Building permits, zoning and land rules in Dolores County, Colorado

Unincorporated Dolores County appears not to require a general building permit, and the county has no building department¹. Unlike most counties around it in Colorado, Dolores County does not require a county building permit¹. We could not confirm the rule for every ordinary residential project, a county residential-code edition, general stick-built-home inspections or a certificate of occupancy; the Board of County Commissioners should confirm the answer for the parcel and project⁸. State oversight is narrower: the Colorado Division of Housing handles applicable foundation, plan-review, inspection and approval functions for factory-built homes, HUD homes, modular homes and tiny homes in jurisdictions without active building departments⁶. That state role does not establish a general Dolores County residential building code⁶. The certificate-of-occupancy information we found concerns stick-built hotels, motels and on-site multifamily structures, not ordinary single-family homes⁹.

Dolores County does not list a county building department, so start with the Board of County Commissioners for land-use and subdivision questions; the office is at 409 N. Main St. in Dove Creek and answers at 970-677-2383⁸. Residential subdivisions in unincorporated Dolores County require a site-specific development plan, and applications are reviewed and approved under the county Subdivision Regulations or Mobile Home Park Standards, with a land development agreement or alternative site-specific plan possibly required¹. The Assessor's Office requires an Improvement Notice before any construction and asks that it be returned with the applicable fees; that notice is not a building permit or an inspection³. Inside the Town of Dove Creek, Dove Creek requires building permits for residential construction under its own code, and it removed the model code's exemption for one-story detached accessory structures up to 200 square feet⁴. Septic permits stay with the county Board of Health even inside town limits².

Dolores County applies development and land-use review in unincorporated areas, but we could not confirm a distinct zoning ordinance, zoning map or district schedule¹. Inside the Town of Dove Creek, the town's zoning (Article V of its land development code) applies, and conditional uses go to the Town Board⁵. The Town of Dolores land use code guides and regulates growth and development in that town, and the Town of Rico divides its land into zoning districts under its own land use code^10,11. Municipal ordinances can also reach past municipal boundaries, so confirm which jurisdiction governs the parcel¹. Numeric setbacks, minimum dwelling size, general minimum lot size, height and lot coverage could not be confirmed; ask the Commissioners and any nearby town about the parcel and proposed use. The county's agricultural exemption is narrow: it covers qualifying small confined animal-rearing operations, not agricultural buildings or development generally¹.

The Dolores County Board of Health approves onsite wastewater designs, performs inspections and issues final permits². The steps are application, site plan, soils evaluation, system design by an engineer, designer or owner, Board of Health design approval, final inspection and final permit². The county's septic page also says an engineered system is required, and adverse soils, groundwater, bedrock, slope or setback conditions may call for a professional-engineer design, so ask the Septic Inspector early who may design your system². A new-system permit costs $400, including the $23 state surcharge, and a repair or alteration permit costs $300; these are septic fees, not a general building-permit schedule². Leave the system uncovered, and request the final inspection at least 2 full days ahead; the final permit follows only if the documentation and photographs comply². USDA rates only 7.8% of mapped county soils "not limited" for a conventional drain field, so expect a site evaluation and possibly an engineered system¹². Colorado prohibits new cesspools¹³.

Dolores County's rule for residential or long-term RV occupancy on private land could not be confirmed, so ask the Board of County Commissioners before using an RV as a dwelling or while building⁸. The state rule for camping in state parks does not answer what is allowed on private property¹⁴. A Colorado-regulated tiny home intended for long-term residential occupancy requires state plan approval before construction, compliance with applicable state codes and standards, and compliance with local zoning requirements⁶. The Colorado Division of Housing performs applicable review and inspection work for tiny homes installed in jurisdictions without active building departments, including Dolores County⁶. The county's tiny-home occupancy rule and minimum dwelling size could not be confirmed; take the unit plans, foundation type, wastewater plan and parcel information to the Commissioners before purchase or placement.

1. Ask the Board of County Commissioners which land-development or subdivision review applies; residential subdivisions require a site-specific development plan and Board approval¹.

1. Confirm whether the specific home needs construction approval, since unincorporated Dolores County appears not to require a general building permit¹. Inside the Town of Dove Creek, apply to the town for a building permit instead⁴.

1. File the Improvement Notice with the Assessor's Office before construction³.

1. Demonstrate an adequate, dependable potable water supply and plan either a municipal wastewater connection or an approved onsite system for an unincorporated development or land-use change¹.

1. Apply for the septic permit, submit the site plan and soils evaluation, and obtain design approval before installation².

1. Obtain a Dolores County driveway permit for county-road access or a Colorado Department of Transportation access permit for a state-highway connection¹.

1. Leave the septic system uncovered, request inspection at least 2 full days ahead and obtain the final permit after compliant documentation and photographs².

Check wastewater feasibility first: USDA rates only 7.8% of mapped soils "not limited" for a conventional septic drain field¹². For unincorporated development or a land-use change, Dolores County requires evidence of a potable water supply adequate in quantity, quality and dependability; unless a cistern supplies the property, the documentation must also show ownership or a right to acquire or use the water rights¹. Confirm access: county-road access requires a county driveway permit, state-highway access requires a Colorado Department of Transportation permit, and private-road applicants should contact the Addressing Office^1,15. Development in a mapped special flood-hazard area of unincorporated Dolores County requires a permit before work begins, and the county's regulations say development in floodplains is discouraged¹. A new groundwater well generally needs a Colorado Division of Water Resources permit, subject to exemptions and basin-specific rules⁷. The effective property-tax rate is about 0.2%, and the median annual bill is $558; verify the parcel with the Assessor¹².