Unincorporated Jackson County, Colorado requires building permits and has county zoning.12 The Jackson County Building Inspector provides building and special-use applications, a fee schedule, and on-site wastewater materials.3 County septic approval and a state well permit may also be necessary before a rural home can be occupied.45
At a glance
- Building permit
- Required for construction in unincorporated Jackson County1
- Zoning
- Yes; confirm the current district and standards with the county2
- Septic
- County approval is required for an on-site wastewater system46
- Tiny home
- Long-term use requires state approval, code compliance and local zoning approval7
- RV living
- Not confirmed; ask the Building Inspector about the parcel and proposed use23
- Owner-builder
- No county exemption was confirmed; ask the Building Inspector before planning the work83
- Well
- A new groundwater well needs a Colorado permit, subject to statutory exceptions5
Who to call
Building permits
Jackson County Building Inspector
Building permits, county plumbing permits, special-use applications, fees and on-site wastewater application materials
PO Box 1019 Walden, CO 80480
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Jackson County, Colorado?
Yes. Construction in unincorporated Jackson County requires a county building permit, and the county issues building and plumbing permits.1 The Jackson County Building Inspector lists the county's building-permit application and fee schedule online.3 The office also lists the adopted building, plumbing, mechanical, fuel-gas, energy-conservation, fire and maintenance codes, along with the electrical code.3
Electrical permits are handled by the state, while plumbing permits are handled by Jackson County.3 We could not confirm a county owner-builder exemption, a complete list of permit exceptions, inspection stages or the certificate-of-occupancy process. Ask the Building Inspector what the proposed structure requires before commissioning final plans or starting site work.83
Who issues building permits in Jackson County?
The Jackson County Building Inspector is the starting point for building permits in unincorporated Jackson County.1 The office can be reached at 970-723-4660, and its mailing address is PO Box 1019, Walden, CO 80480.3 Its official page provides a building-permit application, a special-use application, a building-permit fee schedule, snow-load information and on-site wastewater documents.3
Call before filing to confirm the current application, fees, required plans and inspection sequence because the reviewed county material does not establish those details.3 For electrical work, use the state permit process; Jackson County handles plumbing permits.3 The office page does not publish a general online permit-search portal, so ask the Building Inspector how to research an existing permit or submit records for the parcel.3
Does Jackson County have zoning?
Yes. Jackson County has county zoning, but we could not confirm a current county zoning resolution or map online.2 Ask the Building Inspector to identify the current district and standards for a specific unincorporated parcel before relying on a proposed use.23
Colorado counties may regulate building location, height, bulk, size, lot coverage, lot size, open space, density and land uses in unincorporated territory.9 We could not confirm Jackson County's current setbacks, minimum lot size, minimum dwelling size, height limit or accessory-dwelling rules. The county publishes a special-use permit application, so ask whether the proposed home, accessory structure, RV, tiny home or business needs that approval in addition to a building permit.3
How do septic permits work in Jackson County?
Jackson County Environmental Health administers permits for on-site wastewater treatment systems, and the Building Inspector page provides an ISDS permit application and the county's on-site wastewater regulations.43 Colorado law requires a permit before an on-site system is constructed, altered, installed, repaired or used where a building is not served by a sewage treatment works.6
A final inspection must occur after permitted work is completed and before the system is used.10 Building approval for a structure without sewer service also depends on the local health agency first issuing the septic permit, and occupancy approval depends on final septic approval.11 Only 8.4% of Jackson County soils avoid a severe USDA limitation rating for a conventional drain field, so evaluate septic feasibility before fixing the house site.12 Ask the county how to schedule the site review and inspection.4
Can you live in an RV or tiny home in Jackson County?
We could not confirm a current Jackson County rule for living in an RV on private land or for temporary private-land camping. Because Jackson County has zoning, ask the Building Inspector whether the parcel's district allows the proposed occupancy, whether a special-use permit is necessary and whether a time limit applies.23 The statewide camping material covers Colorado Parks and Wildlife land, not private parcels, so it does not answer the private-land question.13
Colorado-approved tiny homes may be used for long-term living, but plans must receive state approval before construction, the unit must meet applicable codes, and local zoning must allow the site.7 Manufactured homes likewise may be installed only where local zoning permits them, with state installation requirements and applicable local foundation or structural rules.14
Building a home in Jackson County: what are the steps?
- Ask the Jackson County Building Inspector to identify the parcel's zoning district, allowed residential use, setbacks and any special-use approval.23
- Establish water and wastewater feasibility; a new groundwater-diverting well requires a state permit subject to exceptions, and an on-site wastewater system requires local approval.56
- Confirm the current county code checklist, plans, fees and required inspections before filing the building-permit application.13
- Obtain state electrical permits and county plumbing permits where the project includes that work.3
- Complete permitted septic construction and obtain the final inspection before using the system or receiving occupancy approval.10
- If the driveway connects directly to a state highway, obtain a Colorado Department of Transportation access permit.15
What should you check before buying land in Jackson County?
Start with zoning, legal access, water, septic feasibility and floodplain status before treating vacant land as buildable.25616 A direct residential driveway onto a Colorado state highway requires a state access permit.15 Development in a regulated floodplain must meet local rules that equal or exceed federal minimum design and construction criteria.16
Water and septic deserve early investigation: Jackson County receives about 24 inches of precipitation annually, and only 8.4% of its soils avoid a severe conventional-drain-field limitation rating.1712 The county's effective property-tax rate is about 0.2%, with a median annual property-tax bill of $513.1819 Ask the Building Inspector to confirm the current zoning map, setbacks and county-road access requirements for the exact parcel.23
Watch-outs
- Only 8.4% of Jackson County soils avoid a severe limitation rating for a conventional septic drain field, so establish a feasible wastewater design early.12
- A building permit for a property without sewer service cannot be approved until the local health agency issues the septic permit.11
- We could not confirm current private-land RV occupancy rules, setbacks or minimum dwelling size; ask the Jackson County Building Inspector about the parcel before buying or building.23
Sources
- Jackson County - Building Inspector (2026 county census)
- Jackson County Zoning Resolution - University of Colorado Law Archive (2026 county census)
- Jackson County Building Inspector (jacksoncounty.colorado.gov)
- Colorado CDPHE - On-site Wastewater Treatment Systems (2026 county census)
- Water Administration (Colorado statewide rule), quoted and re-checked
- Title 25 - Public Health and Environment - 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
- (2026 county census)
- Colorado Revised Statutes 2025 Title 30 Government - County (Colorado statewide rule), 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 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
- Access Permits | Frequently Asked Questions (Colorado statewide rule), quoted and re-checked
- SB24-179 Floodplain Management Program (Colorado statewide rule), quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 29, 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.