ADU Pass
Juneau
Juneau City and Borough portion
Also in: No County
ADU Pass helps homeowners in Juneau, Juneau City and Borough, Alaska navigate the permit paperwork for building an accessory dwelling unit. This area covers 2 ZIP codes.
Map
ADU details
ADU legality: unclear
Alaska leaves ADU regulation to local municipalities under home-rule or Dillon-rule authority. Juneau permits ADUs subject to local conditions per its zoning ordinance.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 150 | $3,400 | $78,000 | $81,400 |
| 600 | 600 | $3,400 | $312,000 | $315,400 |
| midpoint | 525 | $3,400 | $273,000 | $276,400 |
| maximum | 900 | $3,400 | $468,000 | $471,400 |
Fee breakdown
Viability (permitted uses)
- Long-term rental: yes Long-term rental of ADU generally permitted; landlord-tenant law and any city rental-registration ordinance apply.
- Short-term rental: with-restrictions STR rules vary by city. Juneau regulates STRs separately from ADU permitting; check local STR ordinance and HOA covenants.
- Office rental: with-restrictions Detached office rental requires home occupation permit or rezoning.
- Home office: yes Home occupation permitted with restrictions on signage and customer traffic.
- Studio / workshop: yes Personal artist studio is a permitted accessory use.
- Agriculture: with-restrictions Limited urban agriculture permitted in residential zones; livestock varies by district.
- Relative support: yes Family-occupancy ADU explicitly permitted in single-family zones.
Utilities
- Water: Juneau Water Utility · 30d connect · $4,500
- Sewer: Juneau Sewer / Wastewater · 30d connect · $5,500
- Electric: Juneau Electric Utility · 21d connect · $1,800
- Gas: Juneau Gas Utility · 30d connect · $1,500
Property values & taxes
Construction timeline
Realistic total: best 9mo · typical 14mo · worst 22mo
Financing
State ADU loans:
Insurance impact
HOA prevalence & preemption
Alaska has no HOA-ADU preemption; HOA covenants restricting ADUs are enforceable.
Regulatory overlays (2)
- flood-zone
Juneau has FEMA Special Flood Hazard Areas; elevation certificates and flood-resistant construction required for SFHA parcels. - seismic-zone
Seismic Design Category D per ASCE 7; soft-story and unreinforced-masonry seismic considerations may apply.
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
- Amendment
Legal history (timeline)
Current ordinance: City of Juneau Municipal Code — Accessory Dwelling Units, adopted 2020-01-01, last amended 2024-04-01
- 2024-01-01 — City of Juneau ADU code refresh (city-ordinance)
Conforming local-code amendments aligning with current Alaska accessory-dwelling framework.
Effect: Codified permissive ADU standards consistent with state law and local zoning.
Juneau City and Borough — county ADU rules and overlays
County ADU ordinance
The City and Borough of Juneau (CBJ) is a unified home-rule consolidated city-borough (Alaska's equivalent of a consolidated city-county; ~32,000 residents; the state capital, encompassing downtown Juneau, Douglas Island, the Mendenhall Valley, and roughly 3,255 sq mi of borough land most of which is roadless wilderness). Alaska has no statewide ADU preemption — Alaska's stateAduLaw is netEffect 'no-statewide-law' — and zoning is exercised by Alaska's home-rule and first-class boroughs (those that have organized) and individual home-rule cities. CBJ regulates accessory apartments and accessory dwellings through CBJ Code Title 49 (Land Use Code), Chapter 49.25 (Definitions) and Chapter 49.50 (Use Tables). 'Accessory apartments' are permitted by right in most residential districts (D-1, D-3, D-5, D-10, D-15) subject to maximum size (typically 850 sq ft or 35% of principal dwelling), one-per-lot limit, and parking. Detached ADUs ('accessory dwellings') are conditionally permitted with somewhat tighter standards. The Juneau Assembly amended Title 49 in 2022-2024 to expand accessory apartment allowances as part of its housing-supply response to chronic state-capital housing shortage.
County regulatory overlays
Alaska state — ADU law and programs
State financing programs
Alaska does not operate an ADU-specific statewide loan or grant program. The Alaska Housing Finance Corporation (AHFC) is the state's housing finance agency and administers a broad portfolio of mortgage products, multifamily-development financing, and grant programs. None target ADU construction directly, but several can be used to fund ADU-bearing properties or ADU-adjacent housing supply. The Lands to Housing Catalyst (launched 2025-2026) makes state-controlled land available to homebuilders in the Mat-Su Borough and Fairbanks North Star Borough, including for projects that may include ADUs.
State housing programs
Alaska's statewide ADU-relevant programs are advisory and capacity-building rather than mandatory. The Alaska Municipal League published the 'AkDU's and Don'ts' brochure (2023) as a model-ordinance and best-practices guide for boroughs and cities considering ADU-friendly zoning amendments. The Alaska Housing Finance Corporation's Innovative Housing Initiative supports prefabricated and panelized residential construction methods that include ADU-scale units. Neither is a preemption mandate; both rely on local adoption. No statewide pre-approved ADU plan catalog or impact-fee waiver statute exists.
Federal (United States) — ADU-relevant rules and programs
Federal ADU law
The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.
Federal financing programs
Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.
Federal tax credits
There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.
Federal housing programs
HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.
ZIP Codes
- 99801
- 99824
Post Office
- 709 W 9th St, 99801
- 9491 Vintage Blvd, 99801