Off-Grid Living in Fremont County, Colorado

Understanding Your Jurisdiction First

The single most important step before any off-grid plan in Fremont County is determining whether your property falls under county or city jurisdiction. Fremont County's Zoning Resolution and Building Department apply only to unincorporated areas. If your land lies within the corporate boundaries of Cañon City, Florence, Coal Creek, Brookside, Rockvale, or Williamsburg, you fall under that city's rules instead - and each city operates its own building department with potentially different standards.

I recommend starting by contacting the Fremont County Assessor's office with your property address to confirm jurisdiction. Once you know whether you're in the county or a city, direct all subsequent regulatory questions to the relevant authority. This single clarification will save months of confusion later.

Zoning: What You Can Build and Where

Fremont County has adopted a countywide Zoning Resolution that divides unincorporated land into districts with different permitted uses. The county had proposed updated zoning regulations during my research; I strongly recommend confirming the final status of these updates directly with the Fremont County Planning and Zoning office before committing to a property or design.

For off-grid purposes, your zoning district determines whether you can legally place a dwelling on your land, whether you can operate certain agricultural or energy systems, and what setbacks and lot-coverage restrictions apply. Rural and agricultural districts typically offer more flexibility than residential or commercial zones.

Practical step: Obtain your property's current zoning designation and request a copy of the applicable district's use table from Fremont County Planning and Zoning. Review the permitted, conditionally permitted, and prohibited uses. If your planned off-grid setup (such as a small cabin plus solar array) requires a conditional-use permit, budget 60-90 days and associated fees for that process.

Dwellings: Tiny Homes, Accessory Units, and Wheels

Tiny houses built on permanent foundations may qualify as accessory dwelling units (ADUs) in appropriate unincorporated zones if they meet International Residential Code standards. However, minimum square footage for ADUs varies by zoning district - there is no countywide floor area minimum. A dwelling legal in one zone may be undersized for another.

Tiny Houses on Wheels (THOWs) face a critical restriction: Colorado state law classifies them as recreational vehicles, not permanent dwellings. This means THOWs are subject to time-limit restrictions at the state level, and enforcement is local. Fremont County follows the state baseline, so living year-round in a THOW on Fremont County land is not reliably permitted. If a THOW is central to your plan, contact the Fremont County Building Department to ask explicitly whether your specific county or city permits permanent THOW residence; the answer is likely no, but you need direct confirmation before purchasing.

Practical step: If you plan a permanent tiny house on your land, contact Fremont County Planning and Zoning with your property address and ask: 1. What is the minimum dwelling size allowed in your zone? 2. Is an accessory dwelling unit permitted on your lot size? 3. What setback, lot-coverage, and design standards apply?

Get these answers in writing. If you plan a THOW, ask the Building Department whether permanent residence is allowed; expect resistance, but confirm it in writing.

Building Codes: The 2018 Standards Apply

Fremont County's Building Department enforces the 2018 editions of the International Building Code (IBC), International Residential Code (IRC), and International Energy Conservation Code (IECC), as amended by the county's Resolution No. 60, Series of 2020. This applies strictly to unincorporated areas. Any construction - cabin, tiny home, outbuilding, or solar structure - must meet these standards in county jurisdiction.

The IECC amendments in Resolution No. 60 mean that even an off-grid cabin must meet updated energy-efficiency requirements (insulation, air sealing, window performance). This is not negotiable and can affect design and material costs.

Incorporated cities enforce their own codes, which may differ. If your property is in Cañon City, Florence, or another city, contact that city's building department for its specific code version and amendments.

Practical step: Before finalizing cabin or structure design, request a copy of Resolution No. 60 from the Fremont County Building Department and review the IECC amendments specific to residential construction. If you are hiring a designer or contractor, ensure they are familiar with these amendments. Plan for additional insulation or passive heating/cooling to meet the updated standards.

Septic Systems and Waste Disposal: Permits Required, Privies Banned

Any dwelling with a waste-disposal system requires a Fremont County permit. The Fremont County Board of Health has explicitly prohibited pit privies (traditional outhouses), so that option is off the table.

Septic systems: These are the baseline approved method. To install a septic system, you must: 1. Contact the Fremont County Health Department to request a septic permit application. 2. Have your soil tested by a certified professional to determine percolation rate and soil suitability. 3. Submit design plans (usually prepared by a licensed engineer) showing tank size, drain field, and setbacks from wells, property lines, and water bodies. 4. Obtain the permit before installation. 5. Schedule inspections during and after installation.

Colorado Department of Public Health and Environment Regulation 43 sets baseline standards statewide, and Fremont County Health may enforce stricter local standards. Budget 4-6 weeks for the permitting process and $2,000 - $5,000+ for system design and installation.

Composting toilets: I could not confirm the county's stance on composting toilets during my research. Colorado state law permits composting toilets only in locations where a conventional septic system cannot be installed, and any approved unit must carry NSF certification or equivalent. This is a critical gap. Before relying on composting, contact the Fremont County Health Department directly and ask whether composting toilets are permitted on your property type. Request the answer in writing, specifying any certification or testing requirements.

Practical step: If you are considering off-grid waste disposal, obtain a septic permit application from the Health Department now (before purchase, if possible). Have a soil test completed on your proposed building site. If septic is infeasible, formally ask the Health Department about composting-toilet eligibility in writing, and request NSF-certified product recommendations.

Greywater Reuse: Unconfirmed and Needs Local Clarification

I found no county regulation explicitly permitting or prohibiting greywater reuse in Fremont County. This does not mean greywater is allowed - it means the county has not published a clear rule. Colorado state law authorizes local greywater programs, but they must be adopted by the county and meet or exceed state standards. If Fremont County has not adopted such a program, greywater must be treated as sewage and disposed of through the approved waste system (septic or sewer).

For off-grid purposes, this matters greatly. If you plan to reuse greywater from sinks, showers, or washing machines to irrigate gardens or flush toilets, you need explicit county permission. Without it, greywater must go into your septic system, adding load and cost.

Practical step: Contact the Fremont County Planning and Zoning office or Health Department and ask: 1. Does Fremont County have an adopted greywater reuse program? 2. If yes, what are the rules and design requirements? 3. If no, are there any exceptions or pending regulations?

Request the answer in writing. If greywater reuse is not permitted, proceed with your septic design assuming all household wastewater (including greywater) enters the system. If permitted, request design guidance or a list of approved systems.

Rainwater Harvesting: Likely Restricted, Must Confirm

I found no Fremont County regulation explicitly addressing rainwater harvesting, but Colorado state law applies here. Colorado's Doctrine of Prior Appropriation strictly limits rainwater collection. For most households, the statewide baseline allows collection of no more than 110 gallons total across two rain barrels. If your property has a Division of Water Resources exempt residential well, you may have broader - but still limited - on-site use rights.

This restriction exists because Colorado water law treats all water, including rainfall, as a shared resource allocated to senior rights holders. Fremont County does not supersede this; it enforces it.

For off-grid systems relying partly on rainwater, expect to capture only modest volumes. A single roof cannot justify extensive catchment infrastructure.

Practical step: Contact the Fremont County Building Department or Division of Water Resources and ask: 1. What is the rainwater-harvesting limit on your property type and lot size? 2. If your property qualifies for an exempt residential well, do you have expanded rainwater rights for on-site use? 3. Are there approved tank sizes or system designs?

If you plan rainwater as part of your off-grid water strategy, this answer is essential. Expect the limit to be modest (110 gallons or equivalent under state law).

Wells and Water Supply: Permits and Proof Required

Any property with indoor plumbing must provide proof of an acceptable water source: either connection to a public water district or a Colorado Division of Water Resources well permit. This is a Fremont County requirement enforced at building permit issuance.

For off-grid households, a private well is the standard approach. Here's how it works:

Exempt domestic wells: Properties of 35 acres or larger typically qualify for a "exempt domestic well" permit from the Colorado Division of Water Resources. This permits limited water use for household indoor use, livestock watering, and limited irrigation. The application process is straightforward but requires proof of land ownership and acreage.

Smaller lots: Properties under 35 acres may still qualify for a well permit, but with stricter use restrictions (household indoor use only, no livestock or irrigation). The process is the same but the allocation is smaller.

Application process: 1. Obtain a well-drilling application from the Colorado Division of Water Resources or a local water court. 2. Hire a licensed well driller to drill the well and install a pump. 3. Submit the application with proof of ownership, property acreage, and proposed use. 4. Wait for approval (typically 4-8 weeks if uncontested). 5. Provide proof of the well permit to the Fremont County Building Department when applying for a building permit.

If your property is in an incorporated city (Cañon City, Florence, etc.), that city may require connection to municipal water instead. Check with the city building department first.

Practical step: Before purchasing land, verify whether it qualifies for an exempt domestic well or if larger acreage is needed. If purchasing, make the transaction contingent on well-permit approval. Contact the Colorado Division of Water Resources with your property legal description to request a preliminary eligibility assessment. Once you own the land, hire a licensed well driller to identify the best drilling location and depth estimate. Apply for the well permit early - before finalizing your building design.

Off-Grid Power and Utility Disconnection: Critical Ambiguity

I found no explicit Fremont County rule permitting or prohibiting disconnection from electrical utilities, nor any requirement to maintain electrical service. This is a gap I cannot fill without direct contact with the county.

In many Colorado counties, off-grid power (solar, wind, battery storage) is legally viable on rural land, but permitting varies. Some counties require solar installations to meet electrical codes and inspections; others do not. Some explicitly permit utility disconnection; others are silent.

Fremont County's silence on this issue is problematic. The practical reality is that off-grid power is increasingly common in rural Colorado, but without explicit county permission, you are operating in a gray zone. If you disconnect from electrical service, the county may later require reconnection if building standards or safety codes are invoked.

Practical step: This is non-negotiable. Contact the Fremont County Building Department directly and ask: 1. Is off-grid power (solar, wind, battery) permitted on unincorporated residential land? 2. Are there electrical codes or inspections required for off-grid systems? 3. Is there a minimum utility-connection requirement, or may I disconnect from the grid entirely?

Request written clarification on all three questions. If the answer to question 3 is yes (you may disconnect), request that in writing. If the answer is no or ambiguous, you have a real compliance risk and should plan accordingly - either connect to the grid despite off-grid intent, or proceed knowing you may face a requirement to reconnect later.

If your property is in an incorporated city, ask that city the same questions.

Statewide Context: Why Lot Size and Water Rights Matter

Fremont County sits within Colorado's broader regulatory framework, and two statewide rules directly affect off-grid feasibility:

35-acre subdivision threshold: Colorado state law limits subdivision of parcels under 35 acres. This means most off-grid buyers target 35-acre tracts or larger to avoid subdivision restrictions and to qualify for exempt domestic well permits. If your target property is smaller, verify that it has already been platted or that the owner holds clear title to an unsubdivided parcel. Contact the Fremont County Assessor or Clerk and Recorder to confirm.

Water law and exempt wells: The Division of Water Resources administers well permits statewide. Fremont County does not override these permits; it enforces them. The 35-acre rule applies here: larger properties typically get exempt domestic wells with broader use rights, while smaller lots get restricted household-only wells. This directly affects your water and irrigation options.

Sequence: How to Proceed

1. Confirm jurisdiction. Is your property in unincorporated Fremont County or a city? 2. Get the zoning. Obtain your property's zone and allowed uses from Planning and Zoning. 3. Confirm dwelling type. Ask whether a tiny home or ADU is permitted in your zone, and get square-footage minimums in writing. 4. Test the soil. Have a soil test done to assess septic feasibility. 5. Check well eligibility. Contact the Division of Water Resources for exempt-well qualification. 6. Clarify grey and rainwater. Ask Planning and Zoning about greywater and rainwater limits in writing. 7. Ask about utilities and power. Get written answers on off-grid power and utility disconnection. 8. Request building code amendments. Obtain Resolution No. 60 and review IECC requirements. 9. Design and permit. Once you have answers to all seven questions, begin design and formal permitting.

This sequence takes 2-3 months but avoids costly mistakes later.

When to Contact Which Office

• Fremont County Planning and Zoning: Zoning, land use, greywater, rainwater, utility disconnection, ADU eligibility.
• Fremont County Building Department: Building codes, IECC amendments, off-grid power, well permit requirements, utility connection requirements.
• Fremont County Health Department: Septic permits, composting-toilet eligibility, soil testing requirements.
• Colorado Division of Water Resources: Well permits, exempt-well eligibility, rainwater-harvest limits.
• City building/planning departments (if applicable): Everything above, if your property is in Cañon City, Florence, Coal Creek, Brookside, Rockvale, or Williamsburg.

Fremont County's regulatory structure is clear, but gaps remain. The county has not published rules on greywater, rainwater, or off-grid power. This does not mean these are banned - it means you must confirm permission locally before building. Go directly to the source, ask in writing, and keep copies of all answers. Off-grid success in Fremont County depends on clarity, not guessing.