Off-Grid Living in Teller County, Colorado

I spent considerable time researching Teller County's off-grid regulations by reviewing county land-use code documents, Building Department guidance, Environmental Health permitting materials, and Colorado's statewide water and septic rules that apply throughout the county. Here's what I found, broken down by the eight core areas, with practical next steps for each.

Zoning and Land-Use Designation

Teller County operates under its own zoning code, not a statewide system. The county's Planning and Zoning Division maintains a set of zoning categories that include Rural Residential, Agricultural, and others. The first step for any off-grid plan is to confirm your parcel's current zone and what uses are permitted within it.

I could not locate a complete, detailed zoning schedule from the available sources—specifics like minimum lot size, setbacks, building height limits, and density allowances vary by zone and sometimes by district. This is normal; most Colorado counties keep full zoning schedules in their code books or GIS database rather than on the web. Contact the Teller County Planning and Zoning office directly with your property's parcel number or address, and request a zoning letter that shows your zone designation and permitted uses. This letter typically costs nothing and arrives within a few business days. You'll need it before you move forward with any design or permitting. The county zoning office can also clarify whether your parcel is in a platted or recorded subdivision, which can affect what you're allowed to build.

Permanent Dwellings and Minimum Square Footage

Teller County enforces a 400-square-foot minimum for permanent dwellings, aligning with Colorado's statewide baseline. This applies whether you're building a cabin, modular home, or other fixed structure intended for year-round occupancy.

Tiny homes on wheels (THOWs) sit in legal gray area here. If a THOW arrives on your property, county authorities may classify it as an RV rather than a dwelling. If classified as an RV, it falls under camping regulations, not residential zoning—and permanent RV residency (living full-time in what the county treats as a recreational vehicle) is generally prohibited without a county-issued Special Use Permit. A Special Use Permit is discretionary, meaning the county Planning and Zoning board reviews your application and can approve, deny, or condition the permit as it sees fit. No guarantee exists. If you're considering a THOW as your primary residence, I recommend calling the Planning office before you buy or place the unit, and asking directly: "How would my property and my THOW be classified for zoning and occupancy purposes? What would I need to do to live here year-round in a tiny home on wheels?" Get the answer in writing if possible. Otherwise, the safest off-grid path is a conventional stick-built or modular home that exceeds 400 square feet.

Building Permits and Inspections

All construction in Teller County—foundations, framing, electrical, plumbing, HVAC—requires a permit from the Teller County Building Department. The county follows standard Colorado building practices, including inspections at key stages (foundation, rough-ins, final). This is not optional, and doing work without permits can result in fines, forced remediation, or inability to secure property insurance or resale title.

Contact the Building Department before you design or contract any work. They can tell you what permits you'll need, the current fee structure (fees vary by project type and value), typical timelines, and which inspections are required. For off-grid systems specifically, the Building Department coordinates with Environmental Health for septic approvals and may work with the State Engineer's office on well permitting. Start here; they'll direct you to the other agencies if needed.

Septic Systems and Onsite Wastewater Treatment

If you're building a permanent home off-grid in Teller County, you almost certainly need a septic system. The county's Environmental Health division manages onsite wastewater treatment system (OWTS) permitting, and the state has baseline standards that the county enforces.

Here's the practical sequence: (1) Contact Environmental Health and request their OWTS permit application and checklist. (2) Have your property percolation-tested by a licensed contractor—this measures how quickly soil drains and is crucial to septic design. (3) Have a licensed engineer design a system that meets county standards and fits your site. (4) Submit the design to Environmental Health for review and approval. (5) Once the system is installed, Environmental Health conducts a state-mandated test before you can legally use it. County staff have described this as a "State test provided by Teller County," meaning the county administers the final inspection on behalf of the state. Only after passing that test can you begin operating your system.

One important gap: I found no confirmation in the available sources about whether Teller County permits composting toilets as a standalone system or as a supplement to septic. Composting toilets are addressed in Colorado's statewide septic rules (Regulation 43) as a limited alternative, usable only where a conventional septic system is infeasible and the toilet carries NSF or equivalent certification. But I cannot confirm Teller County's local stance. When you call Environmental Health, ask: "Are composting toilets permitted on my property? If yes, would a certified composting toilet replace my septic requirement, or would I need both?" This is a conversation worth having early, because if your site is marginal for septic (poor drainage, high water table, shallow bedrock), a composting toilet might be your solution—but only if the county allows it.

Greywater Reuse

This is the most uncertain area. County documents mention "Regulation 86 Greywater Resolution opt-out," which tells me that Teller County has grappled with greywater policy, but I could not locate the actual regulation, requirements, or opt-out language. Greywater—water from sinks, showers, and laundry—can reduce household water demand significantly, but Colorado's approach to it is local. State law permits greywater reuse if counties adopt a program that meets or exceeds state standards. Counties without such a program must treat all greywater as sewage.

I cannot confirm Teller County's current position. When you contact the Planning or Building Department, ask directly: "Does Teller County have an adopted local greywater reuse program? If yes, what are the requirements for a residential greywater system? If no, must all greywater be treated as sewage and enter my septic system?" Also ask whether an opt-out mechanism exists for your property. If the county does have a program, you may have options to reduce your water demand and septic load—but only if you know what the rules are.

Rainwater Harvesting

Colorado's Doctrine of Prior Appropriation is strict about rainwater. Most residential properties in Colorado may collect and store no more than 110 gallons of rainwater total across two rain barrels. This is the state baseline rule, and I found no county-specific exceptions or stricter rules in Teller County.

Why the limit? In Colorado's legal framework, precipitation belongs to no one until it's diverted—and the state engineer protects water-rights holders downstream. If you live on a property with an exempt residential well (see below), you have slightly broader rights to use captured rainwater on-site, but the restriction still applies. Plan any rainwater system with this ceiling in mind. Two standard 55-gallon barrels take you to the limit. If you need more water, you'll depend on a permitted well or water hauling. The rainwater you do collect is best used for outdoor watering, livestock, or supplemental household use; it won't solve your primary household water need in an off-grid context.

Private Wells and Water Rights

Every well drilled in Colorado, including wells on your property in Teller County, requires a permit from the Colorado State Engineer through the Division of Water Resources. This is state law, not county discretion, and applies countywide.

The process works like this: (1) Determine whether your property qualifies for an exempt residential well. Generally, parcels of 35 acres or larger qualify; smaller lots may not. Contact the State Engineer's office or a local water-rights attorney to confirm your parcel's status. (2) If you qualify for an exempt well, you can apply directly to the engineer without waiting for water to be available from senior water-rights holders. An exempt household well typically allows year-round indoor use and some irrigation or livestock watering, but not unlimited use. (3) If your parcel is smaller or doesn't qualify for an exemption, you may still drill, but you'll need to find and acquire water rights from a senior water-rights holder or prove there's unappropriated water available—a much more complex and often expensive process. (4) Once permitted, your well still needs a county building permit, and the drilling contractor must follow state well-drilling rules.

For off-grid living, the exempt residential well is your best outcome, and it typically requires 35 acres or more. If you own less land, confirm your well status with the State Engineer's office before you buy. Well depth, yield (gallons per minute), and water quality all vary widely in Teller County, so drilling is a gamble without preliminary site data. Consider hiring a water-resource consultant to evaluate your property's groundwater potential before you commit to the land or design your water system.

Utility Connection Requirements and Permanent Occupancy

Teller County's rule is clear: long-term permanent residency requires either connection to water and sewer utilities or a compliant septic system and water supply. Short-term camping without utilities is allowed—that's why RVs and seasonal cabins exist—but you cannot legally occupy a permanent dwelling off-grid without addressing both waste and water.

This means that to go fully off-grid in Teller County, you must have: (1) a state-permitted private well, and (2) a county-approved septic system (or, if the county permits it and you can't use septic, an approved composting toilet). Without both, you're dependent on utilities. The practical path is land that qualifies for an exempt well, a site suitable for septic (good drainage, depth to bedrock, distance from water bodies and property lines), and county approval of your design. If either condition fails—no well possible, or septic infeasible—you'll need to connect to public water and sewer, or pursue a Special Use Permit and hope the county approves.

Summary and Next Steps

Going off-grid in Teller County is restricted but achievable if you start with the right land and follow the sequenced permitting path: zoning confirmation, well qualification, septic site evaluation, building design, and full permitting. Each step is managed by a different agency (Planning for zoning, State Engineer for water, Environmental Health for septic, Building Department for construction), and they all must align. The greywater picture remains unclear, and you'll need direct county contact to clarify it. Rainwater is limited to 110 gallons statewide. Dwellings must be at least 400 square feet, and permanent RV residency is generally not permitted without a discretionary Special Use Permit. Build in extra time for well permitting (often 8–12 weeks at the state level) and septic design and testing (another 6–10 weeks locally). Start by contacting the Planning and Zoning office with your parcel details; they can confirm your zone and direct you to the other offices you'll need. If your property is marginal—small, poorly drained, or in a subdivision—ask the difficult questions early. An off-grid property in Teller County works best when you've confirmed each requirement before you close on the land.