Bolthole Index

San Miguel County, Colorado

Building permits, zoning and land rules in San Miguel County, Colorado

52Index Score / 100
#33 of 64 in Colorado

San Miguel County, Colorado generally requires a development permit for construction, alteration, demolition, occupancy changes and regulated building-system work.1 Building development permits are not required in the West End Zone District, although other permits may still apply.1 County zoning and septic review also affect rural projects, so confirm the parcel's zone before designing a home.23

At a glance

Building permit
Generally required; building development permits have a West End Zone District exception1
Zoning
Yes; use the county zoning map and Zone District Finder24
Septic
County Environmental Health administers OWTS permitting3
RV occupancy
Allowed for recreation subject to duration and quantity limits5
Tiny home
State approval and local zoning compliance are required6
Owner-builder
No exemption confirmed; ask the Building Department7
Private well
A Colorado well permit is generally required8

Who to call

Building permits

San Miguel County Building Department

Building permits, plan review, building inspections and permit records

970-728-3923

[email protected]

333 W Colorado Avenue, 3rd Floor, Telluride, CO 81435

Online permits →

Planning & zoning

San Miguel County Planning Department

Zoning, development permits, land-use applications and Land Use Code questions

970-369-5423

333 W Colorado Avenue, 3rd Floor, Telluride, CO 81435

Online permits →

Septic permits

San Miguel County Department of Environmental Health

On-site wastewater treatment system permitting and environmental-health questions

970-369-5442

[email protected]

333 W Colorado Avenue, 3rd Floor, Telluride, CO 81435

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

Do you need a building permit in San Miguel County, Colorado?

Generally, yes. San Miguel County requires a development permit when an owner or authorized agent plans to construct, enlarge, alter, repair, move or demolish a building, change its occupancy, or perform regulated electrical, gas, mechanical or plumbing work.1 A new residence uses one Development Permit that encompasses Planning, Building, OWTS and Road & Bridge requirements.9

The major geographic exception is the West End Zone District, where building development permits are not required, although other permits may still be required.1 Do not read that exception as permission to skip septic, access, well or other approvals that apply to the project.10118 Outside the West End exception, residential review uses the county's adopted ICC code cycle.12 We could not confirm a general agricultural-building exemption or owner-builder exemption, so ask the Building Department before treating either as exempt.713

Who issues San Miguel County building permits, and how do you reach the office?

The San Miguel County Building Department handles building permits, plan review, inspections and permit records from 333 W Colorado Avenue in Telluride; call 970-728-3923 or email [email protected].13 Inspection requests are made by opening the permit in SmartGov.13

Start land-use questions with the San Miguel County Planning Department at the same street address; call 970-369-5423 for zoning, development-permit and Land Use Code guidance.14 Planning permits and licenses are available through SmartGov, and the county's published process sends a new-home Development Permit through Planning, Building, OWTS and Road & Bridge review.149 Colorado plumbing and electrical permits and inspections are managed by the state rather than the county.12 Ask both county offices which supporting plans and outside approvals are needed for the parcel before submitting, especially if the site is in the West End Zone District.1

Does San Miguel County have zoning?

Yes. San Miguel County publishes a Land Use Code, zoning map and interactive Zone District Finder for land under county jurisdiction.24 Incorporated municipalities may apply their own land-use rules instead, so verify whether the parcel is actually under county jurisdiction before relying on county standards.2

The mapped zone matters because we could not confirm one countywide minimum home size, minimum lot size, lot-coverage limit, height limit or setback. Ask Planning to identify the exact district and applicable dimensional standards before drawing a site plan.14 A yurt may serve as a primary dwelling or, depending on the zone district, an accessory dwelling or caretaker unit; an accessory structure is allowed only on property that already has a primary dwelling.15 Colorado-regulated tiny homes may be approved for long-term living, but state approval does not override San Miguel County zoning.6

How do septic permits work in San Miguel County?

San Miguel County Environmental Health administers development, permitting, installation, repair and replacement of on-site wastewater treatment systems in the county.3 Contact the Department of Environmental Health at 970-369-5442 or [email protected].16 A Development Permit is required before constructing or modifying an OWTS, although the reviewed county material contains an inconsistency about geographic exceptions that should be resolved with Environmental Health for the parcel.10

Colorado also requires an OWTS permit before construction, alteration, installation, repair or use when a structure lacks sewer service.17 State law requires a final inspection after permitted work is complete and before the system is used.18 Only about 11.8% of mapped county soils avoid a severe-limitation rating for a conventional drain field, so budget for parcel-specific soil evaluation and the possibility of a more complex design.19 Off-grid sanitation still must provide adequate sewage disposal.20

Can you live in an RV or tiny home on land in San Miguel County?

San Miguel County allows a landowner or guests to occupy tents or RVs for recreation or vacation under the county Land Use Code.21 If occupancy exceeds 14 days in a calendar quarter, only one RV or temporary shelter may be occupied on the property at a time; occupying more than one beyond that threshold requires a Temporary Use Permit.5 An RV used as a temporary dwelling during home construction requires a valid building permit for the permanent home, connection to that home's water and sewage systems, and animal-resistant refuse storage.5

A Colorado-regulated tiny home can be approved for long-term living after state plan approval, compliance with applicable codes and compliance with local zoning.6 San Miguel County's own tiny-home occupancy rule and minimum dwelling size remain unconfirmed, so obtain a parcel-specific answer from Planning before purchasing a unit.14 A dwelling yurt needs water, and electrical and plumbing permits apply.22

Building a home in San Miguel County: what are the steps?

  1. Ask Planning to confirm county jurisdiction, the parcel's zone, allowed residential use and applicable dimensional standards.214
  2. Confirm legal access; proposed access to a county road requires a Development Permit, while direct access to a state highway requires a Colorado access permit.1123
  3. Resolve wastewater service with Environmental Health and apply for an OWTS Development Permit when onsite treatment is needed.1016
  4. Apply to the Colorado Division of Water Resources if the project needs a new groundwater well.8
  5. Submit the residence Development Permit through SmartGov for coordinated Planning, Building, OWTS and Road & Bridge review.9
  6. Obtain separate state plumbing and electrical approvals when applicable and schedule county building inspections through SmartGov.1213
  7. Complete the required OWTS final inspection before using the system.18

What should you check before buying land in San Miguel County?

Confirm zoning, legal access, water and septic feasibility before treating a listing as buildable. San Miguel County maps zoning by district, requires a Development Permit for access to a county road and generally requires state permitting for a new groundwater well.4118 Conventional septic feasibility deserves early attention because only about 11.8% of mapped soils avoid severe limitations for a conventional drain field.19

Terrain and public land can narrow practical choices: about 39.9% of county land has a slope of 15% or less, while about 61.5% is federally owned.2425 Those countywide figures do not describe a particular tract, so verify the surveyed building envelope, easements and access on the parcel itself. Development in regulated floodplain areas must meet local standards that equal or exceed federal minimum criteria and comply with state rules.26 For carrying-cost context, the effective property-tax rate is about 0.3%, with a median annual property-tax bill around $1,599.2728

Watch-outs

  • The West End Zone District exception applies to building development permits, not automatically to every septic, access, well, plumbing or electrical approval.1101112
  • The county's reviewed OWTS material contains inconsistent geographic exception language; ask Environmental Health whether an OWTS Development Permit is required for the exact parcel.1016
  • We could not confirm a county owner-builder exemption, minimum dwelling size or county-specific tiny-home occupancy rule; ask Building and Planning before relying on any of them.71314

Sources

  1. Community Development - Applications and Permits FAQs, quoted and re-checked
  2. Land Use Code, quoted and re-checked
  3. On-Site Wastewater Treatment (Septic) Systems, quoted and re-checked
  4. Land Use Code, quoted and re-checked
  5. Camping On Private Property FAQs, quoted and re-checked
  6. Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
  7. (2026 county census)
  8. Water Administration (Colorado statewide rule), quoted and re-checked
  9. Planning, quoted and re-checked
  10. On-Site Wastewater Treatment (Septic) Systems, quoted and re-checked
  11. Community Development - Applications and Permits FAQs, quoted and re-checked
  12. Residential Development Application Submittal Requirements, quoted and re-checked
  13. San Miguel County Building Department (sanmiguelcountyco.gov)
  14. San Miguel County Planning Department (sanmiguelcountyco.gov)
  15. Yurts, quoted and re-checked
  16. San Miguel County Department of Environmental Health (sanmiguelcountyco.gov)
  17. Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
  18. Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
  19. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  20. Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
  21. Camping On Private Property FAQs, quoted and re-checked
  22. Yurts, quoted and re-checked
  23. Access Permits | Frequently Asked Questions (Colorado statewide rule), quoted and re-checked
  24. Share of land at 15% slope or less: Bolthole Index county data
  25. Federal land share: Bolthole Index county data
  26. SB24-179 Floodplain Management Program (Colorado statewide rule), quoted and re-checked
  27. Effective property tax rate: Bolthole Index county data
  28. Median property tax bill: Bolthole Index county data

Written September 27, 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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County locator

San Miguel County in Colorado

52
County map
San Miguel County highlighted among the Colorado counties · colored by Index score

How San Miguel County scores

Seclusion85100% ev.
Self-Sufficiency29100% ev.
Admin Boringness4190% ev.
Durability33100% ev.
Property Autonomy75100% ev.
Carry Cost73100% 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 →

$1597kTypical home
0.3%Property tax
$2,179Land / acre
17.9"Annual rain
29% of yrsSevere drought
1.5 / yr (+1.4)Mid-century 100°F days
23.4 daysMid-century dry spell
0.97" (+5.6%)Mid-century 1-day rain
1.2×Wildfire change factor
100%Forward climate coverage
$3,017Home insurance / yr
5.8% / yrInsurance growth
1.11%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
3,301Radius comparison (15 mi)
6.1People / sq mi
61.5%Federal land
39.9%Land at 15% slope or less
11.8%Septic soil without severe limits
73,335 acWorkable land screen
46.9%Wooded land
22.4 tonsBiomass / forest ac
45.4°FAvg temp

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Answers from the rulebook for San Miguel County

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

San Miguel County rules

  • Building permitRequired

    Construction, enlargement, alteration, repair, movement, demolition, occupancy change, or regulated building-system work in San Miguel County.

    • A development permit is required for the listed work.
    • Building development permits are not required in the West End Zone District, but other permits may be required.
    • A new residence requires a Development Permit through SmartGov encompassing Planning, Building, OWTS, and Road & Bridge requirements.
    “Any owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by the International Codes, or to cause any such work to be done is required to have a development permit. Development permits for building are not required in the West End Zone District, but other permits may be required.”
  • Building code adoptedAdopted (with conditions)

    County building-code review for residential development outside the West End exception.

    • Residential submittal requirements state that the current code cycle is the 2018 ICC-codes.
    • West End FAQs state that building plan approval and housing code inspections are not required there, but construction must still meet code standards.
    • Colorado manages plumbing and electrical permits and inspections.

    code cycle: 2018 ICC-codes

    “Correct code cycle (currently the 2018 ICC-codes)”
  • InspectionsRequired

    Yurts used as dwellings or accessory structures in San Miguel County.

    • At minimum, a building permit and inspection are needed for the yurt and platform.
    • Additional inspections apply when heated only with a solid-fuel appliance and no other utilities.
    • Dwellings or yurts using gas, propane, or electricity must comply with all county building codes.
    • This claim does not establish a universal inspection requirement for every building type.
    “At a minimum, a building permit and inspection will be needed to ensure the yurt and platform meet minimum load requirements.”
  • County-wide zoningPresent (with conditions)

    County Land Use Code and zoning map for San Miguel County land subject to county jurisdiction.

    • The county page states the Land Use Code is effective June 3, 2025.
    • The page identifies a zoning map and interactive Zone District Finder.
    • Municipal land-use rules may apply within incorporated municipalities.
    “Land Use Code (external link) (Effective June 3, 2025) [...] Zoning Map [...] For the most updated and interactive zoning information, go to the GIS map launch page and use the Zone District Finder web app.”
  • Zoning districtsPublished (with conditions)

    San Miguel County zoning districts and official zoning map.

    • The county page links the Land Use Code, zoning map, GIS map, and Zone District Finder.
    • The online code is updated quarterly beginning in 2025.
    • The county page states the code is effective June 3, 2025.
    “Land Use Code (external link) (Effective June 3, 2025) [...] Zoning Map [...] For the most updated and interactive zoning information, go to the GIS map launch page and use the Zone District Finder web app.”
  • Living in an RVLimited

    Non-commercial recreational RV occupancy on individual parcels and temporary RV dwelling during construction.

    • Landowners or guests may occupy RVs for recreational or vacation purposes subject to Land Use Code Section 5-714.
    • If occupied longer than fourteen days in a calendar quarter, only one RV or temporary shelter may be occupied on a property at a time.
    • More than one RV or temporary shelter may be occupied for longer than fourteen days only with a Temporary Use Permit under Section 5-301 A.
    • An RV used as a temporary dwelling during construction requires a valid building permit for the permanent single-family dwelling, connection to the water supply and sewage disposal system serving that dwelling, and refuse in an animal-resistant container.
    • RV and camping-space rentals are not allowed as short-term rentals.

    calendar-quarter threshold: > 14 days (only one RV or temporary shelter may be occupied on a property)

    “If occupied longer than fourteen (14) days in a calendar quarter, only one (1) RV or temporary shelter may be occupied on a single property at a time. [...] Properties may be permitted to have more than one (1) RV or temporary shelter occupied at the same time for longer than fourteen (14) days in a calendar quarter, subject to approval of a Temporary Use Permit pursuant to Section 5-301 A.”
  • Camping on your landLimited

    Non-commercial camping by tents or RVs on individual parcels.

    • Recreational or vacation camping is subject to Land Use Code Section 5-714.
    • After fourteen days in a calendar quarter, only one RV or temporary shelter may be occupied at a time.
    • A Temporary Use Permit under Section 5-301 A is required for more than one RV or temporary shelter beyond that threshold.

    calendar-quarter threshold: > 14 days (one RV or temporary shelter maximum absent Temporary Use Permit)

    “Non-commercial tents and/or Recreational Vehicles (RVs) may be occupied by the landowner or by their guests on individual parcels for recreational or vacation purposes subject to the standards in the San Miguel County Land Use Code Section 5-714. If occupied longer than fourteen (14) days in a calendar quarter, only one (1) RV or temporary shelter may be occupied on a single property at a time.”
  • Accessory dwellingsLimited

    Accessory dwelling or caretaker units, including yurt dwelling units.

    • A yurt may be an accessory dwelling or caretaker unit depending on the zone district.
    • An accessory structure must be on a property with an existing primary dwelling.
    • ADU eligibility is zone- and subdivision-dependent.
    “The Yurt may be the Primary Dwelling Unit or it may be an Accessory Dwelling Unit/Caretaker Unit (depending on the zone district). [...] Accessory Structures are only allowed on properties where there is already a Primary Dwelling Unit.”
  • Who permits septicCounty (with conditions)

    On-site wastewater treatment systems in San Miguel County.

    • The county Board of Health adopts OWTS permit fees.
    • The OWTS fee resolution states administration by the San Miguel County Planning Department.
    • Colorado Regulation 43 and state requirements are also referenced.
    “Under Public Health’s Environmental Health Department, the OWTS program administers the development, permitting, installation, repair and replacement of domestic wastewater treatment systems with a daily flow of less than 2000 gpd (gallons per day) in San Miguel County.”
  • Septic permitRequired

    Construction or modification of an OWTS in San Miguel County.

    • A Development Permit is required to begin construction or modification of an OWTS.
    • The county page states that in all areas except the West End Zone, Sawpit, and Ophir, a development permit is required before OWTS construction.
    • Permitting efforts may proceed concurrently and applications are through SmartGov.
    • The county applications FAQ separately states OWTS are required in all zone districts by Public Health; the exception language is retained as a documented inconsistency requiring further review.
    “To begin construction or modification of an OWTS, a Development Permit needs to be obtained for the system. [...] In all areas in San Miguel County EXCEPT the West End Zone, Sawpit and Ophir a development permit is required prior to construction of an OWTS.”
  • Off-grid sanitationLimited

    Off-grid sanitation for yurts and similar dwelling structures.

    • Composting toilets are allowed.
    • Greywater from sinks, tubs, and showers must be handled appropriately and may not be drained onto the ground.
    • Other permits may be required for the dwelling and OWTS.
    “Composting toilets are allowed, but there will still be grey water from sinks and tubs/showers, and that must be handled appropriately. It is not allowed to drain onto the ground.”
  • Well permitRequired

    A yurt that is considered a dwelling and requires its own water supply.

    • The county states that the permit is obtained from the Colorado Division of Water Resources.
    • A county Development Permit is required before drilling the well.
    • Cisterns require Board of County Commissioners approval.
    “Any Yurt that is considered a Dwelling must be served by water. You will need to obtain a Well Permit from the Colorado Division of Water Resources. A Development Permit is required prior to drilling the well. Cisterns are only permitted if approved by the Board of County Commissioners.”
  • Mandatory utility hookupConditional

    Yurts used as dwelling units.

    • A yurt that is a dwelling must be served by water.
    • Electrical and plumbing permits are required for dwelling-unit yurts.
    • A general countywide water-or-sewer connection rule was not established.
    “Any Yurt that is considered a Dwelling must be served by water. [...] Therefore, electrical and plumbing permits are required for a Yurt that is a Dwelling Unit, and may be required in a Yurt that is an Accessory Building.”
  • Driveway accessRequired

    Proposed access to a County Road and driveway construction or improvement in San Miguel County.

    • Any proposed access to a County Road requires a Development Permit.
    • Other permits are required for disturbances to County roads or rights-of-way.
    • Driveways 150 feet or longer require fire-department approval.
    • State-highway access permits are issued by CDOT.

    driveway length: >= 150 ft (fire department approval required)

    “Any proposed access to a County Road requires a Development Permit.”
  • Short-term rentalsLimited

    Short-term rental use of yurt dwelling units and accessory structures.

    • Only yurts that are single-family dwelling units with a full kitchen and bathroom can be short-term rentals.
    • A Short-Term Rental permit is required under Land Use Code Section 5-30.
    • Yurts that are accessory dwelling units, caretaker units, accessory structures, or not previously approved by the county cannot be used as short-term rentals.
    • The county camping FAQ states that rentals of accessory structures, RVs, camping spaces, and other spaces outside the primary dwelling unit are not allowed as short-term rentals.

    short-term-rental duration: < 30 consecutive days (definition and other zone-specific rules may apply)

    “Only Yurts that are considered a Single-Family Dwelling Unit, having a full kitchen and bathroom, can be a Short-Term Rental. A Short-Term Rental permit is required, pursuant to Land Use Code Section 5-30, and it must meet all safety requirements. Yurts that are accessory dwelling units, caretaker units or accessory structures, or that have not previously been approved by San Miguel County as described above, cannot be used as a Short-Term Rental.”
  • Permit processPublished (with conditions)

    County planning, development, short-term-rental, and related permit applications.

    • Applications are submitted through SmartGov.
    • A single Development Permit can encompass Planning, Building, OWTS, and Road & Bridge requirements for a new residence.
    • A development permit must generally be started within one year of issuance or re-application may be necessary.
    “You will need to apply for a Development Permit when you would like to build a new residence in San Miguel County. The Development Permit applications encompasses the requirements for the Planning, Building, OWTS, and Road & Bridge Departments. You can apply for this permit through our SmartGov portal.”

Colorado rules that apply here

  • Building heightDistrict specific (with conditions)

    Municipal zoning districts in Colorado where the municipality adopts building-height or story regulations.

    • The applicable height or story limit is determined by the municipality's zoning regulations and district classification.
    • The statute provides authority but no statewide numeric height limit.
    • Height restrictions do not apply to existing buildings under the cited municipal zoning authority, except as stated for new growth of vegetation.

    building height or number of stories: local regulation (No statewide numeric limit specified)

    “the governing body of each municipality is empowered to regulate and restrict the height, number of stories, and size of buildings and other structures”
  • Tiny homesAllowed (with conditions)

    Colorado Division of Housing-regulated tiny homes intended for residential occupancy and long-term living.

    • Plans must be submitted to the Colorado Division of Housing for approval before construction of the units.
    • The unit must satisfy applicable Colorado-adopted codes and standards and local zoning requirements.
    • Tiny home units are certified for the specific site where installed; relocation to another Colorado site requires the applicable design criteria, and design differences require revisions.

    foundation types: permanent or temporary

    “Tiny homes are approved for long term living”
  • Manufactured homesAllowed (with conditions)

    Installation and resulting residential use of HUD-code manufactured homes and mobile homes in Colorado, subject to Colorado Division of Housing requirements and local zoning or building requirements.

    • HUD homes must be certified by the applicable State Administrative Agent for installation in Colorado; imported units are monitored by the State Administrative Agent of the state from which they are imported, rather than necessarily by Colorado's SAA.
    • A HUD home may be installed anywhere in Colorado only where local zoning allows it.
    • Local jurisdictions may require site mitigation to meet local wind and snow loads, but the mitigation cannot directly affect or change the construction of the home itself.
    • The Division of Housing regulates installation and installation inspections for HUD homes; mobile-home foundation and structural construction requirements are regulated by local jurisdictions with active building departments.
    • The state minimum HUD design criteria listed by the source are Wind Zone 1, Thermal Zone 3, and Middle Roof Load Zone (30 psf).

    wind zone: 1 zone · thermal zone: 3 zone · roof load zone: 30 psf (Middle Zone)

    “HUD homes [...] can be installed anywhere in Colorado as long as the local zoning allows for it.”
  • Septic inspectionRequired

    OWTS construction, installation, alteration, or repair statewide before the system is placed in use, plus operating inspections when authorized under applicable rules.

    • A final inspection must occur after permitted work is completed and before the system is placed in use.
    • The local public health agency or its designated professional engineer determines compliance with the permit, statute, and applicable rules.
    • For a building not serviced by a sewage treatment works, an occupancy permit requires final OWTS inspection and local agency approval.
    “Final inspection of a system to be made by the local public health agency or its designated professional engineer after construction, installation, alteration, or repair work under a permit has been completed, but before the system is placed in use, to determine that the work has been performed in accordance with the permit and that the system is in compliance with this article and the rules adopted under this article;”
  • Subdividing landRegulated (with conditions)

    Division of land and creation of interests subject to Colorado county subdivision law.

    • Divisions creating parcels of at least 35 acres each are excluded when none is intended for use by multiple owners.
    • Additional statutory exclusions include certain 35-acre-per-interest divisions, court or eminent-domain divisions, security instruments, investment entities, cemetery lots, severed mineral or water interests, certain joint-tenancy or tenancy-in-common interests, parcel combinations, contingent sale contracts, and cluster developments.
    • A board of county commissioners may exempt a division from the subdivision definition by rule, regulation, or resolution if it determines the division is not within the purposes of the subdivision statute.
    • Local county subdivision regulations and review procedures still determine administration.

    parcel-size exclusion: >= 35 acres (Each parcel must be at least 35 acres and none may be intended for use by multiple owners.) · minimum area per interest for listed exclusion: >= 35 acres per interest (Subject to the statutory exceptions and anti-evasion language.)

    “"Subdivision" or "subdivided land" means any parcel of land in the state which is to be used for condominiums, apartments, or any other multiple-dwelling units, unless such land when previously subdivided was accompanied by a filing which complied with the provisions of this part 1 with substantially the same density, or which is divided into two or more parcels, separate interests, or interests in common, unless exempted under paragraph (b), (c), or (d) of this subsection (10).”
  • Building in a floodplainRequired

    Development in floodplain areas subject to Colorado floodplain-management requirements, and state-owned land in counties or municipalities that do not participate in the National Flood Insurance Program.

    • Local floodplain regulations must equal or exceed FEMA National Flood Insurance Program minimum design and construction criteria.
    • Local floodplain regulations must comply with Colorado Water Conservation Board rules and regulations for regulatory floodplains.
    • The state program applies to development on state-owned land in counties and municipalities that do not participate in the National Flood Insurance Program.
    “Local government floodplain management regulations for development in floodplain areas must equal or exceed the federal emergency management agency's national flood insurance program's (national flood insurance program) minimum design and construction criteria and must comply with the Colorado water conservation board's (CWCB) rules and regulations for regulatory floodplains in Colorado.”
  • Campground & park staysAllowed (with conditions)

    Temporary overnight camping, including parking a motor home or traveler, on land and water under the control of Colorado Parks and Wildlife, including state parks and state recreation areas.

    • The source addresses lands and waters under the control of the Division of Parks and Wildlife, not all public or private land statewide.
    • Camping includes parking a motor vehicle, motor home, or traveler for the apparent purpose of overnight occupancy.
    • A commission-issued permit may be required; the statute defines permits to include campground permits and electrical hookup permits.
    • The state may charge fees for required passes or permits for use of any state park or state recreation area where supervision, maintenance, or specified facilities warrant a fee.

    overnight occupancy: true (Camping definition includes the parking of a motor vehicle, motor home, or traveler for the apparent purpose of overnight occupancy.) · permit types: campground permits; electrical hookup permits

    “Develop state parks and state recreation areas suitable for such recreational activities as camping, [...] "Camping" means [...] the parking of a motor vehicle, motor home, or traveler”
  • county zoning authorityGeneral

    Colorado counties adopting zoning plans for all or any part of unincorporated territory.

    • The county planning commission may make the zoning plan; in a county having a county planning commission, it must do so upon order by the board of county commissioners.
    • The zoning plan may regulate districts or zones, including building location, height, bulk, size, lot coverage, lot size, open spaces, population density, building and land uses, and access to sunlight for solar energy devices.
    • The plan may include regulations for uses on or along storm or floodwater runoff channels or basins only when the channel or basin has been designated and approved by the Colorado water conservation board, to lessen or avoid hazards from storm or floodwaters.
    • The statute applies to unincorporated territory and does not describe incorporated cities or towns as within this county zoning grant.
    “zoning all or any part of the unincorporated territory within such county”
  • county building authorityGeneral

    Colorado counties adopting and enforcing building codes and requiring building permits in designated unincorporated areas.

    • A board of county commissioners may adopt a building code in all or part of the county, but the area must not be within the limits of an incorporated city or town.
    • Buildings or structures used solely to shelter agricultural implements, farm products, livestock, or poultry may be excepted from the building code and permit requirement.
    • Before adoption, the county planning commission may designate part or all of the county for the building code upon request from the board of county commissioners; the board must hold a public hearing and publish notice once weekly for four consecutive weeks.
    • After adoption of the building code, construction, reconstruction, alteration, or remodeling in the designated area requires a building permit, except for the agricultural-shelter exception.
    • The board must fix a reasonable schedule of building-permit fees; no permit fee may be charged unless a qualified inspector actually performs an inspection.
    • Plans must conform to the building code, and plans and specifications generally must bear the seal of a Colorado-licensed architect or engineer unless exempted by section 12-120-403.
    • Every county adopting or updating a building code must adopt and enforce an energy code meeting or exceeding one of the three most recent International Energy Conservation Code versions under section 30-28-211.
    • The 2025 amendment to section 30-28-204 is effective January 1, 2026 and adds accessibility requirements for substantially amended or updated county building codes, with an exception for compliant one- and two-family dwellings and townhomes.
    “A board of county commissioners is authorized to adopt ordinances and a building code”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemptions from San Miguel County building or development requirements.
  • Certificate of occupancy — Certificate-of-occupancy requirements for San Miguel County buildings.
  • Minimum dwelling size — County minimum dwelling-size requirements.
  • Minimum lot size — County minimum lot-size requirements.
  • Lot coverage — County lot-coverage requirements.
1 more unanswered
  • Agricultural exemption

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 San Miguel County, Colorado

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

San Miguel County scores 52/100 on the Bolthole Index, a solid county profile. Its strengths: deep seclusion — about 3,301 people within 15 miles and a stronger property-autonomy legal backdrop. Watch-outs: thin water margin (17.9″/yr rainfall) and elevated current hazard exposure.

Do you need a building permit in San Miguel County, Colorado?

San Miguel County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by San Miguel County OWTS / Environmental Health (under CDPHE). 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 San Miguel County?

Living in an RV on your own land in San Miguel County is limited to specific cases: Non-commercial recreational RV occupancy on individual parcels and temporary RV dwelling during construction. Landowners or guests may occupy RVs for recreational or vacation purposes subject to Land Use Code Section 5-714. If occupied longer than fourteen days in a calendar quarter, only one RV or temporary shelter may be occupied on a property at a time. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in San Miguel County, Colorado?

Land in San Miguel County runs about $2,179 per acre, based on the latest county data.

What is the water situation in San Miguel County?

San Miguel County gets about 17.9" of rain a year, with severe drought in roughly 29% of years.

How remote is San Miguel County?

A typical private-land location has about 3,301 people within 15 miles and 432,717 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

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

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How San Miguel compares in Colorado

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