway right-of-way.21 Ask City Hall about floodplain restrictions and local driveway approval for the particular parcel; we could not confirm those city requirements.3

Watch-outs

  • Montpelier’s agricultural-building exemption does not waive city zoning placement requirements.7
  • We could not confirm RV living, tiny-home occupancy or accessory-dwelling permission in Montpelier; ask City Hall before committing to that use.3
  • SIPH’s published septic fees conflict on the relationship between site evaluation and the disposal permit; confirm the total with the district before paying.4

Sources

  1. § 153.021 District Regulations and Matrix (Montpelier), quoted and re-checked
  2. Bear Lake County Building Official — Montpelier building permits (montpelier.id.gov)
  3. Montpelier City Hall — Planning and Zoning (montpelier.id.gov)
  4. Septic Permits, quoted and re-checked
  5. codelibrary.amlegal.com (Montpelier), quoted and re-checked
  6. IDAPA 58.01.03 Individual/Subsurface Sewage Disposal Rules (Idaho statewide rule), quoted and re-checked
  7. § 150.04 Exemptions (Montpelier), quoted and re-checked
  8. § 150.03 Installation of Manufactured Homes (Montpelier), quoted and re-checked
  9. § 153.022 Official Height and Area Regulations (Montpelier), quoted and re-checked
  10. § 153.022 Official Height and Area Regulations (Montpelier), quoted and re-checked
  11. § 150.01 Building Codes Adopted (Montpelier), quoted and re-checked
  12. § 153.021 District Regulations and Matrix (Montpelier), quoted and re-checked
  13. Southeastern Idaho Public Health — Bear Lake County (siphidaho.org)
  14. § 153.022 Official Height and Area Regulations (Montpelier), quoted and re-checked
  15. § 153.021 District Regulations and Matrix (Montpelier), quoted and re-checked
  16. Building Archives - Division of Occupational and Professional Licenses (Idaho statewide rule), quoted and re-checked
  17. Frequently Asked Questions (FAQs) - Division of Occupational and Professional Licenses (Idaho statewide rule), quoted and re-checked
  18. Bear Lake County Land Use Ordinances, quoted and re-checked
  19. § 152.025 Subdivision Required (Montpelier), quoted and re-checked
  20. Wells Overview (Idaho statewide rule), quoted and re-checked
  21. 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 Montpelier

Montpelier’s own rules

  • Building permitRequired

    Structures erected, moved, added to, or structurally altered inside Montpelier city limits.

    • Accessory buildings, patios, decks, and other structures associated with a single-family dwelling may be combined in the original permit if construction begins within 180 days after approval.
    • Agricultural buildings defined by 2018 IBC § 202 are exempt from building permits but remain subject to city zoning placement requirements.
    “Building permits shall be required for all structures being erected, moved, added to or structurally altered and shall be in accordance with city policy, setback requirements and permit fees adopted by city resolution at any given time and shall be in conformity with all of the regulations herein specified for the district in which it is located.”
  • Building code adoptedAdopted

    Buildings and structures inside Montpelier city limits.

    • The adopted codes are subject to city subchapter deletions, modifications, and amendments.

    building code edition: 2018 International Building Code (with referenced 2018 IRC, IECC, IMC, and IFGC and amendments)

    “The 2018 edition of the International Building Code (IBC), promulgated by the International Code Council, and amendments adopted under these rules together with standards incorporated into the IBC by reference, including but not limited to, the 2018 edition of the International Residential Code (IRC) and the 2018 edition of the International Energy Conservation Code (IECC), with amendments for the residential portion, and the 2018 edition of the International Mechanical Code (IMC) and the 2018 edition of the International Fuel Gas Code (IFGC), as promulgated by the International Code Council, save and except such portions of the above mentioned codes as are deleted, modified or amended by the provisions of this subchapter.”
  • Local zoningPresent

    Land inside Montpelier city limits.

    “This chapter shall be known as the zoning ordinance of the city.”
  • Manufactured homesAllowed (with conditions)

    HUD-certified manufactured homes placed on property inside Montpelier city limits.

    • An installation permit must be obtained before placement.
    • Additions and alterations must comply with building-code requirements.
    • Homes without HUD certification labels are not allowed except as provided by Idaho Code Title 44, Chapter 25.
    “The owner, or an agent of the owner, must apply for and receive an installation permit prior to placing any manufactured home on his, her or their property.”
  • Septic permitRequired

    Facilities inside Montpelier city limits requiring pressurized water and lacking access to the sewer system.

    • The municipal zoning provision states the requirement is subject to regulations in the zoning chapter.
    “A septic permit shall be required, subject to the regulations herein, for any facility requiring pressurized water that does not have access to the sewer system.”
  • Agricultural exemptionAvailable (with conditions)

    Agricultural buildings inside Montpelier city limits as defined by § 202 of the 2018 International Building Code.

    • The exemption is from building permits adopted in the municipal chapter.
    • Placement requirements under city zoning still apply.
    “Agricultural buildings, as defined by § 202 of the 2018 International Building Code, are exempt from building permits adopted herein but shall remain subject to the placement requirements established by city zoning regulations.”
  • Subdividing landRegulated (with conditions)

    Subdivision creation inside Montpelier city limits.

    • Applications must be submitted to the Commission.
    • The final plat must be acted upon by the Commission and approved by the Council before filing with the County Recorder.
    • Lots may not be sold until the plat is recorded.
    “Any person desiring to create a subdivision as defined in this chapter shall submit all necessary applications to the Commission. No final plat shall be filed with the County Recorder until the plat has been acted upon by the Commission and approved by the Council. No lots shall be sold from any plat until it has been recorded in the office of the County Recorder.”
  • Permit feesVariable (with conditions)

    Municipal building and zoning permits inside Montpelier city limits.

    • Permit fees are determined by city resolution; the opened code did not provide the current resolution or a complete fee schedule.
    “Permit fees and/or violation penalties in addition to state law shall be determined by city resolution.”

Rules another office applies inside Montpelier

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

  • Minimum lot sizeSpecified

    Agricultural (A) District inside Montpelier city limits.

    • The table states minimum lot area per dwelling unit.
    • The A District has a gross residential density of one dwelling unit per two acres.

    minimum lot area per dwelling unit: 2 acres

    “A | 45 feet | 60 feet (from road centerline) | 30 feet | 10 feet | 45 feet (from road centerline | 2 acres”
    One more reviewed finding on this topic
  • SetbacksSpecified

    Agricultural (A) District inside Montpelier city limits.

    • Front setback is measured from road centerline; street-side setback is measured from road centerline.
    • Height and area table notes apply, including possible adjustment where the front of a house would otherwise be out of line with adjacent houses.

    front setback: 60 feet from road centerline · rear setback: 30 feet · interior side setback: 10 feet · street side setback: 45 feet from road centerline

    “A | 45 feet | 60 feet (from road centerline) | 30 feet | 10 feet | 45 feet (from road centerline | 2 acres”
  • Building heightSpecified

    Agricultural (A) District inside Montpelier city limits.

    • Height limitations do not apply to listed roof-level appurtenances not intended for human occupancy, except where aircraft safety is implicated.

    maximum building height: 45 feet (listed appurtenances and aircraft-safety exception)

    “A | 45 feet | 60 feet (from road centerline) | 30 feet | 10 feet | 45 feet (from road centerline | 2 acres”
    One more reviewed finding on this topic

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Montpelier or Bear Lake County directly.

  • Owner-builder exemption — Owner-builder exemptions inside Montpelier city limits.
  • Inspections — Building inspections inside Montpelier city limits.
  • Certificate of occupancy — Certificates of occupancy inside Montpelier city limits.
  • Minimum dwelling size — Minimum dwelling size inside Montpelier city limits.
  • Lot coverage — Lot coverage inside Montpelier city limits.
11 more unanswered
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Who permits septic
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • 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 Montpelier publishes no rule on the point, not that none exists. Bear Lake County’s page lists the county offices to call.

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