Accessory Dwelling Unit (ADU) Permit in Dacono, Colorado

Dacono requires an accessory dwelling unit (adu) permit for: ADUs are permitted and inspected under the general 2024 IRC/IBC framework as locally adopted; no dedicated ADU-specific SAFEbuilt homeowner guide was found (unlike Re-Roof, Home Additions, Accessory Structures, etc., which each have their own guide); An 'ADU Certification of Exception Inspection' ($100, includes two inspections) is a distinct, separately-fee'd inspection type per the 2026 Fee Schedule, suggesting a defined municipal process exists for ADU compliance certification, though the underlying ordinance/standard was not located during this review; Zoning compliance (setbacks, lot coverage, use-by-zone-district) must be separately confirmed with the Community Development Department / Zoning Map, as ADU siting is a zoning matter distinct from building-permit plan review. If your project isn't listed, confirm with City of Dacono Community Development Department (building permitting/inspections administered by SAFEbuilt, Inc., the City's contracted third-party building department partner) at 303-833-2317 before starting work.

In Dacono, the published Accessory Dwelling Unit (ADU) Certification of Exception Inspection is: $100.00. Additional published fees: Building Permit Fee — Computed from ICC Building Valuation Data / project valuation, same general method as other new construction/additions; Plan Review Fee — 65% of Permit Fee. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Dacono does not publish a plan-review timeline for this permit. Contact City of Dacono Community Development Department (building permitting/inspections administered by SAFEbuilt, Inc., the City's contracted third-party building department partner) at 303-833-2317 for current turnaround.

You'll need: Building Permit Application. See the required-documents checklist on this page for details on each.

Dacono requires 3 inspection(s) for an accessory dwelling unit (adu) permit, in order: Foundation / Framing / Rough Trades, ADU Certification of Exception Inspection, Final Inspection. Schedule each through City of Dacono Community Development Department (building permitting/inspections administered by SAFEbuilt, Inc., the City's contracted third-party building department partner) (303-833-2317).

Apply through City of Dacono Community Development Department (building permitting/inspections administered by SAFEbuilt, Inc., the City's contracted third-party building department partner) at 512 Cherry Avenue, Dacono, CO 80514. Phone: 303-833-2317, email: rchavez@daconoco.gov. Office hours: City Hall main line 303-833-2317. Building/code questions directed to SAFEbuilt at 970-545-3512. Inspection scheduling via SAFEbuilt Colorado inspection line 1-888-774-0454, or by emailing windsor@safebuilt.com per the Re-Roof building guide. Primary Community Development contact: Raquel Chavez, Community Development Permit Technician (rchavez@daconoco.gov, 303-833-2317 ext. 128). Community Development Director: Marc Kurbansade, AICP, Deputy City Manager (mkurbansade@daconoco.gov, 303-833-2317).. Official information: https://www.daconoco.gov/875/Building-Codes-Permits.

Dacono, Colorado has adopted: 2024 International Building Code (IBC) — City of Dacono Building Codes page, adopted for all new permit submittals; 2024 International Residential Code (IRC); 2024 International Fuel Gas Code (IFGC); 2024 International Plumbing Code (IPC); 2024 International Mechanical Code (IMC); 2024 International Existing Building Code (IEBC); 2024 International Property Maintenance Code (IPMC); 2024 International Swimming Pool and Spa Code (ISPSC); 2024 International Energy Conservation Code (IECC); 2024 International Fire Code (IFC); 2023 National Electrical Code (NEC); Adopted via Ordinance 1002 (December 17, 2025, effective date of the 2024 code cycle) and subsequently amended by Ordinance 1010 (March 23, 2026); prior code cycle was adopted under Ordinance 949 (October 9, 2023). The City's live Building Codes webpage lists these three ordinances directly beneath the Adopted Codes list.; Colorado HB 1091 (Lofgren & Johnson Families Carbon Monoxide Safety Act) is separately cross-referenced on the City's Building Codes page as an applicable state law requiring carbon monoxide alarms under specified conditions — this is a state statute the City flags for awareness, not a City-adopted model code edition.; HB22-1362 (Colorado statewide energy code/electric- and solar-ready standard, applicable window July 2023-July 2026): Dacono's adoption of the 2024 IECC (effective December 17, 2025, per Ordinance 1002) falls within this window. The City's Building Codes page does not itself cite HB22-1362 or describe the 2024 IECC adoption as an HB22-1362 compliance action — this connection is inferred from the timing and code edition, not confirmed by an explicit City statement, so it is not asserted as a settled fact for any permit-level requirement in this file.. Local amendments apply — see the Dacono overview page for the full list.

The City's 2026 Fee Schedule includes a specific ADU-related inspection fee (Certification of Exception Inspection, $100, two inspections), indicating ADUs are a recognized permit scenario, but no dedicated ADU ordinance, zoning standard, or SAFEbuilt submittal guide was found publicly posted as of this review — confirm current requirements directly with Community Development before proceeding.