The City and Borough of Juneau, Alaska reviews building permits and applies the 2024 ICC codes through its Community Development Department12. CBJ also administers zoning boroughwide under Title 493. Alaska DEC oversees onsite septic systems, while CBJ requires a separate permit for development in a mapped Special Flood Hazard Area45.
At a glance
- Building permit
- Required for regulated construction; confirm the exact project requirement with CBJ16
- Permit office
- CBJ Community Development Department Permit Center7
- Zoning
- Yes, administered boroughwide by CBJ3
- Septic approval
- Alaska DEC, not CBJ4
- RV or tiny-home living
- Not confirmed; ask the CBJ Permit Center for the parcel's zoning treatment87
- Owner-builder exemption
- Not confirmed; ask the CBJ Permit Center97
- Floodplain development
- CBJ permit required in mapped Special Flood Hazard Areas5
Who to call
Building permits
City and Borough of Juneau Community Development Department Permit Center
Building, land-use, engineering and fire permit applications; building-permit review and inspections
230 S. Franklin, Juneau, AK 99801
Also useful
Alaska Department of Environmental Conservation Division of Water
State onsite septic-system information and approval
410 Willoughby Avenue, Juneau, Alaska 99811
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Juneau, Alaska?
CBJ reviews building permits and inspects regulated construction through its local permit program17. Juneau adopted the 2024 ICC codes as of October 2025, but owners should confirm the edition and local amendments that apply to their project2. The published material does not establish that every construction activity needs a permit or list every exception, so use CBJ's project guide or ask the Permit Center before starting107. Juneau is a deferred jurisdiction for State Fire Marshal review, which sends covered local projects to Juneau rather than the state plan-review office11. The state exemption for residential housing no larger than a three-plex concerns State Fire Marshal review only; it does not remove CBJ's separate local process11.
Who is the Juneau building department, and how do you reach it?
The City and Borough of Juneau Community Development Department is the local building and zoning office13. Its Permit Center accepts building, land-use, engineering and fire permit applications, while CBJ Building reviews permits and performs inspections7. The Permit Center is at 230 S. Franklin, Juneau, AK 99801, and its phone number is 907.586.07707. CBJ accepts applications through Civic Access, and inspection requests must also be scheduled through the applicant's Civic Access account6. For an application requested through CBJ's intake process, send the accompanying plans by email with the request number in the subject line; staff then process the request and collect payment10.
Does Juneau have zoning?
Yes. The City and Borough of Juneau administers zoning boroughwide under CBJ Title 493. The official zoning map controls a parcel's current zoning status, and standards vary by district and parcel1213. An RV, tiny home, manufactured home, accessory dwelling, setback, lot size or building height can therefore turn on the parcel's mapped district and proposed use14. We could not confirm one universal current rule for those topics, so ask the Permit Center to review the parcel and proposal before purchase or design7. Land division is also locally regulated: a preliminary-plat applicant must submit CBJ's application, a draft preliminary plat and the applicable fee15.
How do septic permits work in Juneau?
Onsite septic systems in the City and Borough of Juneau fall under the Alaska Department of Environmental Conservation rather than a CBJ septic program164. A system that qualifies to proceed without plan approval still requires electronic notice to DEC at least 24 hours before construction or modification17. Systems outside the authorization-by-rule categories need DEC's written approval before construction, installation, modification or operation18. Difficult sites, poor soil or high groundwater may require an alternative system, an engineer's design and DEC plan review before construction19. For an engineered system, the observing engineer checks construction and materials and submits completion documents to DEC20. DEC's septic information number is 907-262-340221.
Can you live in an RV or tiny home on your land in Juneau?
We could not confirm a current boroughwide rule that answers whether an RV or tiny home may be used as a long-term residence on private land in the City and Borough of Juneau. Because CBJ zoning applies boroughwide and varies by mapped district, ask the Permit Center how the parcel's district, utilities and proposed occupancy affect the plan before buying or moving a unit onto the site12137. A tiny home intended as a dwelling may also enter CBJ's building-permit review and local building-code process, so size alone does not establish an exemption12. If the unit will be offered as a short-term rental, CBJ requires an Alaska Business License and registration of each rental unit before operations begin22.
Building a home in Juneau: the steps, in order
- Confirm that the parcel is private and developable; federal land accounts for 97.4% of the borough23.
- Have CBJ identify the parcel's official zoning district, allowed residential use and required building, land-use, engineering or fire applications127.
- If the parcel is in a mapped Special Flood Hazard Area, include the required Floodplain Development Permit in the plan5.
- If municipal sewer is unavailable, determine whether the septic design qualifies for notification or needs DEC approval before construction1718.
What should you check before buying land in Juneau?
Start with ownership and access: federal land makes up 97.4% of the borough, so verify that the parcel is private and has usable legal access23. Only 19.8% of borough land has a slope of 15% or less, making a site-specific look at grade, excavation and access especially important24. The soil dataset rates 0% of Juneau soils as free of severe limitations for a conventional septic drain field, so treat septic feasibility as an early due-diligence item25. Check the official zoning map and whether the site is in a Special Flood Hazard Area, where CBJ requires a Floodplain Development Permit125. Also ask CBJ whether municipal water and sewer are available, because we could not confirm a boroughwide connection rule. The typical effective property-tax rate is about 0.9%, and the median annual bill is about $4,0392627.
Watch-outs
- A State Fire Marshal residential exemption does not eliminate Juneau's separate local building-permit and zoning review111.
- No owner-builder exemption was confirmed for Juneau; ask the CBJ Permit Center before assuming you can bypass any local requirement97.
- The soil dataset rates 0% of borough soils as free of severe limitations for a conventional drain field, so establish septic feasibility before relying on an undeveloped parcel25.
- Development in a mapped Special Flood Hazard Area needs a CBJ Floodplain Development Permit5.
Sources
- City and Borough of Juneau Community Development Department (2026 county census)
- Community Development – Home Page, quoted and re-checked
- Title 49 Rewrite, quoted and re-checked
- Options for Installing or Upgrading a Septic System, quoted and re-checked
- Floodplain Management, Permits, & Information, quoted and re-checked
- Community Development – Home Page, quoted and re-checked
- City and Borough of Juneau Community Development Department Permit Center (juneau.org)
- Title 49 Rewrite (2026 county census)
- (2026 county census)
- CDD Permit Application – Confirmation, quoted and re-checked
- Building Plan Review – Alaska Department of Public Safety (Alaska statewide rule), quoted and re-checked
- Ordinance 2025-40(b), Amending Title 49 Land Use Code, quoted and re-checked
- Ordinance 2025-40(b), Amending Title 49 Land Use Code, quoted and re-checked
- Ordinance 2025-40(b), Amending Title 49 Land Use Code, quoted and re-checked
- Ordinance 2025-40(b), Amending Title 49 Land Use Code, quoted and re-checked
- Alaska DEC - Installing or Upgrading a Septic System (2026 county census)
- Area Offices, quoted and re-checked
- Domestic Wastewater (Alaska statewide rule), quoted and re-checked
- Engineering Support and Plan Review, quoted and re-checked
- Engineered Wastewater Disposal Systems (Alaska statewide rule), quoted and re-checked
- Alaska Department of Environmental Conservation Division of Water (dec.alaska.gov)
- Short Term Rentals, quoted and re-checked
- Federal land share: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.