Accessory Dwelling Unit (ADU) Permit in Nederland, Colorado

Nederland requires an accessory dwelling unit (adu) permit for: Governed by the Town's dedicated Accessory Dwelling Unit Application, Policies, & Procedures document (found under Project-Specific Information); Subject to the same Concept Review/Site Plan Review trigger as other new construction/major-renovation projects if the ADU constitutes new construction, a 20%+ alteration, or is on sensitive land; Zoning compliance (setbacks, lot coverage, allowable uses per zoning district) must be confirmed via NMC Sec. 16-33 Yard and Bulk Requirements before design; Active Town of Nederland Contractor License required for all contractors; Standard building-permit-type requirements apply based on whether the ADU is new construction, an addition, or a conversion/remodel of existing space (e.g., a garage or basement conversion). If your project isn't listed, confirm with Town of Nederland Building, Planning & Zoning Department (Community Development) at 303-258-3266 before starting work.

In Nederland, the published Building Permit Fee (valuation-based, Table A schedule) is: Determined by project valuation per the general Building Permit Fee schedule. Additional published fees: Concept Review / Site Plan Review Fee (if triggered) — $250.00 non-refundable + $1,000 residential escrow deposit. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Nederland does not publish a plan-review timeline for this permit. Contact Town of Nederland Building, Planning & Zoning Department (Community Development) at 303-258-3266 for current turnaround.

You'll need: Accessory Dwelling Unit Application, Policies, & Procedures; Nederland Permit Application for New Residential and Commercial Construction; NMC Sec. 16-33 Yard and Bulk Requirements (reference). See the required-documents checklist on this page for details on each.

Nederland requires 1 inspection(s) for an accessory dwelling unit (adu) permit, in order: Standard construction-type inspections. Schedule each through Town of Nederland Building, Planning & Zoning Department (Community Development) (303-258-3266).

Apply through Town of Nederland Building, Planning & Zoning Department (Community Development) at 45 West First Street, Nederland, CO 80466 (mailing: PO Box 396, Nederland, CO 80466). Phone: 303-258-3266, email: planner@nederlandco.org. Office hours: Nederland Town Hall open Monday to Friday, 9 a.m. to 5 p.m. In-person appointments with the Community Planner at Town Hall are available on a staggered schedule: first and third weeks of the month on Monday and Wednesday; second and fourth weeks on Wednesday and Friday. Virtual (Teams) meetings available any time by appointment. All Building/Right-of-Way permits and Land Use Applications are submitted to planner@nederlandco.org. Building inspections are scheduled directly with the Town's contracted plan-review/inspection firm, SAFEbuilt Colorado, at (303) 450-8745.. Official information: https://www.nederlandco.gov/building-planning-zoning-department.

Nederland, Colorado has adopted: 2024 ICC family of codes (IBC, IRC, IFC, IPC, IMC, IFGC, IECC, etc.) — per the Town of Nederland Building, Planning & Zoning Department's live 'Building Guides and Permits' webpage: 'The Town of Nederland is governed under the 2024 ICC codes, with 2026 National Electrical Code (NEC) in effect.' This is the department's actively maintained, currently published code-adoption statement and is treated as the governing current code cycle for this file.; Prior/superseded code-cycle documentation still in circulation on the Town's own site: the 'Nederland Design Criteria' PDF (Other Helpful Information page) lists 'ICC IBC/IRC (Bldg. codes) 2018' and 'Nat'l Electrical (NEC) 2020 or most current'; the Town's Residential Solar Photovoltaic (PV) System Permitting Checklist (dated 'effective 1/1/2022') lists a full adopted-code table of 2018 IBC/IRC/IMC/IPC/IFGC/IECC/IPMC/IEBC editions, 2020 NEC, ICC/ANSI 117.1 (2009), 2018 IFC, and 2018 International Swimming Pool and Spa Code; and the Residential Application Checklist (SAFEbuilt Colorado submittal list) references '2018 International Code Council IBC or IRC compliance' and '2018 IECC Energy Code Compliance.' These are static PDFs that have not yet been updated to match the live department webpage's current 2024 ICC / 2026 NEC statement — the same stale-PDF-vs-live-webpage pattern documented elsewhere in this corpus (e.g. Vail). The live webpage is treated as authoritative for the currently adopted cycle; the older documents are retained here for transparency since they remain published and may still describe design/plan-review expectations SAFEbuilt applies in practice.; HB22-1362 (Colorado statewide energy code floor / electrification-readiness requirements for municipalities adopting or updating a building code) was NOT found referenced anywhere on the Town of Nederland's Building, Planning & Zoning Department pages, adopted-codes statement, fee schedule, or permit-application PDFs during this review — checked directly. Nederland's own site states only that 2024 ICC codes (which as of the 2024 IECC cycle already carry more stringent efficiency provisions than 2018 IECC) are in effect, with no separate local ordinance citation for HB22-1362 compliance found. Not asserted as applying via a specific mechanism beyond the general 2024 IECC adoption; flagged as an area to verify further with the Building Department directly (303-258-3266) rather than invented.. Local amendments apply — see the Nederland overview page for the full list.

Yes. The Town publishes a dedicated Accessory Dwelling Unit Application, Policies, & Procedures document. Beyond this ADU-specific paperwork, the project is processed under the same residential permit requirements applicable to its construction type (new build, addition, or remodel/conversion).