Unincorporated Garfield County, Colorado requires building permits for most new construction and alterations and applies county zoning12. Glenwood Springs issues its own building permits; Glenwood Springs and Rifle set their own zoning345. Garfield County Public Health handles septic permits throughout the county except in municipalities with their own public health agency6.
At a glance
- Building permit
- Required for most new construction and alterations; listed exemptions apply1
- Building codes
- 2015 IRC, IBC and IFC; 2018 IECC; fire-district amendments may apply7
- Zoning
- County zoning applies throughout unincorporated areas; dimensional rules vary by district891011
- Septic permit
- Required for a new, repaired or altered onsite wastewater system12
- New septic permit fee
- $60012
- RV living
- May be approved temporarily for the owner-builder during active home construction13
- Tiny home
- Must meet current building code; units on wheels are restricted to RV parks14
- Owner-builder
- Limited state licensing exemption for owner repairs and maintenance; no confirmed county exemption for a new home15
Who to call
Building permits
Garfield County Building Division
Building permits and inspections for unincorporated Garfield County
108 8th Street, Suite 401, Glenwood Springs, CO 81601
Zoning
Garfield County Planning Division
Zoning, Land Use Code administration and land-use applications for unincorporated Garfield County
108 8th Street, Suite 401, Glenwood Springs, CO 81601
Septic permits
Garfield County Public Health, Environmental Health Division
Onsite wastewater treatment system permits and inspections
2014 Blake Avenue, Glenwood Springs, CO 81601
Contact details are copied from each office’s official page and were checked against it on October 12, 2026.
Off-grid gear
Going off-grid in Garfield County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Garfield County, Colorado?
Most new construction or alteration of a building or structure in unincorporated Garfield County requires a building permit1. Listed exemptions include recreational cabins, certain small detached structures, fences not over 7 feet and retaining walls not over 4 feet1. An exempt recreational cabin cannot exceed 1,200 square feet, is limited to personal, noncommercial occupancy for 6 months per calendar year and must be the only dwelling on its legally created lot; septic and electrical permits still apply16. Garfield County’s agricultural building-permit exemption covers structures designed and constructed solely to house farm implements, hay, grain, poultry, livestock or other horticultural products; public use, workplaces for processing, treating or packaging agricultural products, and indoor riding arenas with an occupancy load of 10 or more do not qualify17. Garfield County adopted the 2015 IRC, IBC and IFC and uses the 2018 IECC; local fire-district amendments may also apply7. Garfield County building-permit fees depend on total valuation and occupancy type; the county’s worksheet uses different square-foot factors for living space, garages, decks and crawl spaces1819.
Who handles Garfield County building permits, and how do you reach them?
The Garfield County Building Division handles building permits and inspections in unincorporated Garfield County; call (970) 945-8212 or visit 108 8th Street, Suite 401, Glenwood Springs, Colorado 8160120. Inside Glenwood Springs, the city handles building permits; onsite wastewater permits remain with Garfield County Public Health321. Start with the county Planning Division when an unincorporated proposal depends on a zone district, overlay or PUD, then submit the building application with two sets of construction documents and any associated zoning approvals922. County-permitted projects require applicable inspections and a final inspection for a certificate of occupancy, and Garfield County does not issue temporary certificates of occupancy2324. Colorado exempts an owner’s repair or maintenance work from a county contractor-license requirement where such a licensing program exists; that does not establish an exemption for building a new residence15. Ask the Building Division what an owner may perform or permit directly in Garfield County20.
Does Garfield County have zoning?
Garfield County zoning applies throughout unincorporated Garfield County2. Glenwood Springs and Rifle administer their own zoning; Garfield County Public Health retains septic jurisdiction except where a municipality has its own public health agency456. County maps identify floodplain, airport and drinking-water overlays, and PUD or PD properties may have specialized rules925. Minimum lot area and maximum coverage vary by district1011. An accessory building’s rear setback may be reduced to 7.5 feet, or 10 feet abutting an alley, only when Clear Vision Area standards are met; these are accessory-building reductions, not general house setbacks26. An accessory dwelling unit cannot exceed 1,200 square feet and must meet applicable approval requirements27. Short-term rentals are allowed by right in standard county districts, but a PUD must specifically allow the use28.
How do septic permits work in Garfield County?
Garfield County Public Health's Environmental Health Division administers onsite wastewater systems and can be reached at 970-625-5200 or at 2014 Blake Avenue in Glenwood Springs2930. A new installation, repair or alteration requires an application, site and soil evaluation, system design and site plan12. Listed fees are $600 for a new installation or major repair, $200 for a minor repair or alteration, and $75 for a vault-and-haul system12. An onsite-wastewater permit generally cannot be issued where a municipality or special district provides public sewer unless connection is infeasible or otherwise authorized31. Repair and alteration permits require a full-system inspection, and the designer and Public Health must be contacted at least 48 hours before final inspection and backfill32. Only about 3.5% of Garfield County soils lack severe limitations for a conventional drain field, so settle septic feasibility before fixing the house layout33.
Can you live in an RV or tiny home on your land in Garfield County?
Garfield County's building official may allow the approved owner-builder to occupy a mobile home, camper or recreational vehicle temporarily at the construction site while a permanent home is being built under a current permit13. Water supply and sanitation must be approved, and the temporary occupancy ends at final inspection or when the building permit becomes invalid13. A general rule for long-term RV living outside that construction allowance could not be confirmed; ask the Planning Division before depending on an RV as a residence34. Unincorporated Garfield County has no general minimum size for ordinary single-family dwellings, but homes must meet building code and any PUD or private development restrictions; tiny homes on wheels are restricted to RV parks35. Required mitigation units have a separate minimum of 500 finished square feet, excluding garages, carports and unfinished basements36. The county's verified manufactured-home occupancy rule covers permanent homes in the Residential-Manufactured Home Park district but does not settle placement in every other district37.
What are the steps to building a home in Garfield County?
- Ask the Planning Division to identify the parcel's zone district, overlays, minimum lot area, lot coverage and any PUD controls before commissioning plans38101134.
- Confirm legal access: each lot in a county land division generally needs at least 25 linear feet of road frontage, although certain minor subdivisions and exemptions may use an access easement; direct access to a state highway needs a state driveway permit3940. County residential parking-access driveways must be 10 feet wide for one-way access or 20 feet for two-way access, with Clear Vision Area standards; ask Planning how those standards apply to the proposed access4134.
- Determine whether public sewer connection applies; otherwise arrange the site and soil evaluation, design and site plan required with the septic permit application3112.
- Apply to the Colorado Division of Water Resources for a well permit before drilling a new groundwater well; Garfield County does not issue well permits42.
What should you check before buying land in Garfield County?
Confirm the zone district, overlays, lot-area requirement and lot-coverage limit because those controls are parcel-specific in unincorporated Garfield County91011. Test septic feasibility early because only about 3.5% of county soils lack severe limitations for a conventional drain field33. Terrain can narrow the usable building envelope: about 26.5% of Garfield County land has a slope of 15% or less44. Garfield County does not review or approve division of a tract of at least 35 acres when every resulting parcel remains at least 35 acres; other divisions remain subject to county subdivision rules45. The subdivision exemption does not settle buildability: lots must still meet applicable zoning and code provisions46. Federal land covers about 62.6% of the county, so verify recorded access instead of assuming an apparent road across public land serves the parcel47. Before drilling, obtain the state well permit and ask whether basin rules or an augmentation plan affect the parcel42.
Watch-outs
- Garfield County does not issue temporary certificates of occupancy; final-inspection items must be complete before occupancy approval24.
- Garfield County’s reduced rear setbacks of 7.5 feet, or 10 feet along an alley, apply to accessory buildings and require Clear Vision Area compliance; confirm house setbacks with Planning2634.
- Minimum lot area and maximum lot coverage vary by zone district, and overlays or PUD controls may add further limits101138.
- A tiny home on wheels is restricted to a recreational vehicle park, while temporary RV occupancy during home construction needs the building official's approval and ends with final inspection or permit invalidation1413.
Sources
- garfieldcountyco.gov, quoted and re-checked
- Garfield County Land Use and Development Code, quoted and re-checked
- Glenwood Springs: Building Permits (Garfield County), quoted and re-checked
- Glenwood Springs: Zoning (Garfield County), quoted and re-checked
- Rifle: Sec. 16-3-330. Schedule of requirements for residential districts (Garfield County), quoted and re-checked
- Onsite wastewater treatment systems (OWTS), quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Complete Land Use and Development Code, quoted and re-checked
- Garfield County Land Use and Development Code, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Onsite wastewater treatment systems (OWTS), quoted and re-checked
- Garfield County building code amendments, quoted and re-checked
- Text amendment opens way for ‘tiny homes’, quoted and re-checked
- Colorado Revised Statutes 2026, Title 30, § 30-11-125 (Colorado statewide rule), quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- FAQs – Community Development, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Garfield County Building Division (garfieldcountyco.gov)
- Glenwood Springs: Onsite wastewater treatment systems (Garfield County), quoted and re-checked
- Building permits & applications, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Planning and zoning – Community Development, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Building permits & applications, quoted and re-checked
- Short-term home rentals, quoted and re-checked
- Onsite wastewater treatment systems (OWTS), quoted and re-checked
- Garfield County Public Health, Environmental Health Division (garfieldcountyco.gov)
- garfieldcountyco.gov, quoted and re-checked
- Garfield County OWTS regulation, quoted and re-checked
- 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
- Garfield County Planning Division (garfieldcountyco.gov)
- Text amendment opens way for 'tiny homes', quoted and re-checked
- Garfield County Land Use and Development Code, quoted and re-checked
- Article 3: Zoning, quoted and re-checked
- Planning and zoning – Community Development, quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Access Permits | Frequently Asked Questions (Colorado statewide rule), quoted and re-checked
- garfieldcountyco.gov, quoted and re-checked
- Water Administration, quoted and re-checked
- Community Development, quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- FAQs – Community Development, quoted and re-checked
- Garfield County Land Use and Development Code, quoted and re-checked
- Federal land share: Bolthole Index county data
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.