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County building permits

Unincorporated Douglas County

How to apply for a building permit in unincorporated Douglas County, Colorado. Permit authority, application steps, fees, and inspection requirements.

Last verified
April 2026
On this page 6
§ 01

Permit authority

Douglas County Building Division

Street address
100 Third Street, Castle Rock, CO 80104
Coverage
Covers unincorporated areas of Douglas County, including communities such as Highlands Ranch and Roxborough Park unless a property lies inside a municipality.
Online portal
Douglas County Building Services
Douglas County Building Services online portal
§ 02

When a permit is required

Permit triggers and exempt work for Douglas County

County issues building permits for installation and alteration of buildings and structures in unincorporated areas and publishes permit categories for most residential, commercial, and trade work.

Note: No consolidated exempt-work list was clearly located on the county public summary pages reviewed.

Required documents
  • Individual PDF documents
  • Project-specific plans
  • Forms and supporting calculations or engineering as applicable
Building code
County permit page currently references 2024 IRC, 2024 IPC, 2024 IMC, and 2026 NEC.
Contractor requirements
Contractor Registration Program requires contractors applying for permits to be registered.

Source: Douglas County Building Division ↗

§ 03

Application process

Application → plan check → issuance → inspection → final

  1. 01
    Verify parcel is in unincorporated Douglas County.
  2. 02
    Select permit type from the County permit list.
  3. 03
    Request an account for online permit types or prepare PDF submittal package.
  4. 04
    Submit application and supporting documents electronically.
  5. 05
    Satisfy contractor registration and any related county, fire district, health, floodplain, or public works requirements.
  6. 06
    Pay fees and obtain issued permit.
  7. 07
    Schedule inspections online or by IVR and complete final approvals.

Source: Douglas County Building Division ↗

§ 04

Fee schedule

Douglas County building permit fees

Fee type
Amount
01
Plan check fee
Permit-type specific and not summarized on the main page reviewed.
02
Permit fee formula
Permit-type specific; verify with County Building Division.
03
Reinspection fee
Not clearly summarized on the main page reviewed.

Permit and inspection information available online 24/7.

§ 05

Required inspections

Scheduling and sequence

How to schedule
Scheduling deadline
Next business day if scheduled before 3:30 p.m.
Inspection hours
Estimated two-hour arrival window available between 8 and 9 a.m.

Typical sequence: County rough and final inspection sequence varies by project and may include footing, foundation, underground trade work, framing, rough trades, insulation, drywall, roof, driveway, energy, wildfire-defensible-space, and finals.

Rescheduling available by phone; some related inspections route through Public Works, local fire districts, Health Department, or third parties.

Source: Douglas County Building Division ↗

§ 06

Frequently asked

Common questions about unincorporated Douglas County permits

01 Do I need a building permit in unincorporated Douglas County, CO?
County issues building permits for installation and alteration of buildings and structures in unincorporated areas and publishes permit categories for most residential, commercial, and trade work.
02 How much does a building permit cost in unincorporated Douglas County, CO?
Building permit fees in unincorporated Douglas County, CO are set by the local building department and vary by project type and valuation. Fees are calculated as: Permit-type specific; verify with County Building Division.. Plan check fee: Permit-type specific and not summarized on the main page reviewed..
03 How do I apply for a building permit in unincorporated Douglas County, CO?
To apply for a building permit in unincorporated Douglas County, CO, follow these steps: 1. Verify parcel is in unincorporated Douglas County. 2. Select permit type from the County permit list. 3. Request an account for online permit types or prepare PDF submittal package. 4. Submit application and supporting documents electronically. 5. Satisfy contractor registration and any related county, fire district, health, floodplain, or public works requirements. 6. Pay fees and obtain issued permit. 7. Schedule inspections online or by IVR and complete final approvals.
04 How do I schedule a building inspection in unincorporated Douglas County, CO?
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Douglas County, CO via: County online scheduling, IVR. Next business day if scheduled before 3:30 p.m..
last verified April 2026 source Douglas County Building Division ↗ entry id permits/colorado/douglas/unincorporated

Educational reference. Permit rules and fees change — confirm current requirements directly with Douglas County Building Division before applying. Jaspector is not legal advice.