Bolthole Index

Pondera County, Montana

Building permits, zoning and land rules in Pondera County, Montana

71Index Score / 100
#11 of 56 in Montana

Unincorporated Pondera County, Montana does not require a building permit for a home with fewer than 5 dwelling units that does not serve transient guests; the county building program covers commercial construction only12. Pondera County has no county zoning; Conrad and the Town of Valier administer their own zoning34. Septic permits countywide remain with the Pondera County Sanitarian, and state electrical trade permits still apply56.

At a glance

Building permit
Not required for an ordinary home in unincorporated areas; the county building program is commercial-only12
Zoning
No county zoning ordinance in unincorporated areas; Conrad and Valier administer their own zoning734
Septic permits
Pondera County Sanitarian, administering septic permitting as part of Montana DEQ programs5
RV parks
A development with 2 or more RV spaces for rent or lease goes through county subdivision review, with a 20-foot separation between RVs8
Tiny homes
No county zoning restriction on tiny-home occupancy in unincorporated areas; sanitation, floodplain and subdivision rules remain9
Owner-builder exemption
Personally installed plumbing in a personal-use residence is exempt from a state plumbing permit; rentals and speculative resale homes do not qualify10
Agricultural land-division exemption
An agricultural land split requires an exclusive-agriculture covenant that excludes residential use until revoked through subdivision review11
Septic soil difficulty
Only 14.9% of county soils are free of severe limits for a conventional drain field12

Who to call

Septic permits

Pondera County Sanitarian

Septic system permitting under Montana DEQ programs, along with water quality, subdivision sanitation review, solid waste, air quality, and inspection of trailer courts and RV parks

(406) 271-4020

sanitarian@ponderacountymt.gov

20 4th Avenue SW, Conrad, Montana 59425-2340

Floodplain permits

Pondera County Disaster & Emergency Services (Floodplain Permits)

Floodplain permits for proposed work in Montana waterways and floodplains, and the county's E-911 addressing system

(406) 271-4040

allison.broesder@ponderacountymt.gov

20 4th Avenue SW, Conrad, Montana 59425-2340

Roads & driveways

Pondera County Road & Bridge Department, Valier Shop

County road maintenance and Encroachment Agreements for access onto county roads, submitted to the Commissioners or Road & Bridge Administrator

(406) 279-3751

frosty.deboo@ponderacountymt.gov

726 Teton Avenue, Valier, Montana 59486

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

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Do you need a building permit in Pondera County, Montana?

An ordinary home in unincorporated Pondera County needs no building permit: Montana exempts residences with fewer than 5 dwelling units that do not serve transient guests, and the county building program covers commercial construction only12. State exemptions also cover farm and ranch buildings and private garages or storage buildings used only by the owner, outside a commercial enterprise1. State electrical trade permits still apply6. A homeowner personally installing plumbing in a personal-use residence needs no state plumbing permit, but rental properties and homes built speculatively for resale do not qualify10. Montana separately exempts qualifying owners working on their property from construction-contractor regulation, subject to a prompt-sale exception; that exemption does not waive building, trade, septic or subdivision approvals13.

Who issues building permits in Pondera County, and what are the fees?

Pondera County’s certified building program requires building permits for covered commercial construction in unincorporated areas; the published building-official contact is 788-33982. We could not confirm the county commercial application, fee schedule or review timeline; ask the certified building official for those details14. For projects requiring a state building permit outside a certified local program, the state charges a valuation-based building fee plus plan review of 35% of the building fee when submittal documents are required; both are payable before issuance, and this is not Pondera County’s commercial fee schedule15. Septic permits countywide come from the Pondera County Sanitarian, (406) 271-4020516. Disaster & Emergency Services handles floodplain permits at (406) 271-404017. Ask Road & Bridge whether a proposed county-road driveway needs an Encroachment Agreement; we could not confirm its driveway applicability18. A new or modified state-highway approach uses Montana Department of Transportation driveway review19.

Does Pondera County have zoning?

Pondera County has no county-administered zoning in unincorporated areas7. Inside municipal limits, Conrad and the Town of Valier administer their own zoning34. Septic permits remain with the Pondera County Sanitarian countywide5. County zoning sets no minimum dwelling size, lot-coverage limit or building-height limit in unincorporated Pondera County202122. For subdivision lot creation where zoning does not set density or lot size, those limits must be established with local and state health authorities; this is not a universal numeric minimum for every existing parcel23. The county may require a 25-foot landscape buffer shown as a setback on a subdivision’s final plat to mitigate health or safety impacts, rather than imposing that setback on every homesite24.

How do septic permits work in Pondera County?

Every new, altered, repaired or extended wastewater treatment and disposal system in Pondera County needs a permit under statewide Montana rules25. The Pondera County Sanitarian administers septic permitting locally as part of Montana Department of Environmental Quality programs5. Soils are the real constraint here: only 14.9% of Pondera County's land is free of severe limitations for a conventional septic drain field, so budget for a site evaluation and the possibility of an alternative system12. If a department-approved public sewer system is readily available within 200 feet of your property line, Montana rule requires connecting to it instead of installing a new onsite system, when the system owner approves connection, unless easements cannot be obtained or connection is physically or economically impractical; economic impracticality means costing at least 3 times an approvable onsite system26. Off-grid alternatives are narrow and conditional: holding tanks are limited to seasonal use of no more than 120 days a year absent a variance, sealed and unsealed pit privies are limited to seasonal or remote use, and new cesspools are prohibited outright2728. Even where a subdivision has a Certificate of Subdivision Approval from Montana DEQ, a separate drainfield permit is still required from the local health department before the septic system goes in2930.

Can you live in an RV or tiny home on your land in Pondera County?

Unincorporated Pondera County has no county zoning restriction on tiny-home occupancy or accessory dwellings, but wastewater and designated flood-hazard-area development still require approval92531. We could not confirm full-time RV living or temporary camping on an ordinary private parcel; ask the Pondera County Sanitarian about sanitation and the County Commissioners about the proposed use before buying3216. County RV-park rules cover developments with 2 or more rental or lease spaces and require subdivision review, not a general right to camp on private land32. RVs, including attached awnings, must be 20 feet apart, 25 feet from a public-road boundary and 15 feet from other park boundaries; parking areas stay 4 feet from the street33. Manufactured-home parks with 2 or more rental or lease spaces also undergo subdivision review: homes stay 25 feet from public-road boundaries, 15 feet from other boundaries and 20 feet apart, with pads 10 feet from the serving street34. These park standards do not establish setbacks for a single home or RV on an ordinary parcel35.

Building a home in Pondera County: the steps, in order

  1. Confirm whether the parcel is unincorporated and take any proposed land division to the county; subdivision review applies, and a new lot's size is set with health-authority input3623.
  1. Order a septic site evaluation early, because only 14.9% of county soils are free of severe limits for a conventional drain field12.
  1. Apply to the Pondera County Sanitarian for a septic permit before installing or changing the wastewater system, and determine whether an available public sewer must be used2526.
  1. Ask Disaster & Emergency Services whether the site is in a designated flood hazard area, where development requires a floodplain permit3117.
  1. Confirm county-road access with Road & Bridge; a state-highway approach needs Montana Department of Transportation review1819.
  1. An ordinary unincorporated home with fewer than 5 dwelling units and no transient guests needs no residential building permit, but state electrical trade permits still apply; a homeowner personally installing plumbing for personal residential use, rather than rental or speculative resale, may use the state plumbing-permit exemption6110.

What to check before you buy land in Pondera County

Water and soils deserve the first look: Pondera County gets about 15.9 inches of precipitation a year, severe drought occurs in roughly 14.9% of years, and only 14.9% of soils are free of severe septic limitations373812. For a qualifying groundwater use of no more than 35 gallons per minute and 10 acre-feet per year, Montana's permit exception still requires a Notice of Intent before water is put to use beginning in 2026; larger groundwater uses require a water permit3940. Inside municipal limits, Conrad and the Town of Valier administer their own zoning34. Septic permitting stays with the Pondera County Sanitarian5. Check flood status before grading or placing a home, because development in a designated Special Flood Hazard Area requires a permit31. If the tract was split recently, verify subdivision approval or an agricultural covenant, which excludes residential use until revoked through subdivision review3611. Typical property tax is about 0.9%, with a median annual bill near $1,5844142.

Watch-outs

  • We could not confirm full-time RV living or temporary camping on an ordinary private parcel in Pondera County; the park rules cover 2 or more rental or lease spaces, so ask the County Commissioners about the use and the Sanitarian about sanitation3216.
  • Pondera County has no county-administered zoning, but subdivision, septic and floodplain rules can still constrain a parcel7362531.
  • State building-permit fees do not establish Pondera County’s commercial fees; confirm the county application, charges and review timing with the certified building official1514.

Sources

  1. Building Permits, quoted and re-checked
  2. Certified City, County and Town Programs, quoted and re-checked
  3. Conrad: 10-1-1: Regulations Adopted by Reference (Pondera County), quoted and re-checked
  4. Town of Valier: 11-1-1: Zoning Law; Map (Pondera County), quoted and re-checked
  5. Sanitarian | Pondera County, Montana, quoted and re-checked
  6. MT DLI — Certified governments (2026 county census)
  7. 2024 Pondera County Growth Policy, quoted and re-checked
  8. Pondera County Subdivision Regulations, quoted and re-checked
  9. Montana law on county zoning and building authority
  10. Plumbing Permits, quoted and re-checked
  11. Pondera County Subdivision Regulations, quoted and re-checked
  12. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  13. Chapter 45 Construction Contractors, quoted and re-checked
  14. Certified City, County and Town Programs, quoted and re-checked
  15. Building Permit Frequently Asked Questions, quoted and re-checked
  16. Pondera County Sanitarian (ponderacountymt.gov)
  17. Pondera County Disaster & Emergency Services (Floodplain Permits) (ponderacountymt.gov)
  18. Pondera County Road & Bridge Department, Valier Shop (ponderacountymt.gov)
  19. Approach Manual for Landowners and Developers (Montana statewide rule), quoted and re-checked
  20. 2024 Pondera County Growth Policy, quoted and re-checked
  21. 2024 Pondera County Growth Policy, quoted and re-checked
  22. 2024 Pondera County Growth Policy, quoted and re-checked
  23. 2024 Pondera County Subdivision Regulations, quoted and re-checked
  24. 2024 Pondera County Subdivision Regulations, quoted and re-checked
  25. 2019 Montana Code Annotated - Land Use and Planning Statutes, quoted and re-checked
  26. leg.mt.gov, quoted and re-checked
  27. 2019 Montana Code Annotated - Land Use and Planning Statutes, quoted and re-checked
  28. 2019 Montana Code Annotated - Land Use and Planning Statutes, quoted and re-checked
  29. Engineering Infrastructure & Subdivisions (Montana statewide rule), quoted and re-checked
  30. Engineering Infrastructure & Subdivisions (Montana statewide rule), quoted and re-checked
  31. Stream Permitting, quoted and re-checked
  32. Pondera County Subdivision Regulations, quoted and re-checked
  33. Pondera County Subdivision Regulations, quoted and re-checked
  34. Pondera County Subdivision Regulations, quoted and re-checked
  35. 2024 Pondera County Subdivision Regulations, quoted and re-checked
  36. 2024 Pondera County Subdivision Regulations, quoted and re-checked
  37. Annual precipitation: Bolthole Index county data
  38. Share of years in severe drought: Bolthole Index county data
  39. Exceptions To Permit Requirements, quoted and re-checked
  40. Exempt Well Updates: Subdivision Review Process and Combined Appropriation Guidance, quoted and re-checked
  41. Effective property tax rate: Bolthole Index county data
  42. Median property tax bill: Bolthole Index county data

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.

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Compared with neighboring counties

Like 5 of its 6 neighbors, Pondera County requires no county building permit for a home.

RulePondera CountyTeton CountyGlacier CountyToole CountyLiberty CountyLewis and Clark CountyFlathead County
Building permitNot requiredNot requiredNot requiredNot requiredLimitedNot requiredNot required
County zoningNoNoYesYesNoYesNo
Septic permitsCounty SanitarianCounty SanitarianCounty SanitarianCounty Env. HealthCounty Health Dept.Lewis & Clark Public HealthFlathead City-County Health Dept.

County locator

Pondera County in Montana

71
County map
Pondera County highlighted among the Montana counties · colored by Index score

How Pondera County scores

Seclusion85100% ev.
Self-Sufficiency33100% ev.
Admin Boringness8590% ev.
Durability50100% ev.
Property Autonomy83100% ev.
Carry Cost82100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$269kTypical home
0.9%Property tax
$1,751Land / acre
15.9"Annual rain
14.9% of yrsSevere drought
1.4 / yr (+1.3)Mid-century 100°F days
22.8 daysMid-century dry spell
1.25" (+5.3%)Mid-century 1-day rain
1.24×Wildfire change factor
100%Forward climate coverage
$1,527Home insurance / yr
4.2% / yrInsurance growth
2.43%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
116,721People within 2 hr
3,875Radius comparison (15 mi)
3.8People / sq mi
12.7%Federal land
83.9%Land at 15% slope or less
14.9%Soils rated "not limited" for septic (strict USDA rating)
152,159 acWorkable land screen
10.7%Wooded land
25.6 tonsBiomass / forest ac
42°FAvg temp

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Cities and towns in Pondera County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Answers from the rulebook for Pondera County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Pondera County rules

  • Building permitLimited

    Commercial building construction within the portion of unincorporated Pondera County covered by the county building-code enforcement program.

    • Pondera County's certified building program is commercial only.
    • The permit requirement applies to buildings subject to Montana Code Annotated Title 50, chapter 60, parts 1 through 4.
    • Conrad city limits are administered separately by the City of Conrad and are not included in this county claim.
    • Construction must comply with the applicable state or county building code and other applicable county ordinances or resolutions.
    “Pondera County | B (commercial only) | Kyle Harlan | 788-3398 | County”
  • Building code adoptedPartial

    Pondera County's certified local building-code program.

    • The Montana Department of Labor and Industry identifies Pondera County's jurisdiction as “County.”
    • The listed code is Building (B) and is limited to commercial construction; the source key defines B as Building.
    • This claim does not establish county adoption of residential building-code enforcement or of plumbing, electrical, mechanical, pool, or WUI codes.
    “Pondera County | B (commercial only) | Kyle Harlan | 788-3398 | County”
  • InspectionsLimited

    Building-code inspection and enforcement administered by Pondera County.

    • The county-certified building program is limited to commercial buildings.
    • The source separately lists Conrad as a city-limits certified building jurisdiction, so incorporated municipal requirements may differ.
    “Pondera County | B (commercial only) | Kyle Harlan | 788-3398 | County”
  • County-wide zoningAbsent

    Pondera County's county-administered zoning regulations, including unincorporated county areas.

    • This finding concerns county zoning regulations; the official Growth Policy separately identifies zoning administered by the City of Conrad and the Town of Valier.
    • County subdivision and floodplain regulations are separate land-use controls and are not county zoning regulations.
    “does not currently have Zoning Regulations”
  • Local zoningVaries (with conditions)

    Aggregate of zoning administered by local governments within Pondera County; it does not state that Pondera County administers municipal zoning.

    • Pondera County does not currently have zoning regulations.
    • The City of Conrad utilizes zoning and requires City approval before work begins for the listed new construction and alterations.
    • The Town of Valier employs a zoning ordinance, but a large portion of the town is not zoned and is primarily airport land.
    “Conrad utilizes zoning [...] Valier also employs a zoning ordinance”
  • Zoning districts · by state lawNot published

    Unincorporated Pondera County: no county rule sets this, because Pondera County's own reviewed answer confirms it has no county-wide zoning ordinance.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • This finding concerns county zoning regulations; the official Growth Policy separately identifies zoning administered by the City of Conrad and the Town of Valier.
    • County subdivision and floodplain regulations are separate land-use controls and are not county zoning regulations.
    “does not currently have Zoning Regulations”
  • Minimum dwelling sizeNone

    Zoning-based minimum dwelling-size requirements in unincorporated Pondera County.

    • This absence applies to county zoning regulations only.
    • The City of Conrad and Town of Valier have separate zoning regulations.
    • Non-zoning requirements, including applicable building, health, floodplain, subdivision, or state rules, may still apply.
    “does not currently have Zoning Regulations”
  • Minimum lot sizeDistrict specific (with conditions)

    Subdivision lot creation in Pondera County where zoning regulations are not in effect establishing maximum densities or minimum lot sizes.

    • The regulation does not state a single countywide numeric minimum lot size.
    • Maximum density and minimum lot size must be established in consultation with local and state health authorities when zoning regulations are not in effect establishing them.
    • The claim applies to subdivision design and development, not necessarily to every existing parcel or building project.
    • All subdivisions approved by the governing body must comply with the design and improvement standards unless a variance is granted under the regulations.
    “minimum lot size must be established in consultation with local and state health authorities.”
    One more reviewed finding on this topic
    • Specified — Subdivision design and development in unincorporated Pondera County where county zoning regulations do not establish maximum density or minimum lot size.
      “The design and development of a subdivision must conform with any applicable zoning or other regulations. Where zoning regulations are not in effect establishing maximum densities or minimum lot sizes, maximum density and minimum lot size must be established in consultation with local and state health authorities.”
  • SetbacksSpecified

    Subdivision developments providing multiple spaces for rent or lease for mobile/manufactured homes or recreational vehicles in Pondera County.

    • The rules apply to subdivisions providing multiple spaces for rent or lease and are subject to the applicable provisions of Section VI.
    • Mobile/manufactured homes must be at least 25 feet from a property boundary abutting a public street or highway right-of-way and at least 15 feet from other park boundary lines.
    • Mobile/manufactured home pads must be at least 10 feet from the street serving the pad.
    • Mobile/manufactured homes and attached structures must be at least 20 feet from other mobile/manufactured homes or attached structures.
    • Detached structures must be at least 5 feet from a mobile/manufactured home or attached structures.
    • Recreational vehicles must be at least 20 feet from each other, at least 25 feet from a property boundary abutting a public street or highway right-of-way, and at least 15 feet from other park boundary lines.
    • RV parking areas must be set back at least 4 feet from the street.
    • The governing body may also require setbacks or landscaping/fencing to mitigate natural hazards within or adjacent to a park.

    mobile/manufactured home setback from public street or highway right-of-way boundary: >= 25 feet · mobile/manufactured home setback from other park boundary lines: >= 15 feet · mobile/manufactured home pad setback from serving street: >= 10 feet · separation between mobile/manufactured homes or attached structures: >= 20 feet · detached structure setback from mobile/manufactured home or attached structures: >= 5 feet · recreational vehicle separation: >= 20 feet · recreational vehicle setback from public street or highway right-of-way boundary: >= 25 feet · recreational vehicle setback from other park boundary lines: >= 15 feet · RV parking area setback from street: >= 4 feet

    “All mobile/manufactured homes must be located at least 25 feet from any property boundary line abutting upon a public street or highway right-of-way and at least 15 feet from other boundary lines of the park. The mobile/manufactured home pad must be located at least 10 feet from the street that serves it. [...] Recreational vehicles must be separated from each other by at least 20 feet. [...] All recreational vehicles must be located at least 25 feet from any property boundary line abutting upon a public street or highway right-of-way and at least 15 feet from other boundary lines of the park. [...] Parking areas must be setback from the street by a minimum of 4 feet.”
    4 more reviewed findings on this topic
    • Specified — Pondera County subdivisions and subdivisions providing multiple recreational-vehicle spaces; not a general countywide setback rule for every building site.
      “at least 25 feet from any property boundary line”
    • Specified — New subdivisions in unincorporated Pondera County where the governing body requires a landscape buffer to mitigate public-health or safety impacts.
      “The governing body may require a landscape buffer to mitigate impacts to public health and safety. If required to mitigate impacts, the applicant shall submit a conceptual landscape plan for a 25-foot buffer. The landscape plan shall contain a combination of berms and/or planting that will provide an effective buffer. The landscaping shall be installed prior to final plat approval. The buffer must be shown as a 25-foot setback on the face of the final plat. A maintenance agreement shall be filed for the maintenance of the landscaping.”
    • Specified — Mobile/manufactured home parks in Pondera County subdivision developments providing two or more spaces for mobile/manufactured homes, subject to the county subdivision regulations.
      “All mobile/manufactured homes must be located at least 25 feet from any property boundary line”
    • Specified — Recreational vehicle parks in Pondera County subdivision developments providing multiple spaces for rent or lease, subject to the county subdivision regulations.
      “Recreational vehicles must be separated from each other by at least 20 feet.”
  • Lot coverageNone

    Zoning-based lot-coverage limits in unincorporated Pondera County.

    • This absence applies to county zoning regulations only.
    • The City of Conrad and Town of Valier have separate zoning regulations.
    • Non-zoning requirements may still regulate development intensity or site design.
    “does not currently have Zoning Regulations”
  • Building heightNone

    Zoning-based building-height limits in unincorporated Pondera County.

    • This absence applies to county zoning regulations only.
    • The City of Conrad and Town of Valier have separate zoning regulations.
    • Applicable building, floodplain, airport, fire, or other non-zoning rules may still impose limits.
    “does not currently have Zoning Regulations”
  • Living in an RVLimited

    Occupancy of recreational vehicles in Pondera County recreational vehicle parks in unincorporated areas.

    • The development must provide two or more spaces for rent or lease for recreational camping vehicles.
    • The development is subject to county subdivision review and the county recreational vehicle park standards.
    • Recreational vehicles must be separated from each other by at least 20 feet.
    • Recreational vehicles must be at least 25 feet from a property boundary adjoining a public street or highway right-of-way and at least 15 feet from other park boundary lines.
    • Each space must provide a parking area at least 9 feet by 18 feet, with parking areas set back at least 4 feet from the street.
    • County, Montana Department of Environmental Quality, and applicable local health-authority requirements also apply.
    • Incorporated municipalities may impose separate rules.

    minimum recreational vehicle spaces triggering review: >= 2 spaces (spaces must be for rent or lease) · separation between recreational vehicles: >= 20 feet (attached awnings and similar attached structures are included) · setback from public street or highway right-of-way boundary: >= 25 feet · setback from other park boundary lines: >= 15 feet · parking area dimensions: 9 by 18 feet · parking setback from street: >= 4 feet

    “separated from each other by at least 20 feet.”
  • Camping on your landLimited

    Temporary camping by recreational vehicles in county-regulated recreational vehicle parks in unincorporated Pondera County.

    • The recreational vehicle park must provide two or more spaces for rent or lease.
    • The park is subject to county subdivision review and design standards.
    • The source does not establish a general right to camp on private land outside a recreational vehicle park.
    • Incorporated municipalities may impose separate rules.

    minimum recreational vehicle spaces triggering review: >= 2 spaces (spaces must be for rent or lease)

    “principally used by the public for camping.”
  • Tiny homes · by state lawUnrestricted

    Unincorporated Pondera County: no county rule sets this, because Pondera County's own reviewed answer confirms it has no county-wide zoning ordinance.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • This finding concerns county zoning regulations; the official Growth Policy separately identifies zoning administered by the City of Conrad and the Town of Valier.
    • County subdivision and floodplain regulations are separate land-use controls and are not county zoning regulations.
    “does not currently have Zoning Regulations”
  • Manufactured homesLimited

    Occupancy of mobile or manufactured homes in county-regulated mobile/manufactured home parks in unincorporated Pondera County.

    • The development must provide two or more spaces for rent or lease for mobile/manufactured homes.
    • The development is subject to county subdivision review and mobile/manufactured home park standards.
    • Homes must be at least 25 feet from a property boundary adjoining a public street or highway right-of-way and at least 15 feet from other park boundary lines.
    • Pads must be at least 10 feet from the serving street.
    • A pad may not occupy more than one-third of its space; the home and roofed accessory buildings or structures may not occupy more than two-thirds of the space.
    • Homes and attached structures must be at least 20 feet apart.
    • At least two off-street parking spaces must be provided per space, plus one guest parking space per 10 spaces.
    • County, Montana Department of Environmental Quality, and applicable local health-authority requirements also apply.
    • Incorporated municipalities may impose separate rules.

    minimum mobile/manufactured home spaces triggering review: >= 2 spaces (spaces must be for rent or lease) · setback from public street or highway right-of-way boundary: >= 25 feet · setback from other park boundary lines: >= 15 feet · pad setback from serving street: >= 10 feet · maximum pad portion of space: <= 1/3 of space · maximum home and roofed accessory structures portion of space: <= 2/3 of space · separation between homes and attached structures: >= 20 feet · off-street parking per home space: >= 2 spaces · guest parking: per 1 space per 10 home spaces (group parking may be provided)

    “MOBILE (MANUFACTURED) HOME PARK: A tract of land that provides or will provide two or more spaces for rent or lease in which a mobile home will be placed.”
  • Accessory dwellings · by state lawUnrestricted

    Unincorporated Pondera County: no county rule sets this, because Pondera County's own reviewed answer confirms it has no county-wide zoning ordinance.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • This finding concerns county zoning regulations; the official Growth Policy separately identifies zoning administered by the City of Conrad and the Town of Valier.
    • County subdivision and floodplain regulations are separate land-use controls and are not county zoning regulations.
    “does not currently have Zoning Regulations”
  • Who permits septicCounty

    Septic-system permitting in Pondera County.

    • The Pondera County Sanitarian administers the county's septic-system permitting function as part of Montana Department of Environmental Quality programs.
    “Other responsibilities include: Communicable Disease Program, which includes reports of possible food borne illness and possible rabies exposure; and Department of Environmental Quality programs such as water quality, subdivisions, septic system permitting, solid waste, air quality, and the junk vehicle program.”
  • Agricultural exemptionAvailable (with conditions)

    Agricultural-use divisions of land outside platted subdivisions in Pondera County.

    • The division must be made outside a platted subdivision.
    • The parties must enter a covenant running with the land that the divided land will be used exclusively for agricultural purposes.
    • Agricultural purposes mean raising crops or livestock or preserving open space and exclude residential, commercial, and industrial uses and structures and facilities for commercially or industrially processing agricultural products.
    • The division must be exempt from MDEQ sanitation review under Section 76-4-125(2)(c), and that exclusion must be invoked on the certificate of survey or conveyance document.
    • Any non-agricultural change of use subjects the parcel to subdivision review.
    • Residential, commercial, or industrial structures may not be used, constructed, or erected on the parcel unless the covenant is revoked through subdivision review.
    • The agricultural covenant may be removed in limited circumstances, including restoration of original lot lines or a qualifying public-purpose use after the required public hearing and written findings.

    agricultural covenant removal findings deadline: 15 working days (Applies when the County Commission considers removal for a qualifying public entity or public purpose.)

    “the divided land will be used exclusively for agricultural purposes.”
  • Subdividing landRegulated (with conditions)

    Subdivision of land within the jurisdictional area of the Pondera County governing body, including county-jurisdiction areas outside incorporated municipalities.

    • The regulations were amended and adopted by the Pondera County Commission on March 6, 2024.
    • If a proposed subdivision lies within one mile of a third-class city or town, two miles of a second-class city, or three miles of a first-class city, the county governing body must submit the preliminary plat to the city or town governing body or designated agent for review and comment.
    • If a proposed subdivision lies partly within an incorporated city or town, the preliminary plat must be submitted to and approved by both the city or town and the county governing body.
    • If a proposed subdivision is in a rural school district, the governing body must provide a summary of the application and preliminary plat information to school district trustees.
    • If the proposed subdivision is also proposed to be annexed to a municipality, the municipality and county coordinate public hearings and the subdivision review and annexation procedures whenever possible.
    • The regulations supplement other applicable regulations, and where they conflict with other laws, regulations, ordinances, or resolutions, the more restrictive requirements apply, including zoning, floodplain, building-code, development-code, airport-affected-area, lakeshore, military-affected-area, and fire-code requirements.
    • A pre-application meeting with the subdivision administrator is required before submitting a subdivision application; the meeting must occur within 30 days after the written request, and a new meeting is required if the application is not submitted within six months.
    • Every final subdivision plat must be filed with the county clerk and recorder before title to subdivided land may be sold or transferred, except as provided in Section 76-3-303, MCA and the regulations' transfer provisions.
    • Required application fees accompany preliminary and final plat applications; review fees follow a separate governing-body fee schedule, and third-party review fees may also be required. Current review fees are available from the County Clerk and Recorder.
    • A person violating the Montana Subdivision and Platting Act or these regulations may face a misdemeanor, a fine of $100 to $500, imprisonment for up to three months, or both; each separate sale, lease, transfer, or offer is a separate offense.
    “These regulations govern the subdivision of land within the jurisdictional area of the governing body of Pondera County.”
  • Building in a floodplainRequired

    New development within a designated Special Flood Hazard Area in Pondera County, including fill, roads, bridges, culverts, transmission lines, irrigation facilities, storage of equipment or materials, excavation, manufactured homes, and new construction, additions, or substantial improvements to residential and commercial buildings.

    • The requirement applies only within a designated Special Flood Hazard Area (SFHA).
    • The applicant must check with the local floodplain administrator to determine whether an SFHA has been designated for the stream of interest.
    • Permit applications are available from the local floodplain administrator.
    • Application fees and timelines are established by the local government and vary widely throughout Montana.
    • The county page provides the Montana Joint Application and instructions for proposed work in Montana waterways and floodplains.
    “Anyone planning new development within a designated Special Flood Hazard Areas (SFHA). Check with local floodplain administrator to determine whether a Special Flood Hazard Areas (SFHA) has been designated for the stream of interest.”
  • Permit processPartial

    Building-permit process in Pondera County, including the county's certified commercial building-code jurisdiction and state building-permit procedures applicable outside certified local-government jurisdiction.

    • Pondera County is listed by Montana DLI as certified for building code enforcement for commercial projects only.
    • The state building-permit process does not apply to projects located within the jurisdictional limits of a certified local-government program.
    • For required state permits, construction plans and a Building Permit/Plan Review Application must be submitted for review and approval.
    • Required building permits must be issued before plumbing, mechanical, or electrical permits can be issued or related work can start.
    • The state page states that plan review takes three weeks on average; after comments are answered in writing and fees are paid, the permit is issued.
    • The cited official pages do not publish Pondera County's county-specific commercial permit application, fee schedule, or review timeline.

    county certified building-code coverage: commercial only · average state plan-review time: 3 weeks (average only)

    “Pondera County | B (commercial only) | Kyle Harlan | 788-3398 | County”

Montana rules that apply here

  • Owner-builder exemptionAvailable (with conditions)

    A homeowner performing plumbing installation personally in a residence for the owner's personal use in Pondera County, where the state plumbing jurisdiction applies.

    • The homeowner must do the plumbing installation personally.
    • The residence must be for the owner's personal use.
    • The residence must not be built on speculation of resale or intended as a rental property.
    • The rule concerns the plumbing-permit exemption and does not establish a blanket exemption from all building, electrical, mechanical, septic, or other requirements.
    • Certified local governments may enforce the plumbing code within their jurisdictional area; all other areas fall under the State's jurisdiction.
    “Homeowners do not need to obtain a plumbing permit provided he/she is doing the plumbing installation themselves”
    3 more reviewed findings on this topic
    • Available (with conditions) — An owner working on the owner's property or contracting with a registered construction contractor, for purposes of Montana construction-contractor regulation.
      “to an owner working on the owner's property, whether occupied by the owner or not”
    • Conditional — An owner of residential property personally performing sanitary plumbing and potable water supply piping work in Pondera County, subject to the statewide Montana plumbing-permit rule.
      “This part does not prohibit the owner of residential property from making an installation for all sanitary plumbing and potable water supply piping without a permit if the owner personally does the work.”
    • Available — An owner working on the owner's property, or an owner contracting for work performed by a registered construction contractor, under Montana's construction-contractor licensing chapter.
      “(13) to an owner working on the owner's property, whether occupied by the owner or not, but this exemption does not apply to an owner”
  • Certificate of occupancyLimited

    Buildings constructed in accordance with the Montana state building code or a county, city, or town building code.

    • The certificate must certify that the building conforms to the applicable building regulations.
    • The statute addresses certificates for buildings constructed under the state or local building code; it does not establish a universal certificate requirement for every structure or every occupancy.
    “A certificate of occupancy for a building constructed in accordance with the provisions of the state building code or county, city, or town building code must certify that the building conforms to the requirements of the building regulations applicable to it.”
  • Septic permitRequired

    Construction, alteration, repair, and extension of wastewater treatment and disposal systems in Montana, including Pondera County.

    • The permit system is administered by the reviewing authority, defined in the cited rules as a local board of health, local health officer, or designee.
    • Permit applications must identify the owner, location, and system type; justify the proposed system; include a scaled lot-layout drawing; and show required separation distances.
    • For new or increased sources, the permit must show the non-significance determination method.
    • Replacement permits that do not meet subdivision minimum standards require notice that the design may limit future subdivision of the property.
    “The reviewing authority shall administer a permit system for the construction, alteration, repair, and extension of wastewater treatment and disposal systems.”
    One more reviewed finding on this topic
    • Required — Installation of a drainfield in Montana, including property already covered by a Certificate of Subdivision Approval.
      “Yes, even thought you have a COSA, a drainfield permit is still required by the local health department.”
  • Off-grid sanitationLimited

    Alternative or off-grid wastewater and sanitation systems in Montana, including Pondera County.

    • Absorption beds are limited to replacement systems and may not be constructed in unstabilized fill.
    • Seepage pits are limited to replacement systems when no other treatment and disposal method is available; permit applications must include plans.
    • Holding tanks are limited to seasonal use, defined as no more than 120 days in a calendar year, unless a variance is granted; applications must include plans, monitoring, waterproofing, annual watertightness testing, periodic pumping by a licensed septic tank pumper, and tank stabilization information when required.
    • Sealed pit privies require no piped water and a seasonal-use recreational site; permit applications must include plans.
    • Unsealed pit privies are limited to seasonal use in remote locations inaccessible to septic tank pumpers.
    • All listed alternatives require the reviewing authority to find that site constraints prevent a DEQ-4 system, off-site alternatives are infeasible, and applicable requirements are met.

    holding-tank seasonal-use limit: <= 120 days per calendar year (A variance may authorize nonseasonal use.)

    “Holding tank systems may be approved only if the facility to be served is for seasonal use. (a) For purposes of this rule “seasonal use” means use for not more than a total of four months (120 days) during any calendar year.”
    One more reviewed finding on this topic
  • Well permitLimited

    New groundwater developments in Montana using 35 gallons per minute or less and no more than 10 acre-feet per year.

    • All water uses starting after June 30, 1973, require a water right either through a water-use permit or an exception to the permitting process.
    • The development may qualify for the exception; qualification is not automatic.
    • Completed groundwater uses that meet the permit exception receive a Groundwater Certificate rather than a water permit.
    • A permitted water right is required for a combined appropriation from the same source by two or more wells or developed springs exceeding 10 acre-feet, regardless of flow rate.
    • All lots in a multi-phase subdivision must share a combined water-use limit of 10 acre-feet per year to qualify for a permit exception.
    • Beginning January 1, 2026, a water user intending to develop water use through a permit exception must file a Notice of Intent with DNRC before using water from an exempt well.
    • DNRC reviews a correct and complete Notice of Intent within 10 business days; if eligible, it authorizes the Notice of Intent and gives the user five years to complete the project, put the water to use, and file a Notice of Completion.
    • If the proposed use is not eligible, the Notice of Intent is denied and the user is directed to the water-right permit process.
    • The Notice of Intent filing fee is $400.
    • An authorized Notice of Intent expires after five years, with an opportunity for one five-year extension.

    maximum flow rate: <= 35 gpm · maximum annual volume: <= 10 acre-feet per year · Notice of Intent fee: 400 USD (Beginning January 1, 2026) · Notice of Intent review period: 10 business days (For a correct and complete Notice of Intent) · authorized Notice of Intent term: 5 years (One five-year extension opportunity is available)

    “Permit Exceptions, a.k.a. Exempt Wells: Small groundwater developments that use 35 gpm or less and do not exceed 10 acre-feet per year are known as “exempt wells” and may qualify for an exception to the water permit process.”
    3 more reviewed findings on this topic
    • Required — New or expanded groundwater uses in Pondera County exceeding 35 gallons per minute or 10 acre-feet per year, and all surface-water uses under Montana's statewide water-right permitting system.
      “Water Permits: A water permit is required for all surface water use and groundwater uses over 35 gallons per minute (gpm) or 10 acre-feet per year.”
    • Limited — Groundwater wells in Pondera County using 35 gallons per minute or less and no more than 10 acre-feet per year, when the proposed use qualifies for Montana's permit exception.
      “Beginning Jan. 1, 2026, water users who intend to develop water use through a permit exception must file a Notice of Intent (Form 602I)”
    • Required — Surface-water uses and groundwater uses exceeding 35 gallons per minute or 10 acre-feet per year in Montana.
      “Water Permits: A water permit is required for all surface water use and groundwater uses over 35 gallons per minute (gpm) or 10 acre-feet per year.”
  • Mandatory utility hookupSewer (with conditions)

    A new wastewater source or replacement for a failed wastewater system when a department-approved public collection and treatment system is readily available near the property.

    • Connection is required only when the public system is within 200 feet of the property line and the system owner or managing entity approves the connection.
    • A system is not readily available if connection is physically or economically impractical or easements cannot be obtained.
    • Connection is economically impractical when its cost equals or exceeds three times the cost of installing an approvable onsite system.
    • The rule requires discharge to the public system rather than an onsite system when the stated conditions are met.

    distance from property line: <= 200 feet (Applies to a department-approved public collection and treatment system.) · economic impracticality threshold: >= 3 times onsite-system installation cost (Connection cost equal to or exceeding three times the cost of an approvable onsite system.)

    “If a department-approved public collection and treatment system is readily available within a distance of 200 feet of the property line for connection to a new source of wastewater, or as a replacement for a failed system, and the owner or managing entity of the public collection and treatment system approves the connection, wastewater must be discharged to the public system.”
  • Driveway accessLimited

    New or modified driveway approaches intersecting Montana state highways, and changes in use of property abutting a state highway or an existing approach.

    • A new or modified approach requires either an approach permit or a right-of-way agreement.
    • A change in property use or change in use of an existing approach requires a new approach permit.
    • The landowner is responsible for obtaining the new permit.
    • The application must be made to the appropriate MDT District Office.
    • A detailed site plan and Environmental Checklist Form are required.
    • The requirement concerns state highways; local roads may be administered by local governments.
    “ALL NEW OR MODIFIED APPROACHES REQUIRE EITHER AN APPROACH PERMIT OR A RIGHT-OF-WAY AGREEMENT.”
  • Short-term rentalsLimited

    Short-term rentals operated in Montana.

    • A Property Manager license is required unless the operator qualifies for an exemption under MCA § 37-56-104 or MCA § 50-51.
    • Local land-use, lodging, tax, and public-accommodation requirements may also apply.

    application fee: 50 USD

    “Short Term Rentals: A Property Manager license is required for short term rentals unless an operator qualifies for an exemption”
  • Permit feesPublished (with conditions)

    State building permits and plan review in areas of Pondera County under the state building-code jurisdiction, including county areas outside the county's certified commercial-only program.

    • The building permit fee is calculated by the state bureau under the International Building Code Section 109.2 schedule as modified by ARM 24.301.138.
    • A plan review fee is due in addition to the building permit fee.
    • The plan review fee is 35 percent of the building permit fee when submittal documents are required.
    • Both the building permit fee and plan review fee must be paid before issuance.
    • The fee valuation includes all construction work and listed finish work, systems, and permanent equipment.
    • Certified local governments may establish their own permit fees and valuation methods; Pondera County is listed by Montana as certified for commercial-only building code enforcement.

    plan review fee: 35 percent of building permit fee (when submittal documents are required)

    “The plan review fee is 35 percent of the building permit fee as established in Table 109.2.”
    One more reviewed finding on this topic
    • Variable (with conditions) — State building permit and plan-review fees for state-administered building permits.
      “The plan review fee is 35 percent of the building permit fee as established in Table 109.2.”
  • Campground & park staysLimited

    Camping in Montana Fish, Wildlife & Parks public-use sites.

    • Camping is prohibited except in areas specifically designated or marked for camping.
    • A camping unit, vehicle, equipment, or personal items may not be left overnight without a person present.
    • Camping longer than 7 nights at one or more campsites in a public use area during any consecutive 30-day period is prohibited unless otherwise posted by the department.
    • Designated occupancy limits must not be exceeded.
    • Special-use-permit terms must be followed unless otherwise posted.
    • Campsites must be vacated by 1 p.m. on the day of departure; camping facilities must be vacated by 12 p.m. on the day of departure.

    maximum camping duration: <= 7 nights per consecutive 30-day period (unless otherwise posted by the department) · campsite departure time: 1 p.m. · camping-facility departure time: 12 p.m.

    “Unless otherwise posted by the department, within a public use site it is prohibited to: [...] camp at one or more campsites in a public use area for a period of longer than 7 nights during any consecutive 30-day period, beginning with the first night occupied unless otherwise posted by the department;”
    One more reviewed finding on this topic
    • Limited — Dispersed and designated-campground temporary camping on legally accessible Montana state trust land administered by DNRC.
      “Dispersed camping is allowed on state trust land with the appropriate permit and with certain restrictions. Dispersed camping on state trust land is allowed with a Conservation License. Camping that is incidental to hunting or fishing is permitted through your conservation license, and no additional permitting is required. Group camping requires a special recreational use license. On leased or licensed land: 2 days On unleased/unlicensed land: 16 days within a 30-day period Within designated campground: 16 days within a 30-day period”
  • county zoning authorityGeneral

    Montana county boards of commissioners' authority to adopt zoning regulations, including in unincorporated portions of established jurisdictional areas.

    • The board of county commissioners must have adopted a growth policy pursuant to Title 76, chapter 1.
    • Zoning may be adopted for all or parts of the jurisdictional area in accordance with Title 76, chapter 2, part 2.
    • Within unincorporated portions of an established jurisdictional area, the board may establish zoning regulations by resolution or divide the county into zoning districts.
    • Zoning regulations may regulate the erection, construction, reconstruction, alteration, repair, location, or use of buildings or structures and the use of land.
    • An action challenging creation of a zoning district or adoption of zoning regulations must be commenced within 6 months after the board's order.
    • Regulations in one district may differ from those in other districts.
    • The statute also states that zoning regulations may not treat manufactured housing or factory-built housing units differently from other residential units, subject to the statutory presumption concerning placement.

    challenge period: 6 months (after the date of the board order creating the district or adopting the regulations)

    “For the purpose of promoting the public health, safety, morals, and general welfare, a board of county commissioners that has adopted a growth policy pursuant to chapter 1 is authorized to adopt zoning regulations for all or parts of the jurisdictional area in accordance with the provisions of this part.”
    One more reviewed finding on this topic
    • General — Montana county boards of commissioners adopting zoning regulations for all or parts of their jurisdictional areas, including unincorporated portions where the statutory prerequisites are met.
      “a board of county commissioners that has adopted a growth policy pursuant to chapter 1 is authorized to adopt zoning regulations”
  • county building authorityGeneral

    Montana counties may adopt and enforce building codes and require construction permits for residential construction in unincorporated county areas, subject to the statutory certification, geographic, code-content, and permit requirements.

    • A county may adopt a building code by ordinance or resolution, or authorize adoption by administrative action.
    • A county may adopt its building code on a countywide basis unless a city or town within the county has adopted a building code; the county may not enforce its county building code within that city or town.
    • The county code-enforcement program must be certified by the Montana Department of Labor and Industry.
    • The current adopted code, current fee list, and current enforcement plan must be filed with and approved by the Department.
    • Inspectors must satisfy the stated state-licensing or approved national-certification requirements.
    • Except for voluntary incentive-based energy-conservation standards, the county may not adopt or enforce a building code more stringent than the code adopted by the Department or required by state law.
    • The county may prohibit construction from commencing until the required permit is issued after compliance is shown.
    • The general construction-permit requirement applies to buildings subject to Title 50, chapter 60, parts 1 through 4.
    • State agency-owned buildings remain under state Department jurisdiction for plan review, permitting, and inspections.
    “The local legislative body of a county, city, or town may adopt a building code to apply to the county, city, or town by an ordinance or resolution, as appropriate: (a) adopting a building code; or (b) authorizing the adoption of a building code by administrative action.”
    One more reviewed finding on this topic
    • General — Montana counties' authority to adopt and enforce building codes and require building-code administration for construction in county areas, including unincorporated areas.
      “The local legislative body of a county, city, or town may adopt a building code to apply to the county, city, or town by an ordinance or resolution, as appropriate: (a) adopting a building code; or (b) authorizing the adoption of a building code by administrative action.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Septic inspection — Inspection requirements for septic or other wastewater treatment systems in Pondera County.

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.

Living off-grid in Pondera County, Montana

Is Pondera County a good place to live off-grid or homestead?

Pondera County scores 71/100 on the Bolthole Index, a strong county profile. Its strengths: deep seclusion — about 3,875 people within 15 miles and low administrative friction for a quiet rural property. Watch-outs: thin water margin (15.9″/yr rainfall).

Do you need a building permit in Pondera County, Montana?

Pondera County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Pondera County Sanitarian (delegated under Montana DEQ). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Pondera County?

Living in an RV on your own land in Pondera County is limited to specific cases: Statewide rule. RV, camper-trailer, and other trailer overnight use for general recreation on legally accessible Montana state trust land administered by DNRC. A Conservation License is required for dispersed camping on state trust land. RV or trailer camping must be within 50 feet of a customary access point; motorized vehicles must be parked within 50 feet of a customary access point, and the camper or trailer may not be set up farther away by driving beyond that point. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Pondera County, Montana?

Land in Pondera County runs about $1,751 per acre, based on the latest county data.

What is the water situation in Pondera County?

Pondera County gets about 15.9" of rain a year, with severe drought in roughly 14.9% of years.

How remote is Pondera County?

A typical private-land location has about 3,875 people within 15 miles and 227,246 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

How Pondera compares in Montana

Compare side-by-side →See all 56 Montana counties ranked →