Park County, Colorado requires building permits and inspections for construction outside the towns of Fairplay and Alma12. Unincorporated Park County is zoned, and a septic permit must come before the building-permit application when a property is not served by a sewage treatment works34. Applications and inspection requests use the county's CloudPermit portal52.
At a glance
- Building permit
- Required; the county handles construction outside Fairplay and Alma12
- Zoning
- Yes in unincorporated Park County; permitted uses and setbacks depend on the zone district36
- Septic permit
- Required before applying for a building permit when the property lacks sewer service4
- RV living
- Long-term occupancy on private land is not confirmed; ask Planning and Zoning for the parcel-specific rule37
- Tiny home
- Colorado approval and local zoning compliance are required for long-term residential use8
- Minimum home size
- No county minimum square-footage requirement is stated, but building-code and zoning rules still apply9
- Owner-builder exemption
- No county permit exemption was confirmed; ask the Building Department before planning self-performed work102
- Well permit
- Required from the Colorado Division of Water Resources before drilling11
Who to call
Building permits
Park County Building Department
Building permits and building inspections for Park County except the towns of Fairplay and Alma
856 Castello Ave, P.O. Box 517, Fairplay, CO 80440
Zoning
Park County Planning and Zoning
Planning and zoning questions and development review
856 Castello Ave, P.O Box 1598, Fairplay, CO 80440
Septic permits
Park County Environmental Health
Septic permits, site evaluation and septic inspections
856 Castello Ave, P.O. Box 216, Fairplay, CO 80440
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Park County, Colorado?
Yes. Park County requires a building permit under its adopted building codes, and the Building Department handles permits and inspections throughout the county except in the towns of Fairplay and Alma12. The department covers new construction, remodels, mechanical work and demolition2. Colorado leaves most building-code and land-use decisions to local governments, so Park County's rules—not a universal statewide residential code—control an ordinary project in the county's jurisdiction12. Applications and inspection requests are made through CloudPermit, and incomplete applications are rejected52. Starting construction before the permit is issued can trigger a double fee, while at least 50% of the building-permit fee is due when plans are submitted13. Park County has not confirmed a special owner-builder exemption, so a person doing their own construction should ask the Building Department what licensing, plan and inspection requirements apply before ordering materials102.
Who issues Park County building permits, and how do you reach them?
The Park County Building Department issues building permits and performs building inspections outside Fairplay and Alma2. The office is at 856 Castello Ave, P.O. Box 517, Fairplay, CO 80440, and the phone number is 719-836-42552. Property owners, contractors, residents and businesses can submit permit applications and request inspections through CloudPermit2. Planning and Zoning is a separate Development Services contact for land-use questions at 856 Castello Ave, P.O Box 1598, Fairplay, CO 80440, and 719-836-42927. Environmental Health handles septic work from 856 Castello Ave, P.O. Box 216, Fairplay, CO 80440, and can be reached at 719-836-426714. A parcel inside Fairplay or Alma needs the applicable town office rather than Park County's Building Department because those towns are expressly excluded from the department's service area2.
Does Park County have zoning?
Yes. Unincorporated Park County is divided into zoning districts, and Planning and Zoning administers the rules that determine allowed structures and setbacks37. Park County staff checks whether a proposed use fits the parcel's zone district, whether required setbacks are met, whether the parcel is legal and whether other land-use approvals are needed6. Setbacks are district-specific, and some planned unit developments have their own setback standards, so a neighboring parcel is not a safe proxy for yours6. Park County states no minimum square-footage requirement for a residence, but it caps residential building height at 35 feet915. That absence of a minimum floor area does not waive building permits, septic approval, setbacks or use restrictions146. The countywide minimum lot size and lot-coverage limits could not be confirmed; Planning and Zoning should identify the standards for the parcel's exact district37.
How do septic permits work in Park County?
Park County Environmental Health administers onsite wastewater treatment system permits and inspections1617. For a building or structure without sewer service, obtain the septic permit before applying for the building permit; the building permit cannot be issued until the local public health agency has issued the OWTS permit418. Environmental Health also checks whether an existing septic system is adequate for the proposed project, even when the building application is not for a new house17. After permitted septic work is complete, a final inspection and local approval are required before the system is used and before occupancy approval for a building without sewer service19. Only 4.9% of Park County soils are rated without severe limitations for a conventional drain field, so make the site evaluation an early feasibility step and expect that many parcels may need a more involved design20. Off-grid living does not remove sanitation requirements: an occupied structure must have adequate sewage-disposal facilities, and a new cesspool is prohibited21.
Can you live in an RV or tiny home on land in Park County?
Park County's rule for long-term residential RV occupancy on private land could not be confirmed, so ask Planning and Zoning about the parcel, zone district and proposed duration before relying on an RV as housing37. State rules for camping in Colorado state parks do not answer whether someone may occupy an RV on private Park County land22. A tiny home intended for long-term living has a defined Colorado route: plans must be approved by the Division of Housing before construction, the unit must meet applicable state standards and local zoning, and certification attaches to the approved site8. Park County separately states that residences have no minimum square-footage requirement, but that statement alone does not approve a tiny home or override zoning, building-code and septic review931. Manufactured homes may be installed where local zoning allows, subject to state certification and local site requirements, but Park County's complete occupancy rule was not confirmed233.
Building a home in Park County: the steps, in order
- Ask Planning and Zoning to confirm the parcel's district, allowed residential use, setbacks and any separate land-use approval367.
- Confirm legal access and the driveway location; Park County requires a driveway permit before driveway construction, and direct access to a state highway also requires a Colorado Department of Transportation access permit2425.
- If the property needs a well, obtain the Colorado Division of Water Resources permit before drilling11.
- Complete the site work and obtain the Park County septic permit before filing the building-permit application414.
- Submit the building plans and application through CloudPermit; at least 50% of the building-permit fee is due at plan submittal, and incomplete applications are rejected135.
- Wait for permit issuance before starting, then request the required inspections through CloudPermit as construction advances132.
- Complete final septic inspection and approval before occupying a home that is not served by a sewage treatment works19.
What should you check before buying land in Park County?
Start with jurisdiction and zoning: verify that the parcel is outside Fairplay or Alma, then have Planning and Zoning confirm the use, setbacks and parcel legality in writing26. Treat septic feasibility as a purchase contingency because only 4.9% of county soils are rated without severe limitations for a conventional drain field20. Check slope and clearing costs too: 33.3% of Park County land is at a slope of 15% or less, while 45.4% is wooded2627. Confirm year-round legal access, the driveway-permit path and whether the approach meets a county road, private road or state highway2425. A new groundwater well needs a state permit, and water availability or permit conditions should be resolved before assuming a well is viable28. Floodplain requirements were not confirmed at the county level, so ask Planning and Zoning which flood review applies to the parcel before siting improvements37. Park County's effective property-tax rate is about 0.3%, with a median annual bill of about $1,679, but parcel-specific assessment and special-district charges still need direct review2930.
Watch-outs
- Do not begin construction before the permit is issued: Park County can charge a double fee, and at least 50% of the permit fee is due with plan submittal13.
- Only 4.9% of Park County soils are rated without severe limitations for a conventional septic drain field, so septic feasibility can decide whether a parcel works for a home20.
- Long-term RV occupancy on private land and a county-specific tiny-home occupancy rule could not be confirmed; ask Planning and Zoning before buying or moving a unit onsite37.
Sources
- Park County - Building Department (2026 county census)
- Park County Building Department (parkcountyco.gov)
- Park County - Development Guidelines (Planning & Zoning) (2026 county census)
- Development Guidelines, quoted and re-checked
- Building, quoted and re-checked
- Planning and Zoning FAQs, quoted and re-checked
- Park County Planning and Zoning (parkcountyco.gov)
- Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
- Planning and Zoning FAQs, quoted and re-checked
- (2026 county census)
- Development Guidelines, quoted and re-checked
- Land Use Planning and Regulation in Colorado (Colorado statewide rule), quoted and re-checked
- Park County Development Services Development Guide, quoted and re-checked
- Park County Environmental Health (parkcountyco.gov)
- Planning and Zoning FAQs, quoted and re-checked
- Environmental Health (2026 county census)
- Environmental Health, quoted and re-checked
- Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
- Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Title 25 - Public Health and Environment - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
- Title 33 - Parks and Wildlife - Colorado Revised Statutes 2024 (Colorado statewide rule), quoted and re-checked
- Consumers of Manufactured Homes and Tiny Homes - HUD (Colorado statewide rule), quoted and re-checked
- Development Guidelines, quoted and re-checked
- Access Permits | Frequently Asked Questions (Colorado statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Water Administration (Colorado statewide rule), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 27, 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.