Bolthole Index

Montezuma County, Colorado

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

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#5 of 64 in Colorado

Unincorporated Montezuma County, Colorado does not require a building permit for a home: the county has not adopted residential building codes and has no building department.12 Zoning does apply: the Land Use Code covers all unincorporated land, with a 3-acre minimum lot for new homes.34 Septic permits come from the Montezuma County Public Health Department's Environmental Health team, and new homes also need a county address and usually a driveway permit.56

At a glance

Building permit
Not required for residential construction in unincorporated areas; commercial and industrial buildings must meet the Uniform Building Code 1997 or later17
Certificate of occupancy
Not issued by the county2
Zoning
Yes, countywide in unincorporated areas; 3-acre general minimum lot, 10 acres in the Dolores River Valley34
Septic permit
Required, through Montezuma County Environmental Health; engineered plans must accompany the application58
Dwelling setback
Minimum 30 feet from a county road right-of-way and from lot lines9
Planning fees
$500 zoning application with new development (2017 schedule; confirm current)10
Manufactured / tiny homes
Allowed statewide if certified and locally zoned1112
Owner-builder
You may build your own home; state licensing for electrical and plumbing work may still apply13

Who to call

Planning & zoning

Montezuma County Planning & Zoning

Zoning, the Land Use Code, rezoning and land-use permitting questions for unincorporated Montezuma County

(970) 565-2801

planning@co.montezuma.co.us

109 West Main Street, Room 270, Cortez, CO 81321

Building permits

Montezuma County Planning & Zoning (building-related permits)

County-assigned addressing, driveway/access permits, and setback standards for new construction; there is no separate building department and no residential building-code enforcement

(970) 565-2801

109 West Main Street, Room 270, Cortez, CO 81321

Septic permits

Montezuma County Environmental Health

Septic system applications and permits, plus retail food, child care and school sanitation, for Montezuma County

(970) 564-4763

Montezuma County Annex, 106 West North, Cortez, CO 81321

Floodplain permits

Montezuma County Floodplain Administrator

Floodplain determinations and elevation certificates under the county's Floodplain Resolution 13-2008

565-7402

Contact details are copied from each office’s official page and were checked against it on October 16, 2026.

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

No, not for a home. Montezuma County has not adopted building codes for unincorporated areas, so it has no residential building permit requirement; state electrical and plumbing rules may still apply.1 That answers the "counties with no building codes" question: the county does not enforce residential building codes, and you may hire a qualified private inspector if you want one.14 The county does not issue certificates of occupancy either.2

Several approvals still come first. Residential development requires approval of the septic system location and type, approval of the driveway access design and location, and a county address.15 Commercial and industrial buildings are different: all new construction and remodeling must comply with the Uniform Building Code 1997 or later.7 The county's rules apply to unincorporated land; the Town of Dolores, for one, requires a building permit for any accessory structure larger than 120 square feet.16 If your land sits in a platted subdivision, check the covenants too, since some set stricter design standards than the county does.

Who handles building, zoning and septic questions in Montezuma County?

Montezuma County has no building department, so Montezuma County Planning & Zoning, at (970) 565-2801, is the office for zoning, addressing and driveway permits for unincorporated land, at 109 West Main Street, Room 270, in Cortez.176 For any new development, residential or commercial, the county directs applicants to its online permit center, and the same form helps with address, septic and driveway permits.6

Septic permits are handled separately. Montezuma County Environmental Health, at (970) 564-4763, reviews septic applications and awards the permits from the Montezuma County Annex, 106 West North, in Cortez.185 For a floodplain determination or elevation certificate, contact the county Floodplain Administrator at 565-7402; a floodplain development permit is required when the property is in FEMA-designated floodplain.1920

A driveway permit is required unless you access off a red-signed road that the county does not own or maintain.21 If your access is directly off a state highway, call CDOT at 970-385-3626.22

Planning fees are published: the county's fee schedule lists $500 for a zoning application filed with new development, $1,000 for a new high impact permit and $50 for a floodplain certification review, though that schedule is dated 2017, so confirm current amounts with Planning & Zoning.1017

Does Montezuma County have zoning?

Yes. The Montezuma County Land Use Code applies to all land in unincorporated Montezuma County, and incorporated towns have their own rules.3 Cortez, the Town of Mancos and the Town of Dolores each run their own zoning inside their limits: Cortez23, Mancos24 and Dolores25. Septic permits stay with the county health department except where a municipality maintains its own public health agency.26

In the unincorporated county, the code pairs landowner-initiated agricultural and residential zones with separate High Impact permitting for commercial and industrial uses.27 Minimum lot size depends on the zone: A-80+ requires 80 acres, AGZ 20 acres, A/R 35+ 35 acres, A/R 10-34 10 acres, and A/R 3-9 and R-3 3 acres.282930313233 The 3-acre zones, A/R 3-9 and R-3, are not allowable within the Dolores River Valley.33

Countywide, the general threshold for a new home is 3 acres, net of green-signed county road rights-of-way, and 10 acres within the Dolores River Valley, where the lot must also include at least 30 percent developable land.34 On A/R 35+ land, a Cluster Incentive Planned Unit Development can create lots smaller than 3 acres only to preserve agricultural land or open space, with at least 75 percent of the parcel kept in agriculture or common open space.35 Subdividing property or changing its use must also comply with the Land Use Code.36 Developments must provide adequate water, sewer and access.37

A dwelling must sit at least 30 feet from a county road right-of-way and 30 feet from lot lines, and within the Dolores River Valley new construction and septic systems must be 100 feet from the existing stream bank.9 The code lists building height maximums of 35 feet in some districts and 45 feet in the larger agricultural districts, and a footprint cap of 12 percent of the lot size in the cited sections.3839 The county also provides a zoning map through its GIS office; ask Planning & Zoning for your parcel's zone before designing, since district standards control.4017

How do septic permits work in Montezuma County?

Every onsite wastewater system of up to 2,000 gallons a day in Montezuma County needs a permit before it is installed, altered, expanded or repaired, and Environmental Health reviews the application and awards it.85 The application must be complete and include engineered plans, and road impact fees may apply.8 A permit is not issued where a municipality or sewer district provides feasible public sewer service.26 A permit expires 1 year after issuance if construction has not started, and a change in plans after issuance voids it unless the health department approves the change in writing.8 County rules operate in addition to Colorado Regulation 43, and the county's local regulations took effect March 5, 2026.8

Colorado law also requires a final inspection before a septic system goes into use, and an occupancy permit for a home not on sewer cannot be finalized until that inspection is approved.41 Soils are a real constraint: only 15.1% of Montezuma County's land has soil without severe limitations for a conventional septic drain field, so budget for a site evaluation and possibly an engineered system.42 Private well permits could not be confirmed at the county level; Colorado requires a state well permit for every new well that diverts groundwater.43

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

We could not confirm a Montezuma County rule for living in an RV on private land. The county's RV rules cover RV and camper parks, a commercial use with lots of at least 1,000 square feet, not a single RV on your own parcel.4445 Ask Planning & Zoning before you park one for living.17

Colorado's Division of Housing approves factory-built tiny homes for long-term living statewide, but each unit must still meet local zoning where it is placed.12 A certified manufactured home can go anywhere county zoning allows, once it meets Colorado's Wind Zone 1 and Thermal Zone 3 installation standards.11 Whatever you live in, a home not on public sewer still needs the Environmental Health septic permit, and the structure needs its own county address.1815

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

  1. Confirm your parcel's zone and minimum lot size under the Land Use Code, and check any subdivision covenants.34
  2. Apply through the county's online permit center for your county address and, if needed, a driveway permit.621
  3. If the lot is not on sewer, apply for the septic permit through Environmental Health at (970) 564-4763, with engineered plans; the site evaluation can affect where you can build.188
  4. Design to the setbacks: at least 30 feet from a county road right-of-way and every lot line, and 100 feet from the stream bank in the Dolores River Valley.9
  5. If the property is in a mapped floodplain, submit proof of compliance with the floodplain resolution and get a floodplain development permit.20
  6. Build. The county will not inspect residential construction or issue a certificate of occupancy, so hire a private inspector if you want one.142

What should you check before buying land in Montezuma County?

Ask Planning & Zoning which agricultural or residential zone covers the parcel, since the Land Use Code sets zones by parcel size and that determines what you can build and how far back it must sit.317 Only 15.1% of the county's soil has no severe limitation for a conventional septic drain field, so get a site evaluation before you assume a standard system will work.42 If the parcel is in the Dolores River Valley, expect the larger lot minimum and the stream-bank setback.469

This is dry, remote country: the county averages just 15.9 inches of precipitation a year and sees severe drought in 34.1% of years, and about 39.6% of the county is federal land, which can limit road access and expansion near some private parcels.474849 Farmland has sold for a typical $1,736 an acre, while the typical home value is about $420,181.5051 Property taxes are low: an effective rate near 0.3% and a median annual bill around $915.5253 The nearest city of 100,000 or more is about 177 miles away, so factor in longer supply runs and emergency-response times before you commit.54

Watch-outs

  • The setback numbers come from the county's general building-information page, not a parcel-specific zoning review; confirm with Planning & Zoning before you design around them.917
  • The published planning fee schedule is dated 2017, so confirm current amounts before budgeting.1017
  • Whether Colorado's 2025 accessory-dwelling-unit law reaches any part of unincorporated Montezuma County is unconfirmed; ask Planning & Zoning.1755
  • Because Montezuma County does not enforce residential building codes or inspect construction, any inspection is on you; a lender or future buyer may still expect one.14

Sources

  1. montezumacounty.gov, quoted and re-checked
  2. Building in Montezuma County, quoted and re-checked
  3. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  4. Resolution No. 21-2020: The Montezuma County Land Use Code, quoted and re-checked
  5. Environmental Health, quoted and re-checked
  6. Building in Montezuma County, quoted and re-checked
  7. Building in Montezuma County, quoted and re-checked
  8. Montezuma County Public Health Department On-Site Wastewater Treatment System Regulations, quoted and re-checked
  9. Building in Montezuma County, quoted and re-checked
  10. Montezuma County Planning & Zoning Fee Schedule, quoted and re-checked
  11. Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
  12. Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
  13. Colorado law on county zoning and building authority
  14. Building in Montezuma County, quoted and re-checked
  15. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  16. Town of Dolores: Dolores Land Use Code Section 4.6 Accessory Uses (Montezuma County), quoted and re-checked
  17. Montezuma County Planning & Zoning (montezumacounty.gov)
  18. Montezuma County Environmental Health (montezumacounty.gov)
  19. Montezuma County Floodplain Administrator (montezumacounty.gov)
  20. Get Flood Ready Elevation Certificates, quoted and re-checked
  21. Building in Montezuma County, quoted and re-checked
  22. Montezuma County Planning & Zoning (building-related permits) (montezumacounty.gov)
  23. Cortez: Cortez Land Use Code 3.06 Use regulations (Montezuma County), quoted and re-checked
  24. Town of Mancos: Mancos Municipal Code Sec. 16-4-10 Accessory uses (Montezuma County), quoted and re-checked
  25. Town of Dolores: Dolores Land Use Code Section 3.6 Manufactured home park district (MHP) (Montezuma County), quoted and re-checked
  26. Montezuma County Public Health Department On-Site Wastewater Treatment System Regulations, quoted and re-checked
  27. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  28. Resolution No. 21-2020: The Montezuma County Land Use Code, quoted and re-checked
  29. Resolution No. 21-2020: The Montezuma County Land Use Code, quoted and re-checked
  30. Resolution No. 21-2020: The Montezuma County Land Use Code, quoted and re-checked
  31. Resolution No. 21-2020: The Montezuma County Land Use Code, quoted and re-checked
  32. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  33. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  34. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  35. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  36. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  37. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  38. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  39. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  40. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  41. Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
  42. 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
  43. Water Administration (Colorado statewide rule), quoted and re-checked
  44. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  45. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  46. Resolution No. 21-2020 The Montezuma County Land Use Code, quoted and re-checked
  47. Annual precipitation: Bolthole Index county data
  48. Share of years in severe drought: Bolthole Index county data
  49. Federal land share: Bolthole Index county data
  50. Farmland value per acre (USDA census): Bolthole Index county data
  51. Typical home value (Zillow): Bolthole Index county data
  52. Effective property tax rate: Bolthole Index county data
  53. Median property tax bill: Bolthole Index county data
  54. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data
  55. HB24-1152 Accessory Dwelling Units (Colorado statewide rule), quoted and re-checked

Written October 16, 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

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

RuleMontezuma CountyDolores CountyLa Plata CountySan Miguel CountySan Juan CountyOuray CountyMontrose County
Building permitNot requiredNot requiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Env. Health Dept.Dolores CountyCounty Public HealthCounty OWTSCounty Env. HealthCounty Land Use Dept.County Board of Health

County locator

Montezuma County in Colorado

65
County map
Montezuma County highlighted among the Colorado counties · colored by Index score

How Montezuma County scores

Seclusion77100% ev.
Self-Sufficiency46100% ev.
Admin Boringness4390% ev.
Durability45100% ev.
Property Autonomy75100% ev.
Carry Cost85100% 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 →

$420kTypical home
0.3%Property tax
$1,736Land / acre
15.9"Annual rain
34.1% of yrsSevere drought
6.8 / yr (+6.1)Mid-century 100°F days
29.5 daysMid-century dry spell
0.95" (+4.5%)Mid-century 1-day rain
1.17×Wildfire change factor
100%Forward climate coverage
$1,231Home insurance / yr
1.7% / yrInsurance growth
0.35%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
130,336People within 2 hr
19,562Radius comparison (15 mi)
13.1People / sq mi
39.6%Federal land
56.6%Land at 15% slope or less
15.1%Soils rated "not limited" for septic (strict USDA rating)
175,733 acWorkable land screen
37.8%Wooded land
24.6 tonsBiomass / forest ac
49.1°FAvg temp

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Cities and towns in Montezuma County

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

Answers from the rulebook for Montezuma County

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

Montezuma County rules

  • Building permitNot required

    Residential development in the unincorporated areas of Montezuma County.

    • The county FAQ states that the county has not adopted building codes for unincorporated areas.
    • Commercial and industrial construction is subject to a different rule requiring compliance with the Uniform Building Code, 1997 Edition.
    • State plumbing and electrical inspection or permit requirements may still apply.
    • Residential development may still require county addressing, septic, and driveway permits or approvals.
    “Montezuma County has not adopted building codes for the unincorporated areas of Montezuma County and therefore does not have building permit requirements for residential development; however, all new construction and remodeling of commercial or industrial use building and structures must be built according to the Uniform Building Code, 1997 Edition.”
  • Owner-builder exemption · follows from the permit answerNot needed

    Unincorporated Montezuma County: no county building permit is required, so there is no permit to be exempt from and you may build your own home. State licensing for electrical, plumbing and HVAC work may still apply.

    • The county FAQ states that the county has not adopted building codes for unincorporated areas.
    • Commercial and industrial construction is subject to a different rule requiring compliance with the Uniform Building Code, 1997 Edition.
    “Montezuma County has not adopted building codes for the unincorporated areas of Montezuma County and therefore does not have building permit requirements for residential development; however, all new construction and remodeling of commercial or industrial use building and structures must be built according to the Uniform Building Code, 1997 Edition.”
  • Building code adoptedPartial

    Construction in unincorporated Montezuma County.

    • Residential building codes are not enforced by the county; commercial and industrial construction is subject to the stated code standard.
    “Commercial and Industrial buildings and structures: all new construction and remodeling ARE required to be in compliance with Uniform Building Code 1997 or greater.”
  • InspectionsLimited

    Residential construction in unincorporated Montezuma County.

    • The county does not enforce residential building codes; private qualified inspection may be obtained.
    “While we do not enforce building codes for residential construction, you may hire a qualified inspector for your construction project.”
  • Certificate of occupancyNot required

    County-issued certificates of occupancy in unincorporated Montezuma County.

    • This does not establish whether a municipality or another authority requires an occupancy approval.
    “Certificate of Occupancy: Montezuma County does not issue Certificates of Occupancy nor do we have a building department.”
  • County-wide zoningPresent (with conditions)

    Land-use zoning and subdivision controls in unincorporated Montezuma County.

    • The Land Use Code applies to unincorporated areas; incorporated municipalities have separate authorities and rules.
    “This Land Use Code shall apply to all land in the unincorporated areas of Montezuma County.”
  • Local zoningPresent (with conditions)

    Land-use zoning and related development standards in unincorporated Montezuma County.

    • The Land Use Code combines a zoning system with a complementary High Impact Commercial or Industrial Permitting system.
    • Threshold Standards apply unless a different threshold is established in an applicable zoning category or other development approval under the regulations.
    • The county zoning system is described as landowner-initiated.
    “This objective is addressed by a zoning system and a complementary High Impact Commercial or Industrial Permitting system, which are combined in this Land Use Code.”
  • Zoning districtsPublished (with conditions)

    Montezuma County zoning designations and zoning map for unincorporated areas.

    • The county Land Use Code describes a landowner-initiated zoning system with agricultural and residential zones.
    • Applicable standards may vary by zoning category, parcel size, and other development approvals.
    • The county separately publishes or provides a County Zoning Map through its GIS Office.
    “You can download a copy of the following PDF Maps: (these may be several megabytes)”
  • Minimum lot sizeSpecified

    Residential development and subdivision review in unincorporated Montezuma County.

    • The net 3-acre lot size excludes Official Green Signed County Road rights-of-way.
    • The developer must demonstrate a buildable/developable footprint on each lot.
    • Each lot must comply with Montezuma County Road and Bridge Standards, as amended.
    • Within the Dolores River Valley, residential development requires a minimum 10-acre lot with at least 30 percent developable land, including slopes less than 30 degrees capable of supporting an engineer-designed septic system.
    • Residential development requires approval of septic system location and type, driveway access design and location, and assignment of a County address.
    • Compliance with General Design Guidelines and, as appropriate, agricultural-land design guidelines is required.

    minimum lot size outside Dolores River Valley: 3 acres (net size excludes Official Green Signed County Road rights-of-way) · minimum lot size within Dolores River Valley: 10 acres (must include at least 30 percent developable land)

    “B. Within the Dolores River Valley the minimum lot size for residential development must be ten (10) acres. An allowable 10-acre lot must include a minimum of 30 percent developable land.”
    14 more reviewed findings on this topic
    • District specific (with conditions) — Residential development under the Montezuma County Land Use Code in unincorporated areas, including the Dolores River Valley.
      “The minimum lot size for residential development must be three (3) acres. The net 3-acre lot size shall not include Official Green Signed County Road rights-of-way. Developer shall demonstrate a buildable/developable footprint area on each lot. [...] Within the Dolores River Valley the minimum lot size for residential development must be ten (10) acres. An allowable 10-acre lot must include a minimum of 30 percent developable land.”
    • Specified — All development in unincorporated Montezuma County unless a different threshold applies through zoning or another development approval.
      “The following represent the Threshold Standards for all development in the unincorporated areas of Montezuma County. They apply unless a different Threshold is established in an applicable zoning category or other development approval under these regulations. [...] Minimum lot size | ♦ 3 acres♦ 10 acres within the Dolores River Valley”
    • District specific (with conditions) — A-80+ Large Scale Agricultural Use zoning district in unincorporated Montezuma County.
      “3304 A-80+: Large Scale Agricultural Use [...] 3304.2 Minimum Lot Size: 80 acres”
    • District specific (with conditions) — AGZ Agricultural Use zoning district in unincorporated Montezuma County.
      “3305 AGZ: Agricultural Use [...] 3305.2 Minimum Lot Size: 20 acres.”
    • District specific (with conditions) — A/R 35+ Large Scale Agricultural and Residential zoning district in unincorporated Montezuma County.
      “3306 A/R 35+: Large Scale Agricultural and Residential Use [...] 3306.2 Minimum Lot Size: 35 acres”
    • District specific (with conditions) — A/R 10-34 Medium Scale Agricultural and Residential zoning district in unincorporated Montezuma County.
      “3307.2 Minimum Lot Size: 10 acres A. Within the Dolores River Valley an allowable 10-acre lot must include a minimum of 30 percent developable land.”
    • District specific (with conditions) — A/R 3-9 Small Scale Agricultural and Residential zoning district in unincorporated Montezuma County.
      “3308.2 Minimum Lot size: 3 acres A. This zoning is not allowable within the Dolores River Valley.”
    • District specific (with conditions) — R-3 Rural Residential Use zoning district in unincorporated Montezuma County.
      “3309.2 Minimum Lot Size: 3 acres A. This zoning is not allowable within the Dolores River Valley.”
    • Specified — Residential development in unincorporated Montezuma County outside the Dolores River Valley, subject to applicable zoning and development approvals.
      “The minimum lot size for residential development must be three (3) acres.”
    • District specific (with conditions) — Residential development within the Dolores River Valley in unincorporated Montezuma County.
      “Within the Dolores River Valley the minimum lot size for residential development must be ten (10) acres.”
    • District specific (with conditions) — A/R 3-9 Small Scale Agricultural and Residential Use zoning in unincorporated Montezuma County.
      “3308.2 Minimum Lot size: 3 acres A. This zoning is not allowable within the Dolores River Valley.”
    • District specific (with conditions) — R-3 Rural Residential Use zoning in unincorporated Montezuma County.
      “3309.2 Minimum Lot Size: 3 acres A. This zoning is not allowable within the Dolores River Valley.”
    • District specific (with conditions) — Residential home sites created through a Cluster Incentive Planned Unit Development under A/R 35+ zoning in unincorporated Montezuma County.
      “lots less than three acres may be created in the interest of preserving agricultural land or common open space.”
    • District specific (with conditions) — RV/Camper Park lots or RV lots in a mobile home park in unincorporated Montezuma County.
      “RV/Camper Park lots, or such lots in a mobile home park, may be a minimum of 1,000 square feet with a maximum density of 25 units per gross acre.”
  • SetbacksSpecified

    Dwellings, fences, barns, garages, auxiliary structures, and development in unincorporated Montezuma County.

    • New fences require 30 feet from the centerline of county roads.
    • Dwellings require 30 feet from county-road rights-of-way, 30 feet from service-road or subdivision-street rights-of-way, and 30 feet from lot lines.
    • Barns, garages, and auxiliary structures require 30 feet from county-road rights-of-way and property lines not adjacent to roads and highways.
    • Dolores River Valley construction, including individual sewage disposal systems, requires 100 feet from the existing stream bank.

    fence setback: >= 30 feet (from county-road centerline) · dwelling setback: >= 30 feet (from specified rights-of-way and lot lines) · Dolores River Valley setback: >= 100 feet (from existing stream bank; applies to new commercial and residential construction and ISDS)

    “Setbacks for dwellings are to be a minimum of 30 feet from County Road rights-of-way, a minimum of 30 feet from the right-of-way of service roads or streets within a platted subdivision, and 30 feet from lot lines.”
  • Lot coverageDistrict specific (with conditions)

    Building footprint standards in county zoning districts.

    • The cited zoning sections identify the 12 percent maximum as a threshold standard; other districts and development approvals may have different standards.

    maximum building footprint: <= 12 percent of lot size (applies in cited zoning sections)

    “Building footprint: Maximum building footprint overall shall not exceed 12 percent of the lot size.”
  • Building heightDistrict specific (with conditions)

    Building-height standards in county zoning districts.

    • The code provides 35-foot maximums in some residential districts and 45-foot maximums in larger agricultural/residential districts; the applicable district and threshold standards control.

    maximum building height: <= 35 feet (A/R 10-34, A/R 3-9, and R-3 examples) · maximum building height: <= 45 feet (A-80+, A/R 20-34, and A/R 35+ examples)

    “A. Maximum building height 35’ B. Building footprint: Maximum building footprint overall shall not exceed 12 percent of the lot size.”
  • Living in an RVLimited

    RV/Camper Park lots, or RV lots in a mobile home park, under the Montezuma County Land Use Code.

    • The rule applies to RV/Camper Parks and RV lots in mobile home parks, not to general RV occupancy on every private parcel.
    • RV/Camper Park lots may be at least 1,000 square feet and density may not exceed 25 units per gross acre.
    • RV/Camper Parks and lots must meet the applicable park standards, including sanitary-facility requirements for dependent mobile homes.
    • The Land Use Code identifies RV Parks, except park models, as a commercial use by right subject to the Code's certification and other-agency permit requirements.
    • Septic, water, access, and other applicable requirements remain applicable.

    minimum RV/Camper Park lot area: >= 1000 square feet (RV/Camper Park lots or such lots in a mobile home park.) · maximum density: <= 25 units per gross acre (RV/Camper Parks and lots.)

    “RV/Camper Park lots, or such lots in a mobile home park, may be a minimum of 1,000 square feet with a maximum density of 25 units per gross acre.”
  • Who permits septicCounty

    On-site wastewater system application review and permitting administered by Montezuma County Environmental Health.

    • County regulations operate in addition to Colorado Regulation 43.
    “The team also reviews all septic system applications and awards permits.”
  • Septic permitRequired

    On-site wastewater treatment systems with design capacity less than or equal to 2,000 gallons per day in unincorporated Montezuma County and municipalities within the county that do not maintain their own public health agency.

    • Prior to installing, altering, expanding, or repairing an OWTS, the applicant must obtain a permit from the Montezuma County Public Health Department.
    • The application must be complete and include the information required by Regulation 43 section 43.4(B)(3), engineered plans, and road impact fees if required.
    • The regulations apply to all OWTS in unincorporated areas and to municipal corporations within the county, except municipal corporations that maintain their own public health agency.
    • An OWTS permit must not be issued where the property is in a municipality or special district providing public sewer service, unless sewer service is infeasible as determined by the municipality or special district, or the permit is otherwise authorized by that municipality or special district.
    • An OWTS permit expires one year after issuance if construction has not commenced; a new application and engineering plans may be required.
    • Any change in plans or specifications after issuance invalidates the permit unless MCPHD gives written approval; a new application and permit are then required.
    • The regulations incorporate Colorado Regulation 43, effective June 15, 2025, except where local options or more stringent county requirements apply.
    • The Montezuma County regulations are effective March 5, 2026.

    maximum OWTS design capacity: <= 2000 gallons per day · permit expiration if construction has not commenced: 1 year after issuance (A new application and new engineering plans may be required.)

    “Prior to installing, altering, expanding or repairing an OWTS, the applicant must obtain a permit from MCPHD. The permit application must include information identified in section 43.4(B)(3) of Regulation 43. An applicant must submit a complete application, a set of engineered plans, and have road impact fees paid, if required, prior to installing, altering, or repairing a system.”
    One more reviewed finding on this topic
    • Required — On-site wastewater treatment systems with design capacity less than or equal to 2,000 gallons per day in Montezuma County, including unincorporated areas and municipalities that do not maintain their own public health agency.
      “Prior to installing, altering, expanding or repairing an OWTS, the applicant must obtain a permit from MCPHD.”
  • Mandatory utility hookupConditional

    Development in unincorporated Montezuma County.

    • The Land Use Code states that developments must provide adequate water, sewer, and access, except where specifically exempted for temporary uses.
    • The opened source did not define all exceptions or establish that county utilities are available.
    “All developments shall be required to provide adequate water, sewer, and access, except where specifically exempted for temporary uses.”
  • Subdividing landRegulated (with conditions)

    Subdivision of property in unincorporated Montezuma County.

    • Subdivision must comply with the Land Use Code; applicable state and other agency requirements may also apply.
    “After the adoption of this Code, it shall be unlawful for any person to change the use of land or subdivide property in the unincorporated areas of Montezuma County except in compliance with this Code.”
  • Driveway accessRequired

    Driveway access for development in unincorporated Montezuma County.

    • A driveway permit is not required when access is off a red-signed, non-county-owned and maintained road.
    • Direct access from a highway requires contacting CDOT.
    “Access Permit: A driveway permit for access is required unless you access off a red signed non-county owned and maintained road”
  • Building in a floodplainRequired

    New construction or substantial improvements, including septic, in FEMA-designated floodplain areas of unincorporated Montezuma County.

    • Applicants must submit proof of compliance with Floodplain Resolution 13-2008.
    • A floodplain development permit is required if the property is within FEMA-designated floodplain.
    “Within unincorporated areas of Montezuma County, for new construction or substantial improvements, including septic, you must submit proof of compliance with the Montezuma County Floodplain Resolution 13-2008 and obtain a floodplain development permit if the property is within FEMA-designated Floodplain.”
  • Permit feesPublished (with conditions)

    Planning, zoning, subdivision, floodplain, and road-impact fee schedules administered by Montezuma County.

    • The opened fee schedule is marked Revised January 1, 2017 and also lists later school-district revisions; current fees should be confirmed with the county.

    zoning application with new development: 500 USD · high impact permit: 1000 USD (new permit) · special use permit: 500 USD (each permit) · floodplain certification: 50 USD (review fee)

    “Proposed with New Development .....................................................$500.00”
  • Permit processPublished (with conditions)

    New development permitting process in Montezuma County.

    • The county directs applicants to its online permit center and says the form assists with address, septic, and driveway permits; the applicable permit type depends on the project.
    “For all new development in Montezuma County, residential or commercial, please fill out the following form:”

Colorado rules that apply here

  • 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.”
  • 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”
  • 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;”
  • Off-grid sanitationLimited

    Sanitation for dwellings and occupied structures statewide that is provided without connection to a sewage treatment works.

    • The structure must have adequate facilities for sanitary disposal of sewage.
    • An OWTS may be used subject to applicable permit, inspection, construction, installation, alteration, and use requirements.
    • Construction of new cesspools is prohibited.
    • Septage removed during maintenance or cleaning must be disposed of at an approved site and in an approved manner.
    “No person shall construct or maintain any dwelling or other occupied structure that is not equipped with adequate facilities for the sanitary disposal of sewage.”
  • 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.”
  • 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.

  • Minimum dwelling size — Minimum dwelling size in unincorporated Montezuma County.
  • Camping on your land — Temporary camping on private land.
  • Agricultural exemption — Agricultural-development exemption from county permits or land-use standards.

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 Montezuma County, Colorado

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

Montezuma County scores 65/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and sparse surroundings — about 19,562 people within 15 miles.

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

Montezuma County does not require a county building permit for a home in unincorporated areas, and it enforces county zoning. Onsite septic is permitted by Montezuma County Environmental Health Department (OWTS under CDPHE Regulation 43 plus local regulations). 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.

How much does land cost in Montezuma County, Colorado?

Land in Montezuma County runs about $1,736 per acre, based on the latest county data.

What is the water situation in Montezuma County?

Montezuma County gets about 15.9" of rain a year, with severe drought in roughly 34.1% of years.

How remote is Montezuma County?

A typical private-land location has about 19,562 people within 15 miles and 281,253 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

How Montezuma compares in Colorado

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