Bolthole Index

Conejos County, Colorado

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

61Index Score / 100
#18 of 64 in Colorado

Unincorporated Conejos County, Colorado requires a construction permit for new construction, manufactured-home installation and non-exempt remodeling or repairs; county zoning and building inspections apply123. The Conejos County Land Use Office handles building permits and county septic administration, with septic systems also subject to state rules45. Long-term RV dwelling use is prohibited6.

At a glance

Building permit
Required for new construction, manufactured-home installation and non-exempt remodeling or repairs in unincorporated Conejos County1
Building codes
The county requires the 2018 residential/building and energy conservation codes7
Zoning
Yes; district and overlay rules apply in unincorporated areas2
Septic (OWTS)
County Land Use Office permit and inspection; state wastewater standards also apply895
RV living
Long-term dwelling use is prohibited; temporary travel, recreation or vacation use is allowed outside Residential districts610
Tiny home
A county-defined tiny house is permanently anchored, utility-connected and no larger than 600 square feet; zoning and permits still apply1112
Owner-builder exemption
County exemptions cover only listed owner-performed work, not all owner-built construction13
Well
New groundwater wells require a Colorado Division of Water Resources well permit14

Who to call

Building permits

Conejos County Land Use Office

Building permits, zoning and land-use applications, subdivisions, and OWTS (septic) administration in unincorporated Conejos County

719-376-2014

landuse@co.conejos.co.us

PO Box 157, 6683 County Road 13, Conejos, CO 81129

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

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

New construction, manufactured-home installation and non-exempt remodeling or repairs in unincorporated Conejos County require a construction permit before work begins1. The permit lasts one year and lapses after 12 continuous months without construction unless the Land Use Administrator approves an extension12. Conejos County adopted the 2018 residential, commercial building and energy conservation codes effective July 20237. Construction inspections require at least 24 hours’ notice, with final inspection before occupancy; electrical and plumbing inspections go through the state3. A 2% construction and building-materials use tax is deposited at permit issuance15. Owner-work exemptions cover listed activities, not every owner-built home13. Agricultural land-use exemptions do not waive construction permits16.

Who issues building permits in Conejos County, Colorado?

The Conejos County Land Use Office processes building permits in unincorporated Conejos County; call 719-376-2014 or email landuse@co.conejos.co.us4. The county office’s building jurisdiction stops at incorporated town limits, so confirm the parcel’s jurisdiction before applying4. The Land Use Office also administers the county OWTS septic program, with county approval and state wastewater standards applying in unincorporated areas45. The county construction process covers access, addressing, soil evaluation, water, septic and state electrical, plumbing and gas requirements17. Depending on the road, a county driveway permit or Colorado Department of Transportation access permit may be required18. County access and address application fees are $100 and $50, respectively15.

Does Conejos County have zoning?

Conejos County zoning districts and overlays apply to unincorporated land19. Inside La Jara, town zoning applies, and the town prohibits septic tanks rather than offering the county septic-permit path2021. County districts include Agricultural, Rural, Residential, Community/Townsite, Commercial and Industrial, with riparian and floodplain overlays22. Agricultural and Rural districts require 40-foot front, side and rear setbacks; maximum heights are 45 feet in Agricultural and 35 feet in Rural districts2324. Agricultural and Rural minimum lot area is one acre, subject to district and nonconforming-lot provisions25. Rural buildings may cover no more than 20% of lot area26. Residential and Community/Townsite coverage is 20% above half an acre and 30% below half an acre; ask the Land Use Office about lots exactly at that boundary27. We could not confirm a minimum dwelling floor area; ask the Land Use Office.

How do septic permits work in Conejos County?

The Conejos County Land Use Office issues septic permits in unincorporated Conejos County; county approval and inspection apply alongside Colorado wastewater standards85. Where public sewer or a sanitation-district service area is available, reasonable documented efforts to connect are required; otherwise, an alternative wastewater system may be used28. Obtain the septic permit before installation8. Published septic fees are $325 for a new system and $200 for an alteration or repair, and starting installation without a permit doubles the fee15. Installation inspections require 24-hour notice, and an engineered system needs approval from both the design engineer and county inspector9. A home cannot be occupied without an approved wastewater system; cesspools and outhouses are prohibited29. Only 14.8% of county soils avoid severe conventional-drain-field limits, so test septic feasibility early30.

Can you live in an RV or tiny home in Conejos County?

Unincorporated Conejos County limits RV occupancy to temporary travel, recreation or vacation use and prohibits using an RV for long-term dwelling space, storage or an accessory structure6. RV or tent use is prohibited in a Residential district, while an RV park or campground requires special-use review and a land-use permit31. Conejos County allows a qualifying tiny house as a single-family dwelling where the zoning district permits that use; it must be permanently anchored, have permanent utility connections and contain no more than 600 square feet including loft space11. A qualifying tiny house cannot be on wheels or designed to be movable, and still needs a construction permit and approved septic service before occupancy11. A manufactured or mobile home also requires a Land Use Construction Permit in unincorporated Conejos County32.

How do you build a home in Conejos County?

  1. Confirm that the parcel is unincorporated and ask the Land Use Office for its zoning district and overlays42.
  1. Determine whether a county driveway permit or state access permit applies, then obtain a physical address1817.
  1. Arrange the soil evaluation and apply to the Colorado Division of Water Resources for a well permit if a well will serve the home1417.
  1. Submit the construction-permit application with proof of legal water and sanitation and complete drawings; review may take up to 15 days33.
  1. Apply for the county septic permit where public sewer is unavailable, or document reasonable efforts to connect where sewer service is available828.
  1. Schedule required construction and septic inspections before occupancy329.

What should you check before buying land in Conejos County?

Before buying in unincorporated Conejos County, confirm district-specific lot size, setbacks, lot coverage, legal access and any land-division review with the Land Use Office3435261836. In the Floodplain Overlay District, residential construction must place the lowest floor, including a basement, at or above base-flood elevation37. Floodplain development must meet applicable county and FEMA standards, with water and wastewater systems protected against flooding38. Major subdivisions and planned unit developments in designated floodplains must satisfy flood controls before preliminary-plan submission39. New groundwater wells require a state well permit; Colorado Division of Water Resources application review may take up to 49 days14. Only 14.8% of county soils avoid severe conventional-drain-field limits, so evaluate septic feasibility early30.

Watch-outs

  • Unincorporated Conejos County prohibits long-term RV dwelling use and prohibits RV or tent use in a Residential district610.
  • A home may not be occupied without a county- and state-approved septic system, and cesspools and outhouses are prohibited29.
  • An agricultural land-use-permit exemption does not remove construction-permit requirements or other applicable rules16.
  • Conejos County's owner-work exemption covers only listed activities and does not create a blanket exemption for construction of a new residence13.

Sources

  1. Conejos County Land Use Code, quoted and re-checked
  2. Land Use | Conejos County, quoted and re-checked
  3. Land Use | Conejos County, quoted and re-checked
  4. Conejos County Land Use Office (conejoscounty.colorado.gov)
  5. Land Use Step by Step Building/Construction Process, quoted and re-checked
  6. 2005 Conejos County Land Use Code, quoted and re-checked
  7. Land Use | Conejos County, quoted and re-checked
  8. Land Use | Conejos County, quoted and re-checked
  9. Land Use | Conejos County, quoted and re-checked
  10. Conejos County Land Use Code, quoted and re-checked
  11. Land Use Step by Step Building/Construction Process, quoted and re-checked
  12. Land Use Step by Step Building/Construction Process, quoted and re-checked
  13. 2005 Conejos County Land Use Code, quoted and re-checked
  14. Water Administration, quoted and re-checked
  15. Land Use Step by Step Building/Construction Process, quoted and re-checked
  16. 2005 Conejos County Land Use Code, quoted and re-checked
  17. Land Use Step by Step Building/Construction Process, quoted and re-checked
  18. Land Use Step by Step Building/Construction Process, quoted and re-checked
  19. Conejos County Land Use Code, quoted and re-checked
  20. Town of La Jara: La Jara Municipal Code § 91.02 Declared Nuisances (Conejos County), quoted and re-checked
  21. Town of La Jara: La Jara Municipal Code § 51.051 Privies and Water Closets Prohibited (Conejos County), quoted and re-checked
  22. Conejos County Land Use Code, quoted and re-checked
  23. Land Use Step by Step Building/Construction Process, quoted and re-checked
  24. Land Use Step by Step Building/Construction Process, quoted and re-checked
  25. 2005 Conejos County Land Use Code, quoted and re-checked
  26. 2005 Conejos County Land Use Code, quoted and re-checked
  27. Land Use Step by Step Building/Construction Process, quoted and re-checked
  28. Conejos County Land Use Code, quoted and re-checked
  29. conejoscounty.colorado.gov, quoted and re-checked
  30. 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
  31. 2005 Conejos County Land Use Code, quoted and re-checked
  32. 2005 Conejos County Land Use Code, quoted and re-checked
  33. Land Use Step by Step Building/Construction Process, quoted and re-checked
  34. 2005 Conejos County Land Use Code, quoted and re-checked
  35. Land Use Step by Step Building/Construction Process, quoted and re-checked
  36. Land Use | Conejos County, quoted and re-checked
  37. 2005 Conejos County Land Use Code, quoted and re-checked
  38. 2005 Conejos County Land Use Code, quoted and re-checked
  39. 2005 Conejos County Land Use Code, quoted and re-checked

Written October 12, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like all 6 of its neighbors, Conejos County requires a building permit for a home.

RuleConejos CountyRio Grande CountyAlamosa CountyCostilla CountyArchuleta CountyMineral CountySaguache County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesNo
Septic permitsCounty Land UseCounty Dept. of Building SafetyCounty Land Use & Building Dept.County Planning & ZoningCounty Water Quality Dept.County Land Use OfficeCounty Land Use Office

County locator

Conejos County in Colorado

61
County map
Conejos County highlighted among the Colorado counties · colored by Index score

How Conejos County scores

Seclusion81100% ev.
Self-Sufficiency37100% ev.
Admin Boringness4390% ev.
Durability43100% ev.
Property Autonomy75100% ev.
Carry Cost89100% 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 →

$220kTypical home
0.4%Property tax
$2,984Land / acre
17.3"Annual rain
31.6% of yrsSevere drought
0 / yr (+0)Mid-century 100°F days
26 daysMid-century dry spell
1.1" (+5.4%)Mid-century 1-day rain
1.33×Wildfire change factor
100%Forward climate coverage
$1,487Home insurance / yr
3.6% / yrInsurance growth
1.57%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
7,469People within 30 min
88,497People within 2 hr
7,575Radius comparison (15 mi)
5.8People / sq mi
60%Federal land
64.4%Land at 15% slope or less
14.8%Soils rated "not limited" for septic (strict USDA rating)
110,182 acWorkable land screen
33.7%Wooded land
34.6 tonsBiomass / forest ac
40.7°FAvg temp

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Cities and towns in Conejos 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.

Not yet researched: Town of Antonito · Town of Manassa · Town of Romeo · Town of Sanford

Answers from the rulebook for Conejos County

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

Conejos County rules

  • Building permitRequired

    All new construction, including mobile/manufactured-home installation, in the county Land Use Office jurisdiction.

    • The permit is valid for one year from issuance.
    • The permit lapses after 12 continuous months without construction.
    • Renewal or extension requires request and approval by the Land Use Administrator.
    • Changes to structure size, purpose, or location require a new permit.

    permit validity: 1 year (subject to stated lapse and extension provisions)

    “A construction permit is required for all new construction including the installation of a mobile/manufactured home.”
    One more reviewed finding on this topic
    • Required — New construction, including mobile or manufactured homes, and non-exempt remodel or repair in unincorporated Conejos County.
      “A Construction Permit is required for all new construction, and for remodel or repair of existing buildings or structures unless expressly exempted from Construction Permit requirements by Section 5.600.”
  • Owner-builder exemptionConditional

    Owner-performed construction, remodel, or repair activities in unincorporated Conejos County that fall within the County Land Use Code's exemptions from the Construction Permit requirement.

    • The exemption is limited to the listed construction, remodel, or repair activities and does not apply generally to all owner-builder construction.
    • Routine household repairs, maintenance, decorating, or landscaping must not significantly alter existing structural, electrical, or plumbing systems or significantly increase enclosed floor area.
    • Those household activities must not create or exacerbate nonconformancy of the lot or use with the Land Use Code.
    • Minor roof repairs must use less than 100 square feet of material.
    • Re-roofing greater than 100 square feet requires fewer than three existing layers of roofing material and the work must be substantially performed by the owner.
    • The Construction Permit exemption is not an exemption from other applicable state or local permit requirements.
    • The Code separately states that a construction permit is required for all new construction, including installation of a mobile or manufactured home, unless expressly exempted.

    minor roof repair material: < 100 square feet · existing roofing layers for qualifying re-roofing: < 3 layers (The work must be substantially performed by the owner.)

    “Section 5.620 Exemptions from Construction Permit Requirement [...] if the work is substantially performed by the owner.”
  • Building code adoptedAdopted (with conditions)

    New construction in the county Land Use Office process.

    • The county construction-process document states that all building must meet the 2018 International Residential/Building Codes and the 2018 International Energy Conservation Code.

    International Residential/Building Code edition: 2018 · International Energy Conservation Code edition: 2018

    “All building must meet the 2018 International Residential/Building Codes and the 2018 International Energy Conservation Code.”
    One more reviewed finding on this topic
    • Adopted (with conditions) — Residential, commercial, and energy-code requirements administered by Conejos County.
      “Effective July 1, 2023 Conejos County has adopted the 2018 Editions of the IRC for Residential Construction, IBC for Commercial Construction, and the IECC Energy code for both residential and commercial construction.”
  • InspectionsRequired

    Permitted construction in unincorporated Conejos County.

    • The permit holder must provide at least 24 hours' notice.
    • Inspections include foundation, framing/masonry, insulation, midroof, and final inspection.
    • Final inspection occurs after permitted work is complete and before occupancy.
    • Electrical and plumbing inspections are performed through the state.

    inspection notice: >= 24 hours

    “Final inspection shall be made after the permitted work is complete and prior to occupancy.”
    One more reviewed finding on this topic
  • County-wide zoningPresent (with conditions)

    Land-use and zoning regulation in unincorporated Conejos County.

    • The Code applies to unincorporated areas only.
    • Existing compliant structures and uses may continue subject to Article 7 nonconforming-use provisions.
    • The Code states that it becomes effective immediately following enactment by the Board of County Commissioners; no enactment date is stated in the reviewed excerpt.
    “This Land Use Code shall apply to all land within the unincorporated areas of Conejos County.”
    One more reviewed finding on this topic
    • Present (with conditions) — Land-use zoning in unincorporated Conejos County.
      “Our jurisdiction is in the unincorporated territory of Conejos County. The towns within Conejos County are their own municipalities with their own rules.”
  • Local zoningPresent (with conditions)

    County zoning rules for unincorporated Conejos County.

    • The cited county code applies to county zoning districts and overlays; incorporated municipalities may have separate rules.
    “The following zone districts are established.”
  • Zoning districtsPublished (with conditions)

    County zoning districts and overlays in unincorporated Conejos County.

    • The code establishes Agricultural, Rural, Residential, Community/Townsite, Commercial, and Industrial districts.
    • The code also establishes Riparian Protection and Floodplain Overlay Districts.
    • District-specific dimensional standards and use-review requirements apply.
    “A. Agricultural District (A). B. Rural District (RU). C. Residential District (R). D. Community/Townsite District. (C/T) E. Commercial District (C). F. Industrial District (I).”
  • Minimum lot sizeSpecified

    Minimum lot area and lot width in county zoning districts.

    • For land without both central water and sewer, minimum lot area is generally one acre and one acre per dwelling unit in the cited district provisions.
    • For land with both central water and sewer, the cited residential provisions require 7,000 square feet for an interior lot and 9,000 square feet for a corner lot.
    • Lot-width requirements vary by lot size and cul-de-sac conditions.

    minimum lot area without central water and sewer: 1 acre (district provisions may differ) · minimum lot area with central water and sewer, interior lot: 7000 square feet (cited residential provisions) · minimum lot area with central water and sewer, corner lot: 9000 square feet (cited residential provisions)

    “the minimum lot area shall be 7,000 square feet for an interior lot and 9,000 square feet for a corner lot.”
    One more reviewed finding on this topic
    • Specified — Agricultural and Rural zoning districts in unincorporated Conejos County.
      “Lot Size: Minimum lot area for permitted use: One (1) acre.”
  • SetbacksDistrict specific (with conditions)

    Agricultural and Rural zoning districts in unincorporated Conejos County.

    • Agricultural District: 40-foot front, side, and rear setbacks.
    • Rural District: 40-foot front, side, and rear setbacks.

    Agricultural front setback: 40 feet · Agricultural side setback: 40 feet · Agricultural rear setback: 40 feet · Rural front/side/rear setbacks: 40 feet

    “Minimum front setback: forty (40) feet. [...] Minimum side setback: forty (40) feet. [...] Minimum rear setback: forty (40) feet.”
    2 more reviewed findings on this topic
    • Specified — Agricultural and Rural zoning districts in unincorporated Conejos County.
      “Front setback for all uses: forty (40) feet. Minimum side setback: forty (40) feet. Minimum rear setback: forty (40) feet.”
    • Specified — Setbacks in county zoning districts.
      “Industrial District: SETBACKS-Front 50’, Side 10’, Rear 20’; BUILDING HEIGHT – 60’;”
  • Lot coverageSpecified

    Lot coverage in county zoning districts.

    • Rural District lot coverage is 20 percent of lot area.
    • Residential and Community/Townsite District lot coverage is 20 percent for lots one-half acre or larger and 30 percent for lots one-half acre or smaller.

    Rural District lot coverage: 20 percent · Residential/Community-Townsite lot coverage for lots at least one-half acre: 20 percent · Residential/Community-Townsite lot coverage for lots one-half acre or smaller: 30 percent

    “Rural District: SETBACKS-Front 40’, Side 40’, Rear 40’ BUILDING HEIGHT –35’;”
    One more reviewed finding on this topic
    • Specified — Rural zoning district in unincorporated Conejos County.
      “The total coverage of all buildings shall not occupy more than twenty (20%) percent of the lot area.”
  • Building heightSpecified

    Agricultural and Rural zoning districts in unincorporated Conejos County.

    • The cited height limits are district-specific.
    • Other districts may have different standards.

    Agricultural maximum height: <= 45 feet · Rural maximum height: <= 35 feet

    “Height of Buildings: Maximum height for all uses forty five (45) feet.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Agricultural and Rural zoning districts in unincorporated Conejos County.
      “Height of Buildings: Maximum height for all uses forty five (45) feet. [...] Height of Buildings: Maximum height for all uses: thirty-five (35) feet.”
  • Living in an RVLimited

    Recreational-vehicle use and occupancy in unincorporated Conejos County.

    • RV use for storage, as an accessory structure, or as dwelling space other than temporary travel, recreation, or vacation use is prohibited.
    • RV or tent use is prohibited within a residential district.
    • RV parks and campgrounds require Special Use Review and a Land Use Permit.
    • RV/campground setbacks include 20 feet between units and 50 feet from arterial/collector roads or 25 feet from local/mountain roads.

    minimum separation between RVs or camping units: >= 20 feet

    “The use of a recreational vehicle or tent is prohibited within a residential district.”
    2 more reviewed findings on this topic
    • Prohibited — Long-term or non-temporary dwelling occupancy of a recreational vehicle on private land in unincorporated Conejos County.
      “C. Recreational Vehicle Use Restriction. Use of a recreational vehicle for storage purposes, as an accessory structure, or as a dwelling space for any purpose other than temporary dwelling for travel, recreation or vacation use is prohibited. The use of a recreational vehicle or tent is prohibited within a residential district.”
    • Limited — Recreational-vehicle occupancy and use in county zoning districts.
      “Use of a recreational vehicle for storage purposes, as an accessory structure, or as a dwelling space for any purpose other than temporary dwelling for travel, recreation or vacation use is prohibited. The use of a recreational vehicle or tent is prohibited within a residential district.”
  • Camping on your landLimited

    Temporary camping and campground development in unincorporated Conejos County.

    • A recreational vehicle park or campground is subject to special-use review.
    • Construction, development, or alteration of an RV park or campground requires a land-use permit.
    • RV or tent use is prohibited within a residential district.
    “The use of a recreational vehicle or tent is prohibited within a residential district.”
  • Tiny homesLimited

    Occupancy of a site-built or prefabricated tiny house as a single-family dwelling in unincorporated Conejos County.

    • The tiny house must not exceed 600 square feet including loft floor area.
    • The tiny house must be permanently anchored to a foundation and have permanent utility connections.
    • The structure must not be designed to be movable or constructed on a wheel chassis and must not be a manufactured home, recreational vehicle, shipping container, trailer, tiny house on wheels, or similar object.
    • The applicable zoning district must allow the single-family residential structure; Agricultural and Rural districts allow two single-family residential structures, while Residential and Community/Townsite districts allow one.
    • A construction permit is required for new construction, and County/State-approved septic service is required before occupancy.

    maximum floor area: <= 600 square feet including loft floor area

    “Tiny House – a single-family dwelling not exceeding 600 square feet in floor area including loft floor area that is site built or prefabricated. It is permanently anchored to a foundation and provided with permanent utility connections.”
  • Manufactured homesLimited

    Manufactured/mobile-home placement and residential use in unincorporated Conejos County.

    • A valid Land Use Construction Permit is required for installation.
    • A permit and County Assessor mover permit are required for relocation.
    • Pre-1976 mobile homes are prohibited except legally nonconforming homes existing when the code was adopted, subject to proof, permitting, and state-certified inspection.
    • Mobile homes may not be used as storage accessory structures.

    skirting deadline: 60 calendar days

    “No person shall install a manufactured or mobile home in unincorporated Conejos County unless a valid Land Use Construction Permit has been issued by the Land Use Office.”
  • Who permits septicMixed (with conditions)

    On-site wastewater treatment systems in unincorporated Conejos County.

    • County approval and inspection apply.
    • Systems must comply with Colorado Regulation 43 and the OWTS Act.
    “You cannot occupy a home that does not have a County/State approved Septic System.”
    One more reviewed finding on this topic
    • County (with conditions) — Onsite wastewater treatment systems in Conejos County.
      “Land Use staff manages the Onsite Wastewater Treatment System (OWTS) program, a/k/a septic system. Land Use is the regulating authority under the direction of the Colorado Department of Public Health & Environment Regulation 43 and the Conejos County Board of Health.”
  • Septic permitRequired

    Installation of septic/OWTS systems in Conejos County.

    • A double fee applies when installation begins before the permit.
    • The system must be installed under Regulation 43/OWTS Act before use.

    new system fee: 325 USD · alteration or repair fee: 200 USD

    “You must have a septic permit issued by the Land Use Office prior to installing a septic system. A double fee will be charged for beginning work before getting the permit.”
  • Septic inspectionRequired

    New and existing septic/OWTS systems in Conejos County.

    • Existing systems require inspection by a licensed septic installer/cleaner.
    • Installation inspections require at least 24 hours' notice.
    • A second inspection fee of $50 applies if more than one inspection visit is required.
    • No inspections occur December 23 through January 3, during snow, or when the ground is frozen.

    inspection notice: >= 24 hours · second inspection fee: 50 USD (If the inspector must make more than one visit.)

    “Inspections during installation are required. If the system is engineered the design Engineer must approve the system as well as the County Inspector.”
  • Off-grid sanitationLimited

    Off-grid sewage disposal and sanitation in unincorporated Conejos County.

    • An approved septic/OWTS or other compliant wastewater system is required before occupancy.
    • Cesspools and outhouses are prohibited.
    “You cannot occupy a home that does not have a County/State approved Septic System. Cesspools and outhouses are prohibited.”
  • Mandatory utility hookupConditional

    Water, sewer, and other public utilities for development in unincorporated Conejos County.

    • Public utilities, where available, shall be used; if unavailable, alternative systems may be employed.
    • Where a public sanitary sewer main or special sanitation district service area is available, reasonable documented efforts to connect are required and it is the exclusive system used.
    “Where a public sanitary sewer main or service area of a special sanitation district is available, the applicant shall make every reasonable documented effort to connect to such a system and it shall be the exclusive system used.”
  • Agricultural exemptionAvailable (with conditions)

    Specified agricultural activities in Agricultural zoning areas of unincorporated Conejos County.

    • The listed activities are exempt from Land Use Permit requirements, but the exemption does not exempt construction permits.
    • State and federal regulations and other code provisions still apply.
    • The listed exemption does not automatically exempt every agricultural structure or activity.
    “The following uses and activities are exempt from the requirement to obtain a Land Use Permit if the use or activity is proposed for areas of the County that are zoned Agricultural.”
    One more reviewed finding on this topic
    • Conditional — Specified agricultural uses and activities in Agricultural and Rural districts.
      “Exemption from Land Use Permit requirements does not exempt a use or activity from Construction Permit requirements pursuant to Division 5.7.”
  • Subdividing landRegulated (with conditions)

    Division of land, minor subdivisions, major subdivisions, and related subdivision applications in Conejos County.

    • Subdivision review includes county review, planning commission or board action where applicable, water and wastewater evidence, access, utilities, drainage, and other code requirements.
    “The Land Use Office is responsible for the administration and processing of applications for building permits, all subdivisions of land to include division of land, boundary line adjustments, lot consolidations, lot line revisions, large lot (>35 acres) developments, minor (3-6 lots) subdivisions, major (7 or more) subdivisions, amendments to major subdivisions, re-zoning, special (conditional) use permits, variances, vacation of public way, and other land use cases/matters.”
  • Driveway accessRequired

    Access to property for development and construction in Conejos County.

    • An access permit is required under CCLUC Article 14.
    • The county page states that a county driveway permit or CDOT access permit may be required, depending on the road or driveway.

    access permit fee: 100 USD

    “Access to and from the property shall be safe and conform to applicable standards. An access permit is required per Conejos County Land Use Code (CCLUC) Article 14.”
  • Building in a floodplainLimited

    Development and other uses within the Conejos County Floodplain Overlay District in unincorporated areas.

    • The county code states that the standards apply to all uses in the Floodplain Overlay District.
    • Floodway portions must be kept free of development and other encroachments so the base flood is conveyed with no more than a one-foot increase in water-surface elevations.
    • New construction and substantial improvements of residential structures must have the lowest floor, including basement, elevated to or above base flood elevation.
    • Nonresidential construction and substantial improvements must either have the lowest floor elevated to base flood elevation or satisfy the stated floodproofing, structural-load, and professional-certification requirements.
    • All new construction and substantial improvements must be anchored against flotation, collapse, or lateral movement and use flood-resistant materials, methods, and utility placement.
    • All new and replacement water supply systems must minimize or eliminate flood-water infiltration; sanitary sewage systems must minimize or eliminate infiltration and discharge into flood waters; on-site waste disposal systems must avoid impairment or contamination during flooding.
    • The code's floodplain overlay map was partially identified by the Colorado Water Conservation Board's June 2002 Flood Hazard Boundary Map for Conejos County, and the county states the map will be updated as new information becomes available.
    • The county code applies to all land within the unincorporated areas of Conejos County.

    maximum permitted increase in water surface elevation in floodway: <= 1 foot

    “In the Floodplain Overlay, the following minimum standards are required:”
    2 more reviewed findings on this topic
    • Limited — Development in designated or identified floodplains, including major subdivisions and PUDs, in unincorporated Conejos County.
      “All proposed development within a designated or identified floodplain located within a proposed major subdivision or PUD shall comply with the building and land use provisions of this Code and all applicable provisions of the Federal Emergency Management Agency (FEMA) minimum standards and regulation for land use and construction in the identified floodplain.”
    • Limited — Proposed major subdivisions and planned unit developments with portions located in a designated 100-year floodplain, and proposed development in a designated or identified floodplain within a proposed major subdivision or PUD, in unincorporated Conejos County.
      “All major subdivision and PUD proposals shall be consistent with the need to minimize flood damage;”
  • Permit feesPublished (with conditions)

    Published fees and charges for access, addressing, septic/OWTS, inspections, and county construction use tax.

    • Fees vary by permit or activity.
    • A 2 percent county construction and building-materials use tax is deposited at permit issuance.
    • Double septic fees apply for installation without a permit.

    access permit fee: 100 USD · address application fee: 50 USD (Includes an E911-approved reflective address sign.) · new OWTS fee: 325 USD · OWTS alteration or repair fee: 200 USD · county construction and building-materials use tax: 2 percent (Paid by estimate when building/construction permits are issued.)

    “Applications can be obtained at the Land Use Office. New systems $325.00 and Alterations & Repairs $200.00. Double fees apply for installation without a permit.”
  • Permit processPublished

    County building and construction permit process.

    • The published process covers access, physical address, soil evaluation, well permits, construction permit, OWTS permit, and state electrical/plumbing/gas permits.
    • Two sets of construction drawings must be attached to the application.
    • The Building Inspector reviews the application and inspection plan; plan review and approval may take up to 15 days.

    plan review and approval period: <= 15 days (the document says it could take up to 15 days)

    “It could take up to 15 days for plan review and approval.”
    One more reviewed finding on this topic

Colorado rules that apply here

  • 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 well in Colorado that diverts groundwater, including wells located in Conejos County.

    • The state source states that statutory exemptions may apply.
    • If a well does not meet a statutory exemption and its priority date is not senior enough to divert in priority, it may be able to operate pursuant to an augmentation plan decreed by the water court.
    • Conejos County directs applicants to the Division of Water Resources for well permits and requires water supplies to comply with applicable state and local laws and regulations.
    • DWR states that additional rules may apply in designated basins and Denver Basin areas.

    complete application review period: <= 49 days (DWR states review may take up to 49 days) · application fee: associated fee

    “Every new well in the state that diverts groundwater must have a well permit.”
    2 more reviewed findings on this topic
    • Required — Water supplies serving construction in Conejos County.
      “STEP 4: WELL PERMITS: All water supplies shall be in accordance with applicable state and local laws & regulations. Contact the Division of Water Resources for well permits – Alamosa 719-589-6683.”
    • Required — Every new groundwater-diverting well in Colorado, including residential wells, subject to statutory exemptions and basin-specific rules.
      “Every new well in the state that diverts groundwater must have a well permit.”
  • Short-term rentalsLimited

    Short-term rentals statewide, defined in the cited official source as lodging-unit rentals for fewer than 30 days.

    • There is no statewide STR regulatory scheme.
    • Boards of county commissioners may license and regulate STR owners or agencies and set license fees, terms, issuance, and revocation procedures.
    • Home-rule municipalities and private contracts or homeowners' association covenants may impose additional restrictions.

    maximum rental duration for STR definition: < 30 days

    “There are no statewide regulations regarding STRs. As established through House Bill 20-1093, state law allows for boards of county commissioners (BOCCs) to license and regulate an owner or owner’s agency and to fix the fees, terms, and manner for issuing and revoking licenses.”
  • 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.

  • Certificate of occupancy — Certificate-of-occupancy requirements in unincorporated Conejos County.
  • Minimum dwelling size — Minimum dwelling floor area in unincorporated Conejos 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.

Water rights & wells in Conejos County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Colorado’s water agency.

Over-appropriated / declining

The aquifer here is over-appropriated and declining. A domestic well is usually still permit-exempt, but long-term supply is a genuine risk.

Household wellExempt up to a limit

A household obtains water via a permit-exempt small-capacity well (15 gpm) under CRS 37-92-602 outside designated basins or CRS 37-90-105 inside them; on a 35-acre-plus lot limited outside/stock/1-acre irrigation is allowed.

Limit: Household-use-only well: 15 gpm, ≤0.33 acre-ft/yr, indoor only. Domestic well on a 35+ acre tract: 15 gpm, ≤1 acre-ft/yr.

Colorado DWR — Guideline 2023-1, Exempt & Small-Capacity Wells ↗
  • San Luis Valley / Rio Grande Basin (Water Division 3) — groundwater rules & RGWCD subdistrictsmajority of county

    Upper Rio Grande Basin governed by the 2021 Rules Governing Withdrawal of Groundwater in Division 3 and the Rio Grande Water Conservation District subdistricts (No. 1-6 + Trinchera). Confined and unconfined aquifers are over-appropriated; new consumptive appropriations are effectively unavailable, wells must replace injurious depletions, and subdistricts impose pumping curtailment/fees with State-Engineer curtailment for unresolved depletions.

    Colorado DWR — Designated Basins / Division 3 ↗

Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Colorado state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Conejos County, Colorado

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

Conejos County scores 61/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and sparse surroundings — about 7,469 people within a 30-minute drive. Watch-outs: thin water margin (17.3″/yr rainfall).

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

Conejos County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Conejos County Land Use / Board of Health (OWTS under CDPHE Regulation 43). 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 Conejos County?

Living in an RV on your own land in Conejos County is limited to specific cases: Recreational-vehicle use and occupancy in unincorporated Conejos County. RV use for storage, as an accessory structure, or as dwelling space other than temporary travel, recreation, or vacation use is prohibited. RV or tent use is prohibited within a residential district. A tiny home is limited to specific cases. Confirm with the county before relying on it.

How much does land cost in Conejos County, Colorado?

Land in Conejos County runs about $2,984 per acre, based on the latest county data.

What is the water situation in Conejos County?

Conejos County gets about 17.3" of rain a year, with severe drought in roughly 31.6% of years. On water rights, Conejos County lies in the San Luis Valley / Rio Grande Basin (Water Division 3) — groundwater rules & RGWCD subdistricts — Upper Rio Grande Basin governed by the 2021 Rules Governing Withdrawal of Groundwater in Division 3 and the Rio Grande Water Conservation District subdistricts (No. 1-6 + Trinchera). Confined and unconfined aquifers are over-appropriated; new consumptive appropriations are effectively unavailable, wells must replace injurious depletions, and subdistricts impose pumping curtailment/fees with State-Engineer curtailment for unresolved depletions..

How remote is Conejos County?

A representative private-land location has about 7,469 people within a 30-minute drive and 88,497 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Conejos compares in Colorado

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