Bolthole Index

Ouray County, Colorado

Building permits, zoning and land rules in Ouray County, Colorado

63Index Score / 100
#11 of 64 in Colorado

Unincorporated Ouray County, Colorado requires building permits for every habitable structure, regardless of size, with limited exceptions for minor and qualifying agricultural structures1. The county also zones unincorporated land, and the parcel's district controls uses, lot size and setbacks234. Building, septic and long-term-camping applications go through CloudPermit5.

At a glance

Building permit
Required for habitable structures in unincorporated areas, with limited exceptions1
Zoning
Yes; unincorporated land is divided among eight zones2
Septic permit
Required for new, altered or repaired systems; apply through CloudPermit65
RV living
Long-term camping is permitted through CloudPermit; ask Land Use about duration and use78
Tiny home
Full-time units need a permanent engineered foundation and local approval9
Owner-builder
No explicit exemption was confirmed; ask Land Use10
Private well
A state permit is required, subject to exceptions11
County-road driveway
An address and driveway application is required for a new driveway or first improvement12

Who to call

Building permits

Ouray County Land Use & Planning Department

Planning, zoning, building permits and county septic permits

970-626-9775

111 Mall Road, Ridgway, CO 81432 (mailing: PO Box 28, Ridgway CO 81432)

Online permits →

Roads & driveways

Ouray County Road & Bridge Department

County-road address and driveway applications and county road questions

970-626-5391

111 Mall Road, P.O. Box 456, Ridgway, CO 81432

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in Ouray County, Colorado?

Yes. Unincorporated Ouray County requires a permit for every structure with habitable space, regardless of size, as well as other construction1. Tool sheds, play houses, certain fences, certain greenhouses, some yurt platforms and qualifying agricultural structures are listed exceptions; mining claims above 9,480 feet require direct inquiry to Land Use1. The agricultural exception is narrow: the structure must sit on at least 35 acres outside a subdivision, have agricultural tax status and be used exclusively for agriculture13. Ouray County has adopted building codes for county-administered construction14.

Who issues Ouray County building permits, and how do you reach them?

The Ouray County Land Use & Planning Department handles the county's planning and building functions8. The office is at 111 Mall Road in Ridgway, with mail going to PO Box 28, Ridgway, CO 81432; its phone number is 970-626-97758. Building, septic, short-term-rental and long-term-camping applications must be submitted online through CloudPermit, with building and septic plans uploaded as PDF files; hard copies are not accepted5. County-regulated projects require staged inspections, including site, foundation, framing and final inspections, with separate state electrical and plumbing inspections15. Occupancy must wait until the county issues a certificate of occupancy after required inspections and corrections are complete16.

Does Ouray County have zoning?

Yes. Unincorporated Ouray County is divided into eight zoning districts, where a use may be allowed by right or may need a special-use permit2. The City of Ouray and Town of Ridgway are separate zoning authorities17. Rural districts commonly require 35 acres, while Colona allows a 6,000-square-foot minimum buildable lot; district exceptions apply3. Setbacks likewise vary by district, lot size, highways, subdivisions and planned developments4. County zoning generally caps structures at 35 feet unless a lower high-alpine standard or an approved planned development or special-use permit controls18. Colona uses a maximum 1:1 floor-to-lot ratio19. Ask Land Use to match the parcel to the controlling official map before designing the site208.

How do septic permits work in Ouray County?

The Ouray County Land Use Department requires a permit before a new onsite wastewater treatment system is installed or an existing system is altered, expanded or repaired6. The application fee is $365, and the tank or soil-treatment area must remain 50 feet from a lake, watercourse, irrigation ditch, stream or wetland6. After layout approval, the system is inspected with its components exposed before backfill by the design engineer and building inspector21. An unsewered building cannot receive occupancy approval until its wastewater installation passes final review22. Only 4.8% of county soils are rated without severe limitations for a conventional drain field, so make wastewater feasibility an early purchase contingency23.

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

Ouray County regulates long-term camping and requires its permit application through CloudPermit, but we could not confirm the full private-land RV occupancy limits; ask Land Use about the parcel, setup and length of stay78. In unincorporated Ouray County, a tiny home used full time, or one built with a frame or axles, must have the frame or axles removed and be installed on a permanent engineered foundation9. The county treats a tiny home as a dwelling of 800 square feet or less, excluding lofts, and all habitable structures still require a building permit regardless of size924. Local zoning must also allow the dwelling25.

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

  1. Ask Land Use to confirm the zoning district, allowed use, lot size, setbacks and any site-development review268.
  1. Confirm legal access. A first improvement, new driveway or new single-family home requires an Address and Driveway Permit Application12.
  1. Establish water and wastewater service; a planned development may use an approved provider, qualifying well, central sewer or compliant onsite system2728.
  1. Obtain the septic permit before construction approval for an unsewered building22.
  1. Submit building and septic plans as PDFs through CloudPermit5.
  1. Schedule the required building and septic inspections, then obtain the certificate of occupancy before moving in152116.

What should you check before buying land in Ouray County?

Confirm zoning, access, water, wastewater and flood exposure before treating a parcel as buildable261229. Only 46.5% of county land has a slope of 15% or less, and 68.8% is forested3031. New groundwater wells generally need a state permit, subject to exceptions and basin rules11. Planned developments and subdivisions undergo county review for zoning, roads, water, wastewater and access32. Colorado generally excludes divisions creating parcels of at least 35 acres when no parcel is intended for multiple owners, but local administration still applies33. A short-term rental in unincorporated Ouray County requires a permit from Land Use, while the municipalities have separate rules34.

Watch-outs

  • We could not confirm an owner-builder exemption; ask Land Use whether self-building changes any requirement108.
  • A long-term-camping permit path exists, but we could not confirm the complete private-land RV occupancy limits; ask Land Use what the parcel and proposed stay require78.
  • Only 4.8% of soils are rated without severe limits for a conventional drain field, so septic feasibility can change a homesite's viability23.

Sources

  1. What Requires a Building Permit, quoted and re-checked
  2. Section 3 – Zoning, quoted and re-checked
  3. Section 3 – Zoning, quoted and re-checked
  4. Section 3 – Zoning, quoted and re-checked
  5. Forms & Applications, quoted and re-checked
  6. Septic System (OWTS) Permit Application, quoted and re-checked
  7. Forms & Applications, quoted and re-checked
  8. Ouray County Land Use & Planning Department (ouraycountyco.gov)
  9. Resolution 2020-004 Adopting the 2018 Building Code, quoted and re-checked
  10. (2026 county census)
  11. Water Administration (Colorado statewide rule), quoted and re-checked
  12. Building Permit Application, quoted and re-checked
  13. What Requires a Building Permit, quoted and re-checked
  14. Building Information, quoted and re-checked
  15. Informative Brochure, quoted and re-checked
  16. Informative Brochure, quoted and re-checked
  17. Section 3 – Zoning, quoted and re-checked
  18. Section 3 – Zoning, quoted and re-checked
  19. Section 3 – Zoning, quoted and re-checked
  20. Section 3 – Zoning, quoted and re-checked
  21. Building Permit Application, quoted and re-checked
  22. Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
  23. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  24. What Requires a Building Permit, quoted and re-checked
  25. Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
  26. Section 3 – Zoning, quoted and re-checked
  27. Section 06 Planned Unit Developments, quoted and re-checked
  28. Section 06 Planned Unit Developments, quoted and re-checked
  29. SB24-179 Floodplain Management Program (Colorado statewide rule), quoted and re-checked
  30. Share of land at 15% slope or less: Bolthole Index county data
  31. Wooded share of land: Bolthole Index county data
  32. Land Use Code, quoted and re-checked
  33. Colorado Revised Statutes 2024, Title 30—Government—County (Colorado statewide rule), quoted and re-checked
  34. Short Term Rental Permitting, quoted and re-checked

Written September 29, 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

Ouray County in Colorado

63
County map
Ouray County highlighted among the Colorado counties · colored by Index score

How Ouray County scores

Seclusion89100% ev.
Self-Sufficiency48100% ev.
Admin Boringness4190% ev.
Durability36100% ev.
Property Autonomy75100% ev.
Carry Cost74100% 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 →

$812kTypical home
0.3%Property tax
$2,949Land / acre
21.5"Annual rain
29.4% of yrsSevere drought
0 / yr (+0)Mid-century 100°F days
20.3 daysMid-century dry spell
0.99" (+5.5%)Mid-century 1-day rain
1.25×Wildfire change factor
100%Forward climate coverage
$1,994Home insurance / yr
3.6% / yrInsurance growth
1.27%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
96,684People within 2 hr
5,469Radius comparison (15 mi)
9.6People / sq mi
45.7%Federal land
46.5%Land at 15% slope or less
4.8%Septic soil without severe limits
15,607 acWorkable land screen
68.8%Wooded land
30 tonsBiomass / forest ac
42.1°FAvg temp

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Answers from the rulebook for Ouray County

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

Ouray County rules

  • Building permitRequired

    Habitable structures and other construction in unincorporated Ouray County.

    • Tool sheds, play houses, certain fences, certain greenhouses, some yurt platforms, and certain agricultural structures are listed as not requiring a building permit.
    • The form cannot be applied unilaterally to mining claims above 9,480 feet.
    “All Structures with Habitable Space (regardless of size)”
    One more reviewed finding on this topic
    • Required — Habitable structures and other construction in unincorporated Ouray County.
      “All Structures with Habitable Space (regardless of size)”
  • Building code adoptedAdopted

    Building-code administration by Ouray County.

    • The page also references a separate resolution adopting the codes.
    “Ouray County has re-adopted the 2018 International Building Code, 2018 International Code, and the 2018 International Energy Conservation Code.”
    One more reviewed finding on this topic
    • Adopted — County building regulation administered by the Ouray County Land Use Department.
      “Ouray County has re-adopted the 2018 International Building Code, 2018 International Code, and the 2018 International Energy Conservation Code.”
  • InspectionsRequired

    County-regulated building projects.

    • Required inspections include site, footing/foundation, framing, insulation, drywall nailing, septic where applicable, and final inspection.
    • Foundation inspections must be performed by a Colorado-registered professional engineer at the permittee’s expense.
    • State electrical and plumbing inspections are scheduled separately.
    “All inspection requests must be made at least 24 hours in advance of the requested inspection date / time.”
  • Certificate of occupancyRequired

    Occupancy of county-regulated buildings.

    • All required inspections must be completed.
    • The project must comply with approved plans, specifications, the Uniform Building Code, and local rules.
    • Outstanding code violations must be corrected.
    • A temporary C.O. may be issued if remaining work does not involve fire, safety, or structural issues.
    “Occupancy is not permitted until a Certificate of Occupancy is issued!”
  • County-wide zoningPresent (with conditions)

    County zoning in unincorporated Ouray County.

    • The code establishes zones and an Official Zoning Map.
    • Uses may be permitted by right or may require a site-specific special-use permitting process.
    • Construction of new structures may require a Site Development Permit and building permit.
    “All Zones shall be designated on the “Official Zoning Map of Ouray County” which is on file in the records of the County Clerk and Recorder.”
    One more reviewed finding on this topic
    • Present (with conditions) — Zoning in unincorporated Ouray County.
      “The County is hereby divided into eight (8) zones, as follows:”
  • Local zoningPresent (with conditions)

    County zoning for unincorporated Ouray County; incorporated City of Ouray and Town of Ridgway may apply their own municipal rules.

    • County zoning applies to unincorporated areas; incorporated municipalities are separate authorities.
    “All Zones shall be designated on the “Official Zoning Map of Ouray County” which is on file in the records of the County Clerk and Recorder.”
  • Zoning districtsPublished

    County zoning districts and the Official Zoning Map for unincorporated Ouray County.

    • The official county Land Use Code page publishes Section 03: Zoning.
    • The zoning section states that all zones are designated on the Official Zoning Map of Ouray County, with the filed county map controlling in case of conflict.
    • The code also identifies municipal overlay districts including Ridgway UGMA, Ridgway AOI, Ouray UGMA, and Ouray AOI.
    “The following Municipal Overlay Districts are hereby established: (1) The Ridgway UGMA (2) The Ridgway AOI (3) The Ouray UGMA (4) The Ouray AOI”
    One more reviewed finding on this topic
    • Published (with conditions) — County zoning districts and official zoning map for unincorporated Ouray County.
      “A copy of the map is attached to this Code and, in the event of any conflict between the copy and the map on file in the County records, the latter shall be conclusively deemed to prevail.”
  • Minimum lot sizeSpecified

    Planned Unit Developments in Ouray County.

    • One-acre minimum applies when served by OWTS.
    • Smaller lots may be allowed with central sewage treatment if overall density requirements are maintained.

    minimum lot size: 1 acre (smaller lots may be allowed with central sewage treatment)

    “MINIMUM LOT SIZE: One acre, if served by an on-site wastewater treatment system (OWTS). Smaller lots may be allowed if connected to a central sewage treatment system, provided the overall density requirements for the zone, district or PUD are maintained.”
    One more reviewed finding on this topic
    • Specified — Minimum lot sizes vary by County zoning district.
      “Minimum Lot Size: The minimum buildable lot size for allowed uses shall be 6,000sq ft.”
  • SetbacksSpecified

    Structures on parcels of two acres or less in the Section 3.8H2 district.

    • The standard applies to parcels of two acres or less.
    • No structure may be closer than 100 feet from the centerline of U.S. Highway 550 or Colorado Highway 62.

    side setback: 10 feet (Parcels must have an area of two acres or less.) · back setback: 10 feet (Parcels must have an area of two acres or less.) · front setback: 25 feet (Parcels must have an area of two acres or less.) · highway centerline setback: >= 100 feet (Applies to U.S. Highway 550 and Colorado Highway 62.)

    “the minimum setback for structures shall be ten (10) feet from the side and back property lines and twenty-five (25) feet from the front property line”
    One more reviewed finding on this topic
    • Specified — Structure setbacks in County zoning districts.
      “All structures shall be located at least twenty-five (25) feet from any property lines unless approved otherwise in a PUD”
  • Lot coverageSpecified

    Floor-to-lot coverage control in the Colona zoning district.

    • The source uses the term floor-to-lot ratio rather than a conventional lot-coverage percentage.

    maximum floor-to-lot ratio: 1:1

    “Floor-to-Lot Ratio: Maximum floor-to-lot ratio shall not exceed 1:1.”
  • Building heightSpecified

    Buildings and structures in County zoning districts.

    • A lower height may be required by High Alpine Development Regulations.
    • Approved PUDs and special-use permits may provide different requirements.

    maximum height: <= 35 feet (Unless a lower High Alpine requirement, approved PUD, or special-use permit applies.)

    “In all zones, the maximum height of a building or other structure shall not exceed thirty-five (35) feet, unless a height of less than thirty-five (35) feet is required within the High Alpine Development Regulations (See Section 24 of this Code), an approved PUD, or as otherwise provided in a special use permit.”
  • Camping on your landLimited

    Long-term camping regulated by Ouray County.

    • A long-term camping permit application is provided by the County.
    • Applications must be submitted online through Cloudpermit and hard-copy applications are not accepted.
    “Please note that all permits for buildings, septic systems, short-term rental permits, and long-term camping permits must now be applied for on-line, in Cloudpermit.”
  • Tiny homesLimited

    Tiny homes intended for full-time occupancy or having a frame or axles in unincorporated Ouray County.

    • The county defines a tiny home as a dwelling 800 square feet or less excluding lofts.
    • Full-time occupancy or a frame or axles requires removal and installation on a permanent engineered foundation.
    • The source establishes a foundation condition, not unrestricted occupancy.

    tiny-home floor area: <= 800 square feet or less, excluding lofts

    “All tiny homes intended for full time occupancy or having a frame or axels must be removed and the structure installed on a permanent engineered foundation.”
    One more reviewed finding on this topic
    • Limited — Tiny homes used as dwelling units in unincorporated Ouray County.
      “*Note that any dwelling unit will require an engineered foundation – Tiny homes are not excluded from that requirement.”
  • Who permits septicCounty (with conditions)

    OWTS/septic permitting and fee administration in Ouray County.

    • The County Board acts as the Board of Health for the referenced OWTS fee approval.
    • State and County OWTS regulations may both apply.
    “the Board acting as the Board of Health also approves the amended fees set forth for OWTS (Septic) Permits”
  • Septic permitRequired

    New, altered, repaired, or emergency-use OWTS work in unincorporated Ouray County.

    • The county application includes new, alteration, repair, and emergency-use permit categories.
    • The application fee is $365 under the 2024 fee schedule.
    • A 50-foot setback applies from an OWTS tank or soil treatment area to a lake, water course, irrigation ditch, stream, or wetland.
    • The opened application separately lists City of Ouray and Town of Ridgway locations; municipal applicability is not generalized here.

    application fee: 365 USD (2024 fee schedule) · OWTS setback from listed water features: 50 feet (lake, water course, irrigation ditch, stream, or wetland)

    “Prior to installing, altering, expanding or repairing an OWTS, the applicant must obtain a permit from the Ouray County Land Use Department.”
  • Septic inspectionRequired

    Septic construction inspection for building-permit work in unincorporated Ouray County.

    • Inspection occurs after the general layout is approved and the tank and lines or infiltrator system and all other components are in place, before backfill.
    • The engineering firm responsible for the system design performs the inspection with the building inspector.
    • The source also states that site inspection occurs before excavation or construction.
    “g) Septic - Occurs following the approval of the general layout with the tank and lines or infiltrator system in place, all other components or materials in place, and prior to back-fill. The engineering firm responsible for the system design will perform these inspections with building inspector.”
  • Off-grid sanitationLimited

    PUD development using an on-site wastewater treatment system.

    • An OWTS must meet state and County regulations.
    • The claim is limited to the PUD standard located in Section 6.8(B)(1)(b).
    “Sanitary sewage treatment shall be provided by a Title 32 special district, municipality, or OWTS that meets the requirements of state and County regulations.”
  • Mandatory utility hookupConditional

    PUD development reviewed under Section 6.

    • Water may be provided by a Title 32 special district, water conservancy district, an on-site well demonstrating sustainable yield and availability, or another approved provider.
    • Sanitary sewage treatment may be provided by a Title 32 special district, municipality, or OWTS meeting state and County regulations.
    “Water service shall be provided by a Title 32 special district, water conservancy district, an on-site well”
  • Agricultural exemptionConditional

    Certain agricultural structures.

    • The structure must be on 35 acres or more, not in a subdivision, have agricultural taxing status, and be used exclusively for agriculture.

    minimum parcel size: >= 35 acres (Must also satisfy the other listed conditions.)

    “Certain Agricultural Structures – 35 Acres +, not in a Subdivision, Ag. Taxing status, used exclusively for Ag.”
  • Subdividing landRegulated (with conditions)

    Planned Unit Developments and subdivision-related development in Ouray County.

    • PUD applications are reviewed by the Planning Commission or Joint Planning Board and BOCC.
    • Underlying zoning, road, water, wastewater, access, and other Land Use Code standards apply.
    “Section 07: Improvement Standards (PUD's, Subdivisions, and Certain SUP's)”
  • Driveway accessLimited

    New driveway access and first improvements associated with building-permit projects in unincorporated Ouray County.

    • If a project is the first improvement to the property or requires a new driveway, an Address and Driveway Permit Application must be submitted.
    • New single-family homes must submit an Address and Driveway Permit Application.
    • The driveway standards include a 12-foot driving surface, 32-foot interior radii, 16-foot driveway opening, maximum 12 percent grade for new subdivision lots, adequate sight distance, and a 60-to-90-degree approach angle.

    driving-surface width: >= 12 feet · interior radii: >= 32 feet · driveway opening: >= 16 feet · grade for new subdivision lots: <= 12 percent · roadway approach angle: 60 to 90 degrees

    “If the project is the first improvement to the property, or will require a new driveway, an Address and Driveway Permit Application must be submitted.”
  • Short-term rentalsLimited

    Short-term rentals in unincorporated Ouray County.

    • Prior county Short-Term Rental Permit is required.
    • The county page states a cap of 100 permits consisting of 50 Type 1 and 50 Type 2 permits, plus 25 Type 3 permits.
    • The City of Ouray and Town of Ridgway have separate regulations.

    maximum permits: 100 permits (page also states 25 Type 3 permits are allowed) · rental duration: <= 30 days (definition on county page)

    “The operation of a short-term rental in Ouray County requires prior issuance of a Short-Term Rental Permit from the Land Use Department.”
  • Permit feesPublished (with conditions)

    County building, septic, land-use, and related permits.

    • Building permit fees are determined under Appendix L of the 2018 International Building Code and Section 5 of Resolution 2020-04.
    • Other fees may apply, including road impact, septic, plan-check, address, and site-development fees.
    • The road-impact fee is charged to construction of all single-family dwellings.
    • A 2024 resolution approved revised fee schedules on November 19, 2024.

    road impact fee: 3244.22 USD (Charged to construction of all single-family dwellings.) · credit card processing fee: 2.4 percent (Applies to building and septic permit payments through CloudPermit.) · e-check processing fee: 1.5 USD (Applies to building and septic permit payments through CloudPermit.)

    “Credit card payments will be charged a 2.4% processing fee and e-checks will be charged $1.50.”
  • Permit processPublished (with conditions)

    County building, septic, short-term rental, and long-term camping permit applications.

    • Applications must be submitted online in Cloudpermit.
    • Hard-copy applications are no longer accepted.
    • Building and septic plans must be submitted in electronic PDF format.
    “Hard copy applications are no longer accepted.”
    One more reviewed finding on this topic
    • Published (with conditions) — Building, septic, short-term rental, and long-term camping applications.
      “Please note that all permits for buildings, septic systems, short-term rental permits, and long-term camping permits must now be applied for on-line, in Cloudpermit. (https://cloudpermit.com/) - Hard copy applications are no longer accepted.”

Colorado rules that apply here

  • 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.”
  • Accessory dwellingsAllowed (with conditions)

    One accessory dwelling unit as an accessory use to a single-unit detached dwelling in a Colorado subject jurisdiction where single-unit detached dwellings are allowed.

    • The rule applies to a subject jurisdiction: either a municipality with a population of at least 1,000 within a metropolitan planning organization, or the portion of a county within a census-designated place of at least 40,000 people that is also within a metropolitan planning organization.
    • The subject jurisdiction must allow the ADU through an administrative approval process.
    • The rule applies on or after June 30, 2025.
    • The state requirement does not establish that every Colorado municipality or county area is a subject jurisdiction.

    maximum required ADUs per single-unit detached dwelling: 1 unit · effective date: >= 2025-06-30 · qualifying municipality population: >= 1000 persons (municipality must also be within a metropolitan planning organization) · qualifying census-designated-place population: >= 40000 persons (county portion must also be within a metropolitan planning organization)

    “Section 1 requires a subject jurisdiction, on or after June 30, 2025, to allow, subject to an administrative approval process, one accessory dwelling unit”
  • Well permitRequired

    Every new groundwater-diverting well in Colorado, including residential wells, subject to statutory exemptions and basin-specific rules.

    • The Division of Water Resources administers groundwater permitting and issues permits.
    • Applicants must complete the appropriate application and pay the associated fee.
    • Statutory exemptions and additional Denver Basin or Designated Basin rules may affect the requirement or permit conditions.
    • In many areas, a well may also require an augmentation plan if its priority is not sufficient to divert in priority.

    complete-application review time: <= 49 days (DWR states review of complete new and replacement applications may take up to 49 days)

    “Every new well in the state that diverts groundwater must have a well permit.”
  • 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 county building requirements.
  • Minimum dwelling size — Minimum dwelling size in County zoning districts.
  • Living in an RV — Occupancy of recreational vehicles on private land in unincorporated Ouray 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 Ouray County, Colorado

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

Ouray County scores 63/100 on the Bolthole Index, a solid county profile. Its strengths: sparse surroundings — about 5,469 people within 15 miles and a stronger property-autonomy legal backdrop. Watch-outs: elevated current hazard exposure and more administrative friction around building and land use.

Do you need a building permit in Ouray County, Colorado?

Ouray County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Ouray County Land Use Department. 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.

How much does land cost in Ouray County, Colorado?

Land in Ouray County runs about $2,949 per acre, based on the latest county data.

What is the water situation in Ouray County?

Ouray County gets about 21.5" of rain a year, with severe drought in roughly 29.4% of years.

How remote is Ouray County?

A typical private-land location has about 5,469 people within 15 miles and 435,326 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

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

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How Ouray compares in Colorado

Compare side-by-side →See all 64 Colorado counties ranked →